Merging from ub-launcher3-rvc-dev @ build 6492476 am: 6e0d05fc41 am: 3cc9e2dcc1

Change-Id: Ia6be79352d96e6edcef08654a71adc485f845c33

Android.mk

@@ -129,6 +129,7 @@ LOCAL_AAPT2_ONLY := true
 LOCAL_MODULE_TAGS := optional
 
 LOCAL_STATIC_JAVA_LIBRARIES := \
+    SystemUI-statsd \
     SystemUISharedLib \
     launcherprotosnano \
     launcher_log_protos_lite
@@ -201,6 +202,7 @@ LOCAL_USE_AAPT2 := true
 LOCAL_MODULE_TAGS := optional
 
 LOCAL_STATIC_JAVA_LIBRARIES := \
+    SystemUI-statsd \
     SystemUISharedLib \
     launcherprotosnano \
     launcher_log_protos_lite

protos/launcher_atom.proto

@@ -26,6 +26,7 @@ message ItemInfo {
     Task task = 2;
     Shortcut shortcut = 3;
     Widget widget = 4;
+    FolderIcon folder_icon = 9;
   }
   // When used for launch event, stores the global predictive rank
   optional int32 rank = 5;
@@ -92,6 +93,11 @@ message Task {
   optional int32 index = 3;
 }
 
+// Represents folder in a closed state.
+message FolderIcon {
+  optional int32 cardinality = 1;
+}
+
 //////////////////////////////////////////////
 // Containers
 

quickstep/recents_ui_overrides/res/layout/predicted_hotseat_edu.xml

@@ -24,13 +24,13 @@
     <View
         android:layout_width="match_parent"
         android:layout_height="32dp"
-        android:backgroundTint="?android:attr/colorAccent"
+        android:backgroundTint="?attr/eduHalfSheetBGColor"
         android:background="@drawable/bottom_sheet_top_border" />
 
     <LinearLayout
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:background="?android:attr/colorAccent"
+        android:background="?attr/eduHalfSheetBGColor"
         android:orientation="vertical">
 
         <TextView

quickstep/recents_ui_overrides/src/com/android/launcher3/LauncherAppTransitionManagerImpl.java

@@ -16,39 +16,24 @@
 
 package com.android.launcher3;
 
-import static com.android.launcher3.LauncherState.BACKGROUND_APP;
-import static com.android.launcher3.LauncherState.HOTSEAT_ICONS;
 import static com.android.launcher3.LauncherState.NORMAL;
-import static com.android.launcher3.LauncherState.OVERVIEW;
 import static com.android.launcher3.anim.Interpolators.AGGRESSIVE_EASE;
-import static com.android.launcher3.anim.Interpolators.DEACCEL_3;
 import static com.android.launcher3.anim.Interpolators.LINEAR;
-import static com.android.launcher3.anim.Interpolators.OVERSHOOT_1_2;
-import static com.android.launcher3.states.StateAnimationConfig.ANIM_ALL_APPS_FADE;
-import static com.android.launcher3.states.StateAnimationConfig.ANIM_HOTSEAT_SCALE;
-import static com.android.launcher3.states.StateAnimationConfig.ANIM_HOTSEAT_TRANSLATE;
-import static com.android.launcher3.states.StateAnimationConfig.ANIM_VERTICAL_PROGRESS;
 import static com.android.quickstep.TaskViewUtils.findTaskViewToLaunch;
 import static com.android.quickstep.TaskViewUtils.getRecentsWindowAnimator;
-import static com.android.quickstep.views.RecentsView.ADJACENT_PAGE_OFFSET;
 
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
 import android.animation.AnimatorSet;
 import android.animation.ObjectAnimator;
-import android.animation.ValueAnimator;
 import android.content.Context;
 import android.view.View;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 
-import com.android.launcher3.LauncherState.ScaleAndTranslation;
-import com.android.launcher3.allapps.AllAppsTransitionController;
 import com.android.launcher3.anim.AnimatorPlaybackController;
 import com.android.launcher3.anim.Interpolators;
-import com.android.launcher3.anim.SpringAnimationBuilder;
-import com.android.launcher3.states.StateAnimationConfig;
 import com.android.quickstep.views.RecentsView;
 import com.android.quickstep.views.TaskView;
 import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
@@ -59,13 +44,6 @@ import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
  */
 public final class LauncherAppTransitionManagerImpl extends QuickstepAppTransitionManagerImpl {
 
-    public static final int INDEX_SHELF_ANIM = 0;
-    public static final int INDEX_RECENTS_FADE_ANIM = 1;
-    public static final int INDEX_RECENTS_TRANSLATE_X_ANIM = 2;
-    public static final int INDEX_PAUSE_TO_OVERVIEW_ANIM = 3;
-
-    public static final long ATOMIC_DURATION_FROM_PAUSED_TO_OVERVIEW = 300;
-
     public LauncherAppTransitionManagerImpl(Context context) {
         super(context);
     }
@@ -151,77 +129,4 @@ public final class LauncherAppTransitionManagerImpl extends QuickstepAppTransiti
             mLauncher.getStateManager().reapplyState();
         };
     }
-
-    @Override
-    public int getStateElementAnimationsCount() {
-        return 4;
-    }
-
-    @Override
-    public Animator createStateElementAnimation(int index, float... values) {
-        switch (index) {
-            case INDEX_SHELF_ANIM: {
-                AllAppsTransitionController aatc = mLauncher.getAllAppsController();
-                Animator springAnim = aatc.createSpringAnimation(values);
-
-                if ((OVERVIEW.getVisibleElements(mLauncher) & HOTSEAT_ICONS) != 0) {
-                    // Translate hotseat with the shelf until reaching overview.
-                    float overviewProgress = OVERVIEW.getVerticalProgress(mLauncher);
-                    ScaleAndTranslation sat = OVERVIEW.getHotseatScaleAndTranslation(mLauncher);
-                    float shiftRange = aatc.getShiftRange();
-                    if (values.length == 1) {
-                        values = new float[] {aatc.getProgress(), values[0]};
-                    }
-                    ValueAnimator hotseatAnim = ValueAnimator.ofFloat(values);
-                    hotseatAnim.addUpdateListener(anim -> {
-                        float progress = (Float) anim.getAnimatedValue();
-                        if (progress >= overviewProgress || mLauncher.isInState(BACKGROUND_APP)) {
-                            float hotseatShift = (progress - overviewProgress) * shiftRange;
-                            mLauncher.getHotseat().setTranslationY(hotseatShift + sat.translationY);
-                        }
-                    });
-                    hotseatAnim.setInterpolator(LINEAR);
-                    hotseatAnim.setDuration(springAnim.getDuration());
-
-                    AnimatorSet anim = new AnimatorSet();
-                    anim.play(hotseatAnim);
-                    anim.play(springAnim);
-                    return anim;
-                }
-
-                return springAnim;
-            }
-            case INDEX_RECENTS_FADE_ANIM:
-                return ObjectAnimator.ofFloat(mLauncher.getOverviewPanel(),
-                        RecentsView.CONTENT_ALPHA, values);
-            case INDEX_RECENTS_TRANSLATE_X_ANIM: {
-                RecentsView rv = mLauncher.getOverviewPanel();
-                return new SpringAnimationBuilder(mLauncher)
-                        .setMinimumVisibleChange(1f / rv.getPageOffsetScale())
-                        .setDampingRatio(0.8f)
-                        .setStiffness(250)
-                        .setValues(values)
-                        .build(rv, ADJACENT_PAGE_OFFSET);
-            }
-            case INDEX_PAUSE_TO_OVERVIEW_ANIM: {
-                StateAnimationConfig config = new StateAnimationConfig();
-                config.duration = ATOMIC_DURATION_FROM_PAUSED_TO_OVERVIEW;
-
-                config.setInterpolator(ANIM_VERTICAL_PROGRESS, OVERSHOOT_1_2);
-                config.setInterpolator(ANIM_ALL_APPS_FADE, DEACCEL_3);
-                if ((OVERVIEW.getVisibleElements(mLauncher) & HOTSEAT_ICONS) != 0) {
-                    config.setInterpolator(ANIM_HOTSEAT_SCALE, OVERSHOOT_1_2);
-                    config.setInterpolator(ANIM_HOTSEAT_TRANSLATE, OVERSHOOT_1_2);
-                }
-
-
-                LauncherStateManager stateManager = mLauncher.getStateManager();
-                return stateManager.createAtomicAnimation(
-                        stateManager.getCurrentStableState(), OVERVIEW, config);
-            }
-
-            default:
-                return super.createStateElementAnimation(index, values);
-        }
-    }
 }

quickstep/recents_ui_overrides/src/com/android/launcher3/appprediction/AllAppsTipView.java

@@ -26,10 +26,10 @@ import android.os.UserManager;
 import com.android.launcher3.AbstractFloatingView;
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherState;
-import com.android.launcher3.LauncherStateManager;
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.allapps.FloatingHeaderView;
+import com.android.launcher3.statemanager.StateManager.StateListener;
 import com.android.launcher3.views.ArrowTipView;
 import com.android.systemui.shared.system.LauncherEventUtil;
 
@@ -71,17 +71,16 @@ public class AllAppsTipView {
 
     public static void scheduleShowIfNeeded(Launcher launcher) {
         if (!hasSeenAllAppsTip(launcher)) {
-            launcher.getStateManager().addStateListener(
+            launcher.getStateManager().addStateListener(new StateListener<LauncherState>() {
-                    new LauncherStateManager.StateListener() {
+                @Override
-                        @Override
+                public void onStateTransitionComplete(LauncherState finalState) {
-                        public void onStateTransitionComplete(LauncherState finalState) {
+                    if (finalState == ALL_APPS) {
-                            if (finalState == ALL_APPS) {
+                        if (showAllAppsTipIfNecessary(launcher)) {
-                                if (showAllAppsTipIfNecessary(launcher)) {
+                            launcher.getStateManager().removeStateListener(this);
-                                    launcher.getStateManager().removeStateListener(this);
-                                }
-                            }
                         }
-                    });
+                    }
+                }
+            });
         }
     }
 }

quickstep/recents_ui_overrides/src/com/android/launcher3/appprediction/AppsDividerView.java

@@ -38,18 +38,18 @@ import androidx.core.content.ContextCompat;
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherState;
-import com.android.launcher3.LauncherStateManager;
 import com.android.launcher3.R;
 import com.android.launcher3.allapps.FloatingHeaderRow;
 import com.android.launcher3.allapps.FloatingHeaderView;
 import com.android.launcher3.anim.PropertySetter;
+import com.android.launcher3.statemanager.StateManager.StateListener;
 import com.android.launcher3.util.Themes;
 
 /**
  * A view which shows a horizontal divider
  */
 @TargetApi(Build.VERSION_CODES.O)
-public class AppsDividerView extends View implements LauncherStateManager.StateListener,
+public class AppsDividerView extends View implements StateListener<LauncherState>,
         FloatingHeaderRow {
 
     private static final String ALL_APPS_VISITED_COUNT = "launcher.all_apps_visited_count";

quickstep/recents_ui_overrides/src/com/android/launcher3/appprediction/PredictionUiStateManager.java

@@ -32,7 +32,6 @@ import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherAppState;
 import com.android.launcher3.LauncherSettings;
 import com.android.launcher3.LauncherState;
-import com.android.launcher3.LauncherStateManager.StateListener;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.allapps.AllAppsContainerView;
 import com.android.launcher3.allapps.AllAppsStore.OnUpdateListener;
@@ -41,6 +40,7 @@ import com.android.launcher3.icons.IconCache.ItemInfoUpdateReceiver;
 import com.android.launcher3.model.data.ItemInfo;
 import com.android.launcher3.model.data.ItemInfoWithIcon;
 import com.android.launcher3.shortcuts.ShortcutKey;
+import com.android.launcher3.statemanager.StateManager.StateListener;
 import com.android.launcher3.userevent.nano.LauncherLogProto;
 import com.android.launcher3.util.ComponentKey;
 import com.android.launcher3.util.MainThreadInitializedObject;
@@ -63,8 +63,8 @@ import java.util.stream.IntStream;
  * 4) Maintains the current active client id (for the predictions) and all updates are performed on
  * that client id.
  */
-public class PredictionUiStateManager implements StateListener, ItemInfoUpdateReceiver,
+public class PredictionUiStateManager implements StateListener<LauncherState>,
-        OnIDPChangeListener, OnUpdateListener {
+        ItemInfoUpdateReceiver, OnIDPChangeListener, OnUpdateListener {
 
     public static final String LAST_PREDICTION_ENABLED_STATE = "last_prediction_enabled_state";
 

quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/PredictedAppIcon.java

@@ -46,6 +46,7 @@ import com.android.launcher3.model.data.ItemInfo;
 import com.android.launcher3.model.data.WorkspaceItemInfo;
 import com.android.launcher3.touch.ItemClickHandler;
 import com.android.launcher3.touch.ItemLongClickListener;
+import com.android.launcher3.util.SafeCloseable;
 import com.android.launcher3.views.DoubleShadowBubbleTextView;
 
 /**
@@ -65,6 +66,7 @@ public class PredictedAppIcon extends DoubleShadowBubbleTextView implements
     private final int mNormalizedIconRadius;
     private final BlurMaskFilter mShadowFilter;
     private int mPlateColor;
+    boolean mDrawForDrag = false;
 
 
     public PredictedAppIcon(Context context) {
@@ -188,6 +190,10 @@ public class PredictedAppIcon extends DoubleShadowBubbleTextView implements
     }
 
     private void drawEffect(Canvas canvas, boolean isBadged) {
+        // Don't draw ring effect if item is about to be dragged.
+        if (mDrawForDrag) {
+            return;
+        }
         mRingPath.reset();
         getShape().addToPath(mRingPath, getOutlineOffsetX(), getOutlineOffsetY(),
                 mNormalizedIconRadius);
@@ -208,6 +214,26 @@ public class PredictedAppIcon extends DoubleShadowBubbleTextView implements
         canvas.drawPath(mRingPath, mIconRingPaint);
     }
 
+    @Override
+    public void getSourceVisualDragBounds(Rect bounds) {
+        super.getSourceVisualDragBounds(bounds);
+        if (!mIsPinned) {
+            int internalSize = (int) (bounds.width() * RING_EFFECT_RATIO);
+            bounds.inset(internalSize, internalSize);
+        }
+    }
+
+    @Override
+    public SafeCloseable prepareDrawDragView() {
+        mDrawForDrag = true;
+        invalidate();
+        SafeCloseable r = super.prepareDrawDragView();
+        return () -> {
+            r.close();
+            mDrawForDrag = false;
+        };
+    }
+
     /**
      * Creates and returns a new instance of PredictedAppIcon from WorkspaceItemInfo
      */

quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/QuickstepLauncher.java

@@ -30,6 +30,7 @@ import static com.android.quickstep.SysUINavigationMode.Mode.NO_BUTTON;
 import android.content.Intent;
 import android.content.res.Configuration;
 import android.os.Bundle;
+import android.util.Log;
 import android.view.View;
 
 import androidx.annotation.Nullable;
@@ -48,6 +49,9 @@ import com.android.launcher3.model.data.AppInfo;
 import com.android.launcher3.model.data.ItemInfo;
 import com.android.launcher3.model.data.WorkspaceItemInfo;
 import com.android.launcher3.popup.SystemShortcut;
+import com.android.launcher3.statemanager.StateManager.AtomicAnimationFactory;
+import com.android.launcher3.testing.TestProtocol;
+import com.android.launcher3.uioverrides.states.QuickstepAtomicAnimationFactory;
 import com.android.launcher3.uioverrides.touchcontrollers.FlingAndHoldTouchController;
 import com.android.launcher3.uioverrides.touchcontrollers.LandscapeEdgeSwipeController;
 import com.android.launcher3.uioverrides.touchcontrollers.NavBarToHomeTouchController;
@@ -243,6 +247,9 @@ public class QuickstepLauncher extends BaseQuickstepLauncher {
 
     @Override
     public TouchController[] createTouchControllers() {
+        if (TestProtocol.sDebugTracing) {
+            Log.d(TestProtocol.PAUSE_NOT_DETECTED, "createTouchControllers.1");
+        }
         Mode mode = SysUINavigationMode.getMode(this);
 
         ArrayList<TouchController> list = new ArrayList<>();
@@ -250,7 +257,13 @@ public class QuickstepLauncher extends BaseQuickstepLauncher {
         if (mode == NO_BUTTON) {
             list.add(new NoButtonQuickSwitchTouchController(this));
             list.add(new NavBarToHomeTouchController(this));
+            if (TestProtocol.sDebugTracing) {
+                Log.d(TestProtocol.PAUSE_NOT_DETECTED, "createTouchControllers.2");
+            }
             if (FeatureFlags.ENABLE_OVERVIEW_ACTIONS.get()) {
+                if (TestProtocol.sDebugTracing) {
+                    Log.d(TestProtocol.PAUSE_NOT_DETECTED, "createTouchControllers.3");
+                }
                 list.add(new NoButtonNavbarToOverviewTouchController(this));
             } else {
                 list.add(new FlingAndHoldTouchController(this));
@@ -279,6 +292,11 @@ public class QuickstepLauncher extends BaseQuickstepLauncher {
         return list.toArray(new TouchController[list.size()]);
     }
 
+    @Override
+    public AtomicAnimationFactory createAtomicAnimationFactory() {
+        return new QuickstepAtomicAnimationFactory(this);
+    }
+
     private static final class LauncherTaskViewController extends
             TaskViewTouchController<Launcher> {
 

quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/states/BackgroundAppState.java

@@ -17,6 +17,7 @@ package com.android.launcher3.uioverrides.states;
 
 import android.content.Context;
 
+import com.android.launcher3.BaseDraggingActivity;
 import com.android.launcher3.Launcher;
 import com.android.launcher3.allapps.AllAppsTransitionController;
 import com.android.launcher3.userevent.nano.LauncherLogProto;
@@ -54,11 +55,7 @@ public class BackgroundAppState extends OverviewState {
 
     @Override
     public float[] getOverviewScaleAndOffset(Launcher launcher) {
-        return new float[] {getOverviewScale(launcher), NO_OFFSET};
+        return getOverviewScaleAndOffsetForBackgroundState(launcher);
-    }
-
-    private float getOverviewScale(Launcher launcher) {
-        return ((RecentsView) launcher.getOverviewPanel()).getMaxScaleForFullScreen();
     }
 
     @Override
@@ -88,4 +85,11 @@ public class BackgroundAppState extends OverviewState {
     protected float getDepthUnchecked(Context context) {
         return 1f;
     }
+
+    public static float[] getOverviewScaleAndOffsetForBackgroundState(
+            BaseDraggingActivity activity) {
+        return new float[] {
+                ((RecentsView) activity.getOverviewPanel()).getMaxScaleForFullScreen(),
+                NO_OFFSET};
+    }
 }

quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/states/OverviewModalTaskState.java

@@ -19,8 +19,8 @@ import android.content.Context;
 import android.content.res.Resources;
 import android.graphics.Rect;
 
+import com.android.launcher3.BaseDraggingActivity;
 import com.android.launcher3.Launcher;
-import com.android.launcher3.R;
 import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
 import com.android.quickstep.views.RecentsView;
 
@@ -49,22 +49,25 @@ public class OverviewModalTaskState extends OverviewState {
 
     @Override
     public float[] getOverviewScaleAndOffset(Launcher launcher) {
-        Resources res = launcher.getBaseContext().getResources();
+        return getOverviewScaleAndOffsetForModalState(launcher);
-
-        Rect out = new Rect();
-        launcher.<RecentsView>getOverviewPanel().getTaskSize(out);
-        int taskHeight = out.height();
-
-        float topMargin = res.getDimension(R.dimen.task_thumbnail_top_margin);
-        float bottomMargin = res.getDimension(R.dimen.task_thumbnail_bottom_margin_with_actions);
-        float newHeight = taskHeight + topMargin + bottomMargin;
-        float scale = newHeight / taskHeight;
-
-        return new float[] {scale, 0};
     }
 
     @Override
     public float getOverviewModalness() {
         return 1.0f;
     }
+
+    public static float[] getOverviewScaleAndOffsetForModalState(BaseDraggingActivity activity) {
+        Resources res = activity.getResources();
+
+        Rect out = new Rect();
+        activity.<RecentsView>getOverviewPanel().getTaskSize(out);
+        int taskHeight = out.height();
+        activity.<RecentsView>getOverviewPanel().getModalTaskSize(out);
+        int newHeight = out.height();
+
+        float scale = (float) newHeight / taskHeight;
+
+        return new float[] {scale, NO_OFFSET};
+    }
 }

quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/states/OverviewPeekState.java

@@ -15,16 +15,7 @@
  */
 package com.android.launcher3.uioverrides.states;
 
-import static com.android.launcher3.anim.Interpolators.FAST_OUT_SLOW_IN;
-import static com.android.launcher3.anim.Interpolators.INSTANT;
-import static com.android.launcher3.anim.Interpolators.OVERSHOOT_1_7;
-import static com.android.launcher3.states.StateAnimationConfig.ANIM_OVERVIEW_FADE;
-import static com.android.launcher3.states.StateAnimationConfig.ANIM_OVERVIEW_SCRIM_FADE;
-import static com.android.launcher3.states.StateAnimationConfig.ANIM_OVERVIEW_TRANSLATE_X;
-
 import com.android.launcher3.Launcher;
-import com.android.launcher3.LauncherState;
-import com.android.launcher3.states.StateAnimationConfig;
 
 public class OverviewPeekState extends OverviewState {
     private static final float OVERVIEW_OFFSET = 0.7f;
@@ -37,14 +28,4 @@ public class OverviewPeekState extends OverviewState {
     public float[] getOverviewScaleAndOffset(Launcher launcher) {
         return new float[] {NO_SCALE, OVERVIEW_OFFSET};
     }
-
-    @Override
-    public void prepareForAtomicAnimation(Launcher launcher, LauncherState fromState,
-            StateAnimationConfig config) {
-        if (this == OVERVIEW_PEEK && fromState == NORMAL) {
-            config.setInterpolator(ANIM_OVERVIEW_FADE, INSTANT);
-            config.setInterpolator(ANIM_OVERVIEW_TRANSLATE_X, OVERSHOOT_1_7);
-            config.setInterpolator(ANIM_OVERVIEW_SCRIM_FADE, FAST_OUT_SLOW_IN);
-        }
-    }
 }

quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/states/OverviewState.java

@@ -15,36 +15,21 @@
  */
 package com.android.launcher3.uioverrides.states;
 
-import static android.view.View.VISIBLE;
-
-import static com.android.launcher3.LauncherAnimUtils.SCALE_PROPERTY;
-import static com.android.launcher3.anim.Interpolators.ACCEL;
 import static com.android.launcher3.anim.Interpolators.DEACCEL_2;
-import static com.android.launcher3.anim.Interpolators.OVERSHOOT_1_2;
-import static com.android.launcher3.anim.Interpolators.OVERSHOOT_1_7;
 import static com.android.launcher3.config.FeatureFlags.ENABLE_OVERVIEW_ACTIONS;
 import static com.android.launcher3.logging.LoggerUtils.newContainerTarget;
-import static com.android.launcher3.states.StateAnimationConfig.ANIM_OVERVIEW_FADE;
-import static com.android.launcher3.states.StateAnimationConfig.ANIM_OVERVIEW_SCALE;
-import static com.android.launcher3.states.StateAnimationConfig.ANIM_OVERVIEW_TRANSLATE_X;
-import static com.android.launcher3.states.StateAnimationConfig.ANIM_OVERVIEW_TRANSLATE_Y;
-import static com.android.launcher3.states.StateAnimationConfig.ANIM_WORKSPACE_FADE;
-import static com.android.launcher3.states.StateAnimationConfig.ANIM_WORKSPACE_SCALE;
-import static com.android.launcher3.states.StateAnimationConfig.ANIM_WORKSPACE_TRANSLATE;
 import static com.android.quickstep.SysUINavigationMode.Mode.NO_BUTTON;
 import static com.android.quickstep.SysUINavigationMode.removeShelfFromOverview;
 
 import android.content.Context;
 import android.graphics.Rect;
 import android.view.View;
-import android.view.animation.Interpolator;
 
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherState;
 import com.android.launcher3.R;
 import com.android.launcher3.Workspace;
-import com.android.launcher3.states.StateAnimationConfig;
 import com.android.launcher3.userevent.nano.LauncherLogProto.Action;
 import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
 import com.android.quickstep.SysUINavigationMode;
@@ -57,9 +42,6 @@ import com.android.quickstep.views.TaskView;
  */
 public class OverviewState extends LauncherState {
 
-    // Scale recents takes before animating in
-    private static final float RECENTS_PREPARE_SCALE = 1.33f;
-
     protected static final Rect sTempRect = new Rect();
 
     private static final int STATE_FLAGS = FLAG_WORKSPACE_ICONS_CAN_BE_DRAGGED
@@ -202,35 +184,6 @@ public class OverviewState extends LauncherState {
         }
     }
 
-    @Override
-    public void prepareForAtomicAnimation(Launcher launcher, LauncherState fromState,
-            StateAnimationConfig config) {
-        if ((fromState == NORMAL || fromState == HINT_STATE) && this == OVERVIEW) {
-            if (SysUINavigationMode.getMode(launcher) == NO_BUTTON) {
-                config.setInterpolator(ANIM_WORKSPACE_SCALE,
-                        fromState == NORMAL ? ACCEL : OVERSHOOT_1_2);
-                config.setInterpolator(ANIM_WORKSPACE_TRANSLATE, ACCEL);
-            } else {
-                config.setInterpolator(ANIM_WORKSPACE_SCALE, OVERSHOOT_1_2);
-
-                // Scale up the recents, if it is not coming from the side
-                RecentsView overview = launcher.getOverviewPanel();
-                if (overview.getVisibility() != VISIBLE || overview.getContentAlpha() == 0) {
-                    SCALE_PROPERTY.set(overview, RECENTS_PREPARE_SCALE);
-                }
-            }
-            config.setInterpolator(ANIM_WORKSPACE_FADE, OVERSHOOT_1_2);
-            config.setInterpolator(ANIM_OVERVIEW_SCALE, OVERSHOOT_1_2);
-            Interpolator translationInterpolator = ENABLE_OVERVIEW_ACTIONS.get()
-                    && removeShelfFromOverview(launcher)
-                    ? OVERSHOOT_1_2
-                    : OVERSHOOT_1_7;
-            config.setInterpolator(ANIM_OVERVIEW_TRANSLATE_X, translationInterpolator);
-            config.setInterpolator(ANIM_OVERVIEW_TRANSLATE_Y, translationInterpolator);
-            config.setInterpolator(ANIM_OVERVIEW_FADE, OVERSHOOT_1_2);
-        }
-    }
-
     public static OverviewState newBackgroundState(int id) {
         return new BackgroundAppState(id);
     }

quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/states/QuickstepAtomicAnimationFactory.java

@@ -0,0 +1,236 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.launcher3.uioverrides.states;
+
+import static android.view.View.VISIBLE;
+
+import static com.android.launcher3.LauncherAnimUtils.SCALE_PROPERTY;
+import static com.android.launcher3.LauncherState.BACKGROUND_APP;
+import static com.android.launcher3.LauncherState.HINT_STATE;
+import static com.android.launcher3.LauncherState.HOTSEAT_ICONS;
+import static com.android.launcher3.LauncherState.NORMAL;
+import static com.android.launcher3.LauncherState.OVERVIEW;
+import static com.android.launcher3.LauncherState.OVERVIEW_PEEK;
+import static com.android.launcher3.anim.Interpolators.ACCEL;
+import static com.android.launcher3.anim.Interpolators.DEACCEL;
+import static com.android.launcher3.anim.Interpolators.DEACCEL_1_7;
+import static com.android.launcher3.anim.Interpolators.DEACCEL_3;
+import static com.android.launcher3.anim.Interpolators.FAST_OUT_SLOW_IN;
+import static com.android.launcher3.anim.Interpolators.INSTANT;
+import static com.android.launcher3.anim.Interpolators.LINEAR;
+import static com.android.launcher3.anim.Interpolators.OVERSHOOT_1_2;
+import static com.android.launcher3.anim.Interpolators.OVERSHOOT_1_7;
+import static com.android.launcher3.anim.Interpolators.clampToProgress;
+import static com.android.launcher3.config.FeatureFlags.ENABLE_OVERVIEW_ACTIONS;
+import static com.android.launcher3.states.StateAnimationConfig.ANIM_ALL_APPS_FADE;
+import static com.android.launcher3.states.StateAnimationConfig.ANIM_HOTSEAT_SCALE;
+import static com.android.launcher3.states.StateAnimationConfig.ANIM_HOTSEAT_TRANSLATE;
+import static com.android.launcher3.states.StateAnimationConfig.ANIM_OVERVIEW_FADE;
+import static com.android.launcher3.states.StateAnimationConfig.ANIM_OVERVIEW_SCALE;
+import static com.android.launcher3.states.StateAnimationConfig.ANIM_OVERVIEW_SCRIM_FADE;
+import static com.android.launcher3.states.StateAnimationConfig.ANIM_OVERVIEW_TRANSLATE_X;
+import static com.android.launcher3.states.StateAnimationConfig.ANIM_OVERVIEW_TRANSLATE_Y;
+import static com.android.launcher3.states.StateAnimationConfig.ANIM_VERTICAL_PROGRESS;
+import static com.android.launcher3.states.StateAnimationConfig.ANIM_WORKSPACE_FADE;
+import static com.android.launcher3.states.StateAnimationConfig.ANIM_WORKSPACE_SCALE;
+import static com.android.launcher3.states.StateAnimationConfig.ANIM_WORKSPACE_TRANSLATE;
+import static com.android.quickstep.SysUINavigationMode.Mode.NO_BUTTON;
+import static com.android.quickstep.SysUINavigationMode.removeShelfFromOverview;
+import static com.android.quickstep.views.RecentsView.ADJACENT_PAGE_OFFSET;
+
+import android.animation.Animator;
+import android.animation.AnimatorSet;
+import android.animation.ObjectAnimator;
+import android.animation.ValueAnimator;
+import android.view.View;
+import android.view.animation.Interpolator;
+
+import com.android.launcher3.CellLayout;
+import com.android.launcher3.Hotseat;
+import com.android.launcher3.LauncherState;
+import com.android.launcher3.LauncherState.ScaleAndTranslation;
+import com.android.launcher3.Workspace;
+import com.android.launcher3.allapps.AllAppsContainerView;
+import com.android.launcher3.allapps.AllAppsTransitionController;
+import com.android.launcher3.anim.SpringAnimationBuilder;
+import com.android.launcher3.statemanager.StateManager;
+import com.android.launcher3.statemanager.StateManager.AtomicAnimationFactory;
+import com.android.launcher3.states.StateAnimationConfig;
+import com.android.launcher3.uioverrides.QuickstepLauncher;
+import com.android.quickstep.SysUINavigationMode;
+import com.android.quickstep.views.RecentsView;
+
+/**
+ * Animation factory for quickstep specific transitions
+ */
+public class QuickstepAtomicAnimationFactory extends AtomicAnimationFactory<LauncherState> {
+
+    // Scale recents takes before animating in
+    private static final float RECENTS_PREPARE_SCALE = 1.33f;
+
+    public static final int INDEX_SHELF_ANIM = 0;
+    public static final int INDEX_RECENTS_FADE_ANIM = 1;
+    public static final int INDEX_RECENTS_TRANSLATE_X_ANIM = 2;
+    public static final int INDEX_PAUSE_TO_OVERVIEW_ANIM = 3;
+    private static final int ANIM_COUNT = 4;
+
+    public static final long ATOMIC_DURATION_FROM_PAUSED_TO_OVERVIEW = 300;
+
+    private final QuickstepLauncher mLauncher;
+
+    public QuickstepAtomicAnimationFactory(QuickstepLauncher launcher) {
+        super(ANIM_COUNT);
+        mLauncher = launcher;
+    }
+
+    @Override
+    public Animator createStateElementAnimation(int index, float... values) {
+        switch (index) {
+            case INDEX_SHELF_ANIM: {
+                AllAppsTransitionController aatc = mLauncher.getAllAppsController();
+                Animator springAnim = aatc.createSpringAnimation(values);
+
+                if ((OVERVIEW.getVisibleElements(mLauncher) & HOTSEAT_ICONS) != 0) {
+                    // Translate hotseat with the shelf until reaching overview.
+                    float overviewProgress = OVERVIEW.getVerticalProgress(mLauncher);
+                    ScaleAndTranslation sat = OVERVIEW.getHotseatScaleAndTranslation(mLauncher);
+                    float shiftRange = aatc.getShiftRange();
+                    if (values.length == 1) {
+                        values = new float[] {aatc.getProgress(), values[0]};
+                    }
+                    ValueAnimator hotseatAnim = ValueAnimator.ofFloat(values);
+                    hotseatAnim.addUpdateListener(anim -> {
+                        float progress = (Float) anim.getAnimatedValue();
+                        if (progress >= overviewProgress || mLauncher.isInState(BACKGROUND_APP)) {
+                            float hotseatShift = (progress - overviewProgress) * shiftRange;
+                            mLauncher.getHotseat().setTranslationY(hotseatShift + sat.translationY);
+                        }
+                    });
+                    hotseatAnim.setInterpolator(LINEAR);
+                    hotseatAnim.setDuration(springAnim.getDuration());
+
+                    AnimatorSet anim = new AnimatorSet();
+                    anim.play(hotseatAnim);
+                    anim.play(springAnim);
+                    return anim;
+                }
+
+                return springAnim;
+            }
+            case INDEX_RECENTS_FADE_ANIM:
+                return ObjectAnimator.ofFloat(mLauncher.getOverviewPanel(),
+                        RecentsView.CONTENT_ALPHA, values);
+            case INDEX_RECENTS_TRANSLATE_X_ANIM: {
+                RecentsView rv = mLauncher.getOverviewPanel();
+                return new SpringAnimationBuilder(mLauncher)
+                        .setMinimumVisibleChange(1f / rv.getPageOffsetScale())
+                        .setDampingRatio(0.8f)
+                        .setStiffness(250)
+                        .setValues(values)
+                        .build(rv, ADJACENT_PAGE_OFFSET);
+            }
+            case INDEX_PAUSE_TO_OVERVIEW_ANIM: {
+                StateAnimationConfig config = new StateAnimationConfig();
+                config.duration = ATOMIC_DURATION_FROM_PAUSED_TO_OVERVIEW;
+
+                config.setInterpolator(ANIM_VERTICAL_PROGRESS, OVERSHOOT_1_2);
+                config.setInterpolator(ANIM_ALL_APPS_FADE, DEACCEL_3);
+                if ((OVERVIEW.getVisibleElements(mLauncher) & HOTSEAT_ICONS) != 0) {
+                    config.setInterpolator(ANIM_HOTSEAT_SCALE, OVERSHOOT_1_2);
+                    config.setInterpolator(ANIM_HOTSEAT_TRANSLATE, OVERSHOOT_1_2);
+                }
+
+                StateManager<LauncherState> stateManager = mLauncher.getStateManager();
+                return stateManager.createAtomicAnimation(
+                        stateManager.getCurrentStableState(), OVERVIEW, config);
+            }
+
+            default:
+                return super.createStateElementAnimation(index, values);
+        }
+    }
+
+    @Override
+    public void prepareForAtomicAnimation(LauncherState fromState, LauncherState toState,
+            StateAnimationConfig config) {
+        if (toState == NORMAL && fromState == OVERVIEW) {
+            config.setInterpolator(ANIM_WORKSPACE_SCALE, DEACCEL);
+            config.setInterpolator(ANIM_WORKSPACE_FADE, ACCEL);
+            config.setInterpolator(ANIM_OVERVIEW_SCALE, clampToProgress(ACCEL, 0, 0.9f));
+            config.setInterpolator(ANIM_OVERVIEW_TRANSLATE_X, ACCEL);
+            config.setInterpolator(ANIM_OVERVIEW_FADE, DEACCEL_1_7);
+            Workspace workspace = mLauncher.getWorkspace();
+
+            // Start from a higher workspace scale, but only if we're invisible so we don't jump.
+            boolean isWorkspaceVisible = workspace.getVisibility() == VISIBLE;
+            if (isWorkspaceVisible) {
+                CellLayout currentChild = (CellLayout) workspace.getChildAt(
+                        workspace.getCurrentPage());
+                isWorkspaceVisible = currentChild.getVisibility() == VISIBLE
+                        && currentChild.getShortcutsAndWidgets().getAlpha() > 0;
+            }
+            if (!isWorkspaceVisible) {
+                workspace.setScaleX(0.92f);
+                workspace.setScaleY(0.92f);
+            }
+            Hotseat hotseat = mLauncher.getHotseat();
+            boolean isHotseatVisible = hotseat.getVisibility() == VISIBLE && hotseat.getAlpha() > 0;
+            if (!isHotseatVisible) {
+                hotseat.setScaleX(0.92f);
+                hotseat.setScaleY(0.92f);
+                if (ENABLE_OVERVIEW_ACTIONS.get()) {
+                    AllAppsContainerView qsbContainer = mLauncher.getAppsView();
+                    View qsb = qsbContainer.getSearchView();
+                    boolean qsbVisible = qsb.getVisibility() == VISIBLE && qsb.getAlpha() > 0;
+                    if (!qsbVisible) {
+                        qsbContainer.setScaleX(0.92f);
+                        qsbContainer.setScaleY(0.92f);
+                    }
+                }
+            }
+        } else if (toState == NORMAL && fromState == OVERVIEW_PEEK) {
+            // Keep fully visible until the very end (when overview is offscreen) to make invisible.
+            config.setInterpolator(ANIM_OVERVIEW_FADE, t -> t < 1 ? 0 : 1);
+        } else if (toState == OVERVIEW_PEEK && fromState == NORMAL) {
+            config.setInterpolator(ANIM_OVERVIEW_FADE, INSTANT);
+            config.setInterpolator(ANIM_OVERVIEW_TRANSLATE_X, OVERSHOOT_1_7);
+            config.setInterpolator(ANIM_OVERVIEW_SCRIM_FADE, FAST_OUT_SLOW_IN);
+        } else if ((fromState == NORMAL || fromState == HINT_STATE) && toState == OVERVIEW) {
+            if (SysUINavigationMode.getMode(mLauncher) == NO_BUTTON) {
+                config.setInterpolator(ANIM_WORKSPACE_SCALE,
+                        fromState == NORMAL ? ACCEL : OVERSHOOT_1_2);
+                config.setInterpolator(ANIM_WORKSPACE_TRANSLATE, ACCEL);
+            } else {
+                config.setInterpolator(ANIM_WORKSPACE_SCALE, OVERSHOOT_1_2);
+
+                // Scale up the recents, if it is not coming from the side
+                RecentsView overview = mLauncher.getOverviewPanel();
+                if (overview.getVisibility() != VISIBLE || overview.getContentAlpha() == 0) {
+                    SCALE_PROPERTY.set(overview, RECENTS_PREPARE_SCALE);
+                }
+            }
+            config.setInterpolator(ANIM_WORKSPACE_FADE, OVERSHOOT_1_2);
+            config.setInterpolator(ANIM_OVERVIEW_SCALE, OVERSHOOT_1_2);
+            Interpolator translationInterpolator = ENABLE_OVERVIEW_ACTIONS.get()
+                    && removeShelfFromOverview(mLauncher)
+                    ? OVERSHOOT_1_2
+                    : OVERSHOOT_1_7;
+            config.setInterpolator(ANIM_OVERVIEW_TRANSLATE_X, translationInterpolator);
+            config.setInterpolator(ANIM_OVERVIEW_TRANSLATE_Y, translationInterpolator);
+            config.setInterpolator(ANIM_OVERVIEW_FADE, OVERSHOOT_1_2);
+        }
+    }
+}

quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/FlingAndHoldTouchController.java

@@ -16,7 +16,6 @@
 
 package com.android.launcher3.uioverrides.touchcontrollers;
 
-import static com.android.launcher3.LauncherAppTransitionManagerImpl.INDEX_PAUSE_TO_OVERVIEW_ANIM;
 import static com.android.launcher3.LauncherState.ALL_APPS;
 import static com.android.launcher3.LauncherState.NORMAL;
 import static com.android.launcher3.LauncherState.OVERVIEW;
@@ -31,23 +30,26 @@ import static com.android.launcher3.states.StateAnimationConfig.ANIM_WORKSPACE_S
 import static com.android.launcher3.states.StateAnimationConfig.ANIM_WORKSPACE_TRANSLATE;
 import static com.android.launcher3.states.StateAnimationConfig.PLAY_ATOMIC_OVERVIEW_PEEK;
 import static com.android.launcher3.states.StateAnimationConfig.SKIP_OVERVIEW;
+import static com.android.launcher3.uioverrides.states.QuickstepAtomicAnimationFactory.INDEX_PAUSE_TO_OVERVIEW_ANIM;
 import static com.android.launcher3.util.VibratorWrapper.OVERVIEW_HAPTIC;
 import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_OVERVIEW_DISABLED;
 
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
 import android.animation.AnimatorSet;
+import android.util.Log;
 import android.view.MotionEvent;
 import android.view.View;
 import android.view.ViewConfiguration;
 
 import com.android.launcher3.Launcher;
-import com.android.launcher3.LauncherAppTransitionManagerImpl;
 import com.android.launcher3.LauncherState;
 import com.android.launcher3.anim.AnimationSuccessListener;
 import com.android.launcher3.anim.Interpolators;
 import com.android.launcher3.states.StateAnimationConfig;
 import com.android.launcher3.states.StateAnimationConfig.AnimationFlags;
+import com.android.launcher3.testing.TestProtocol;
+import com.android.launcher3.uioverrides.states.QuickstepAtomicAnimationFactory;
 import com.android.launcher3.userevent.nano.LauncherLogProto.Action.Touch;
 import com.android.launcher3.util.VibratorWrapper;
 import com.android.quickstep.SystemUiProxy;
@@ -82,7 +84,7 @@ public class FlingAndHoldTouchController extends PortraitStatesTouchController {
 
     @Override
     protected long getAtomicDuration() {
-        return LauncherAppTransitionManagerImpl.ATOMIC_DURATION_FROM_PAUSED_TO_OVERVIEW;
+        return QuickstepAtomicAnimationFactory.ATOMIC_DURATION_FROM_PAUSED_TO_OVERVIEW;
     }
 
     @Override
@@ -178,6 +180,9 @@ public class FlingAndHoldTouchController extends PortraitStatesTouchController {
 
     @Override
     public boolean onDrag(float displacement, MotionEvent event) {
+        if (TestProtocol.sDebugTracing) {
+            Log.d(TestProtocol.PAUSE_NOT_DETECTED, "FlingAndHoldTouchController");
+        }
         float upDisplacement = -displacement;
         mMotionPauseDetector.setDisallowPause(!handlingOverviewAnim()
                 || upDisplacement < mMotionPauseMinDisplacement
@@ -206,8 +211,8 @@ public class FlingAndHoldTouchController extends PortraitStatesTouchController {
             mPeekAnim.cancel();
         }
 
-        Animator overviewAnim = mLauncher.getAppTransitionManager().createStateElementAnimation(
+        Animator overviewAnim = mLauncher.createAtomicAnimationFactory()
-                INDEX_PAUSE_TO_OVERVIEW_ANIM);
+                .createStateElementAnimation(INDEX_PAUSE_TO_OVERVIEW_ANIM);
         mAtomicAnim = new AnimatorSet();
         mAtomicAnim.addListener(new AnimationSuccessListener() {
             @Override

quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/NavBarToHomeTouchController.java

@@ -25,6 +25,7 @@ import static com.android.quickstep.views.RecentsView.ADJACENT_PAGE_OFFSET;
 import static com.android.systemui.shared.system.ActivityManagerWrapper.CLOSE_SYSTEM_WINDOWS_REASON_RECENTS;
 
 import android.animation.ValueAnimator;
+import android.util.Log;
 import android.view.MotionEvent;
 import android.view.animation.Interpolator;
 
@@ -41,6 +42,7 @@ import com.android.launcher3.anim.PendingAnimation;
 import com.android.launcher3.compat.AccessibilityManagerCompat;
 import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.states.StateAnimationConfig;
+import com.android.launcher3.testing.TestProtocol;
 import com.android.launcher3.touch.SingleAxisSwipeDetector;
 import com.android.launcher3.userevent.nano.LauncherLogProto;
 import com.android.launcher3.userevent.nano.LauncherLogProto.Action.Touch;
@@ -94,18 +96,37 @@ public class NavBarToHomeTouchController implements TouchController,
     }
 
     private boolean canInterceptTouch(MotionEvent ev) {
+        if (TestProtocol.sDebugTracing) {
+            Log.d(TestProtocol.PAUSE_NOT_DETECTED, "NavBarToHomeTouchController.canInterceptTouch "
+                    + ev);
+        }
         boolean cameFromNavBar = (ev.getEdgeFlags() & Utilities.EDGE_NAV_BAR) != 0;
         if (!cameFromNavBar) {
             return false;
         }
         if (mStartState.overviewUi || mStartState == ALL_APPS) {
+            if (TestProtocol.sDebugTracing) {
+                Log.d(TestProtocol.PAUSE_NOT_DETECTED,
+                        "NavBarToHomeTouchController.canInterceptTouch true 1 "
+                                + mStartState.overviewUi + " " + (mStartState == ALL_APPS));
+            }
             return true;
         }
         if (AbstractFloatingView.getTopOpenView(mLauncher) != null) {
+            if (TestProtocol.sDebugTracing) {
+                Log.d(TestProtocol.PAUSE_NOT_DETECTED,
+                        "NavBarToHomeTouchController.canInterceptTouch true 2 "
+                                + AbstractFloatingView.getTopOpenView(mLauncher).getClass()
+                                .getSimpleName());
+            }
             return true;
         }
         if (FeatureFlags.ASSISTANT_GIVES_LAUNCHER_FOCUS.get()
                 && AssistantUtilities.isExcludedAssistantRunning()) {
+            if (TestProtocol.sDebugTracing) {
+                Log.d(TestProtocol.PAUSE_NOT_DETECTED,
+                        "NavBarToHomeTouchController.canInterceptTouch true 3");
+            }
             return true;
         }
         return false;

quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/NoButtonNavbarToOverviewTouchController.java

@@ -27,14 +27,16 @@ import static com.android.launcher3.util.VibratorWrapper.OVERVIEW_HAPTIC;
 import android.animation.AnimatorSet;
 import android.animation.ValueAnimator;
 import android.graphics.PointF;
+import android.util.Log;
 import android.view.MotionEvent;
 
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherState;
-import com.android.launcher3.LauncherStateManager;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.anim.AnimationSuccessListener;
+import com.android.launcher3.statemanager.StateManager;
 import com.android.launcher3.states.StateAnimationConfig;
+import com.android.launcher3.testing.TestProtocol;
 import com.android.launcher3.userevent.nano.LauncherLogProto.Action.Touch;
 import com.android.launcher3.util.VibratorWrapper;
 import com.android.quickstep.util.StaggeredWorkspaceAnim;
@@ -63,6 +65,9 @@ public class NoButtonNavbarToOverviewTouchController extends FlingAndHoldTouchCo
     public NoButtonNavbarToOverviewTouchController(Launcher l) {
         super(l);
         mRecentsView = l.getOverviewPanel();
+        if (TestProtocol.sDebugTracing) {
+            Log.d(TestProtocol.PAUSE_NOT_DETECTED, "NoButtonNavbarToOverviewTouchController.ctor");
+        }
     }
 
     @Override
@@ -146,6 +151,9 @@ public class NoButtonNavbarToOverviewTouchController extends FlingAndHoldTouchCo
 
     @Override
     public boolean onDrag(float yDisplacement, float xDisplacement, MotionEvent event) {
+        if (TestProtocol.sDebugTracing) {
+            Log.d(TestProtocol.PAUSE_NOT_DETECTED, "NoButtonNavbarToOverviewTouchController");
+        }
         if (mMotionPauseDetector.isPaused()) {
             if (!mReachedOverview) {
                 mStartDisplacement.set(xDisplacement, yDisplacement);
@@ -165,7 +173,7 @@ public class NoButtonNavbarToOverviewTouchController extends FlingAndHoldTouchCo
     protected void goToOverviewOnDragEnd(float velocity) {
         float velocityDp = dpiFromPx(velocity);
         boolean isFling = Math.abs(velocityDp) > 1;
-        LauncherStateManager stateManager = mLauncher.getStateManager();
+        StateManager<LauncherState> stateManager = mLauncher.getStateManager();
         boolean goToHomeInsteadOfOverview = isFling;
         if (goToHomeInsteadOfOverview) {
             if (velocity > 0) {

quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/NoButtonQuickSwitchTouchController.java

@@ -16,7 +16,6 @@
 package com.android.launcher3.uioverrides.touchcontrollers;
 
 import static com.android.launcher3.LauncherAnimUtils.SCALE_PROPERTY;
-import static com.android.launcher3.LauncherAppTransitionManagerImpl.INDEX_PAUSE_TO_OVERVIEW_ANIM;
 import static com.android.launcher3.LauncherState.HOTSEAT_ICONS;
 import static com.android.launcher3.LauncherState.NORMAL;
 import static com.android.launcher3.LauncherState.OVERVIEW;
@@ -35,6 +34,7 @@ import static com.android.launcher3.states.StateAnimationConfig.ANIM_WORKSPACE_T
 import static com.android.launcher3.states.StateAnimationConfig.SKIP_OVERVIEW;
 import static com.android.launcher3.touch.BothAxesSwipeDetector.DIRECTION_RIGHT;
 import static com.android.launcher3.touch.BothAxesSwipeDetector.DIRECTION_UP;
+import static com.android.launcher3.uioverrides.states.QuickstepAtomicAnimationFactory.INDEX_PAUSE_TO_OVERVIEW_ANIM;
 import static com.android.launcher3.util.DefaultDisplay.getSingleFrameMs;
 import static com.android.launcher3.util.VibratorWrapper.OVERVIEW_HAPTIC;
 import static com.android.quickstep.util.ShelfPeekAnim.ShelfAnimState.CANCEL;
@@ -312,8 +312,8 @@ public class NoButtonQuickSwitchTouchController implements TouchController,
         if (mMotionPauseDetector.isPaused() && noFling) {
             cancelAnimations();
 
-            Animator overviewAnim = mLauncher.getAppTransitionManager().createStateElementAnimation(
+            Animator overviewAnim = mLauncher.createAtomicAnimationFactory()
-                    INDEX_PAUSE_TO_OVERVIEW_ANIM);
+                    .createStateElementAnimation(INDEX_PAUSE_TO_OVERVIEW_ANIM);
             overviewAnim.addListener(new AnimatorListenerAdapter() {
                 @Override
                 public void onAnimationEnd(Animator animation) {

quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/TaskViewTouchController.java

@@ -58,6 +58,7 @@ public abstract class TaskViewTouchController<T extends BaseDraggingActivity>
     private final SingleAxisSwipeDetector mDetector;
     private final RecentsView mRecentsView;
     private final int[] mTempCords = new int[2];
+    private final boolean mIsRtl;
 
     private PendingAnimation mPendingAnimation;
     private AnimatorPlaybackController mCurrentAnimation;
@@ -75,6 +76,7 @@ public abstract class TaskViewTouchController<T extends BaseDraggingActivity>
     public TaskViewTouchController(T activity) {
         mActivity = activity;
         mRecentsView = activity.getOverviewPanel();
+        mIsRtl = Utilities.isRtl(activity.getResources());
         SingleAxisSwipeDetector.Direction dir =
             mRecentsView.getPagedOrientationHandler().getOppositeSwipeDirection();
         mDetector = new SingleAxisSwipeDetector(activity, this, dir);
@@ -201,8 +203,8 @@ public abstract class TaskViewTouchController<T extends BaseDraggingActivity>
         mCurrentAnimationIsGoingUp = goingUp;
         BaseDragLayer dl = mActivity.getDragLayer();
         final int secondaryLayerDimension = orientationHandler.getSecondaryDimension(dl);
-        long maxDuration = (long) (2 * secondaryLayerDimension);
+        long maxDuration = 2 * secondaryLayerDimension;
-        int verticalFactor = -orientationHandler.getTaskDismissDirectionFactor();
+        int verticalFactor = orientationHandler.getTaskDragDisplacementFactor(mIsRtl);
         int secondaryTaskDimension = orientationHandler.getSecondaryDimension(mTaskBeingDragged);
         if (goingUp) {
             mPendingAnimation = mRecentsView.createTaskDismissAnimation(mTaskBeingDragged,
@@ -236,7 +238,7 @@ public abstract class TaskViewTouchController<T extends BaseDraggingActivity>
     public void onDragStart(boolean start, float startDisplacement) {
         PagedOrientationHandler orientationHandler = mRecentsView.getPagedOrientationHandler();
         if (mCurrentAnimation == null) {
-            reInitAnimationController(orientationHandler.isGoingUp(startDisplacement));
+            reInitAnimationController(orientationHandler.isGoingUp(startDisplacement, mIsRtl));
             mDisplacementShift = 0;
         } else {
             mDisplacementShift = mCurrentAnimation.getProgressFraction() / mProgressMultiplier;
@@ -250,7 +252,7 @@ public abstract class TaskViewTouchController<T extends BaseDraggingActivity>
         PagedOrientationHandler orientationHandler = mRecentsView.getPagedOrientationHandler();
         float totalDisplacement = displacement + mDisplacementShift;
         boolean isGoingUp = totalDisplacement == 0 ? mCurrentAnimationIsGoingUp :
-                orientationHandler.isGoingUp(totalDisplacement);
+                orientationHandler.isGoingUp(totalDisplacement, mIsRtl);
         if (isGoingUp != mCurrentAnimationIsGoingUp) {
             reInitAnimationController(isGoingUp);
             mFlingBlockCheck.blockFling();
@@ -282,7 +284,7 @@ public abstract class TaskViewTouchController<T extends BaseDraggingActivity>
         float interpolatedProgress = mCurrentAnimation.getInterpolatedProgress();
         if (fling) {
             logAction = Touch.FLING;
-            boolean goingUp = orientationHandler.isGoingUp(velocity);
+            boolean goingUp = orientationHandler.isGoingUp(velocity, mIsRtl);
             goingToEnd = goingUp == mCurrentAnimationIsGoingUp;
         } else {
             logAction = Touch.SWIPE;

quickstep/recents_ui_overrides/src/com/android/quickstep/AppToOverviewAnimationProvider.java

@@ -17,7 +17,6 @@ package com.android.quickstep;
 
 import static com.android.launcher3.LauncherState.BACKGROUND_APP;
 import static com.android.launcher3.LauncherState.OVERVIEW;
-import static com.android.launcher3.anim.Interpolators.FAST_OUT_SLOW_IN;
 import static com.android.launcher3.anim.Interpolators.TOUCH_RESPONSE_INTERPOLATOR;
 import static com.android.launcher3.statehandlers.DepthController.DEPTH;
 import static com.android.systemui.shared.system.RemoteAnimationTargetCompat.MODE_CLOSING;
@@ -36,8 +35,8 @@ import com.android.launcher3.BaseDraggingActivity;
 import com.android.launcher3.anim.AnimationSuccessListener;
 import com.android.launcher3.statehandlers.DepthController;
 import com.android.quickstep.util.AppWindowAnimationHelper;
-import com.android.quickstep.util.AppWindowAnimationHelper.TransformParams;
 import com.android.quickstep.util.RemoteAnimationProvider;
+import com.android.quickstep.util.TransformParams;
 import com.android.quickstep.views.RecentsView;
 import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
 import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplierCompat;
@@ -75,14 +74,10 @@ final class AppToOverviewAnimationProvider<T extends BaseDraggingActivity> exten
     boolean onActivityReady(T activity, Boolean wasVisible) {
         activity.<RecentsView>getOverviewPanel().showCurrentTask(mTargetTaskId);
         AbstractFloatingView.closeAllOpenViews(activity, wasVisible);
-        BaseActivityInterface.AnimationFactory factory =
+        BaseActivityInterface.AnimationFactory factory = mActivityInterface.prepareRecentsUI(
-                mActivityInterface.prepareRecentsUI(wasVisible,
+                wasVisible, (controller) -> {
-                false /* animate activity */, (controller) -> {
                     controller.dispatchOnStart();
-                    ValueAnimator anim = controller.getAnimationPlayer()
+                    controller.getAnimationPlayer().end();
-                            .setDuration(RECENTS_LAUNCH_DURATION);
-                    anim.setInterpolator(FAST_OUT_SLOW_IN);
-                    anim.start();
                 });
         factory.onRemoteAnimationReceived(null);
         factory.createActivityInterface(RECENTS_LAUNCH_DURATION);
@@ -164,9 +159,7 @@ final class AppToOverviewAnimationProvider<T extends BaseDraggingActivity> exten
         valueAnimator.setDuration(RECENTS_LAUNCH_DURATION);
         valueAnimator.setInterpolator(TOUCH_RESPONSE_INTERPOLATOR);
         valueAnimator.addUpdateListener((v) -> {
-            params.setProgress((float) v.getAnimatedValue())
+            params.setProgress((float) v.getAnimatedValue()).setTargetSet(targets);
-                    .setTargetSet(targets)
-                    .setLauncherOnTop(true);
             clipHelper.applyTransform(params);
         });
 

quickstep/recents_ui_overrides/src/com/android/quickstep/BaseSwipeUpHandler.java

@@ -15,6 +15,8 @@
  */
 package com.android.quickstep;
 
+import static com.android.launcher3.LauncherState.BACKGROUND_APP;
+import static com.android.launcher3.LauncherState.OVERVIEW;
 import static com.android.launcher3.anim.Interpolators.ACCEL_1_5;
 import static com.android.launcher3.anim.Interpolators.DEACCEL;
 import static com.android.launcher3.config.FeatureFlags.ENABLE_QUICKSTEP_LIVE_TILE;
@@ -23,44 +25,49 @@ import static com.android.launcher3.util.VibratorWrapper.OVERVIEW_HAPTIC;
 import static com.android.launcher3.views.FloatingIconView.SHAPE_PROGRESS_DURATION;
 
 import android.animation.Animator;
+import android.animation.AnimatorSet;
+import android.animation.ObjectAnimator;
 import android.annotation.TargetApi;
 import android.content.Context;
 import android.content.Intent;
+import android.graphics.Matrix;
+import android.graphics.Matrix.ScaleToFit;
 import android.graphics.PointF;
 import android.graphics.Rect;
 import android.graphics.RectF;
 import android.os.Build;
-import android.util.Pair;
 import android.view.MotionEvent;
-import android.view.View;
 import android.view.animation.Interpolator;
 
+import androidx.annotation.CallSuper;
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
 import androidx.annotation.UiThread;
 
 import com.android.launcher3.BaseDraggingActivity;
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.InvariantDeviceProfile;
-import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.anim.AnimationSuccessListener;
 import com.android.launcher3.anim.AnimatorPlaybackController;
 import com.android.launcher3.touch.PagedOrientationHandler;
 import com.android.launcher3.util.VibratorWrapper;
 import com.android.launcher3.views.FloatingIconView;
-import com.android.quickstep.BaseActivityInterface.HomeAnimationFactory;
 import com.android.quickstep.RecentsAnimationCallbacks.RecentsAnimationListener;
 import com.android.quickstep.util.ActiveGestureLog;
 import com.android.quickstep.util.ActivityInitListener;
-import com.android.quickstep.util.AppWindowAnimationHelper;
-import com.android.quickstep.util.AppWindowAnimationHelper.TransformParams;
-import com.android.quickstep.util.RecentsOrientedState;
 import com.android.quickstep.util.RectFSpringAnim;
+import com.android.quickstep.util.TaskViewSimulator;
+import com.android.quickstep.util.TransformParams;
+import com.android.quickstep.util.TransformParams.BuilderProxy;
+import com.android.quickstep.util.WindowSizeStrategy;
 import com.android.quickstep.views.RecentsView;
 import com.android.quickstep.views.TaskView;
 import com.android.systemui.shared.recents.model.ThumbnailData;
 import com.android.systemui.shared.system.InputConsumerController;
 import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
 import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplierCompat;
+import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplierCompat.SurfaceParams.Builder;
 
 import java.util.ArrayList;
 import java.util.function.Consumer;
@@ -93,7 +100,9 @@ public abstract class BaseSwipeUpHandler<T extends BaseDraggingActivity, Q exten
     protected final BaseActivityInterface<T> mActivityInterface;
     protected final InputConsumerController mInputConsumer;
 
-    protected AppWindowAnimationHelper mAppWindowAnimationHelper;
+    protected final TaskViewSimulator mTaskViewSimulator;
+    private AnimatorPlaybackController mWindowTransitionController;
+
     protected final TransformParams mTransformParams = new TransformParams();
 
     // Shift in the range of [0, 1].
@@ -113,27 +122,25 @@ public abstract class BaseSwipeUpHandler<T extends BaseDraggingActivity, Q exten
     protected T mActivity;
     protected Q mRecentsView;
     protected DeviceProfile mDp;
-    private final int mPageSpacing;
 
     protected Runnable mGestureEndCallback;
 
     protected MultiStateCallback mStateCallback;
 
     protected boolean mCanceled;
-    protected int mFinishingRecentsAnimationForNewTaskId = -1;
 
-    private RecentsOrientedState mOrientedState;
+    private boolean mRecentsViewScrollLinked = false;
 
     protected BaseSwipeUpHandler(Context context, RecentsAnimationDeviceState deviceState,
-            GestureState gestureState, InputConsumerController inputConsumer) {
+            GestureState gestureState, InputConsumerController inputConsumer,
+            WindowSizeStrategy windowSizeStrategy) {
         mContext = context;
         mDeviceState = deviceState;
         mGestureState = gestureState;
         mActivityInterface = gestureState.getActivityInterface();
         mActivityInitListener = mActivityInterface.createActivityInitListener(this::onActivityInit);
         mInputConsumer = inputConsumer;
-        mAppWindowAnimationHelper = new AppWindowAnimationHelper(context);
+        mTaskViewSimulator = new TaskViewSimulator(context, windowSizeStrategy);
-        mPageSpacing = context.getResources().getDimensionPixelSize(R.dimen.recents_page_spacing);
     }
 
     /**
@@ -193,13 +200,13 @@ public abstract class BaseSwipeUpHandler<T extends BaseDraggingActivity, Q exten
                 updateFinalShift();
             }
         });
-        mRecentsView.setAppWindowAnimationHelper(mAppWindowAnimationHelper);
         runOnRecentsAnimationStart(() ->
                 mRecentsView.setRecentsAnimationTargets(mRecentsAnimationController,
                         mRecentsAnimationTargets));
+        mRecentsViewScrollLinked = true;
     }
 
-    protected void startNewTask(int successStateFlag, Consumer<Boolean> resultCallback) {
+    protected void startNewTask(Consumer<Boolean> resultCallback) {
         // Launch the task user scrolled to (mRecentsView.getNextPage()).
         if (ENABLE_QUICKSTEP_LIVE_TILE.get()) {
             // We finish recents animation inside launchTask() when live tile is enabled.
@@ -210,24 +217,41 @@ public abstract class BaseSwipeUpHandler<T extends BaseDraggingActivity, Q exten
             if (!mCanceled) {
                 TaskView nextTask = mRecentsView.getTaskView(taskId);
                 if (nextTask != null) {
+                    mGestureState.updateLastStartedTaskId(taskId);
                     nextTask.launchTask(false /* animate */, true /* freezeTaskList */,
                             success -> {
                                 resultCallback.accept(success);
-                                if (!success) {
+                                if (success) {
+                                    if (mRecentsView.indexOfChild(nextTask)
+                                            == getLastAppearedTaskIndex()) {
+                                        onRestartLastAppearedTask();
+                                    }
+                                } else {
                                     mActivityInterface.onLaunchTaskFailed();
                                     nextTask.notifyTaskLaunchFailed(TAG);
-                                } else {
+                                    mRecentsAnimationController.finish(true /* toRecents */, null);
-                                    mActivityInterface.onLaunchTaskSuccess();
                                 }
                             }, MAIN_EXECUTOR.getHandler());
                 }
-                mStateCallback.setStateOnUiThread(successStateFlag);
             }
             mCanceled = false;
         }
         ActiveGestureLog.INSTANCE.addLog("finishRecentsAnimation", true);
     }
 
+    /**
+     * Called when we successfully startNewTask() on the task that was previously running. Normally
+     * we call resumeLastTask() when returning to the previously running task, but this handles a
+     * specific edge case: if we switch from A to B, and back to A before B appears, we need to
+     * start A again to ensure it stays on top.
+     */
+    @CallSuper
+    protected void onRestartLastAppearedTask() {
+        // Finish the controller here, since we won't get onTaskAppeared() for a task that already
+        // appeared.
+        mRecentsAnimationController.finish(false, null);
+    }
+
     /**
      * Runs the given {@param action} if the recents animation has already started, or queues it to
      * be run when it is next started.
@@ -241,42 +265,36 @@ public abstract class BaseSwipeUpHandler<T extends BaseDraggingActivity, Q exten
     }
 
     /**
+     * TODO can we remove this now that we don't finish the controller until onTaskAppeared()?
      * @return whether the recents animation has started and there are valid app targets.
      */
     protected boolean hasTargets() {
         return mRecentsAnimationTargets != null && mRecentsAnimationTargets.hasTargets();
     }
 
-    protected void updateSource(Rect stackBounds, RemoteAnimationTargetCompat runningTarget) {
-        mAppWindowAnimationHelper.updateSource(stackBounds, runningTarget);
-    }
-
     @Override
     public void onRecentsAnimationStart(RecentsAnimationController recentsAnimationController,
             RecentsAnimationTargets targets) {
         mRecentsAnimationController = recentsAnimationController;
         mRecentsAnimationTargets = targets;
         DeviceProfile dp = InvariantDeviceProfile.INSTANCE.get(mContext).getDeviceProfile(mContext);
-        final Rect overviewStackBounds;
         RemoteAnimationTargetCompat runningTaskTarget = targets.findTask(
                 mGestureState.getRunningTaskId());
 
         if (targets.minimizedHomeBounds != null && runningTaskTarget != null) {
-            overviewStackBounds = mActivityInterface
+            Rect overviewStackBounds = mActivityInterface
                     .getOverviewWindowBounds(targets.minimizedHomeBounds, runningTaskTarget);
             dp = dp.getMultiWindowProfile(mContext, overviewStackBounds);
         } else {
             // If we are not in multi-window mode, home insets should be same as system insets.
             dp = dp.copy(mContext);
-            overviewStackBounds = getStackBounds(dp);
         }
         dp.updateInsets(targets.homeContentInsets);
         dp.updateIsSeascape(mContext);
         if (runningTaskTarget != null) {
-            updateSource(overviewStackBounds, runningTaskTarget);
+            mTaskViewSimulator.setPreview(runningTaskTarget);
         }
 
-        mAppWindowAnimationHelper.prepareAnimation(dp);
         initTransitionEndpoints(dp);
 
         // Notify when the animation starts
@@ -306,51 +324,73 @@ public abstract class BaseSwipeUpHandler<T extends BaseDraggingActivity, Q exten
         }
     }
 
-    private Rect getStackBounds(DeviceProfile dp) {
+    @Override
-        if (mActivity != null) {
+    public void onTaskAppeared(RemoteAnimationTargetCompat appearedTaskTarget) {
-            int loc[] = new int[2];
+        if (mRecentsAnimationController != null) {
-            View rootView = mActivity.getRootView();
+            if (handleTaskAppeared(appearedTaskTarget)) {
-            rootView.getLocationOnScreen(loc);
+                mRecentsAnimationController.finish(false /* toRecents */,
-            return new Rect(loc[0], loc[1], loc[0] + rootView.getWidth(),
+                        null /* onFinishComplete */);
-                    loc[1] + rootView.getHeight());
+                mActivityInterface.onLaunchTaskSuccess();
-        } else {
+            }
-            return new Rect(0, 0, dp.widthPx, dp.heightPx);
         }
     }
 
+    /** @return Whether this was the task we were waiting to appear, and thus handled it. */
+    protected abstract boolean handleTaskAppeared(RemoteAnimationTargetCompat appearedTaskTarget);
+
+    /**
+     * @return The index of the TaskView in RecentsView whose taskId matches the task that will
+     * resume if we finish the controller.
+     */
+    protected int getLastAppearedTaskIndex() {
+        return mGestureState.getLastAppearedTaskId() != -1
+                ? mRecentsView.getTaskIndexForId(mGestureState.getLastAppearedTaskId())
+                : mRecentsView.getRunningTaskIndex();
+    }
+
+    /**
+     * @return Whether we are continuing a gesture that already landed on a new task,
+     * but before that task appeared.
+     */
+    protected boolean hasStartedNewTask() {
+        return mGestureState.getLastStartedTaskId() != -1;
+    }
+
     protected void initTransitionEndpoints(DeviceProfile dp) {
         mDp = dp;
 
         mTransitionDragLength = mActivityInterface.getSwipeUpDestinationAndLength(
                 dp, mContext, TEMP_RECT);
+        mTaskViewSimulator.setDp(dp);
+        mTaskViewSimulator.setLayoutRotation(
+                mDeviceState.getCurrentActiveRotation(),
+                mDeviceState.getDisplayRotation());
 
-        if (!dp.isMultiWindowMode) {
-            // When updating the target rect, also update the home bounds since the location on
-            // screen of the launcher window may be stale (position is not updated until first
-            // traversal after the window is resized).  We only do this for non-multiwindow because
-            // we otherwise use the minimized home bounds provided by the system.
-            mAppWindowAnimationHelper.updateHomeBounds(getStackBounds(dp));
-        }
-        int displayRotation = 0;
-        if (mOrientedState != null && mOrientedState.isMultipleOrientationSupportedByDevice()) {
-            // TODO(b/150300347): The first recents animation after launcher is started with the
-            //  foreground app not in landscape will look funky until that bug is fixed
-            displayRotation = mOrientedState.getDisplayRotation();
-
-            RectF tempRectF = new RectF(TEMP_RECT);
-            mOrientedState.mapRectFromRotation(displayRotation,
-                    tempRectF, dp.widthPx, dp.heightPx);
-            tempRectF.roundOut(TEMP_RECT);
-        }
-        mAppWindowAnimationHelper.updateTargetRect(TEMP_RECT);
         if (mDeviceState.isFullyGesturalNavMode()) {
             // We can drag all the way to the top of the screen.
             mDragLengthFactor = (float) dp.heightPx / mTransitionDragLength;
-            Pair<Float, Float> dragFactorStartAndMaxProgress =
+
-                    mActivityInterface.getSwipeUpPullbackStartAndMaxProgress();
+            float startScale = mTaskViewSimulator.getFullScreenScale();
-            mDragLengthFactorStartPullback = dragFactorStartAndMaxProgress.first;
+            // Start pulling back when RecentsView scale is 0.75f, and let it go down to 0.5f.
-            mDragLengthFactorMaxPullback = dragFactorStartAndMaxProgress.second;
+            mDragLengthFactorStartPullback = (0.75f - startScale) / (1 - startScale);
+            mDragLengthFactorMaxPullback = (0.5f - startScale) / (1 - startScale);
+        } else {
+            mDragLengthFactor = 1;
+            mDragLengthFactorStartPullback = mDragLengthFactorMaxPullback = 1;
         }
+
+        AnimatorSet anim = new AnimatorSet();
+        anim.setDuration(mTransitionDragLength * 2);
+        anim.setInterpolator(t -> t * mDragLengthFactor);
+        anim.play(ObjectAnimator.ofFloat(mTaskViewSimulator.recentsViewScale,
+                AnimatedFloat.VALUE,
+                mTaskViewSimulator.getFullScreenScale(), 1));
+        anim.play(ObjectAnimator.ofFloat(mTaskViewSimulator.fullScreenProgress,
+                AnimatedFloat.VALUE,
+                BACKGROUND_APP.getOverviewFullscreenProgress(),
+                OVERVIEW.getOverviewFullscreenProgress()));
+        mWindowTransitionController =
+                AnimatorPlaybackController.wrap(anim, mTransitionDragLength * 2);
     }
 
     /**
@@ -361,9 +401,6 @@ public abstract class BaseSwipeUpHandler<T extends BaseDraggingActivity, Q exten
     protected boolean onActivityInit(Boolean alreadyOnHome) {
         T createdActivity = mActivityInterface.getCreatedActivity();
         if (createdActivity != null) {
-            mOrientedState = ((RecentsView) createdActivity.getOverviewPanel())
-                .getPagedViewOrientedState();
-            mAppWindowAnimationHelper = new AppWindowAnimationHelper(mOrientedState, mContext);
             initTransitionEndpoints(InvariantDeviceProfile.INSTANCE.get(mContext)
                 .getDeviceProfile(mContext));
         }
@@ -412,35 +449,23 @@ public abstract class BaseSwipeUpHandler<T extends BaseDraggingActivity, Q exten
     }
 
     /**
-     * Applies the transform on the recents animation without any additional null checks
+     * Applies the transform on the recents animation
      */
-    protected void applyTransformUnchecked() {
+    protected void applyWindowTransform() {
-        float shift = mCurrentShift.value;
+        if (mWindowTransitionController != null) {
-        float offset = mRecentsView == null ? 0 : mRecentsView.getScrollOffsetScaled();
+            float progress = mCurrentShift.value / mDragLengthFactor;
-        float taskSize = getOrientationHandler()
+            mWindowTransitionController.setPlayFraction(progress);
-            .getPrimarySize(mAppWindowAnimationHelper.getTargetRect());
+            mTransformParams.setTargetSet(mRecentsAnimationTargets);
-        float offsetScale = getTaskCurveScaleForOffset(offset, taskSize);
-        mTransformParams
-                .setProgress(shift)
-                .setOffset(offset)
-                .setOffsetScale(offsetScale)
-                .setTargetSet(mRecentsAnimationTargets)
-                .setLauncherOnTop(true);
-        mAppWindowAnimationHelper.applyTransform(mTransformParams);
-    }
 
-    private float getTaskCurveScaleForOffset(float offset, float taskSize) {
+            if (mRecentsViewScrollLinked) {
-        int dpPixel = getOrientationHandler().getShortEdgeLength(mDp);
+                mTaskViewSimulator.setScroll(mRecentsView.getScrollOffset());
-        float distanceToReachEdge = dpPixel / 2 + taskSize / 2 + mPageSpacing;
+            }
-        float interpolation = Math.min(1, offset / distanceToReachEdge);
+            mTaskViewSimulator.apply(mTransformParams);
-        return TaskView.getCurveScaleForInterpolation(interpolation);
+        }
     }
 
     protected PagedOrientationHandler getOrientationHandler() {
-        if (mOrientedState == null) {
+        return mTaskViewSimulator.getOrientationState().getOrientationHandler();
-            return PagedOrientationHandler.PORTRAIT;
-        }
-        return mOrientedState.getOrientationHandler();
     }
 
     /**
@@ -451,104 +476,40 @@ public abstract class BaseSwipeUpHandler<T extends BaseDraggingActivity, Q exten
     protected RectFSpringAnim createWindowAnimationToHome(float startProgress,
             HomeAnimationFactory homeAnimationFactory) {
         final RectF targetRect = homeAnimationFactory.getWindowTargetRect();
-        final View floatingView = homeAnimationFactory.getFloatingView();
+        final FloatingIconView fiv = homeAnimationFactory.mIconView;
-        final boolean isFloatingIconView = floatingView instanceof FloatingIconView;
+        final boolean isFloatingIconView = fiv != null;
-        final RectF startRect = new RectF(
+
-            mAppWindowAnimationHelper.applyTransform(
+        mWindowTransitionController.setPlayFraction(startProgress / mDragLengthFactor);
-                mTransformParams.setProgress(startProgress)
+        mTaskViewSimulator.apply(mTransformParams
-                    .setTargetSet(mRecentsAnimationTargets)
+                .setProgress(startProgress)
-                    .setLauncherOnTop(false)));
+                .setTargetSet(mRecentsAnimationTargets));
-        if (isFloatingIconView) {
+        RectF cropRectF = new RectF(mTaskViewSimulator.getCurrentCropRect());
-            mOrientedState.mapInverseRectFromNormalOrientation(
+
-                    startRect, mDp.widthPx, mDp.heightPx);
+        // Matrix to map a rect in Launcher space to window space
-        }
+        Matrix homeToWindowPositionMap = new Matrix();
+        mTaskViewSimulator.applyWindowToHomeRotation(homeToWindowPositionMap);
+
+        final RectF startRect = new RectF(cropRectF);
+        mTaskViewSimulator.getCurrentMatrix().mapRect(startRect);
+        // Move the startRect to Launcher space as floatingIconView runs in Launcher
+        Matrix windowToHomePositionMap = new Matrix();
+        homeToWindowPositionMap.invert(windowToHomePositionMap);
+        windowToHomePositionMap.mapRect(startRect);
+
         RectFSpringAnim anim = new RectFSpringAnim(startRect, targetRect, mContext);
         if (isFloatingIconView) {
-            FloatingIconView fiv = (FloatingIconView) floatingView;
             anim.addAnimatorListener(fiv);
             fiv.setOnTargetChangeListener(anim::onTargetPositionChanged);
             fiv.setFastFinishRunnable(anim::end);
         }
 
-        AnimatorPlaybackController homeAnim = homeAnimationFactory.createActivityAnimationToHome();
+        SpringAnimationRunner runner = new SpringAnimationRunner(
-
+                homeAnimationFactory, cropRectF, homeToWindowPositionMap);
-        // End on a "round-enough" radius so that the shape reveal doesn't have to do too much
+        anim.addOnUpdateListener(runner);
-        // rounding at the end of the animation.
+        anim.addAnimatorListener(runner);
-        float startRadius = mAppWindowAnimationHelper.getCurrentCornerRadius();
-        float endRadius = startRect.width() / 6f;
-
-        float startTransformProgress = mTransformParams.getProgress();
-        float endTransformProgress = 1;
-
-        // We want the window alpha to be 0 once this threshold is met, so that the
-        // FolderIconView can be seen morphing into the icon shape.
-        final float windowAlphaThreshold = isFloatingIconView ? 1f - SHAPE_PROGRESS_DURATION : 1f;
-        final RectF rotatedRect = new RectF();
-        anim.addOnUpdateListener(new RectFSpringAnim.OnUpdateListener() {
-
-            @Override
-            public void onUpdate(RectF currentRect, float progress) {
-                homeAnim.setPlayFraction(progress);
-
-                rotatedRect.set(currentRect);
-                if (isFloatingIconView) {
-                    mOrientedState.mapRectFromNormalOrientation(
-                            rotatedRect, mDp.widthPx, mDp.heightPx);
-                    mTransformParams.setCornerRadius(endRadius * progress + startRadius
-                        * (1f - progress));
-                }
-                mTransformParams.setProgress(
-                    Utilities.mapRange(progress, startTransformProgress, endTransformProgress))
-                    .setCurrentRect(rotatedRect)
-                    .setTargetAlpha(getWindowAlpha(progress));
-                mAppWindowAnimationHelper.applyTransform(mTransformParams);
-
-                if (isFloatingIconView) {
-                    ((FloatingIconView) floatingView).update(currentRect, 1f, progress,
-                            windowAlphaThreshold, mAppWindowAnimationHelper.getCurrentCornerRadius(),
-                            false);
-                }
-            }
-
-            @Override
-            public void onCancel() {
-                if (isFloatingIconView) {
-                    ((FloatingIconView) floatingView).fastFinish();
-                }
-            }
-        });
-        anim.addAnimatorListener(new AnimationSuccessListener() {
-            @Override
-            public void onAnimationStart(Animator animation) {
-                homeAnim.dispatchOnStart();
-            }
-
-            @Override
-            public void onAnimationSuccess(Animator animator) {
-                homeAnim.getAnimationPlayer().end();
-            }
-        });
         return anim;
     }
 
-    /**
-     * @param progress The progress of the animation to the home screen.
-     * @return The current alpha to set on the animating app window.
-     */
-    protected float getWindowAlpha(float progress) {
-        // Alpha interpolates between [1, 0] between progress values [start, end]
-        final float start = 0f;
-        final float end = 0.85f;
-
-        if (progress <= start) {
-            return 1f;
-        }
-        if (progress >= end) {
-            return 0f;
-        }
-        return Utilities.mapToRange(progress, start, end, 1, 0, ACCEL_1_5);
-    }
-
     public interface Factory {
 
         BaseSwipeUpHandler newHandler(GestureState gestureState, long touchTimeMs,
@@ -588,4 +549,135 @@ public abstract class BaseSwipeUpHandler<T extends BaseDraggingActivity, Q exten
             };
         }
     }
+
+    /**
+     * @param progress The progress of the animation to the home screen.
+     * @return The current alpha to set on the animating app window.
+     */
+    protected float getWindowAlpha(float progress) {
+        // Alpha interpolates between [1, 0] between progress values [start, end]
+        final float start = 0f;
+        final float end = 0.85f;
+
+        if (progress <= start) {
+            return 1f;
+        }
+        if (progress >= end) {
+            return 0f;
+        }
+        return Utilities.mapToRange(progress, start, end, 1, 0, ACCEL_1_5);
+    }
+
+    protected abstract class HomeAnimationFactory {
+
+        private FloatingIconView mIconView;
+
+        public HomeAnimationFactory(@Nullable FloatingIconView iconView) {
+            mIconView = iconView;
+        }
+
+        public @NonNull RectF getWindowTargetRect() {
+            PagedOrientationHandler orientationHandler = getOrientationHandler();
+            DeviceProfile dp = mDp;
+            final int halfIconSize = dp.iconSizePx / 2;
+            float primaryDimension = orientationHandler
+                    .getPrimaryValue(dp.availableWidthPx, dp.availableHeightPx);
+            float secondaryDimension = orientationHandler
+                    .getSecondaryValue(dp.availableWidthPx, dp.availableHeightPx);
+            final float targetX =  primaryDimension / 2f;
+            final float targetY = secondaryDimension - dp.hotseatBarSizePx;
+            // Fallback to animate to center of screen.
+            return new RectF(targetX - halfIconSize, targetY - halfIconSize,
+                    targetX + halfIconSize, targetY + halfIconSize);
+        }
+
+        public abstract @NonNull AnimatorPlaybackController createActivityAnimationToHome();
+
+        public void playAtomicAnimation(float velocity) {
+            // No-op
+        }
+    }
+
+    private class SpringAnimationRunner extends AnimationSuccessListener
+            implements RectFSpringAnim.OnUpdateListener, BuilderProxy {
+
+        final Rect mCropRect = new Rect();
+        final Matrix mMatrix = new Matrix();
+
+        final RectF mWindowCurrentRect = new RectF();
+        final Matrix mHomeToWindowPositionMap;
+
+        final FloatingIconView mFIV;
+        final AnimatorPlaybackController mHomeAnim;
+        final RectF mCropRectF;
+
+        final float mStartRadius;
+        final float mEndRadius;
+        final float mWindowAlphaThreshold;
+
+        SpringAnimationRunner(HomeAnimationFactory factory, RectF cropRectF,
+                Matrix homeToWindowPositionMap) {
+            mHomeAnim = factory.createActivityAnimationToHome();
+            mCropRectF = cropRectF;
+            mHomeToWindowPositionMap = homeToWindowPositionMap;
+
+            cropRectF.roundOut(mCropRect);
+            mFIV = factory.mIconView;
+
+            // End on a "round-enough" radius so that the shape reveal doesn't have to do too much
+            // rounding at the end of the animation.
+            mStartRadius = mTaskViewSimulator.getCurrentCornerRadius();
+            mEndRadius = cropRectF.width() / 2f;
+
+            // We want the window alpha to be 0 once this threshold is met, so that the
+            // FolderIconView can be seen morphing into the icon shape.
+            mWindowAlphaThreshold = mFIV != null ? 1f - SHAPE_PROGRESS_DURATION : 1f;
+        }
+
+        @Override
+        public void onUpdate(RectF currentRect, float progress) {
+            mHomeAnim.setPlayFraction(progress);
+            mHomeToWindowPositionMap.mapRect(mWindowCurrentRect, currentRect);
+
+            mMatrix.setRectToRect(mCropRectF, mWindowCurrentRect, ScaleToFit.FILL);
+            float cornerRadius = Utilities.mapRange(progress, mStartRadius, mEndRadius);
+            mTransformParams
+                    .setTargetAlpha(getWindowAlpha(progress))
+                    .setCornerRadius(cornerRadius);
+
+            mTransformParams.applySurfaceParams(mTransformParams.createSurfaceParams(this));
+            if (mFIV != null) {
+                mFIV.update(currentRect, 1f, progress,
+                        mWindowAlphaThreshold, mMatrix.mapRadius(cornerRadius), false);
+            }
+        }
+
+        @Override
+        public void onBuildParams(Builder builder, RemoteAnimationTargetCompat app, int targetMode,
+                TransformParams params) {
+            if (app.mode == targetMode
+                    && app.activityType != RemoteAnimationTargetCompat.ACTIVITY_TYPE_HOME) {
+                builder.withMatrix(mMatrix)
+                        .withWindowCrop(mCropRect)
+                        .withCornerRadius(params.getCornerRadius());
+            }
+        }
+
+        @Override
+        public void onCancel() {
+            if (mFIV != null) {
+                mFIV.fastFinish();
+            }
+        }
+
+        @Override
+        public void onAnimationStart(Animator animation) {
+            mHomeAnim.dispatchOnStart();
+        }
+
+        @Override
+        public void onAnimationSuccess(Animator animator) {
+            mHomeAnim.getAnimationPlayer().end();
+        }
+    }
 }

quickstep/recents_ui_overrides/src/com/android/quickstep/FallbackActivityInterface.java

@@ -15,25 +15,23 @@
  */
 package com.android.quickstep;
 
+import static com.android.launcher3.LauncherAnimUtils.SCALE_PROPERTY;
 import static com.android.launcher3.anim.Interpolators.LINEAR;
 import static com.android.quickstep.SysUINavigationMode.Mode.NO_BUTTON;
-import static com.android.quickstep.fallback.FallbackRecentsView.ZOOM_PROGRESS;
+import static com.android.quickstep.fallback.RecentsState.BACKGROUND_APP;
+import static com.android.quickstep.fallback.RecentsState.DEFAULT;
 import static com.android.quickstep.util.WindowSizeStrategy.FALLBACK_RECENTS_SIZE_STRATEGY;
 import static com.android.quickstep.views.RecentsView.CONTENT_ALPHA;
+import static com.android.quickstep.views.RecentsView.FULLSCREEN_PROGRESS;
 
-import android.animation.Animator;
-import android.animation.AnimatorSet;
-import android.animation.ObjectAnimator;
 import android.content.Context;
 import android.graphics.Rect;
-import android.graphics.RectF;
 
-import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 
 import com.android.launcher3.DeviceProfile;
-import com.android.launcher3.anim.AnimationSuccessListener;
 import com.android.launcher3.anim.AnimatorPlaybackController;
+import com.android.launcher3.anim.PendingAnimation;
 import com.android.launcher3.userevent.nano.LauncherLogProto;
 import com.android.quickstep.fallback.FallbackRecentsView;
 import com.android.quickstep.util.ActivityInitListener;
@@ -89,54 +87,17 @@ public final class FallbackActivityInterface implements
         // set to zero prior to this class becoming active.
     }
 
-    @NonNull
     @Override
-    public HomeAnimationFactory prepareHomeUI() {
+    public AnimationFactory prepareRecentsUI(
+            boolean activityVisible, Consumer<AnimatorPlaybackController> callback) {
         RecentsActivity activity = getCreatedActivity();
-        RecentsView recentsView = activity.getOverviewPanel();
+        if (activity == null) {
-
-        return new HomeAnimationFactory() {
-            @NonNull
-            @Override
-            public RectF getWindowTargetRect() {
-                float centerX = recentsView.getPivotX();
-                float centerY = recentsView.getPivotY();
-                return new RectF(centerX, centerY, centerX, centerY);
-            }
-
-            @NonNull
-            @Override
-            public AnimatorPlaybackController createActivityAnimationToHome() {
-                Animator anim = ObjectAnimator.ofFloat(recentsView, CONTENT_ALPHA, 0);
-                anim.addListener(new AnimationSuccessListener() {
-                    @Override
-                    public void onAnimationSuccess(Animator animator) {
-                        recentsView.startHome();
-                    }
-                });
-                AnimatorSet animatorSet = new AnimatorSet();
-                animatorSet.play(anim);
-                long accuracy = 2 * Math.max(recentsView.getWidth(), recentsView.getHeight());
-                return AnimatorPlaybackController.wrap(animatorSet, accuracy);
-            }
-        };
-    }
-
-    @Override
-    public AnimationFactory prepareRecentsUI(boolean activityVisible,
-            boolean animateActivity, Consumer<AnimatorPlaybackController> callback) {
-        RecentsActivity activity = getCreatedActivity();
-        if (activityVisible) {
             return (transitionLength) -> { };
         }
 
+        activity.getStateManager().goToState(BACKGROUND_APP);
         FallbackRecentsView rv = activity.getOverviewPanel();
         rv.setContentAlpha(0);
-        rv.getClearAllButton().setVisibilityAlpha(0);
-        rv.setDisallowScrollToClearAll(true);
-
-        boolean fromState = !animateActivity;
-        rv.setInOverviewState(fromState);
 
         return new AnimationFactory() {
 
@@ -154,27 +115,19 @@ public final class FallbackActivityInterface implements
 
             @Override
             public void createActivityInterface(long transitionLength) {
-                AnimatorSet animatorSet = new AnimatorSet();
+                PendingAnimation pa = new PendingAnimation(transitionLength * 2);
+
                 if (isAnimatingToRecents) {
-                    ObjectAnimator anim = ObjectAnimator.ofFloat(rv, CONTENT_ALPHA, 0, 1);
+                    pa.addFloat(rv, CONTENT_ALPHA, 0, 1, LINEAR);
-                    anim.setDuration(transitionLength).setInterpolator(LINEAR);
-                    animatorSet.play(anim);
                 }
 
-                ObjectAnimator anim = ObjectAnimator.ofFloat(rv, ZOOM_PROGRESS, 1, 0);
+                pa.addFloat(rv, SCALE_PROPERTY, rv.getMaxScaleForFullScreen(), 1, LINEAR);
-                anim.setDuration(transitionLength).setInterpolator(LINEAR);
+                pa.addFloat(rv, FULLSCREEN_PROGRESS, 1, 0, LINEAR);
-                animatorSet.play(anim);
+                AnimatorPlaybackController controller = pa.createPlaybackController();
-
-                AnimatorPlaybackController controller =
-                        AnimatorPlaybackController.wrap(animatorSet, transitionLength);
 
                 // Since we are changing the start position of the UI, reapply the state, at the end
-                controller.setEndAction(() -> {
+                controller.setEndAction(() -> activity.getStateManager().goToState(
-                    boolean endState = true;
+                        controller.getInterpolatedProgress() > 0.5 ? DEFAULT : BACKGROUND_APP));
-                    rv.setInOverviewState(controller.getInterpolatedProgress() > 0.5 ?
-                                    endState : fromState);
-                });
-
                 callback.accept(controller);
             }
         };
@@ -190,7 +143,7 @@ public final class FallbackActivityInterface implements
     @Nullable
     @Override
     public RecentsActivity getCreatedActivity() {
-        return BaseRecentsActivity.ACTIVITY_TRACKER.getCreatedActivity();
+        return RecentsActivity.ACTIVITY_TRACKER.getCreatedActivity();
     }
 
     @Nullable

quickstep/recents_ui_overrides/src/com/android/quickstep/FallbackSwipeHandler.java

@@ -24,6 +24,7 @@ import static com.android.quickstep.GestureState.GestureEndTarget.RECENTS;
 import static com.android.quickstep.MultiStateCallback.DEBUG_STATES;
 import static com.android.quickstep.RecentsActivity.EXTRA_TASK_ID;
 import static com.android.quickstep.RecentsActivity.EXTRA_THUMBNAIL;
+import static com.android.quickstep.util.WindowSizeStrategy.FALLBACK_RECENTS_SIZE_STRATEGY;
 import static com.android.quickstep.views.RecentsView.UPDATE_SYSUI_FLAGS_THRESHOLD;
 
 import android.animation.Animator;
@@ -32,25 +33,24 @@ import android.app.ActivityOptions;
 import android.content.Context;
 import android.content.Intent;
 import android.graphics.PointF;
-import android.graphics.RectF;
 import android.os.Bundle;
 import android.util.ArrayMap;
 import android.view.MotionEvent;
 
+import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.R;
 import com.android.launcher3.anim.AnimationSuccessListener;
 import com.android.launcher3.anim.AnimatorPlaybackController;
-import com.android.launcher3.touch.PagedOrientationHandler;
 import com.android.launcher3.util.ObjectWrapper;
-import com.android.quickstep.BaseActivityInterface.HomeAnimationFactory;
+import com.android.quickstep.BaseActivityInterface.AnimationFactory;
 import com.android.quickstep.GestureState.GestureEndTarget;
 import com.android.quickstep.fallback.FallbackRecentsView;
 import com.android.quickstep.util.RectFSpringAnim;
-import com.android.quickstep.views.TaskView;
 import com.android.systemui.shared.recents.model.ThumbnailData;
 import com.android.systemui.shared.system.ActivityManagerWrapper;
 import com.android.systemui.shared.system.ActivityOptionsCompat;
 import com.android.systemui.shared.system.InputConsumerController;
+import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
 
 /**
  * Handles the navigation gestures when a 3rd party launcher is the default home activity.
@@ -105,10 +105,16 @@ public class FallbackSwipeHandler extends BaseSwipeUpHandler<RecentsActivity, Fa
     private final PointF mEndVelocityPxPerMs = new PointF(0, 0.5f);
     private RunningWindowAnim mFinishAnimation;
 
+    // Used to control Recents components throughout the swipe gesture.
+    private AnimatorPlaybackController mLauncherTransitionController;
+    private boolean mHasLauncherTransitionControllerStarted;
+
+    private AnimationFactory mAnimationFactory = (t) -> { };
+
     public FallbackSwipeHandler(Context context, RecentsAnimationDeviceState deviceState,
             GestureState gestureState, InputConsumerController inputConsumer,
             boolean isLikelyToStartNewTask, boolean continuingLastGesture) {
-        super(context, deviceState, gestureState, inputConsumer);
+        super(context, deviceState, gestureState, inputConsumer, FALLBACK_RECENTS_SIZE_STRATEGY);
 
         mInQuickSwitchMode = isLikelyToStartNewTask || continuingLastGesture;
         mContinuingLastGesture = continuingLastGesture;
@@ -118,9 +124,9 @@ public class FallbackSwipeHandler extends BaseSwipeUpHandler<RecentsActivity, Fa
         // Keep the home launcher invisible until we decide to land there.
         mLauncherAlpha.value = mRunningOverHome ? 1 : 0;
         if (mSwipeUpOverHome) {
-            mAppWindowAnimationHelper.setBaseAlphaCallback((t, a) -> 1 - mLauncherAlpha.value);
+            mTransformParams.setBaseAlphaCallback((t, a) -> 1 - mLauncherAlpha.value);
         } else {
-            mAppWindowAnimationHelper.setBaseAlphaCallback((t, a) -> mLauncherAlpha.value);
+            mTransformParams.setBaseAlphaCallback((t, a) -> mLauncherAlpha.value);
         }
 
         // Going home has an extra long progress to ensure that it animates into the screen
@@ -156,7 +162,7 @@ public class FallbackSwipeHandler extends BaseSwipeUpHandler<RecentsActivity, Fa
 
     private void onLauncherAlphaChanged() {
         if (mRecentsAnimationTargets != null && mGestureState.getEndTarget() == null) {
-            applyTransformUnchecked();
+            applyWindowTransform();
         }
     }
 
@@ -167,10 +173,6 @@ public class FallbackSwipeHandler extends BaseSwipeUpHandler<RecentsActivity, Fa
         mRecentsView = mActivity.getOverviewPanel();
         mRecentsView.setOnPageTransitionEndCallback(null);
         linkRecentsViewScroll();
-        mRecentsView.setDisallowScrollToClearAll(true);
-        mRecentsView.getClearAllButton().setVisibilityAlpha(0);
-        mRecentsView.setZoomProgress(1);
-
         if (!mContinuingLastGesture) {
             if (mRunningOverHome) {
                 mRecentsView.onGestureAnimationStart(mGestureState.getRunningTask());
@@ -180,9 +182,48 @@ public class FallbackSwipeHandler extends BaseSwipeUpHandler<RecentsActivity, Fa
         }
         mStateCallback.setStateOnUiThread(STATE_RECENTS_PRESENT);
         mDeviceState.enableMultipleRegions(false);
+
+        mAnimationFactory = mActivityInterface.prepareRecentsUI(alreadyOnHome,
+                this::onAnimatorPlaybackControllerCreated);
+        mAnimationFactory.createActivityInterface(mTransitionDragLength);
         return true;
     }
 
+    @Override
+    protected void initTransitionEndpoints(DeviceProfile dp) {
+        super.initTransitionEndpoints(dp);
+        if (canCreateNewOrUpdateExistingLauncherTransitionController()) {
+            mAnimationFactory.createActivityInterface(mTransitionDragLength);
+        }
+    }
+
+    private void onAnimatorPlaybackControllerCreated(AnimatorPlaybackController anim) {
+        mLauncherTransitionController = anim;
+        mLauncherTransitionController.dispatchSetInterpolator(t -> t * mDragLengthFactor);
+        mLauncherTransitionController.dispatchOnStart();
+        updateLauncherTransitionProgress();
+    }
+
+    private void updateLauncherTransitionProgress() {
+        if (mLauncherTransitionController == null
+                || !canCreateNewOrUpdateExistingLauncherTransitionController()) {
+            return;
+        }
+        // Normalize the progress to 0 to 1, as the animation controller will clamp it to that
+        // anyway. The controller mimics the drag length factor by applying it to its interpolators.
+        float progress = mCurrentShift.value / mDragLengthFactor;
+        mLauncherTransitionController.setPlayFraction(progress);
+    }
+
+    /**
+     * We don't want to change mLauncherTransitionController if mGestureState.getEndTarget() == HOME
+     * (it has its own animation) or if we're already animating the current controller.
+     * @return Whether we can create the launcher controller or update its progress.
+     */
+    private boolean canCreateNewOrUpdateExistingLauncherTransitionController() {
+        return mGestureState.getEndTarget() != HOME && !mHasLauncherTransitionControllerStarted;
+    }
+
     @Override
     protected boolean moveWindowWithRecentsScroll() {
         return mInQuickSwitchMode;
@@ -261,9 +302,8 @@ public class FallbackSwipeHandler extends BaseSwipeUpHandler<RecentsActivity, Fa
             updateOverviewThresholdPassed(mCurrentShift.value >= MIN_PROGRESS_FOR_OVERVIEW);
         }
 
-        if (mRecentsAnimationTargets != null) {
+        applyWindowTransform();
-            applyTransformUnchecked();
+        updateLauncherTransitionProgress();
-        }
     }
 
     @Override
@@ -320,15 +360,6 @@ public class FallbackSwipeHandler extends BaseSwipeUpHandler<RecentsActivity, Fa
             }
 
             if (mRecentsView != null) {
-                if (mFinishingRecentsAnimationForNewTaskId != -1) {
-                    TaskView newRunningTaskView = mRecentsView.getTaskView(
-                            mFinishingRecentsAnimationForNewTaskId);
-                    int newRunningTaskId = newRunningTaskView != null
-                            ? newRunningTaskView.getTask().key.id
-                            : -1;
-                    mRecentsView.setCurrentTask(newRunningTaskId);
-                    mGestureState.setFinishingRecentsAnimationTaskId(newRunningTaskId);
-                }
                 mRecentsView.setOnScrollChangeListener(null);
             }
         } else {
@@ -401,7 +432,7 @@ public class FallbackSwipeHandler extends BaseSwipeUpHandler<RecentsActivity, Fa
                 break;
             }
             case NEW_TASK: {
-                startNewTask(STATE_HANDLER_INVALIDATED, b -> {});
+                startNewTask(success -> { });
                 break;
             }
         }
@@ -416,7 +447,7 @@ public class FallbackSwipeHandler extends BaseSwipeUpHandler<RecentsActivity, Fa
             if (mRecentsView == null || !hasTargets()) {
                 mGestureState.setEndTarget(LAST_TASK);
             } else {
-                final int runningTaskIndex = mRecentsView.getRunningTaskIndex();
+                final int runningTaskIndex = getLastAppearedTaskIndex();
                 final int taskToLaunch = mRecentsView.getNextPage();
                 mGestureState.setEndTarget(
                         (runningTaskIndex >= 0 && taskToLaunch != runningTaskIndex)
@@ -477,11 +508,7 @@ public class FallbackSwipeHandler extends BaseSwipeUpHandler<RecentsActivity, Fa
             RecentsAnimationTargets targets) {
         super.onRecentsAnimationStart(controller, targets);
         mRecentsAnimationController.enableInputConsumer();
-
+        applyWindowTransform();
-        if (mRunningOverHome) {
-            mAppWindowAnimationHelper.prepareAnimation(mDp);
-        }
-        applyTransformUnchecked();
 
         mStateCallback.setStateOnUiThread(STATE_APP_CONTROLLER_RECEIVED);
     }
@@ -494,23 +521,17 @@ public class FallbackSwipeHandler extends BaseSwipeUpHandler<RecentsActivity, Fa
         super.onRecentsAnimationCanceled(thumbnailData);
     }
 
+    @Override
+    protected boolean handleTaskAppeared(RemoteAnimationTargetCompat appearedTaskTarget) {
+        return true;
+    }
+
     /**
      * Creates an animation that transforms the current app window into the home app.
      * @param startProgress The progress of {@link #mCurrentShift} to start the window from.
      */
     private RectFSpringAnim createWindowAnimationToHome(float startProgress, long duration) {
-        HomeAnimationFactory factory = new HomeAnimationFactory() {
+        HomeAnimationFactory factory = new HomeAnimationFactory(null) {
-            @Override
-            public RectF getWindowTargetRect() {
-                PagedOrientationHandler orientationHandler = mRecentsView != null
-                        ? mRecentsView.getPagedOrientationHandler()
-                        : (mDp.isLandscape
-                                ? PagedOrientationHandler.LANDSCAPE
-                                : PagedOrientationHandler.PORTRAIT);
-                return HomeAnimationFactory
-                    .getDefaultWindowTargetRect(orientationHandler, mDp);
-            }
-
             @Override
             public AnimatorPlaybackController createActivityAnimationToHome() {
                 AnimatorSet anim = new AnimatorSet();

quickstep/recents_ui_overrides/src/com/android/quickstep/LauncherActivityInterface.java

@@ -16,32 +16,26 @@
 package com.android.quickstep;
 
 import static com.android.launcher3.LauncherAnimUtils.SCALE_PROPERTY;
-import static com.android.launcher3.LauncherAppTransitionManagerImpl.INDEX_RECENTS_FADE_ANIM;
-import static com.android.launcher3.LauncherAppTransitionManagerImpl.INDEX_RECENTS_TRANSLATE_X_ANIM;
-import static com.android.launcher3.LauncherAppTransitionManagerImpl.INDEX_SHELF_ANIM;
 import static com.android.launcher3.LauncherState.BACKGROUND_APP;
-import static com.android.launcher3.LauncherState.NORMAL;
 import static com.android.launcher3.LauncherState.OVERVIEW;
 import static com.android.launcher3.anim.Interpolators.ACCEL_2;
 import static com.android.launcher3.anim.Interpolators.INSTANT;
 import static com.android.launcher3.anim.Interpolators.LINEAR;
+import static com.android.launcher3.uioverrides.states.QuickstepAtomicAnimationFactory.INDEX_RECENTS_FADE_ANIM;
+import static com.android.launcher3.uioverrides.states.QuickstepAtomicAnimationFactory.INDEX_RECENTS_TRANSLATE_X_ANIM;
+import static com.android.launcher3.uioverrides.states.QuickstepAtomicAnimationFactory.INDEX_SHELF_ANIM;
 import static com.android.quickstep.LauncherSwipeHandler.RECENTS_ATTACH_DURATION;
 import static com.android.quickstep.util.WindowSizeStrategy.LAUNCHER_ACTIVITY_SIZE_STRATEGY;
 import static com.android.quickstep.views.RecentsView.ADJACENT_PAGE_OFFSET;
+import static com.android.quickstep.views.RecentsView.FULLSCREEN_PROGRESS;
 
 import android.animation.Animator;
-import android.animation.AnimatorSet;
-import android.animation.ObjectAnimator;
 import android.content.Context;
 import android.graphics.Rect;
-import android.graphics.RectF;
+import android.util.Log;
-import android.os.UserHandle;
-import android.util.Pair;
 import android.view.MotionEvent;
-import android.view.View;
 import android.view.animation.Interpolator;
 
-import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.annotation.UiThread;
 
@@ -52,20 +46,19 @@ import com.android.launcher3.LauncherInitListener;
 import com.android.launcher3.LauncherState;
 import com.android.launcher3.allapps.DiscoveryBounce;
 import com.android.launcher3.anim.AnimatorPlaybackController;
+import com.android.launcher3.anim.PendingAnimation;
 import com.android.launcher3.appprediction.PredictionUiStateManager;
 import com.android.launcher3.statehandlers.DepthController;
 import com.android.launcher3.statehandlers.DepthController.ClampedDepthProperty;
+import com.android.launcher3.testing.TestProtocol;
 import com.android.launcher3.userevent.nano.LauncherLogProto;
-import com.android.launcher3.views.FloatingIconView;
 import com.android.quickstep.SysUINavigationMode.Mode;
 import com.android.quickstep.util.ActivityInitListener;
 import com.android.quickstep.util.LayoutUtils;
 import com.android.quickstep.util.ShelfPeekAnim;
 import com.android.quickstep.util.ShelfPeekAnim.ShelfAnimState;
-import com.android.quickstep.util.StaggeredWorkspaceAnim;
 import com.android.quickstep.views.LauncherRecentsView;
 import com.android.quickstep.views.RecentsView;
-import com.android.quickstep.views.TaskView;
 import com.android.systemui.plugins.shared.LauncherOverlayManager;
 import com.android.systemui.shared.recents.model.ThumbnailData;
 import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
@@ -78,9 +71,6 @@ import java.util.function.Predicate;
  */
 public final class LauncherActivityInterface implements BaseActivityInterface<Launcher> {
 
-    private Pair<Float, Float> mSwipeUpPullbackStartAndMaxProgress =
-            BaseActivityInterface.super.getSwipeUpPullbackStartAndMaxProgress();
-
     @Override
     public int getSwipeUpDestinationAndLength(DeviceProfile dp, Context context, Rect outRect) {
         LAUNCHER_ACTIVITY_SIZE_STRATEGY.calculateTaskSize(context, dp, outRect);
@@ -93,11 +83,6 @@ public final class LauncherActivityInterface implements BaseActivityInterface<La
         }
     }
 
-    @Override
-    public Pair<Float, Float> getSwipeUpPullbackStartAndMaxProgress() {
-        return mSwipeUpPullbackStartAndMaxProgress;
-    }
-
     @Override
     public void onTransitionCancelled(boolean activityVisible) {
         Launcher launcher = getCreatedActivity();
@@ -148,66 +133,9 @@ public final class LauncherActivityInterface implements BaseActivityInterface<La
         launcher.onAssistantVisibilityChanged(visibility);
     }
 
-    @NonNull
     @Override
-    public HomeAnimationFactory prepareHomeUI() {
+    public AnimationFactory prepareRecentsUI(
-        Launcher launcher = getCreatedActivity();
+            boolean activityVisible, Consumer<AnimatorPlaybackController> callback) {
-        final DeviceProfile dp = launcher.getDeviceProfile();
-        final RecentsView recentsView = launcher.getOverviewPanel();
-        final TaskView runningTaskView = recentsView.getRunningTaskView();
-        final View workspaceView;
-        if (runningTaskView != null && runningTaskView.getTask().key.getComponent() != null) {
-            workspaceView = launcher.getWorkspace().getFirstMatchForAppClose(
-                    runningTaskView.getTask().key.getComponent().getPackageName(),
-                    UserHandle.of(runningTaskView.getTask().key.userId));
-        } else {
-            workspaceView = null;
-        }
-        final RectF iconLocation = new RectF();
-        boolean canUseWorkspaceView = workspaceView != null && workspaceView.isAttachedToWindow();
-        FloatingIconView floatingIconView = canUseWorkspaceView
-                ? FloatingIconView.getFloatingIconView(launcher, workspaceView,
-                        true /* hideOriginal */, iconLocation, false /* isOpening */)
-                : null;
-        setLauncherHideBackArrow(true);
-        return new HomeAnimationFactory() {
-            @Nullable
-            @Override
-            public View getFloatingView() {
-                return floatingIconView;
-            }
-
-            @NonNull
-            @Override
-            public RectF getWindowTargetRect() {
-                if (canUseWorkspaceView) {
-                    return iconLocation;
-                } else {
-                    return HomeAnimationFactory
-                        .getDefaultWindowTargetRect(recentsView.getPagedOrientationHandler(), dp);
-                }
-            }
-
-            @NonNull
-            @Override
-            public AnimatorPlaybackController createActivityAnimationToHome() {
-                // Return an empty APC here since we have an non-user controlled animation to home.
-                long accuracy = 2 * Math.max(dp.widthPx, dp.heightPx);
-                return launcher.getStateManager().createAnimationToNewWorkspace(NORMAL, accuracy,
-                        0 /* animComponents */);
-            }
-
-            @Override
-            public void playAtomicAnimation(float velocity) {
-                new StaggeredWorkspaceAnim(launcher, velocity, true /* animateOverviewScrim */)
-                        .start();
-            }
-        };
-    }
-
-    @Override
-    public AnimationFactory prepareRecentsUI(boolean activityVisible,
-            boolean animateActivity, Consumer<AnimatorPlaybackController> callback) {
         BaseQuickstepLauncher launcher = getCreatedActivity();
         final LauncherState startState = launcher.getStateManager().getState();
 
@@ -217,8 +145,7 @@ public final class LauncherActivityInterface implements BaseActivityInterface<La
         }
         launcher.getStateManager().setRestState(resetState);
 
-        final LauncherState fromState = animateActivity ? BACKGROUND_APP : OVERVIEW;
+        launcher.getStateManager().goToState(BACKGROUND_APP, false);
-        launcher.getStateManager().goToState(fromState, false);
         // Since all apps is not visible, we can safely reset the scroll position.
         // This ensures then the next swipe up to all-apps starts from scroll 0.
         launcher.getAppsView().reset(false /* animate */);
@@ -229,7 +156,7 @@ public final class LauncherActivityInterface implements BaseActivityInterface<La
 
             @Override
             public void createActivityInterface(long transitionLength) {
-                createActivityInterfaceInternal(launcher, fromState, transitionLength, callback);
+                callback.accept(createBackgroundToOverviewAnim(launcher, transitionLength));
                 // Creating the activity controller animation sometimes reapplies the launcher state
                 // (because we set the animation as the current state animation), so we reapply the
                 // attached state here as well to ensure recents is shown/hidden appropriately.
@@ -283,74 +210,45 @@ public final class LauncherActivityInterface implements BaseActivityInterface<La
         };
     }
 
-    private void createActivityInterfaceInternal(Launcher activity, LauncherState fromState,
+    private AnimatorPlaybackController createBackgroundToOverviewAnim(
-            long transitionLength, Consumer<AnimatorPlaybackController> callback) {
+            Launcher activity, long transitionLength) {
-        LauncherState endState = OVERVIEW;
+
-        if (fromState == endState) {
+        PendingAnimation pa = new PendingAnimation(transitionLength * 2);
-            return;
-        }
 
-        AnimatorSet anim = new AnimatorSet();
         if (!activity.getDeviceProfile().isVerticalBarLayout()
                 && SysUINavigationMode.getMode(activity) != Mode.NO_BUTTON) {
             // Don't animate the shelf when the mode is NO_BUTTON, because we update it atomically.
-            anim.play(activity.getStateManager().createStateElementAnimation(
+            pa.add(activity.getStateManager().createStateElementAnimation(
                     INDEX_SHELF_ANIM,
-                    fromState.getVerticalProgress(activity),
+                    BACKGROUND_APP.getVerticalProgress(activity),
-                    endState.getVerticalProgress(activity)));
+                    OVERVIEW.getVerticalProgress(activity)));
         }
 
         // Animate the blur and wallpaper zoom
-        DepthController depthController = getDepthController();
+        float fromDepthRatio = BACKGROUND_APP.getDepth(activity);
-        float fromDepthRatio = fromState.getDepth(activity);
+        float toDepthRatio = OVERVIEW.getDepth(activity);
-        float toDepthRatio = endState.getDepth(activity);
+        pa.addFloat(getDepthController(), new ClampedDepthProperty(fromDepthRatio, toDepthRatio),
-        Animator depthAnimator = ObjectAnimator.ofFloat(depthController,
+                fromDepthRatio, toDepthRatio, LINEAR);
-                new ClampedDepthProperty(fromDepthRatio, toDepthRatio),
-                fromDepthRatio, toDepthRatio);
-        anim.play(depthAnimator);
 
-        playScaleDownAnim(anim, activity, fromState, endState);
 
-        anim.setDuration(transitionLength * 2);
+        //  Scale down recents from being full screen to being in overview.
-        anim.setInterpolator(LINEAR);
+        RecentsView recentsView = activity.getOverviewPanel();
-        AnimatorPlaybackController controller =
+        pa.addFloat(recentsView, SCALE_PROPERTY,
-                AnimatorPlaybackController.wrap(anim, transitionLength * 2);
+                BACKGROUND_APP.getOverviewScaleAndOffset(activity)[0],
+                OVERVIEW.getOverviewScaleAndOffset(activity)[0],
+                LINEAR);
+        pa.addFloat(recentsView, FULLSCREEN_PROGRESS,
+                BACKGROUND_APP.getOverviewFullscreenProgress(),
+                OVERVIEW.getOverviewFullscreenProgress(),
+                LINEAR);
+
+        AnimatorPlaybackController controller = pa.createPlaybackController();
         activity.getStateManager().setCurrentUserControlledAnimation(controller);
 
         // Since we are changing the start position of the UI, reapply the state, at the end
-        controller.setEndAction(() -> {
+        controller.setEndAction(() -> activity.getStateManager().goToState(
-            activity.getStateManager().goToState(
+                controller.getInterpolatedProgress() > 0.5 ? OVERVIEW : BACKGROUND_APP, false));
-                    controller.getInterpolatedProgress() > 0.5 ? endState : fromState, false);
+        return controller;
-        });
-        callback.accept(controller);
-    }
-
-    /**
-     * Scale down recents from the center task being full screen to being in overview.
-     */
-    private void playScaleDownAnim(AnimatorSet anim, Launcher launcher, LauncherState fromState,
-            LauncherState endState) {
-        RecentsView recentsView = launcher.getOverviewPanel();
-        if (recentsView.getCurrentPageTaskView() == null) {
-            return;
-        }
-
-        float fromFullscreenProgress = fromState.getOverviewFullscreenProgress();
-        float endFullscreenProgress = endState.getOverviewFullscreenProgress();
-
-        float fromScale = fromState.getOverviewScaleAndOffset(launcher)[0];
-        float endScale = endState.getOverviewScaleAndOffset(launcher)[0];
-
-        Animator scale = ObjectAnimator.ofFloat(recentsView, SCALE_PROPERTY, fromScale, endScale);
-        Animator applyFullscreenProgress = ObjectAnimator.ofFloat(recentsView,
-                RecentsView.FULLSCREEN_PROGRESS, fromFullscreenProgress, endFullscreenProgress);
-        anim.playTogether(scale, applyFullscreenProgress);
-
-        // Start pulling back when RecentsView scale is 0.75f, and let it go down to 0.5f.
-        float pullbackStartProgress = (0.75f - fromScale) / (endScale - fromScale);
-        float pullbackMaxProgress = (0.5f - fromScale) / (endScale - fromScale);
-        mSwipeUpPullbackStartAndMaxProgress = new Pair<>(
-                pullbackStartProgress, pullbackMaxProgress);
     }
 
     @Override
@@ -383,6 +281,9 @@ public final class LauncherActivityInterface implements BaseActivityInterface<La
 
     @Override
     public boolean switchToRecentsIfVisible(Runnable onCompleteCallback) {
+        if (TestProtocol.sDebugTracing) {
+            Log.d(TestProtocol.OVERIEW_NOT_ALLAPPS, "switchToRecentsIfVisible");
+        }
         Launcher launcher = getVisibleLauncher();
         if (launcher == null) {
             return false;

quickstep/recents_ui_overrides/src/com/android/quickstep/LauncherSwipeHandler.java

@@ -17,8 +17,7 @@ package com.android.quickstep;
 
 import static com.android.launcher3.BaseActivity.INVISIBLE_BY_STATE_HANDLER;
 import static com.android.launcher3.BaseActivity.STATE_HANDLER_INVISIBILITY_FLAGS;
-import static com.android.launcher3.LauncherState.BACKGROUND_APP;
+import static com.android.launcher3.LauncherState.NORMAL;
-import static com.android.launcher3.LauncherState.OVERVIEW;
 import static com.android.launcher3.anim.Interpolators.DEACCEL;
 import static com.android.launcher3.anim.Interpolators.LINEAR;
 import static com.android.launcher3.anim.Interpolators.OVERSHOOT_1_2;
@@ -32,7 +31,6 @@ import static com.android.quickstep.GestureState.GestureEndTarget.NEW_TASK;
 import static com.android.quickstep.GestureState.GestureEndTarget.RECENTS;
 import static com.android.quickstep.GestureState.STATE_END_TARGET_ANIMATION_FINISHED;
 import static com.android.quickstep.GestureState.STATE_RECENTS_SCROLLING_FINISHED;
-import static com.android.quickstep.GestureState.STATE_TASK_APPEARED_DURING_SWITCH;
 import static com.android.quickstep.MultiStateCallback.DEBUG_STATES;
 import static com.android.quickstep.SysUINavigationMode.Mode.TWO_BUTTONS;
 import static com.android.quickstep.util.ShelfPeekAnim.ShelfAnimState.HIDE;
@@ -42,17 +40,16 @@ import static com.android.quickstep.views.RecentsView.UPDATE_SYSUI_FLAGS_THRESHO
 
 import android.animation.Animator;
 import android.animation.AnimatorSet;
-import android.animation.ObjectAnimator;
 import android.animation.TimeInterpolator;
 import android.animation.ValueAnimator;
 import android.annotation.TargetApi;
 import android.content.Context;
 import android.content.Intent;
 import android.graphics.PointF;
-import android.graphics.Rect;
 import android.graphics.RectF;
 import android.os.Build;
 import android.os.SystemClock;
+import android.os.UserHandle;
 import android.view.View;
 import android.view.View.OnApplyWindowInsetsListener;
 import android.view.ViewTreeObserver.OnDrawListener;
@@ -65,6 +62,7 @@ import androidx.annotation.UiThread;
 import com.android.launcher3.AbstractFloatingView;
 import com.android.launcher3.BaseDraggingActivity;
 import com.android.launcher3.DeviceProfile;
+import com.android.launcher3.Launcher;
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.anim.AnimationSuccessListener;
@@ -75,16 +73,16 @@ import com.android.launcher3.userevent.nano.LauncherLogProto.Action.Direction;
 import com.android.launcher3.userevent.nano.LauncherLogProto.Action.Touch;
 import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
 import com.android.launcher3.util.TraceHelper;
+import com.android.launcher3.views.FloatingIconView;
 import com.android.quickstep.BaseActivityInterface.AnimationFactory;
-import com.android.quickstep.BaseActivityInterface.HomeAnimationFactory;
 import com.android.quickstep.GestureState.GestureEndTarget;
 import com.android.quickstep.inputconsumers.OverviewInputConsumer;
 import com.android.quickstep.util.ActiveGestureLog;
-import com.android.quickstep.util.AppWindowAnimationHelper.TargetAlphaProvider;
 import com.android.quickstep.util.RectFSpringAnim;
 import com.android.quickstep.util.ShelfPeekAnim;
 import com.android.quickstep.util.ShelfPeekAnim.ShelfAnimState;
-import com.android.quickstep.util.TaskViewSimulator;
+import com.android.quickstep.util.StaggeredWorkspaceAnim;
+import com.android.quickstep.util.TransformParams.TargetAlphaProvider;
 import com.android.quickstep.views.LiveTileOverlay;
 import com.android.quickstep.views.RecentsView;
 import com.android.quickstep.views.TaskView;
@@ -97,8 +95,8 @@ import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
  * Handles the navigation gestures when Launcher is the default home activity.
  */
 @TargetApi(Build.VERSION_CODES.O)
-public class LauncherSwipeHandler<T extends BaseDraggingActivity>
+public class LauncherSwipeHandler extends BaseSwipeUpHandler<Launcher, RecentsView>
-        extends BaseSwipeUpHandler<T, RecentsView> implements OnApplyWindowInsetsListener {
+        implements OnApplyWindowInsetsListener {
     private static final String TAG = LauncherSwipeHandler.class.getSimpleName();
 
     private static final String[] STATE_NAMES = DEBUG_STATES ? new String[16] : null;
@@ -152,7 +150,6 @@ public class LauncherSwipeHandler<T extends BaseDraggingActivity>
             STATE_LAUNCHER_PRESENT | STATE_LAUNCHER_DRAWN | STATE_LAUNCHER_STARTED;
 
     public static final long MAX_SWIPE_DURATION = 350;
-    public static final long MIN_SWIPE_DURATION = 80;
     public static final long MIN_OVERSHOOT_DURATION = 120;
 
     public static final float MIN_PROGRESS_FOR_OVERVIEW = 0.7f;
@@ -181,9 +178,6 @@ public class LauncherSwipeHandler<T extends BaseDraggingActivity>
     private AnimatorPlaybackController mLauncherTransitionController;
     private boolean mHasLauncherTransitionControllerStarted;
 
-    private final TaskViewSimulator mTaskViewSimulator;
-    private AnimatorPlaybackController mWindowTransitionController;
-
     private AnimationFactory mAnimationFactory = (t) -> { };
 
     private boolean mWasLauncherAlreadyVisible;
@@ -204,11 +198,10 @@ public class LauncherSwipeHandler<T extends BaseDraggingActivity>
             TaskAnimationManager taskAnimationManager, GestureState gestureState,
             long touchTimeMs, boolean continuingLastGesture,
             InputConsumerController inputConsumer) {
-        super(context, deviceState, gestureState, inputConsumer);
+        super(context, deviceState, gestureState, inputConsumer, LAUNCHER_ACTIVITY_SIZE_STRATEGY);
         mTaskAnimationManager = taskAnimationManager;
         mTouchTimeMs = touchTimeMs;
         mContinuingLastGesture = continuingLastGesture;
-        mTaskViewSimulator = new TaskViewSimulator(context, LAUNCHER_ACTIVITY_SIZE_STRATEGY);
 
         initAfterSubclassConstructor();
         initStateCallbacks();
@@ -264,8 +257,6 @@ public class LauncherSwipeHandler<T extends BaseDraggingActivity>
                         | STATE_RECENTS_SCROLLING_FINISHED,
                 this::onSettledOnEndTarget);
 
-        mGestureState.runOnceAtState(STATE_TASK_APPEARED_DURING_SWITCH, this::onTaskAppeared);
-
         mStateCallback.runOnceAtState(STATE_HANDLER_INVALIDATED, this::invalidateHandler);
         mStateCallback.runOnceAtState(STATE_LAUNCHER_PRESENT | STATE_HANDLER_INVALIDATED,
                 this::invalidateHandlerWithLauncher);
@@ -282,7 +273,7 @@ public class LauncherSwipeHandler<T extends BaseDraggingActivity>
     @Override
     protected boolean onActivityInit(Boolean alreadyOnHome) {
         super.onActivityInit(alreadyOnHome);
-        final T activity = mActivityInterface.getCreatedActivity();
+        final Launcher activity = mActivityInterface.getCreatedActivity();
         if (mActivity == activity) {
             return true;
         }
@@ -304,7 +295,6 @@ public class LauncherSwipeHandler<T extends BaseDraggingActivity>
 
         mRecentsView = activity.getOverviewPanel();
         mRecentsView.setOnPageTransitionEndCallback(null);
-        linkRecentsViewScroll();
         addLiveTileOverlay();
 
         mStateCallback.setState(STATE_LAUNCHER_PRESENT);
@@ -321,6 +311,8 @@ public class LauncherSwipeHandler<T extends BaseDraggingActivity>
             // so we need to kick off switching to the overview predictions as soon as possible
             mActivityInterface.updateOverviewPredictionState();
         }
+        linkRecentsViewScroll();
+
         return true;
     }
 
@@ -330,7 +322,7 @@ public class LauncherSwipeHandler<T extends BaseDraggingActivity>
     }
 
     private void onLauncherStart() {
-        final T activity = mActivityInterface.getCreatedActivity();
+        final Launcher activity = mActivityInterface.getCreatedActivity();
         if (mActivity != activity) {
             return;
         }
@@ -343,8 +335,7 @@ public class LauncherSwipeHandler<T extends BaseDraggingActivity>
         if (mGestureState.getEndTarget() != HOME) {
             Runnable initAnimFactory = () -> {
                 mAnimationFactory = mActivityInterface.prepareRecentsUI(
-                        mWasLauncherAlreadyVisible, true,
+                        mWasLauncherAlreadyVisible, this::onAnimatorPlaybackControllerCreated);
-                        this::onAnimatorPlaybackControllerCreated);
                 maybeUpdateRecentsAttachedState(false /* animate */);
             };
             if (mWasLauncherAlreadyVisible) {
@@ -521,34 +512,6 @@ public class LauncherSwipeHandler<T extends BaseDraggingActivity>
         mAnimationFactory.createActivityInterface(mTransitionDragLength);
     }
 
-    @Override
-    protected void updateSource(Rect stackBounds, RemoteAnimationTargetCompat runningTarget) {
-        super.updateSource(stackBounds, runningTarget);
-        mTaskViewSimulator.setPreview(runningTarget, mRecentsAnimationTargets);
-    }
-
-    @Override
-    protected void initTransitionEndpoints(DeviceProfile dp) {
-        super.initTransitionEndpoints(dp);
-        mTaskViewSimulator.setDp(dp);
-        mTaskViewSimulator.setLayoutRotation(
-                mDeviceState.getCurrentActiveRotation(),
-                mDeviceState.getDisplayRotation());
-
-        AnimatorSet anim = new AnimatorSet();
-        anim.setDuration(mTransitionDragLength * 2);
-        anim.setInterpolator(t -> t * mDragLengthFactor);
-        anim.play(ObjectAnimator.ofFloat(mTaskViewSimulator.recentsViewScale,
-                AnimatedFloat.VALUE,
-                mTaskViewSimulator.getFullScreenScale(), 1));
-        anim.play(ObjectAnimator.ofFloat(mTaskViewSimulator.fullScreenProgress,
-                AnimatedFloat.VALUE,
-                BACKGROUND_APP.getOverviewFullscreenProgress(),
-                OVERVIEW.getOverviewFullscreenProgress()));
-        mWindowTransitionController =
-                AnimatorPlaybackController.wrap(anim, mTransitionDragLength * 2);
-    }
-
     /**
      * We don't want to change mLauncherTransitionController if mGestureState.getEndTarget() == HOME
      * (it has its own animation) or if we're already animating the current controller.
@@ -579,18 +542,11 @@ public class LauncherSwipeHandler<T extends BaseDraggingActivity>
 
     @Override
     public void updateFinalShift() {
-        if (mRecentsAnimationTargets != null) {
-            // Base class expects applyTransformUnchecked to be called here.
-            // TODO: Remove this dependency for swipe-up animation.
-            // applyTransformUnchecked();
-            updateSysUiFlags(mCurrentShift.value);
-        }
-
         if (ENABLE_QUICKSTEP_LIVE_TILE.get()) {
             if (mRecentsAnimationTargets != null) {
                 LiveTileOverlay.INSTANCE.update(
-                        mAppWindowAnimationHelper.getCurrentRectWithInsets(),
+                        mTaskViewSimulator.getCurrentCropRect(),
-                        mAppWindowAnimationHelper.getCurrentCornerRadius());
+                        mTaskViewSimulator.getCurrentCornerRadius());
             }
         }
 
@@ -602,16 +558,8 @@ public class LauncherSwipeHandler<T extends BaseDraggingActivity>
             }
         }
 
-        if (mWindowTransitionController != null) {
+        updateSysUiFlags(mCurrentShift.value);
-            float progress = mCurrentShift.value / mDragLengthFactor;
+        applyWindowTransform();
-            mWindowTransitionController.setPlayFraction(progress);
-            mTransformParams
-                    .setTargetSet(mRecentsAnimationTargets)
-                    .setLauncherOnTop(true);
-
-            mTaskViewSimulator.setScroll(mRecentsView == null ? 0 : mRecentsView.getScrollOffset());
-            mTaskViewSimulator.apply(mTransformParams);
-        }
         updateLauncherTransitionProgress();
     }
 
@@ -685,7 +633,7 @@ public class LauncherSwipeHandler<T extends BaseDraggingActivity>
      */
     @UiThread
     private void notifyGestureStartedAsync() {
-        final T curActivity = mActivity;
+        final Launcher curActivity = mActivity;
         if (curActivity != null) {
             // Once the gesture starts, we can no longer transition home through the button, so
             // reset the force override of the activity visibility
@@ -771,20 +719,17 @@ public class LauncherSwipeHandler<T extends BaseDraggingActivity>
         }
     }
 
-    private void onTaskAppeared() {
+    @Override
-        RemoteAnimationTargetCompat app = mGestureState.getAnimationTarget();
+    protected boolean handleTaskAppeared(RemoteAnimationTargetCompat appearedTaskTarget) {
-        if (mRecentsAnimationController != null && app != null) {
+        if (mStateCallback.hasStates(STATE_HANDLER_INVALIDATED)) {
-
+            return false;
-            // TODO(b/152480470): Update Task target animation after onTaskAppeared holistically.
-            /* android.util.Log.d("LauncherSwipeHandler", "onTaskAppeared");
-
-            final boolean result = mRecentsAnimationController.removeTaskTarget(app);
-            mGestureState.setAnimationTarget(null);
-            android.util.Log.d("LauncherSwipeHandler", "removeTask, result=" + result); */
-
-            mRecentsAnimationController.finish(false /* toRecents */,
-                    null /* onFinishComplete */);
         }
+        if (mStateCallback.hasStates(STATE_START_NEW_TASK)
+                && appearedTaskTarget.taskId == mGestureState.getLastStartedTaskId()) {
+            reset();
+            return true;
+        }
+        return false;
     }
 
     private GestureEndTarget calculateEndTarget(PointF velocity, float endVelocity, boolean isFling,
@@ -971,24 +916,61 @@ public class LauncherSwipeHandler<T extends BaseDraggingActivity>
             Interpolator interpolator, GestureEndTarget target, PointF velocityPxPerMs) {
         // Set the state, but don't notify until the animation completes
         mGestureState.setEndTarget(target, false /* isAtomic */);
-
         maybeUpdateRecentsAttachedState();
 
         if (mGestureState.getEndTarget() == HOME) {
             HomeAnimationFactory homeAnimFactory;
             if (mActivity != null) {
-                homeAnimFactory = mActivityInterface.prepareHomeUI();
+                final TaskView runningTaskView = mRecentsView.getRunningTaskView();
-            } else {
+                final View workspaceView;
-                homeAnimFactory = new HomeAnimationFactory() {
+                if (runningTaskView != null
-                    @NonNull
+                        && runningTaskView.getTask().key.getComponent() != null) {
+                    workspaceView = mActivity.getWorkspace().getFirstMatchForAppClose(
+                            runningTaskView.getTask().key.getComponent().getPackageName(),
+                            UserHandle.of(runningTaskView.getTask().key.userId));
+                } else {
+                    workspaceView = null;
+                }
+                final RectF iconLocation = new RectF();
+                boolean canUseWorkspaceView =
+                        workspaceView != null && workspaceView.isAttachedToWindow();
+                FloatingIconView floatingIconView = canUseWorkspaceView
+                        ? FloatingIconView.getFloatingIconView(mActivity, workspaceView,
+                        true /* hideOriginal */, iconLocation, false /* isOpening */)
+                        : null;
+
+                mActivity.getRootView().setForceHideBackArrow(true);
+
+                homeAnimFactory = new HomeAnimationFactory(floatingIconView) {
+
                     @Override
                     public RectF getWindowTargetRect() {
-                        RectF fallbackTarget = new RectF(mAppWindowAnimationHelper.getTargetRect());
+                        if (canUseWorkspaceView) {
-                        Utilities.scaleRectFAboutCenter(fallbackTarget, 0.25f);
+                            return iconLocation;
-                        return fallbackTarget;
+                        } else {
+                            return super.getWindowTargetRect();
+                        }
                     }
 
                     @NonNull
+                    @Override
+                    public AnimatorPlaybackController createActivityAnimationToHome() {
+                        // Return an empty APC here since we have an non-user controlled animation
+                        // to home.
+                        long accuracy = 2 * Math.max(mDp.widthPx, mDp.heightPx);
+                        return mActivity.getStateManager().createAnimationToNewWorkspace(
+                                NORMAL, accuracy, 0 /* animComponents */);
+                    }
+
+                    @Override
+                    public void playAtomicAnimation(float velocity) {
+                        new StaggeredWorkspaceAnim(mActivity, velocity,
+                                true /* animateOverviewScrim */).start();
+                    }
+                };
+
+            } else {
+                homeAnimFactory = new HomeAnimationFactory(null) {
                     @Override
                     public AnimatorPlaybackController createActivityAnimationToHome() {
                         return AnimatorPlaybackController.wrap(new AnimatorSet(), duration);
@@ -1031,12 +1013,24 @@ public class LauncherSwipeHandler<T extends BaseDraggingActivity>
                         // skip doing any future work here for the current gesture.
                         return;
                     }
-                    if (target == NEW_TASK && mRecentsView != null
+                    if (mRecentsView != null) {
-                            && mRecentsView.getNextPage() == mRecentsView.getRunningTaskIndex()) {
+                        int taskToLaunch = mRecentsView.getNextPage();
-                        // We are about to launch the current running task, so use LAST_TASK state
+                        int runningTask = getLastAppearedTaskIndex();
-                        // instead of NEW_TASK. This could happen, for example, if our scroll is
+                        boolean hasStartedNewTask = hasStartedNewTask();
-                        // aborted after we determined the target to be NEW_TASK.
+                        if (target == NEW_TASK && taskToLaunch == runningTask
-                        mGestureState.setEndTarget(LAST_TASK);
+                                && !hasStartedNewTask) {
+                            // We are about to launch the current running task, so use LAST_TASK
+                            // state instead of NEW_TASK. This could happen, for example, if our
+                            // scroll is aborted after we determined the target to be NEW_TASK.
+                            mGestureState.setEndTarget(LAST_TASK);
+                        } else if (target == LAST_TASK && hasStartedNewTask) {
+                            // We are about to re-launch the previously running task, but we can't
+                            // just finish the controller like we normally would because that would
+                            // instead resume the last task that appeared, and not ensure that this
+                            // task is restored to the top. To address this, re-launch the task as
+                            // if it were a new task.
+                            mGestureState.setEndTarget(NEW_TASK);
+                        }
                     }
                     mGestureState.setState(STATE_END_TARGET_ANIMATION_FINISHED);
                 }
@@ -1160,8 +1154,9 @@ public class LauncherSwipeHandler<T extends BaseDraggingActivity>
 
     @UiThread
     private void startNewTaskInternal() {
-        startNewTask(STATE_HANDLER_INVALIDATED, success -> {
+        startNewTask(success -> {
             if (!success) {
+                reset();
                 // We couldn't launch the task, so take user to overview so they can
                 // decide what to do instead of staying in this broken state.
                 endLauncherTransitionController();
@@ -1171,6 +1166,12 @@ public class LauncherSwipeHandler<T extends BaseDraggingActivity>
         });
     }
 
+    @Override
+    protected void onRestartLastAppearedTask() {
+        super.onRestartLastAppearedTask();
+        reset();
+    }
+
     private void reset() {
         mStateCallback.setStateOnUiThread(STATE_HANDLER_INVALIDATED);
     }
@@ -1186,19 +1187,6 @@ public class LauncherSwipeHandler<T extends BaseDraggingActivity>
                 .getAnimationPlayer().isStarted()) {
             mLauncherTransitionController.getAnimationPlayer().cancel();
         }
-
-        if (mFinishingRecentsAnimationForNewTaskId != -1) {
-            // If we are canceling mid-starting a new task, switch to the screenshot since the
-            // recents animation has finished
-            switchToScreenshot();
-            TaskView newRunningTaskView = mRecentsView.getTaskView(
-                    mFinishingRecentsAnimationForNewTaskId);
-            int newRunningTaskId = newRunningTaskView != null
-                    ? newRunningTaskView.getTask().key.id
-                    : -1;
-            mRecentsView.setCurrentTask(newRunningTaskId);
-            mGestureState.setFinishingRecentsAnimationTaskId(newRunningTaskId);
-        }
     }
 
     private void invalidateHandler() {
@@ -1337,8 +1325,7 @@ public class LauncherSwipeHandler<T extends BaseDraggingActivity>
     }
 
     private void setTargetAlphaProvider(TargetAlphaProvider provider) {
-        mAppWindowAnimationHelper.setTaskAlphaCallback(provider);
+        mTransformParams.setTaskAlphaCallback(provider);
-        mTaskViewSimulator.setTaskAlphaCallback(provider);
         updateFinalShift();
     }
 

quickstep/recents_ui_overrides/src/com/android/quickstep/RecentsActivity.java

@@ -15,6 +15,9 @@
  */
 package com.android.quickstep;
 
+import static android.content.pm.ActivityInfo.CONFIG_ORIENTATION;
+import static android.content.pm.ActivityInfo.CONFIG_SCREEN_SIZE;
+
 import static com.android.launcher3.QuickstepAppTransitionManagerImpl.RECENTS_LAUNCH_DURATION;
 import static com.android.launcher3.QuickstepAppTransitionManagerImpl.STATUS_BAR_TRANSITION_DURATION;
 import static com.android.launcher3.QuickstepAppTransitionManagerImpl.STATUS_BAR_TRANSITION_PRE_DELAY;
@@ -29,21 +32,32 @@ import android.animation.AnimatorSet;
 import android.app.ActivityOptions;
 import android.content.Intent;
 import android.content.res.Configuration;
+import android.os.Bundle;
 import android.os.Handler;
 import android.os.IBinder;
 import android.os.Looper;
 import android.view.View;
 
+import com.android.launcher3.AbstractFloatingView;
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.InvariantDeviceProfile;
 import com.android.launcher3.LauncherAnimationRunner;
 import com.android.launcher3.R;
 import com.android.launcher3.anim.Interpolators;
 import com.android.launcher3.compat.AccessibilityManagerCompat;
+import com.android.launcher3.statemanager.StateManager;
+import com.android.launcher3.statemanager.StateManager.StateHandler;
+import com.android.launcher3.statemanager.StatefulActivity;
+import com.android.launcher3.util.ActivityTracker;
 import com.android.launcher3.util.ObjectWrapper;
+import com.android.launcher3.util.SystemUiController;
+import com.android.launcher3.util.Themes;
 import com.android.launcher3.views.BaseDragLayer;
+import com.android.quickstep.fallback.FallbackRecentsStateController;
 import com.android.quickstep.fallback.FallbackRecentsView;
 import com.android.quickstep.fallback.RecentsRootView;
+import com.android.quickstep.fallback.RecentsState;
+import com.android.quickstep.views.OverviewActionsView;
 import com.android.quickstep.views.TaskView;
 import com.android.systemui.shared.recents.model.ThumbnailData;
 import com.android.systemui.shared.system.ActivityOptionsCompat;
@@ -51,26 +65,40 @@ import com.android.systemui.shared.system.RemoteAnimationAdapterCompat;
 import com.android.systemui.shared.system.RemoteAnimationRunnerCompat;
 import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
 
+import java.io.FileDescriptor;
+import java.io.PrintWriter;
+
 /**
  * A recents activity that shows the recently launched tasks as swipable task cards.
  * See {@link com.android.quickstep.views.RecentsView}.
  */
-public final class RecentsActivity extends BaseRecentsActivity {
+public final class RecentsActivity extends StatefulActivity<RecentsState> {
 
     public static final String EXTRA_THUMBNAIL = "thumbnailData";
     public static final String EXTRA_TASK_ID = "taskID";
+    public static final ActivityTracker<RecentsActivity> ACTIVITY_TRACKER =
+            new ActivityTracker<>();
 
     private Handler mUiHandler = new Handler(Looper.getMainLooper());
     private RecentsRootView mRecentsRootView;
     private FallbackRecentsView mFallbackRecentsView;
+    private OverviewActionsView mActionsView;
 
-    @Override
+    private Configuration mOldConfig;
+
+    private StateManager<RecentsState> mStateManager;
+
+    /**
+     * Init drag layer and overview panel views.
+     */
     protected void initViews() {
         setContentView(R.layout.fallback_recents_activity);
         mRecentsRootView = findViewById(R.id.drag_layer);
         mFallbackRecentsView = findViewById(R.id.overview_panel);
+        mActionsView = findViewById(R.id.overview_actions_view);
+
         mRecentsRootView.recreateControllers();
-        mFallbackRecentsView.init(findViewById(R.id.overview_actions_view));
+        mFallbackRecentsView.init(mActionsView);
     }
 
     @Override
@@ -103,25 +131,38 @@ public final class RecentsActivity extends BaseRecentsActivity {
         intent.removeExtra(EXTRA_TASK_ID);
         intent.removeExtra(EXTRA_THUMBNAIL);
         super.onNewIntent(intent);
+        ACTIVITY_TRACKER.handleNewIntent(this, intent);
     }
 
-    @Override
+    /**
+         * Logic for when device configuration changes (rotation, screen size change, multi-window,
+         * etc.)
+         */
     protected void onHandleConfigChanged() {
-        super.onHandleConfigChanged();
+        mUserEventDispatcher = null;
+        initDeviceProfile();
+
+        AbstractFloatingView.closeOpenViews(this, true,
+                AbstractFloatingView.TYPE_ALL & ~AbstractFloatingView.TYPE_REBIND_SAFE);
+        dispatchDeviceProfileChanged();
+
+        reapplyUi();
         mRecentsRootView.recreateControllers();
     }
 
-    @Override
+    /**
-    protected void reapplyUi() {
+     * Generate the device profile to use in this activity.
-        mRecentsRootView.dispatchInsets();
+     * @return device profile
-    }
+     */
-
-    @Override
     protected DeviceProfile createDeviceProfile() {
         DeviceProfile dp = InvariantDeviceProfile.INSTANCE.get(this).getDeviceProfile(this);
+        DeviceProfile dp1 = InvariantDeviceProfile.INSTANCE.get(this).getDeviceProfile(this);
+
+        // In case we are reusing IDP, create a copy so that we don't conflict with Launcher
+        // activity.
         return (mRecentsRootView != null) && isInMultiWindowMode()
                 ? dp.getMultiWindowProfile(this, getMultiWindowDisplaySize())
-                : super.createDeviceProfile();
+                : dp1.copy(this);
     }
 
     @Override
@@ -139,6 +180,10 @@ public final class RecentsActivity extends BaseRecentsActivity {
         return (T) mFallbackRecentsView;
     }
 
+    public OverviewActionsView getActionsView() {
+        return mActionsView;
+    }
+
     @Override
     public void returnToHomescreen() {
         super.returnToHomescreen();
@@ -160,12 +205,7 @@ public final class RecentsActivity extends BaseRecentsActivity {
                     RemoteAnimationTargetCompat[] wallpaperTargets, AnimationResult result) {
                 AnimatorSet anim = composeRecentsLaunchAnimator(taskView, appTargets,
                         wallpaperTargets);
-                anim.addListener(new AnimatorListenerAdapter() {
+                anim.addListener(resetStateListener());
-                    @Override
-                    public void onAnimationEnd(Animator animation) {
-                        mFallbackRecentsView.resetViewUI();
-                    }
-                });
                 result.setAnimation(anim, RecentsActivity.this);
             }
         };
@@ -193,12 +233,7 @@ public final class RecentsActivity extends BaseRecentsActivity {
                     .createAdjacentPageAnimForTaskLaunch(taskView);
             adjacentAnimation.setInterpolator(Interpolators.TOUCH_RESPONSE_INTERPOLATOR);
             adjacentAnimation.setDuration(RECENTS_LAUNCH_DURATION);
-            adjacentAnimation.addListener(new AnimatorListenerAdapter() {
+            adjacentAnimation.addListener(resetStateListener());
-                @Override
-                public void onAnimationEnd(Animator animation) {
-                    mFallbackRecentsView.resetTaskVisuals();
-                }
-            });
             target.play(adjacentAnimation);
         }
         return target;
@@ -210,13 +245,14 @@ public final class RecentsActivity extends BaseRecentsActivity {
         // onActivityStart callback.
         mFallbackRecentsView.setContentAlpha(1);
         super.onStart();
-        mFallbackRecentsView.resetTaskVisuals();
     }
 
     @Override
     protected void onStop() {
         super.onStop();
-        mFallbackRecentsView.reset();
+
+        // Workaround for b/78520668, explicitly trim memory once UI is hidden
+        onTrimMemory(TRIM_MEMORY_UI_HIDDEN);
     }
 
     @Override
@@ -228,4 +264,98 @@ public final class RecentsActivity extends BaseRecentsActivity {
     public void onTaskLaunched() {
         mFallbackRecentsView.resetTaskVisuals();
     }
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        mStateManager = new StateManager<>(this, RecentsState.DEFAULT);
+
+        mOldConfig = new Configuration(getResources().getConfiguration());
+        initDeviceProfile();
+        initViews();
+
+        getSystemUiController().updateUiState(SystemUiController.UI_STATE_BASE_WINDOW,
+                Themes.getAttrBoolean(this, R.attr.isWorkspaceDarkText));
+        ACTIVITY_TRACKER.handleCreate(this);
+    }
+
+    @Override
+    public void onConfigurationChanged(Configuration newConfig) {
+        int diff = newConfig.diff(mOldConfig);
+        if ((diff & (CONFIG_ORIENTATION | CONFIG_SCREEN_SIZE)) != 0) {
+            onHandleConfigChanged();
+        }
+        mOldConfig.setTo(newConfig);
+        super.onConfigurationChanged(newConfig);
+    }
+
+    /**
+     * Initialize/update the device profile.
+     */
+    private void initDeviceProfile() {
+        mDeviceProfile = createDeviceProfile();
+        onDeviceProfileInitiated();
+    }
+
+    @Override
+    public void onEnterAnimationComplete() {
+        super.onEnterAnimationComplete();
+        // After the transition to home, enable the high-res thumbnail loader if it wasn't enabled
+        // as a part of quickstep, so that high-res thumbnails can load the next time we enter
+        // overview
+        RecentsModel.INSTANCE.get(this).getThumbnailCache()
+                .getHighResLoadingState().setVisible(true);
+    }
+
+    @Override
+    public void onTrimMemory(int level) {
+        super.onTrimMemory(level);
+        RecentsModel.INSTANCE.get(this).onTrimMemory(level);
+    }
+
+    @Override
+    protected void onDestroy() {
+        super.onDestroy();
+        ACTIVITY_TRACKER.onActivityDestroyed(this);
+    }
+
+    @Override
+    public void onBackPressed() {
+        // TODO: Launch the task we came from
+        startHome();
+    }
+
+    public void startHome() {
+        startActivity(new Intent(Intent.ACTION_MAIN)
+                .addCategory(Intent.CATEGORY_HOME)
+                .setFlags(Intent.FLAG_ACTIVITY_NEW_TASK));
+    }
+
+    @Override
+    protected StateHandler<RecentsState>[] createStateHandlers() {
+        return new StateHandler[] { new FallbackRecentsStateController(this) };
+    }
+
+    @Override
+    public StateManager<RecentsState> getStateManager() {
+        return mStateManager;
+    }
+
+    @Override
+    public void dump(String prefix, FileDescriptor fd, PrintWriter writer, String[] args) {
+        super.dump(prefix, fd, writer, args);
+        writer.println(prefix + "Misc:");
+        dumpMisc(prefix + "\t", writer);
+    }
+
+    private AnimatorListenerAdapter resetStateListener() {
+        return new AnimatorListenerAdapter() {
+            @Override
+            public void onAnimationEnd(Animator animation) {
+                mFallbackRecentsView.resetTaskVisuals();
+                mStateManager.reapplyState();
+            }
+        };
+    }
 }

quickstep/recents_ui_overrides/src/com/android/quickstep/TaskOverlayFactory.java

@@ -22,6 +22,7 @@ import android.content.Context;
 import android.graphics.Insets;
 import android.graphics.Matrix;
 import android.graphics.Rect;
+import android.widget.Toast;
 
 import com.android.launcher3.BaseActivity;
 import com.android.launcher3.BaseDraggingActivity;
@@ -109,16 +110,26 @@ public class TaskOverlayFactory implements ResourceBasedOverride {
         public void initOverlay(Task task, ThumbnailData thumbnail, Matrix matrix) {
             ImageActionsApi imageApi = new ImageActionsApi(
                     mApplicationContext, mThumbnailView::getThumbnail);
+            final boolean isAllowedByPolicy = thumbnail.isRealSnapshot;
+
             getActionsView().setCallbacks(new OverlayUICallbacks() {
                 @Override
                 public void onShare() {
-                    imageApi.startShareActivity();
+                    if (isAllowedByPolicy) {
+                        imageApi.startShareActivity();
+                    } else {
+                        showBlockedByPolicyMessage();
+                    }
                 }
 
                 @Override
                 public void onScreenshot() {
-                    imageApi.saveScreenshot(mThumbnailView.getThumbnail(),
+                    if (isAllowedByPolicy) {
-                            getTaskSnapshotBounds(), getTaskSnapshotInsets(), task.key.id);
+                        imageApi.saveScreenshot(mThumbnailView.getThumbnail(),
+                                getTaskSnapshotBounds(), getTaskSnapshotInsets(), task.key.id);
+                    } else {
+                        showBlockedByPolicyMessage();
+                    }
                 }
             });
         }
@@ -152,6 +163,13 @@ public class TaskOverlayFactory implements ResourceBasedOverride {
             // TODO: return the real insets
             return Insets.of(0, 0, 0, 0);
         }
+
+        private void showBlockedByPolicyMessage() {
+            Toast.makeText(
+                    mThumbnailView.getContext(),
+                    R.string.blocked_by_policy,
+                    Toast.LENGTH_LONG).show();
+        }
     }
 
     /**

quickstep/recents_ui_overrides/src/com/android/quickstep/TaskViewUtils.java

@@ -38,6 +38,7 @@ import com.android.launcher3.model.data.ItemInfo;
 import com.android.launcher3.statehandlers.DepthController;
 import com.android.quickstep.util.AppWindowAnimationHelper;
 import com.android.quickstep.util.MultiValueUpdateListener;
+import com.android.quickstep.util.TransformParams;
 import com.android.quickstep.views.RecentsView;
 import com.android.quickstep.views.TaskView;
 import com.android.systemui.shared.recents.model.Task;
@@ -132,11 +133,10 @@ public final class TaskViewUtils {
         final RemoteAnimationTargets targets =
                 new RemoteAnimationTargets(appTargets, wallpaperTargets, MODE_OPENING);
         targets.addDependentTransactionApplier(applier);
-        AppWindowAnimationHelper.TransformParams params =
+        TransformParams params =
-                new AppWindowAnimationHelper.TransformParams()
+                new TransformParams()
                     .setSyncTransactionApplier(applier)
-                    .setTargetSet(targets)
+                    .setTargetSet(targets);
-                    .setLauncherOnTop(true);
 
         AnimatorSet animatorSet = new AnimatorSet();
         final RecentsView recentsView = v.getRecentsView();
@@ -150,7 +150,7 @@ public final class TaskViewUtils {
             final RectF mThumbnailRect;
 
             {
-                inOutHelper.setTaskAlphaCallback((t, alpha) -> mTaskAlpha.value);
+                params.setTaskAlphaCallback((t, alpha) -> mTaskAlpha.value);
                 inOutHelper.prepareAnimation(
                         BaseActivity.fromContext(v.getContext()).getDeviceProfile());
                 inOutHelper.fromTaskThumbnailView(v.getThumbnail(), (RecentsView) v.getParent(),
@@ -175,7 +175,7 @@ public final class TaskViewUtils {
                             v.getRecentsView().getClipAnimationHelper();
                     if (liveTileAnimationHelper != null) {
                         // Append the surface transform params for the live tile app.
-                        AppWindowAnimationHelper.TransformParams liveTileParams =
+                        TransformParams liveTileParams =
                                 v.getRecentsView().getLiveTileParams(true /* mightNeedToRefill */);
                         if (liveTileParams != null) {
                             SurfaceParams[] liveTileSurfaceParams =
@@ -186,7 +186,7 @@ public final class TaskViewUtils {
                         }
                     }
                     // Apply surface transform using the surface params list.
-                    AppWindowAnimationHelper.applySurfaceParams(params.getSyncTransactionApplier(),
+                    params.applySurfaceParams(
                             surfaceParamsList.toArray(new SurfaceParams[surfaceParamsList.size()]));
                     // Get the task bounds for the app that's being opened after surface transform
                     // update.

quickstep/recents_ui_overrides/src/com/android/quickstep/TouchInteractionService.java

@@ -30,8 +30,6 @@ import static com.android.systemui.shared.system.QuickStepContract.KEY_EXTRA_SYS
 import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_TRACING_ENABLED;
 
 import android.annotation.TargetApi;
-import android.app.ActivityManager;
-import android.app.ActivityManager.RunningTaskInfo;
 import android.app.PendingIntent;
 import android.app.RemoteAction;
 import android.app.Service;
@@ -40,6 +38,7 @@ import android.content.Context;
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.content.res.Configuration;
+import android.graphics.Rect;
 import android.graphics.Region;
 import android.graphics.drawable.Icon;
 import android.os.Build;
@@ -71,6 +70,7 @@ import com.android.launcher3.tracing.nano.TouchInteractionServiceProto;
 import com.android.launcher3.uioverrides.plugins.PluginManagerWrapper;
 import com.android.launcher3.util.OnboardingPrefs;
 import com.android.launcher3.util.TraceHelper;
+import com.android.launcher3.util.WindowBounds;
 import com.android.quickstep.inputconsumers.AccessibilityInputConsumer;
 import com.android.quickstep.inputconsumers.AssistantInputConsumer;
 import com.android.quickstep.inputconsumers.DeviceLockedInputConsumer;
@@ -83,6 +83,7 @@ import com.android.quickstep.inputconsumers.ScreenPinnedInputConsumer;
 import com.android.quickstep.util.ActiveGestureLog;
 import com.android.quickstep.util.AssistantUtilities;
 import com.android.quickstep.util.ProtoTracer;
+import com.android.quickstep.util.SplitScreenBounds;
 import com.android.quickstep.views.RecentsView;
 import com.android.systemui.plugins.OverscrollPlugin;
 import com.android.systemui.plugins.PluginListener;
@@ -120,7 +121,7 @@ class ArgList extends LinkedList<String> {
 /**
  * Service connected by system-UI for handling touch interaction.
  */
-@TargetApi(Build.VERSION_CODES.Q)
+@TargetApi(Build.VERSION_CODES.R)
 public class TouchInteractionService extends Service implements PluginListener<OverscrollPlugin>,
         ProtoTraceable<LauncherTraceProto> {
 
@@ -231,6 +232,11 @@ public class TouchInteractionService extends Service implements PluginListener<O
             MAIN_EXECUTOR.execute(() -> mDeviceState.setDeferredGestureRegion(region));
         }
 
+        public void onSplitScreenSecondaryBoundsChanged(Rect bounds, Rect insets)  {
+            WindowBounds wb = new WindowBounds(bounds, insets);
+            MAIN_EXECUTOR.execute(() -> SplitScreenBounds.INSTANCE.setSecondaryWindowBounds(wb));
+        }
+
         /** Deprecated methods **/
         public void onQuickStep(MotionEvent motionEvent) { }
 
@@ -518,8 +524,13 @@ public class TouchInteractionService extends Service implements PluginListener<O
     private GestureState createGestureState() {
         GestureState gestureState = new GestureState(mOverviewComponentObserver,
                 ActiveGestureLog.INSTANCE.generateAndSetLogId());
-        gestureState.updateRunningTask(TraceHelper.whitelistIpcs("getRunningTask.0",
+        if (mTaskAnimationManager.isRecentsAnimationRunning()) {
-                () -> mAM.getRunningTask(false /* filterOnlyVisibleRecents */)));
+            gestureState.updateRunningTask(mGestureState.getRunningTask());
+            gestureState.updateLastStartedTaskId(mGestureState.getLastStartedTaskId());
+        } else {
+            gestureState.updateRunningTask(TraceHelper.whitelistIpcs("getRunningTask.0",
+                    () -> mAM.getRunningTask(false /* filterOnlyVisibleRecents */)));
+        }
         return gestureState;
     }
 
@@ -599,15 +610,24 @@ public class TouchInteractionService extends Service implements PluginListener<O
     }
 
     private void handleOrientationSetup(InputConsumer baseInputConsumer) {
+        if (TestProtocol.sDebugTracing) {
+            Log.d(TestProtocol.PAUSE_NOT_DETECTED, "handleOrientationSetup.1");
+        }
         if (!isFixedRotationTransformEnabled(this)) {
             return;
         }
         mDeviceState.enableMultipleRegions(baseInputConsumer instanceof OtherActivityInputConsumer);
         BaseDraggingActivity activity =
                 mOverviewComponentObserver.getActivityInterface().getCreatedActivity();
+        if (TestProtocol.sDebugTracing) {
+            Log.d(TestProtocol.PAUSE_NOT_DETECTED, "handleOrientationSetup.2");
+        }
         if (activity == null || !(activity.getOverviewPanel() instanceof RecentsView)) {
             return;
         }
+        if (TestProtocol.sDebugTracing) {
+            Log.d(TestProtocol.PAUSE_NOT_DETECTED, "handleOrientationSetup.3");
+        }
         ((RecentsView) activity.getOverviewPanel())
             .setLayoutRotation(mDeviceState.getCurrentActiveRotation(),
                 mDeviceState.getDisplayRotation());
@@ -637,14 +657,7 @@ public class TouchInteractionService extends Service implements PluginListener<O
                     runningComponent != null && runningComponent.equals(homeComponent);
         }
 
-        if (previousGestureState.getFinishingRecentsAnimationTaskId() > 0) {
+        if (gestureState.getRunningTask() == null) {
-            // If the finish animation was interrupted, then continue using the other activity input
-            // consumer but with the next task as the running task
-            RunningTaskInfo info = new ActivityManager.RunningTaskInfo();
-            info.id = previousGestureState.getFinishingRecentsAnimationTaskId();
-            gestureState.updateRunningTask(info);
-            return createOtherActivityInputConsumer(previousGestureState, gestureState, event);
-        } else if (gestureState.getRunningTask() == null) {
             return mResetGestureInputConsumer;
         } else if (previousGestureState.isRunningAnimationToLauncher()
                 || gestureState.getActivityInterface().isResumed()
@@ -658,25 +671,22 @@ public class TouchInteractionService extends Service implements PluginListener<O
         } else if (mDeviceState.isGestureBlockedActivity(gestureState.getRunningTask())) {
             return mResetGestureInputConsumer;
         } else {
-            return createOtherActivityInputConsumer(previousGestureState, gestureState, event);
+            return createOtherActivityInputConsumer(gestureState, event);
         }
     }
 
-    private InputConsumer createOtherActivityInputConsumer(GestureState previousGestureState,
+    private InputConsumer createOtherActivityInputConsumer(GestureState gestureState,
-            GestureState gestureState, MotionEvent event) {
+            MotionEvent event) {
 
-        final boolean shouldDefer;
         final BaseSwipeUpHandler.Factory factory;
-
         if (!mOverviewComponentObserver.isHomeAndOverviewSame()) {
-            shouldDefer = previousGestureState.getFinishingRecentsAnimationTaskId() < 0;
             factory = mFallbackSwipeHandlerFactory;
         } else {
-            shouldDefer = gestureState.getActivityInterface().deferStartingActivity(mDeviceState,
-                    event);
             factory = mLauncherSwipeHandlerFactory;
         }
 
+        final boolean shouldDefer = !mOverviewComponentObserver.isHomeAndOverviewSame()
+                || gestureState.getActivityInterface().deferStartingActivity(mDeviceState, event);
         final boolean disableHorizontalSwipe = mDeviceState.isInExclusionRegion(event);
         return new OtherActivityInputConsumer(this, mDeviceState, mTaskAnimationManager,
                 gestureState, shouldDefer, this::onConsumerInactive,

quickstep/recents_ui_overrides/src/com/android/quickstep/fallback/FallbackRecentsStateController.java

@@ -0,0 +1,94 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.quickstep.fallback;
+
+import static com.android.launcher3.LauncherAnimUtils.SCALE_PROPERTY;
+import static com.android.launcher3.anim.Interpolators.LINEAR;
+import static com.android.launcher3.states.StateAnimationConfig.ANIM_OVERVIEW_MODAL;
+import static com.android.launcher3.states.StateAnimationConfig.ANIM_OVERVIEW_SCALE;
+import static com.android.launcher3.states.StateAnimationConfig.ANIM_OVERVIEW_TRANSLATE_X;
+import static com.android.launcher3.states.StateAnimationConfig.PLAY_ATOMIC_OVERVIEW_PEEK;
+import static com.android.launcher3.states.StateAnimationConfig.PLAY_ATOMIC_OVERVIEW_SCALE;
+import static com.android.launcher3.states.StateAnimationConfig.SKIP_OVERVIEW;
+import static com.android.quickstep.views.RecentsView.ADJACENT_PAGE_OFFSET;
+import static com.android.quickstep.views.RecentsView.FULLSCREEN_PROGRESS;
+import static com.android.quickstep.views.RecentsView.TASK_MODALNESS;
+
+import com.android.launcher3.anim.PendingAnimation;
+import com.android.launcher3.anim.PropertySetter;
+import com.android.launcher3.statemanager.StateManager.StateHandler;
+import com.android.launcher3.states.StateAnimationConfig;
+import com.android.launcher3.util.MultiValueAlpha;
+import com.android.quickstep.RecentsActivity;
+import com.android.quickstep.views.ClearAllButton;
+
+/**
+ * State controller for fallback recents activity
+ */
+public class FallbackRecentsStateController implements StateHandler<RecentsState> {
+
+    private final StateAnimationConfig mNoConfig = new StateAnimationConfig();
+    private final RecentsActivity mActivity;
+    private final FallbackRecentsView mRecentsView;
+
+    public FallbackRecentsStateController(RecentsActivity activity) {
+        mActivity = activity;
+        mRecentsView = activity.getOverviewPanel();
+    }
+
+    @Override
+    public void setState(RecentsState state) {
+        mRecentsView.updateEmptyMessage();
+        mRecentsView.resetTaskVisuals();
+        setProperties(state, mNoConfig, PropertySetter.NO_ANIM_PROPERTY_SETTER);
+    }
+
+    @Override
+    public void setStateWithAnimation(RecentsState toState, StateAnimationConfig config,
+            PendingAnimation setter) {
+        if (!config.hasAnimationFlag(PLAY_ATOMIC_OVERVIEW_PEEK | PLAY_ATOMIC_OVERVIEW_SCALE)) {
+            // The entire recents animation is played atomically.
+            return;
+        }
+        if (config.hasAnimationFlag(SKIP_OVERVIEW)) {
+            return;
+        }
+        // While animating into recents, update the visible task data as needed
+        setter.addOnFrameCallback(mRecentsView::loadVisibleTaskData);
+        mRecentsView.updateEmptyMessage();
+
+        setProperties(toState, config, setter);
+    }
+
+    private void setProperties(RecentsState state, StateAnimationConfig config,
+            PropertySetter setter) {
+        float buttonAlpha = state.hasButtons() ? 1 : 0;
+        setter.setFloat(mRecentsView.getClearAllButton(), ClearAllButton.VISIBILITY_ALPHA,
+                buttonAlpha, LINEAR);
+        setter.setFloat(mActivity.getActionsView().getVisibilityAlpha(),
+                MultiValueAlpha.VALUE, buttonAlpha, LINEAR);
+
+        float[] scaleAndOffset = state.getOverviewScaleAndOffset(mActivity);
+        setter.setFloat(mRecentsView, SCALE_PROPERTY, scaleAndOffset[0],
+                config.getInterpolator(ANIM_OVERVIEW_SCALE, LINEAR));
+        setter.setFloat(mRecentsView, ADJACENT_PAGE_OFFSET, scaleAndOffset[1],
+                config.getInterpolator(ANIM_OVERVIEW_TRANSLATE_X, LINEAR));
+
+        setter.setFloat(mRecentsView, TASK_MODALNESS, state.getOverviewModalness(),
+                config.getInterpolator(ANIM_OVERVIEW_MODAL, LINEAR));
+        setter.setFloat(mRecentsView, FULLSCREEN_PROGRESS, state.isFullScreen() ? 1 : 0, LINEAR);
+    }
+}

quickstep/recents_ui_overrides/src/com/android/quickstep/fallback/FallbackRecentsView.java

@@ -15,17 +15,17 @@
  */
 package com.android.quickstep.fallback;
 
-import static com.android.launcher3.LauncherAnimUtils.SCALE_PROPERTY;
+import static com.android.quickstep.fallback.RecentsState.DEFAULT;
+import static com.android.quickstep.fallback.RecentsState.MODAL_TASK;
 import static com.android.quickstep.util.WindowSizeStrategy.FALLBACK_RECENTS_SIZE_STRATEGY;
 
+import android.annotation.TargetApi;
 import android.app.ActivityManager.RunningTaskInfo;
 import android.content.Context;
-import android.graphics.Canvas;
+import android.os.Build;
 import android.util.AttributeSet;
-import android.util.FloatProperty;
-import android.view.View;
 
-import com.android.launcher3.Utilities;
+import com.android.launcher3.statemanager.StateManager.StateListener;
 import com.android.quickstep.RecentsActivity;
 import com.android.quickstep.views.OverviewActionsView;
 import com.android.quickstep.views.RecentsView;
@@ -34,26 +34,9 @@ import com.android.systemui.shared.recents.model.Task.TaskKey;
 
 import java.util.ArrayList;
 
-public class FallbackRecentsView extends RecentsView<RecentsActivity> {
+@TargetApi(Build.VERSION_CODES.R)
-
+public class FallbackRecentsView extends RecentsView<RecentsActivity>
-    public static final FloatProperty<FallbackRecentsView> ZOOM_PROGRESS =
+        implements StateListener<RecentsState> {
-            new FloatProperty<FallbackRecentsView> ("zoomInProgress") {
-
-                @Override
-                public void setValue(FallbackRecentsView view, float value) {
-                    view.setZoomProgress(value);
-                }
-
-                @Override
-                public Float get(FallbackRecentsView view) {
-                    return view.mZoomInProgress;
-                }
-            };
-
-    private float mZoomInProgress = 0;
-    private boolean mInOverviewState = true;
-
-    private float mZoomScale = 1f;
 
     private RunningTaskInfo mRunningTaskInfo;
 
@@ -63,6 +46,7 @@ public class FallbackRecentsView extends RecentsView<RecentsActivity> {
 
     public FallbackRecentsView(Context context, AttributeSet attrs, int defStyleAttr) {
         super(context, attrs, defStyleAttr, FALLBACK_RECENTS_SIZE_STRATEGY);
+        mActivity.getStateManager().addStateListener(this);
     }
 
     @Override
@@ -77,71 +61,12 @@ public class FallbackRecentsView extends RecentsView<RecentsActivity> {
         mActivity.startHome();
     }
 
-    @Override
-    public void onViewAdded(View child) {
-        super.onViewAdded(child);
-        updateEmptyMessage();
-    }
-
-    @Override
-    public void onViewRemoved(View child) {
-        super.onViewRemoved(child);
-        updateEmptyMessage();
-    }
-
-    @Override
-    public void draw(Canvas canvas) {
-        maybeDrawEmptyMessage(canvas);
-        super.draw(canvas);
-    }
-
-    @Override
-    public void reset() {
-        super.reset();
-        resetViewUI();
-    }
-
     @Override
     public boolean shouldUseMultiWindowTaskSizeStrategy() {
         // Just use the activity task size for multi-window as well.
         return false;
     }
 
-    public void resetViewUI() {
-        setZoomProgress(0);
-        resetTaskVisuals();
-    }
-
-    public void setInOverviewState(boolean inOverviewState) {
-        if (mInOverviewState != inOverviewState) {
-            mInOverviewState = inOverviewState;
-            if (mInOverviewState) {
-                resetTaskVisuals();
-            } else {
-                setZoomProgress(1);
-            }
-        }
-    }
-
-    @Override
-    public void resetTaskVisuals() {
-        super.resetTaskVisuals();
-        setFullscreenProgress(mFullscreenProgress);
-    }
-
-    @Override
-    protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
-        super.onLayout(changed, left, top, right, bottom);
-        mZoomScale = getMaxScaleForFullScreen();
-        setZoomProgress(mZoomInProgress);
-    }
-
-    public void setZoomProgress(float progress) {
-        mZoomInProgress = progress;
-        SCALE_PROPERTY.set(this, Utilities.mapRange(mZoomInProgress, 1, mZoomScale));
-        FULLSCREEN_PROGRESS.set(this, mZoomInProgress);
-    }
-
     public void onGestureAnimationStart(RunningTaskInfo runningTaskInfo) {
         mRunningTaskInfo = runningTaskInfo;
         onGestureAnimationStart(runningTaskInfo == null ? -1 : runningTaskInfo.taskId);
@@ -178,4 +103,37 @@ public class FallbackRecentsView extends RecentsView<RecentsActivity> {
         }
         super.applyLoadPlan(tasks);
     }
+
+    @Override
+    public void setModalStateEnabled(boolean isModalState) {
+        super.setModalStateEnabled(isModalState);
+        if (isModalState) {
+            mActivity.getStateManager().goToState(RecentsState.MODAL_TASK);
+        } else {
+            if (mActivity.isInState(RecentsState.MODAL_TASK)) {
+                mActivity.getStateManager().goToState(DEFAULT);
+            }
+        }
+    }
+
+    @Override
+    public void onStateTransitionStart(RecentsState toState) {
+        setOverviewStateEnabled(true);
+        setFreezeViewVisibility(true);
+    }
+
+    @Override
+    public void onStateTransitionComplete(RecentsState finalState) {
+        setOverlayEnabled(finalState == DEFAULT || finalState == MODAL_TASK);
+        setFreezeViewVisibility(false);
+    }
+
+    @Override
+    public void setOverviewStateEnabled(boolean enabled) {
+        super.setOverviewStateEnabled(enabled);
+        if (enabled) {
+            RecentsState state = mActivity.getStateManager().getState();
+            setDisallowScrollToClearAll(!state.hasButtons());
+        }
+    }
 }

quickstep/recents_ui_overrides/src/com/android/quickstep/fallback/RecentsState.java

@@ -0,0 +1,116 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.quickstep.fallback;
+
+import static com.android.launcher3.uioverrides.states.BackgroundAppState.getOverviewScaleAndOffsetForBackgroundState;
+import static com.android.launcher3.uioverrides.states.OverviewModalTaskState.getOverviewScaleAndOffsetForModalState;
+
+import android.content.Context;
+
+import com.android.launcher3.statemanager.BaseState;
+import com.android.quickstep.RecentsActivity;
+
+/**
+ * State definition for Fallback recents
+ */
+public class RecentsState implements BaseState<RecentsState> {
+
+    private static final int FLAG_MODAL = BaseState.getFlag(0);
+    private static final int FLAG_HAS_BUTTONS = BaseState.getFlag(1);
+    private static final int FLAG_FULL_SCREEN = BaseState.getFlag(2);
+
+    public static final RecentsState DEFAULT = new RecentsState(0, FLAG_HAS_BUTTONS);
+    public static final RecentsState MODAL_TASK = new ModalState(1,
+            FLAG_DISABLE_RESTORE | FLAG_HAS_BUTTONS | FLAG_MODAL);
+    public static final RecentsState BACKGROUND_APP = new BackgroundAppState(2,
+            FLAG_DISABLE_RESTORE | FLAG_NON_INTERACTIVE | FLAG_FULL_SCREEN);
+
+    public final int ordinal;
+    private final int mFlags;
+
+    private static final float NO_OFFSET = 0;
+    private static final float NO_SCALE = 1;
+
+    public RecentsState(int id, int flags) {
+        this.ordinal = id;
+        this.mFlags = flags;
+    }
+
+
+    @Override
+    public String toString() {
+        return "Ordinal-" + ordinal;
+    }
+
+    @Override
+    public final boolean hasFlag(int mask) {
+        return (mFlags & mask) != 0;
+    }
+
+    @Override
+    public int getTransitionDuration(Context context) {
+        return 250;
+    }
+
+    @Override
+    public RecentsState getHistoryForState(RecentsState previousState) {
+        return DEFAULT;
+    }
+
+    /**
+     * For this state, how modal should over view been shown. 0 modalness means all tasks drawn,
+     * 1 modalness means the current task is show on its own.
+     */
+    public float getOverviewModalness() {
+        return hasFlag(FLAG_MODAL) ? 1 : 0;
+    }
+
+    public boolean isFullScreen() {
+        return hasFlag(FLAG_FULL_SCREEN);
+    }
+
+    public boolean hasButtons() {
+        return hasFlag(FLAG_HAS_BUTTONS);
+    }
+
+    public float[] getOverviewScaleAndOffset(RecentsActivity activity) {
+        return new float[] { NO_SCALE, NO_OFFSET };
+    }
+
+
+    private static class ModalState extends RecentsState {
+
+        public ModalState(int id, int flags) {
+            super(id, flags);
+        }
+
+        @Override
+        public float[] getOverviewScaleAndOffset(RecentsActivity activity) {
+            return getOverviewScaleAndOffsetForModalState(activity);
+        }
+    }
+
+    private static class BackgroundAppState extends RecentsState {
+        public BackgroundAppState(int id, int flags) {
+            super(id, flags);
+        }
+
+        @Override
+        public float[] getOverviewScaleAndOffset(RecentsActivity activity) {
+            return getOverviewScaleAndOffsetForBackgroundState(activity);
+        }
+    }
+}

quickstep/recents_ui_overrides/src/com/android/quickstep/inputconsumers/DeviceLockedInputConsumer.java

@@ -21,8 +21,8 @@ import static android.view.MotionEvent.ACTION_UP;
 
 import static com.android.launcher3.Utilities.squaredHypot;
 import static com.android.launcher3.Utilities.squaredTouchSlop;
-import static com.android.quickstep.MultiStateCallback.DEBUG_STATES;
 import static com.android.quickstep.LauncherSwipeHandler.MIN_PROGRESS_FOR_OVERVIEW;
+import static com.android.quickstep.MultiStateCallback.DEBUG_STATES;
 import static com.android.quickstep.util.ActiveGestureLog.INTENT_EXTRA_LOG_TRACE_ID;
 
 import android.content.ComponentName;
@@ -44,12 +44,13 @@ import com.android.quickstep.GestureState;
 import com.android.quickstep.InputConsumer;
 import com.android.quickstep.LockScreenRecentsActivity;
 import com.android.quickstep.MultiStateCallback;
+import com.android.quickstep.RecentsAnimationCallbacks;
 import com.android.quickstep.RecentsAnimationController;
 import com.android.quickstep.RecentsAnimationDeviceState;
-import com.android.quickstep.RecentsAnimationCallbacks;
 import com.android.quickstep.RecentsAnimationTargets;
 import com.android.quickstep.TaskAnimationManager;
 import com.android.quickstep.util.AppWindowAnimationHelper;
+import com.android.quickstep.util.TransformParams;
 import com.android.systemui.shared.recents.model.ThumbnailData;
 import com.android.systemui.shared.system.InputMonitorCompat;
 import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
@@ -84,7 +85,7 @@ public class DeviceLockedInputConsumer implements InputConsumer,
 
     private final PointF mTouchDown = new PointF();
     private final AppWindowAnimationHelper mAppWindowAnimationHelper;
-    private final AppWindowAnimationHelper.TransformParams mTransformParams;
+    private final TransformParams mTransformParams;
     private final Point mDisplaySize;
     private final MultiStateCallback mStateCallback;
 
@@ -105,7 +106,7 @@ public class DeviceLockedInputConsumer implements InputConsumer,
         mGestureState = gestureState;
         mTouchSlopSquared = squaredTouchSlop(context);
         mAppWindowAnimationHelper = new AppWindowAnimationHelper(context);
-        mTransformParams = new AppWindowAnimationHelper.TransformParams();
+        mTransformParams = new TransformParams();
         mInputMonitorCompat = inputMonitorCompat;
 
         // Do not use DeviceProfile as the user data might be locked
@@ -230,8 +231,7 @@ public class DeviceLockedInputConsumer implements InputConsumer,
 
         Utilities.scaleRectAboutCenter(displaySize, SCALE_DOWN);
         displaySize.offsetTo(displaySize.left, 0);
-        mTransformParams.setTargetSet(mRecentsAnimationTargets)
+        mTransformParams.setTargetSet(mRecentsAnimationTargets);
-                .setLauncherOnTop(true);
         mAppWindowAnimationHelper.updateTargetRect(displaySize);
         mAppWindowAnimationHelper.applyTransform(mTransformParams);
 

quickstep/recents_ui_overrides/src/com/android/quickstep/inputconsumers/OverviewInputConsumer.java

@@ -18,6 +18,7 @@ package com.android.quickstep.inputconsumers;
 import static com.android.launcher3.config.FeatureFlags.ENABLE_QUICKSTEP_LIVE_TILE;
 import static com.android.systemui.shared.system.ActivityManagerWrapper.CLOSE_SYSTEM_WINDOWS_REASON_RECENTS;
 
+import android.util.Log;
 import android.view.KeyEvent;
 import android.view.MotionEvent;
 
@@ -95,6 +96,9 @@ public class OverviewInputConsumer<T extends BaseDraggingActivity>
             ev.setEdgeFlags(flags | Utilities.EDGE_NAV_BAR);
         }
         ev.offsetLocation(-mLocationOnScreen[0], -mLocationOnScreen[1]);
+        if (TestProtocol.sDebugTracing) {
+            Log.d(TestProtocol.PAUSE_NOT_DETECTED, "OverviewInputConsumer");
+        }
         boolean handled = mEventReceiver.test(ev);
         ev.offsetLocation(mLocationOnScreen[0], mLocationOnScreen[1]);
         ev.setEdgeFlags(flags);

quickstep/recents_ui_overrides/src/com/android/quickstep/util/AppWindowAnimationHelper.java

@@ -15,11 +15,10 @@
  */
 package com.android.quickstep.util;
 
-import static com.android.launcher3.config.FeatureFlags.ENABLE_QUICKSTEP_LIVE_TILE;
+import static com.android.launcher3.Utilities.boundToRange;
+import static com.android.launcher3.Utilities.mapRange;
 import static com.android.systemui.shared.system.QuickStepContract.getWindowCornerRadius;
 import static com.android.systemui.shared.system.QuickStepContract.supportsRoundedCornersOnWindows;
-import static com.android.systemui.shared.system.RemoteAnimationTargetCompat.ACTIVITY_TYPE_HOME;
-import static com.android.systemui.shared.system.RemoteAnimationTargetCompat.MODE_CLOSING;
 
 import android.annotation.TargetApi;
 import android.content.Context;
@@ -36,9 +35,7 @@ import com.android.launcher3.BaseDraggingActivity;
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
-import com.android.launcher3.anim.Interpolators;
 import com.android.launcher3.views.BaseDragLayer;
-import com.android.quickstep.RemoteAnimationTargets;
 import com.android.quickstep.SystemUiProxy;
 import com.android.quickstep.views.RecentsView;
 import com.android.quickstep.views.TaskThumbnailView;
@@ -46,14 +43,14 @@ import com.android.systemui.shared.recents.utilities.RectFEvaluator;
 import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
 import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplierCompat;
 import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplierCompat.SurfaceParams;
-import com.android.systemui.shared.system.TransactionCompat;
+import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplierCompat.SurfaceParams.Builder;
 import com.android.systemui.shared.system.WindowManagerWrapper;
 
 /**
  * Utility class to handle window clip animation
  */
 @TargetApi(Build.VERSION_CODES.P)
-public class AppWindowAnimationHelper {
+public class AppWindowAnimationHelper implements TransformParams.BuilderProxy {
 
     // The bounds of the source app in device coordinates
     private final RectF mSourceStackBounds = new RectF();
@@ -94,9 +91,6 @@ public class AppWindowAnimationHelper {
     // Corner radius currently applied to transformed window.
     private float mCurrentCornerRadius;
 
-    private TargetAlphaProvider mTaskAlphaCallback = (t, a) -> a;
-    private TargetAlphaProvider mBaseAlphaCallback = (t, a) -> 1;
-
     public AppWindowAnimationHelper(RecentsOrientedState orientedState, Context context) {
         Resources res = context.getResources();
         mOrientedState = orientedState;
@@ -167,7 +161,7 @@ public class AppWindowAnimationHelper {
         if (surfaceParams == null) {
             return null;
         }
-        applySurfaceParams(params.mSyncTransactionApplier, surfaceParams);
+        params.applySurfaceParams(surfaceParams);
         return mCurrentRect;
     }
 
@@ -176,97 +170,60 @@ public class AppWindowAnimationHelper {
      * the SurfaceParams to apply via {@link SyncRtSurfaceTransactionApplierCompat#applyParams}.
      */
     public SurfaceParams[] computeSurfaceParams(TransformParams params) {
-        if (params.mTargetSet == null) {
+        if (params.getTargetSet() == null) {
             return null;
         }
 
-        float progress = Utilities.boundToRange(params.mProgress, 0, 1);
         updateCurrentRect(params);
+        return params.createSurfaceParams(this);
+    }
 
-        SurfaceParams[] surfaceParams = new SurfaceParams[params.mTargetSet.unfilteredApps.length];
+    @Override
-        for (int i = 0; i < params.mTargetSet.unfilteredApps.length; i++) {
+    public void onBuildParams(Builder builder, RemoteAnimationTargetCompat app,
-            RemoteAnimationTargetCompat app = params.mTargetSet.unfilteredApps[i];
+            int targetMode, TransformParams params) {
-            SurfaceParams.Builder builder = new SurfaceParams.Builder(app.leash);
+        Rect crop = mTmpRect;
+        crop.set(app.screenSpaceBounds);
+        crop.offsetTo(0, 0);
+        float cornerRadius = 0f;
+        float scale = Math.max(mCurrentRect.width(), mTargetRect.width()) / crop.width();
+        if (app.mode == targetMode
+                && app.activityType != RemoteAnimationTargetCompat.ACTIVITY_TYPE_HOME) {
+            mTmpMatrix.setRectToRect(mSourceRect, mCurrentRect, ScaleToFit.FILL);
             if (app.localBounds != null) {
-                mTmpMatrix.setTranslate(0, 0);
+                mTmpMatrix.postTranslate(app.localBounds.left, app.localBounds.top);
-                if (app.activityType == ACTIVITY_TYPE_HOME && app.mode == MODE_CLOSING) {
-                    mTmpMatrix.setTranslate(app.localBounds.left, app.localBounds.top);
-                }
             } else {
-                mTmpMatrix.setTranslate(app.position.x, app.position.y);
+                mTmpMatrix.postTranslate(app.position.x, app.position.y);
+            }
+            mCurrentClipRectF.roundOut(crop);
+            if (mSupportsRoundedCornersOnWindows) {
+                if (params.getCornerRadius() > -1) {
+                    cornerRadius = params.getCornerRadius();
+                    scale = mCurrentRect.width() / crop.width();
+                } else {
+                    float windowCornerRadius = mUseRoundedCornersOnWindows
+                            ? mWindowCornerRadius : 0;
+                    cornerRadius = mapRange(boundToRange(params.getProgress(), 0, 1),
+                            windowCornerRadius, mTaskCornerRadius);
+                }
+                mCurrentCornerRadius = cornerRadius;
             }
 
-            Rect crop = mTmpRect;
+            builder.withMatrix(mTmpMatrix)
-            crop.set(app.screenSpaceBounds);
-            crop.offsetTo(0, 0);
-            float alpha;
-            float cornerRadius = 0f;
-            float scale = Math.max(mCurrentRect.width(), mTargetRect.width()) / crop.width();
-            if (app.mode == params.mTargetSet.targetMode) {
-                alpha = mTaskAlphaCallback.getAlpha(app, params.mTargetAlpha);
-                if (app.activityType != RemoteAnimationTargetCompat.ACTIVITY_TYPE_HOME) {
-                    mTmpMatrix.setRectToRect(mSourceRect, mCurrentRect, ScaleToFit.FILL);
-                    if (app.localBounds != null) {
-                        mTmpMatrix.postTranslate(app.localBounds.left, app.localBounds.top);
-                    } else {
-                        mTmpMatrix.postTranslate(app.position.x, app.position.y);
-                    }
-                    mCurrentClipRectF.roundOut(crop);
-                    if (mSupportsRoundedCornersOnWindows) {
-                        if (params.mCornerRadius > -1) {
-                            cornerRadius = params.mCornerRadius;
-                            scale = mCurrentRect.width() / crop.width();
-                        } else {
-                            float windowCornerRadius = mUseRoundedCornersOnWindows
-                                    ? mWindowCornerRadius : 0;
-                            cornerRadius = Utilities.mapRange(progress, windowCornerRadius,
-                                    mTaskCornerRadius);
-                        }
-                        mCurrentCornerRadius = cornerRadius;
-                    }
-                    // Fade out Assistant overlay.
-                    if (app.activityType == RemoteAnimationTargetCompat.ACTIVITY_TYPE_ASSISTANT
-                            && app.isNotInRecents) {
-                        alpha = 1 - Interpolators.DEACCEL_2_5.getInterpolation(progress);
-                    }
-                } else if (params.mTargetSet.hasRecents) {
-                    // If home has a different target then recents, reverse anim the
-                    // home target.
-                    alpha = 1 - (progress * params.mTargetAlpha);
-                }
-            } else {
-                alpha = mBaseAlphaCallback.getAlpha(app, progress);
-                if (ENABLE_QUICKSTEP_LIVE_TILE.get() && params.mLauncherOnTop) {
-                    crop = null;
-                }
-            }
-            builder.withAlpha(alpha)
-                    .withMatrix(mTmpMatrix)
                     .withWindowCrop(crop)
                     // Since radius is in Surface space, but we draw the rounded corners in screen
                     // space, we have to undo the scale
                     .withCornerRadius(cornerRadius / scale);
-            surfaceParams[i] = builder.build();
+
         }
-        return surfaceParams;
     }
 
     public RectF updateCurrentRect(TransformParams params) {
-        if (params.mCurrentRect != null) {
+        if (params.getCurrentRect() != null) {
-            mCurrentRect.set(params.mCurrentRect);
+            mCurrentRect.set(params.getCurrentRect());
         } else {
             mTmpRectF.set(mTargetRect);
-            Utilities.scaleRectFAboutCenter(mTmpRectF, params.mOffsetScale);
+            mCurrentRect.set(mRectFEvaluator.evaluate(
-            mCurrentRect.set(mRectFEvaluator.evaluate(params.mProgress, mSourceRect, mTmpRectF));
+                    params.getProgress(), mSourceRect, mTmpRectF));
-            if (mOrientedState == null
-                    || !mOrientedState.isMultipleOrientationSupportedByDevice()) {
-                mCurrentRect.offset(params.mOffset, 0);
-            } else {
-                int displayRotation = mOrientedState.getDisplayRotation();
-                int launcherRotation = mOrientedState.getLauncherRotation();
-                mOrientedState.getOrientationHandler().offsetTaskRect(mCurrentRect,
-                    params.mOffset, displayRotation, launcherRotation);
-            }
         }
 
         updateClipRect(params);
@@ -275,7 +232,7 @@ public class AppWindowAnimationHelper {
 
     private void updateClipRect(TransformParams params) {
         // Don't clip past progress > 1.
-        float progress = Math.min(1, params.mProgress);
+        float progress = Math.min(1, params.getProgress());
         mCurrentClipRectF.left = mSourceWindowClipInsets.left * progress;
         mCurrentClipRectF.top = mSourceWindowClipInsets.top * progress;
         mCurrentClipRectF.right =
@@ -289,28 +246,6 @@ public class AppWindowAnimationHelper {
         return mCurrentRectWithInsets;
     }
 
-    public static void applySurfaceParams(@Nullable SyncRtSurfaceTransactionApplierCompat
-            syncTransactionApplier, SurfaceParams[] params) {
-        if (syncTransactionApplier != null) {
-            syncTransactionApplier.scheduleApply(params);
-        } else {
-            TransactionCompat t = new TransactionCompat();
-            for (SurfaceParams param : params) {
-                SyncRtSurfaceTransactionApplierCompat.applyParams(t, param);
-            }
-            t.setEarlyWakeup();
-            t.apply();
-        }
-    }
-
-    public void setTaskAlphaCallback(TargetAlphaProvider callback) {
-        mTaskAlphaCallback = callback;
-    }
-
-    public void setBaseAlphaCallback(TargetAlphaProvider callback) {
-        mBaseAlphaCallback = callback;
-    }
-
     public void fromTaskThumbnailView(TaskThumbnailView ttv, RecentsView rv,
             @Nullable RemoteAnimationTargetCompat target) {
         BaseDraggingActivity activity = BaseDraggingActivity.fromContext(ttv.getContext());
@@ -386,157 +321,4 @@ public class AppWindowAnimationHelper {
         return mCurrentCornerRadius;
     }
 
-    public interface TargetAlphaProvider {
-        float getAlpha(RemoteAnimationTargetCompat target, float expectedAlpha);
-    }
-
-    public static class TransformParams {
-        private float mProgress;
-        private float mOffset;
-        private float mOffsetScale;
-        private @Nullable RectF mCurrentRect;
-        private float mTargetAlpha;
-        private float mCornerRadius;
-        private boolean mLauncherOnTop;
-        private RemoteAnimationTargets mTargetSet;
-        private SyncRtSurfaceTransactionApplierCompat mSyncTransactionApplier;
-
-        public TransformParams() {
-            mProgress = 0;
-            mOffset = 0;
-            mOffsetScale = 1;
-            mCurrentRect = null;
-            mTargetAlpha = 1;
-            mCornerRadius = -1;
-            mLauncherOnTop = false;
-        }
-
-        /**
-         * Sets the progress of the transformation, where 0 is the source and 1 is the target. We
-         * automatically adjust properties such as currentRect and cornerRadius based on this
-         * progress, unless they are manually overridden by setting them on this TransformParams.
-         */
-        public TransformParams setProgress(float progress) {
-            mProgress = progress;
-            return this;
-        }
-
-        /**
-         * Sets the corner radius of the transformed window, in pixels. If unspecified (-1), we
-         * simply interpolate between the window's corner radius to the task view's corner radius,
-         * based on {@link #mProgress}.
-         */
-        public TransformParams setCornerRadius(float cornerRadius) {
-            mCornerRadius = cornerRadius;
-            return this;
-        }
-
-        /**
-         * Sets the current rect to show the transformed window, in device coordinates. This gives
-         * the caller manual control of where to show the window. If unspecified (null), we
-         * interpolate between {@link AppWindowAnimationHelper#mSourceRect} and
-         * {@link AppWindowAnimationHelper#mTargetRect}, based on {@link #mProgress}.
-         */
-        public TransformParams setCurrentRect(RectF currentRect) {
-            mCurrentRect = currentRect;
-            return this;
-        }
-
-        /**
-         * Specifies the alpha of the transformed window. Default is 1.
-         */
-        public TransformParams setTargetAlpha(float targetAlpha) {
-            mTargetAlpha = targetAlpha;
-            return this;
-        }
-
-        /**
-         * If {@link #mCurrentRect} is null (i.e. {@link #setCurrentRect(RectF)} hasn't overridden
-         * the default), then offset the current rect by this amount after computing the rect based
-         * on {@link #mProgress}.
-         */
-        public TransformParams setOffset(float offset) {
-            mOffset = offset;
-            return this;
-        }
-
-        /**
-         * If {@link #mCurrentRect} is null (i.e. {@link #setCurrentRect(RectF)} hasn't overridden
-         * the default), then scale the current rect by this amount after computing the rect based
-         * on {@link #mProgress}.
-         */
-        public TransformParams setOffsetScale(float offsetScale) {
-            mOffsetScale = offsetScale;
-            return this;
-        }
-
-        /**
-         * If true, sets the crop = null and layer = Integer.MAX_VALUE for targets that don't match
-         * {@link #mTargetSet}.targetMode. (Currently only does this when live tiles are enabled.)
-         */
-        public TransformParams setLauncherOnTop(boolean launcherOnTop) {
-            mLauncherOnTop = launcherOnTop;
-            return this;
-        }
-
-        /**
-         * Specifies the set of RemoteAnimationTargetCompats that are included in the transformation
-         * that these TransformParams help compute. These TransformParams generally only apply to
-         * the targetSet.apps which match the targetSet.targetMode (e.g. the MODE_CLOSING app when
-         * swiping to home).
-         */
-        public TransformParams setTargetSet(RemoteAnimationTargets targetSet) {
-            mTargetSet = targetSet;
-            return this;
-        }
-
-        /**
-         * Sets the SyncRtSurfaceTransactionApplierCompat that will apply the SurfaceParams that
-         * are computed based on these TransformParams.
-         */
-        public TransformParams setSyncTransactionApplier(
-                SyncRtSurfaceTransactionApplierCompat applier) {
-            mSyncTransactionApplier = applier;
-            return this;
-        }
-
-        // Pubic getters so outside packages can read the values.
-
-        public float getProgress() {
-            return mProgress;
-        }
-
-        public float getOffset() {
-            return mOffset;
-        }
-
-        public float getOffsetScale() {
-            return mOffsetScale;
-        }
-
-        @Nullable
-        public RectF getCurrentRect() {
-            return mCurrentRect;
-        }
-
-        public float getTargetAlpha() {
-            return mTargetAlpha;
-        }
-
-        public float getCornerRadius() {
-            return mCornerRadius;
-        }
-
-        public boolean isLauncherOnTop() {
-            return mLauncherOnTop;
-        }
-
-        public RemoteAnimationTargets getTargetSet() {
-            return mTargetSet;
-        }
-
-        public SyncRtSurfaceTransactionApplierCompat getSyncTransactionApplier() {
-            return mSyncTransactionApplier;
-        }
-    }
 }

quickstep/recents_ui_overrides/src/com/android/quickstep/util/ShelfPeekAnim.java

@@ -15,10 +15,10 @@
  */
 package com.android.quickstep.util;
 
-import static com.android.launcher3.LauncherAppTransitionManagerImpl.INDEX_SHELF_ANIM;
 import static com.android.launcher3.LauncherState.BACKGROUND_APP;
 import static com.android.launcher3.LauncherState.OVERVIEW;
 import static com.android.launcher3.anim.Interpolators.OVERSHOOT_1_2;
+import static com.android.launcher3.uioverrides.states.QuickstepAtomicAnimationFactory.INDEX_SHELF_ANIM;
 
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;

quickstep/recents_ui_overrides/src/com/android/quickstep/util/TaskViewSimulator.java

@@ -19,8 +19,6 @@ import static android.view.Surface.ROTATION_0;
 
 import static com.android.launcher3.states.RotationHelper.deltaRotation;
 import static com.android.launcher3.touch.PagedOrientationHandler.MATRIX_POST_TRANSLATE;
-import static com.android.quickstep.util.AppWindowAnimationHelper.applySurfaceParams;
-import static com.android.quickstep.util.RecentsOrientedState.isFixedRotationTransformEnabled;
 import static com.android.quickstep.util.RecentsOrientedState.postDisplayRotation;
 import static com.android.systemui.shared.system.WindowManagerWrapper.WINDOWING_MODE_FULLSCREEN;
 
@@ -33,24 +31,20 @@ import android.graphics.RectF;
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
-import com.android.launcher3.anim.Interpolators;
 import com.android.launcher3.touch.PagedOrientationHandler;
 import com.android.quickstep.AnimatedFloat;
-import com.android.quickstep.RecentsAnimationTargets;
-import com.android.quickstep.util.AppWindowAnimationHelper.TargetAlphaProvider;
-import com.android.quickstep.util.AppWindowAnimationHelper.TransformParams;
 import com.android.quickstep.views.RecentsView.ScrollState;
 import com.android.quickstep.views.TaskThumbnailView.PreviewPositionHelper;
 import com.android.quickstep.views.TaskView;
 import com.android.quickstep.views.TaskView.FullscreenDrawParams;
 import com.android.systemui.shared.recents.model.ThumbnailData;
 import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
-import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplierCompat.SurfaceParams;
+import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplierCompat.SurfaceParams.Builder;
 
 /**
  * A utility class which emulates the layout behavior of TaskView and RecentsView
  */
-public class TaskViewSimulator {
+public class TaskViewSimulator implements TransformParams.BuilderProxy {
 
     private final Rect mTmpCropRect = new Rect();
     private final RectF mTempRectF = new RectF();
@@ -66,14 +60,11 @@ public class TaskViewSimulator {
 
     private final Matrix mMatrix = new Matrix();
     private RemoteAnimationTargetCompat mRunningTarget;
-    private RecentsAnimationTargets mAllTargets;
-
-    private TargetAlphaProvider mTaskAlphaCallback = (t, a) -> a;
 
     // Thumbnail view properties
     private final Rect mThumbnailPosition = new Rect();
     private final ThumbnailData mThumbnailData = new ThumbnailData();
-    private final PreviewPositionHelper mPositionHelper;
+    private final PreviewPositionHelper mPositionHelper = new PreviewPositionHelper();
     private final Matrix mInversePositionMatrix = new Matrix();
 
     // TaskView properties
@@ -93,12 +84,8 @@ public class TaskViewSimulator {
     public TaskViewSimulator(Context context, WindowSizeStrategy sizeStrategy) {
         mContext = context;
         mSizeStrategy = sizeStrategy;
-        mPositionHelper = new PreviewPositionHelper(context);
 
         mOrientationState = new RecentsOrientedState(context, sizeStrategy, i -> { });
-        // We do not need to attach listeners as the simulator is created just for the gesture
-        // duration, and any settings are unlikely to change during this
-        mOrientationState.initWithoutListeners();
 
         mCurrentFullscreenParams = new FullscreenDrawParams(context);
         mPageSpacing = context.getResources().getDimensionPixelSize(R.dimen.recents_page_spacing);
@@ -117,15 +104,7 @@ public class TaskViewSimulator {
      * @see com.android.quickstep.views.RecentsView#setLayoutRotation(int, int)
      */
     public void setLayoutRotation(int touchRotation, int displayRotation) {
-        int launcherRotation;
+        mOrientationState.update(touchRotation, displayRotation);
-        if (!mOrientationState.isMultipleOrientationSupportedByDevice()
-                || mOrientationState.isHomeRotationAllowed()) {
-            launcherRotation = displayRotation;
-        } else {
-            launcherRotation = ROTATION_0;
-        }
-
-        mOrientationState.update(touchRotation, displayRotation, launcherRotation);
         mLayoutValid = false;
     }
 
@@ -143,10 +122,8 @@ public class TaskViewSimulator {
     /**
      * Sets the targets which the simulator will control
      */
-    public void setPreview(
+    public void setPreview(RemoteAnimationTargetCompat runningTarget) {
-            RemoteAnimationTargetCompat runningTarget, RecentsAnimationTargets allTargets) {
         mRunningTarget = runningTarget;
-        mAllTargets = allTargets;
 
         mThumbnailData.insets.set(mRunningTarget.contentInsets);
         // TODO: What is this?
@@ -169,10 +146,40 @@ public class TaskViewSimulator {
     }
 
     /**
-     * Sets an alternate function which can be used to control the alpha
+     * Returns the current clipped/visible window bounds in the window coordinate space
      */
-    public void setTaskAlphaCallback(TargetAlphaProvider callback) {
+    public RectF getCurrentCropRect() {
-        mTaskAlphaCallback = callback;
+        // Crop rect is the inverse of thumbnail matrix
+        RectF insets = mCurrentFullscreenParams.mCurrentDrawnInsets;
+        mTempRectF.set(-insets.left, -insets.top,
+                mTaskRect.width() + insets.right, mTaskRect.height() + insets.bottom);
+        mInversePositionMatrix.mapRect(mTempRectF);
+        return mTempRectF;
+    }
+
+    public RecentsOrientedState getOrientationState() {
+        return mOrientationState;
+    }
+
+    /**
+     * Returns the current transform applied to the window
+     */
+    public Matrix getCurrentMatrix() {
+        return mMatrix;
+    }
+
+    /**
+     * Applies the rotation on the matrix to so that it maps from launcher coordinate space to
+     * window coordinate space.
+     */
+    public void applyWindowToHomeRotation(Matrix matrix) {
+        mMatrix.postTranslate(mDp.windowX, mDp.windowY);
+        postDisplayRotation(deltaRotation(
+                mOrientationState.getLauncherRotation(), mOrientationState.getDisplayRotation()),
+                mDp.widthPx, mDp.heightPx, matrix);
+        if (mRunningTarget != null) {
+            matrix.postTranslate(-mRunningTarget.position.x, -mRunningTarget.position.y);
+        }
     }
 
     /**
@@ -186,12 +193,12 @@ public class TaskViewSimulator {
             mLayoutValid = true;
 
             getFullScreenScale();
-            mThumbnailData.rotation = isFixedRotationTransformEnabled(mContext)
+            mThumbnailData.rotation = mOrientationState.getDisplayRotation();
-                    ? mOrientationState.getDisplayRotation() : mPositionHelper.getCurrentRotation();
-
-            mPositionHelper.updateThumbnailMatrix(mThumbnailPosition, mThumbnailData,
-                    mTaskRect.width(), mTaskRect.height(), mDp);
 
+            mPositionHelper.updateThumbnailMatrix(
+                    mThumbnailPosition, mThumbnailData,
+                    mTaskRect.width(), mTaskRect.height(),
+                    mDp, mOrientationState.getLauncherRotation());
             mPositionHelper.getMatrix().invert(mInversePositionMatrix);
 
             PagedOrientationHandler poh = mOrientationState.getOrientationHandler();
@@ -201,7 +208,6 @@ public class TaskViewSimulator {
             mScrollValid = false;
         }
 
-
         if (!mScrollValid) {
             mScrollValid = true;
             int start = mOrientationState.getOrientationHandler()
@@ -233,11 +239,7 @@ public class TaskViewSimulator {
 
         // Apply recensView matrix
         mMatrix.postScale(recentsViewScale.value, recentsViewScale.value, mPivot.x, mPivot.y);
-        postDisplayRotation(deltaRotation(
+        applyWindowToHomeRotation(mMatrix);
-                mOrientationState.getLauncherRotation(), mOrientationState.getDisplayRotation()),
-                mDp.widthPx, mDp.heightPx, mMatrix);
-        mMatrix.postTranslate(mDp.windowX - mRunningTarget.position.x,
-                mDp.windowY - mRunningTarget.position.y);
 
         // Crop rect is the inverse of thumbnail matrix
         mTempRectF.set(-insets.left, -insets.top,
@@ -245,35 +247,18 @@ public class TaskViewSimulator {
         mInversePositionMatrix.mapRect(mTempRectF);
         mTempRectF.roundOut(mTmpCropRect);
 
-        SurfaceParams[] surfaceParams = new SurfaceParams[mAllTargets.unfilteredApps.length];
+        params.applySurfaceParams(params.createSurfaceParams(this));
-        for (int i = 0; i < mAllTargets.unfilteredApps.length; i++) {
+    }
-            RemoteAnimationTargetCompat app = mAllTargets.unfilteredApps[i];
-            SurfaceParams.Builder builder = new SurfaceParams.Builder(app.leash);
 
-            if (app.mode == mAllTargets.targetMode) {
+    @Override
-                float alpha = mTaskAlphaCallback.getAlpha(app, params.getTargetAlpha());
+    public void onBuildParams(Builder builder, RemoteAnimationTargetCompat app,
-                if (app.activityType != RemoteAnimationTargetCompat.ACTIVITY_TYPE_HOME) {
+            int targetMode, TransformParams params) {
-                    // Fade out Assistant overlay.
+        if (app.mode == targetMode
-                    if (app.activityType == RemoteAnimationTargetCompat.ACTIVITY_TYPE_ASSISTANT
+                && app.activityType != RemoteAnimationTargetCompat.ACTIVITY_TYPE_HOME) {
-                            && app.isNotInRecents) {
+            builder.withMatrix(mMatrix)
-                        alpha = Interpolators.ACCEL_2.getInterpolation(fullScreenProgress.value);
+                    .withWindowCrop(mTmpCropRect)
-                    }
+                    .withCornerRadius(getCurrentCornerRadius());
-
-                    builder.withAlpha(alpha)
-                            .withMatrix(mMatrix)
-                            .withWindowCrop(mTmpCropRect)
-                            .withCornerRadius(getCurrentCornerRadius());
-                } else if (params.getTargetSet().hasRecents) {
-                    // If home has a different target then recents, reverse anim the home target.
-                    builder.withAlpha(fullScreenProgress.value * params.getTargetAlpha());
-                }
-            } else {
-                builder.withAlpha(1);
-            }
-            surfaceParams[i] = builder.build();
         }
-
-        applySurfaceParams(params.getSyncTransactionApplier(), surfaceParams);
     }
 
     /**

quickstep/recents_ui_overrides/src/com/android/quickstep/util/TransformParams.java

@@ -0,0 +1,205 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.quickstep.util;
+
+import android.graphics.RectF;
+
+import androidx.annotation.Nullable;
+
+import com.android.launcher3.Utilities;
+import com.android.launcher3.anim.Interpolators;
+import com.android.quickstep.RemoteAnimationTargets;
+import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
+import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplierCompat;
+import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplierCompat.SurfaceParams;
+import com.android.systemui.shared.system.TransactionCompat;
+
+public class TransformParams {
+
+    private float mProgress;
+    private @Nullable RectF mCurrentRect;
+    private float mTargetAlpha;
+    private float mCornerRadius;
+    private RemoteAnimationTargets mTargetSet;
+    private SyncRtSurfaceTransactionApplierCompat mSyncTransactionApplier;
+
+    private TargetAlphaProvider mTaskAlphaCallback = (t, a) -> a;
+    private TargetAlphaProvider mBaseAlphaCallback = (t, a) -> 1;
+
+    public TransformParams() {
+        mProgress = 0;
+        mCurrentRect = null;
+        mTargetAlpha = 1;
+        mCornerRadius = -1;
+    }
+
+    /**
+     * Sets the progress of the transformation, where 0 is the source and 1 is the target. We
+     * automatically adjust properties such as currentRect and cornerRadius based on this
+     * progress, unless they are manually overridden by setting them on this TransformParams.
+     */
+    public TransformParams setProgress(float progress) {
+        mProgress = progress;
+        return this;
+    }
+
+    /**
+     * Sets the corner radius of the transformed window, in pixels. If unspecified (-1), we
+     * simply interpolate between the window's corner radius to the task view's corner radius,
+     * based on {@link #mProgress}.
+     */
+    public TransformParams setCornerRadius(float cornerRadius) {
+        mCornerRadius = cornerRadius;
+        return this;
+    }
+
+    /**
+     * Sets the current rect to show the transformed window, in device coordinates. This gives
+     * the caller manual control of where to show the window. If unspecified (null), we
+     * interpolate between {@link AppWindowAnimationHelper#mSourceRect} and
+     * {@link AppWindowAnimationHelper#mTargetRect}, based on {@link #mProgress}.
+     */
+    public TransformParams setCurrentRect(RectF currentRect) {
+        mCurrentRect = currentRect;
+        return this;
+    }
+
+    /**
+     * Specifies the alpha of the transformed window. Default is 1.
+     */
+    public TransformParams setTargetAlpha(float targetAlpha) {
+        mTargetAlpha = targetAlpha;
+        return this;
+    }
+
+    /**
+     * Specifies the set of RemoteAnimationTargetCompats that are included in the transformation
+     * that these TransformParams help compute. These TransformParams generally only apply to
+     * the targetSet.apps which match the targetSet.targetMode (e.g. the MODE_CLOSING app when
+     * swiping to home).
+     */
+    public TransformParams setTargetSet(RemoteAnimationTargets targetSet) {
+        mTargetSet = targetSet;
+        return this;
+    }
+
+    /**
+     * Sets the SyncRtSurfaceTransactionApplierCompat that will apply the SurfaceParams that
+     * are computed based on these TransformParams.
+     */
+    public TransformParams setSyncTransactionApplier(
+            SyncRtSurfaceTransactionApplierCompat applier) {
+        mSyncTransactionApplier = applier;
+        return this;
+    }
+
+    /**
+     * Sets an alternate function which can be used to control the alpha of target app
+     */
+    public TransformParams setTaskAlphaCallback(TargetAlphaProvider callback) {
+        mTaskAlphaCallback = callback;
+        return this;
+    }
+
+    /**
+     * Sets an alternate function which can be used to control the alpha of non-target app
+     */
+    public TransformParams setBaseAlphaCallback(TargetAlphaProvider callback) {
+        mBaseAlphaCallback = callback;
+        return this;
+    }
+
+    public SurfaceParams[] createSurfaceParams(BuilderProxy proxy) {
+        RemoteAnimationTargets targets = mTargetSet;
+        SurfaceParams[] surfaceParams = new SurfaceParams[targets.unfilteredApps.length];
+        for (int i = 0; i < targets.unfilteredApps.length; i++) {
+            RemoteAnimationTargetCompat app = targets.unfilteredApps[i];
+            SurfaceParams.Builder builder = new SurfaceParams.Builder(app.leash);
+
+            float progress = Utilities.boundToRange(getProgress(), 0, 1);
+            float alpha;
+            if (app.mode == targets.targetMode) {
+                alpha = mTaskAlphaCallback.getAlpha(app, getTargetAlpha());
+                if (app.activityType != RemoteAnimationTargetCompat.ACTIVITY_TYPE_HOME) {
+                    // Fade out Assistant overlay.
+                    if (app.activityType == RemoteAnimationTargetCompat.ACTIVITY_TYPE_ASSISTANT
+                            && app.isNotInRecents) {
+                        alpha = 1 - Interpolators.DEACCEL_2_5.getInterpolation(progress);
+                    }
+                } else if (targets.hasRecents) {
+                    // If home has a different target then recents, reverse anim the
+                    // home target.
+                    alpha = 1 - (progress * getTargetAlpha());
+                }
+            } else {
+                alpha = mBaseAlphaCallback.getAlpha(app, progress);
+            }
+            proxy.onBuildParams(builder.withAlpha(alpha), app, targets.targetMode, this);
+            surfaceParams[i] = builder.build();
+        }
+        return surfaceParams;
+    }
+
+    // Pubic getters so outside packages can read the values.
+
+    public float getProgress() {
+        return mProgress;
+    }
+
+    @Nullable
+    public RectF getCurrentRect() {
+        return mCurrentRect;
+    }
+
+    public float getTargetAlpha() {
+        return mTargetAlpha;
+    }
+
+    public float getCornerRadius() {
+        return mCornerRadius;
+    }
+
+    public RemoteAnimationTargets getTargetSet() {
+        return mTargetSet;
+    }
+
+    public SyncRtSurfaceTransactionApplierCompat getSyncTransactionApplier() {
+        return mSyncTransactionApplier;
+    }
+
+    public void applySurfaceParams(SurfaceParams[] params) {
+        if (mSyncTransactionApplier != null) {
+            mSyncTransactionApplier.scheduleApply(params);
+        } else {
+            TransactionCompat t = new TransactionCompat();
+            for (SurfaceParams param : params) {
+                SyncRtSurfaceTransactionApplierCompat.applyParams(t, param);
+            }
+            t.setEarlyWakeup();
+            t.apply();
+        }
+    }
+
+    public interface TargetAlphaProvider {
+        float getAlpha(RemoteAnimationTargetCompat target, float expectedAlpha);
+    }
+
+    public interface BuilderProxy {
+
+        void onBuildParams(SurfaceParams.Builder builder,
+                RemoteAnimationTargetCompat app, int targetMode, TransformParams params);
+    }
+}

quickstep/recents_ui_overrides/src/com/android/quickstep/views/ClearAllButton.java

@@ -64,7 +64,13 @@ public class ClearAllButton extends Button implements PageCallbacks {
     protected void onAttachedToWindow() {
         super.onAttachedToWindow();
         mParent = (RecentsView) getParent();
-        mIsRtl = !mParent.getPagedOrientationHandler().getRecentsRtlSetting(getResources());
+        mIsRtl = getLayoutDirection() == LAYOUT_DIRECTION_RTL;
+    }
+
+    @Override
+    public void onRtlPropertiesChanged(int layoutDirection) {
+        super.onRtlPropertiesChanged(layoutDirection);
+        mIsRtl = getLayoutDirection() == LAYOUT_DIRECTION_RTL;
     }
 
     @Override

quickstep/recents_ui_overrides/src/com/android/quickstep/views/LauncherRecentsView.java

@@ -31,27 +31,24 @@ import android.animation.AnimatorSet;
 import android.animation.ObjectAnimator;
 import android.annotation.TargetApi;
 import android.content.Context;
-import android.graphics.Canvas;
 import android.os.Build;
 import android.util.AttributeSet;
 import android.view.MotionEvent;
-import android.view.View;
 import android.widget.FrameLayout;
 
 import com.android.launcher3.BaseQuickstepLauncher;
 import com.android.launcher3.Hotseat;
 import com.android.launcher3.LauncherState;
-import com.android.launcher3.LauncherStateManager.StateListener;
 import com.android.launcher3.anim.Interpolators;
 import com.android.launcher3.appprediction.PredictionUiStateManager;
 import com.android.launcher3.appprediction.PredictionUiStateManager.Client;
 import com.android.launcher3.statehandlers.DepthController;
+import com.android.launcher3.statemanager.StateManager.StateListener;
 import com.android.launcher3.uioverrides.plugins.PluginManagerWrapper;
 import com.android.launcher3.util.TraceHelper;
 import com.android.launcher3.views.ScrimView;
 import com.android.quickstep.SysUINavigationMode;
-import com.android.quickstep.util.AppWindowAnimationHelper;
+import com.android.quickstep.util.TransformParams;
-import com.android.quickstep.util.AppWindowAnimationHelper.TransformParams;
 import com.android.systemui.plugins.PluginListener;
 import com.android.systemui.plugins.RecentsExtraCard;
 
@@ -60,7 +57,7 @@ import com.android.systemui.plugins.RecentsExtraCard;
  */
 @TargetApi(Build.VERSION_CODES.O)
 public class LauncherRecentsView extends RecentsView<BaseQuickstepLauncher>
-        implements StateListener {
+        implements StateListener<LauncherState> {
 
     private final TransformParams mTransformParams = new TransformParams();
 
@@ -124,24 +121,6 @@ public class LauncherRecentsView extends RecentsView<BaseQuickstepLauncher>
         }
     }
 
-    @Override
-    public void draw(Canvas canvas) {
-        maybeDrawEmptyMessage(canvas);
-        super.draw(canvas);
-    }
-
-    @Override
-    public void onViewAdded(View child) {
-        super.onViewAdded(child);
-        updateEmptyMessage();
-    }
-
-    @Override
-    protected void onTaskStackUpdated() {
-        // Lazily update the empty message only when the task stack is reapplied
-        updateEmptyMessage();
-    }
-
     /**
      * Animates adjacent tasks and translate hotseat off screen as well.
      */
@@ -213,14 +192,14 @@ public class LauncherRecentsView extends RecentsView<BaseQuickstepLauncher>
 
     @Override
     public void redrawLiveTile(boolean mightNeedToRefill) {
-        AppWindowAnimationHelper.TransformParams transformParams = getLiveTileParams(mightNeedToRefill);
+        TransformParams transformParams = getLiveTileParams(mightNeedToRefill);
         if (transformParams != null) {
             mAppWindowAnimationHelper.applyTransform(transformParams);
         }
     }
 
     @Override
-    public AppWindowAnimationHelper.TransformParams getLiveTileParams(
+    public TransformParams getLiveTileParams(
             boolean mightNeedToRefill) {
         if (!mEnableDrawingLiveTile || mRecentsAnimationController == null
                 || mRecentsAnimationTargets == null || mAppWindowAnimationHelper == null) {
@@ -248,8 +227,7 @@ public class LauncherRecentsView extends RecentsView<BaseQuickstepLauncher>
                     .setCurrentRect(mTempRectF)
                     .setTargetAlpha(taskView.getAlpha())
                     .setSyncTransactionApplier(mSyncTransactionApplier)
-                    .setTargetSet(mRecentsAnimationTargets)
+                    .setTargetSet(mRecentsAnimationTargets);
-                    .setLauncherOnTop(true);
         }
         return mTransformParams;
     }
@@ -373,4 +351,16 @@ public class LauncherRecentsView extends RecentsView<BaseQuickstepLauncher>
     protected DepthController getDepthController() {
         return mActivity.getDepthController();
     }
+
+    @Override
+    public void setModalStateEnabled(boolean isModalState) {
+        super.setModalStateEnabled(isModalState);
+        if (isModalState) {
+            mActivity.getStateManager().goToState(LauncherState.OVERVIEW_MODAL_TASK);
+        } else {
+            if (mActivity.isInState(LauncherState.OVERVIEW_MODAL_TASK)) {
+                mActivity.getStateManager().goToState(LauncherState.OVERVIEW);
+            }
+        }
+    }
 }

quickstep/recents_ui_overrides/src/com/android/quickstep/views/OverviewActionsView.java

@@ -31,6 +31,7 @@ import androidx.annotation.Nullable;
 import com.android.launcher3.R;
 import com.android.launcher3.util.MultiValueAlpha;
 import com.android.launcher3.util.MultiValueAlpha.AlphaProperty;
+import com.android.quickstep.SysUINavigationMode.Mode;
 import com.android.quickstep.TaskOverlayFactory.OverlayUICallbacks;
 
 import java.lang.annotation.Retention;
@@ -141,4 +142,19 @@ public class OverviewActionsView<T extends OverlayUICallbacks> extends FrameLayo
     public AlphaProperty getVisibilityAlpha() {
         return mMultiValueAlpha.getProperty(INDEX_VISIBILITY_ALPHA);
     }
+
+    /** Updates vertical margins for different navigation mode. */
+    public void updateVerticalMarginForNavModeChange(Mode mode) {
+        int bottomMargin = 0;
+        if (mode == Mode.THREE_BUTTONS) {
+            bottomMargin = getResources()
+                    .getDimensionPixelSize(R.dimen.overview_actions_bottom_margin_three_button);
+        } else {
+            bottomMargin = getResources()
+                    .getDimensionPixelSize(R.dimen.overview_actions_bottom_margin_gesture);
+        }
+        LayoutParams params = (LayoutParams) getLayoutParams();
+        params.setMargins(
+                params.leftMargin, params.topMargin, params.rightMargin, bottomMargin);
+    }
 }

quickstep/recents_ui_overrides/src/com/android/quickstep/views/RecentsView.java

@@ -16,6 +16,8 @@
 
 package com.android.quickstep.views;
 
+import static android.view.Surface.ROTATION_0;
+
 import static com.android.launcher3.BaseActivity.STATE_HANDLER_INVISIBILITY_FLAGS;
 import static com.android.launcher3.InvariantDeviceProfile.CHANGE_FLAG_ICON_PARAMS;
 import static com.android.launcher3.LauncherAnimUtils.SCALE_PROPERTY;
@@ -30,8 +32,8 @@ import static com.android.launcher3.anim.Interpolators.ACCEL_2;
 import static com.android.launcher3.anim.Interpolators.FAST_OUT_SLOW_IN;
 import static com.android.launcher3.anim.Interpolators.LINEAR;
 import static com.android.launcher3.config.FeatureFlags.ENABLE_QUICKSTEP_LIVE_TILE;
-import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.TASK_DISMISS_SWIPE_UP;
+import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_TASK_DISMISS_SWIPE_UP;
-import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.TASK_LAUNCH_SWIPE_DOWN;
+import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_TASK_LAUNCH_SWIPE_DOWN;
 import static com.android.launcher3.statehandlers.DepthController.DEPTH;
 import static com.android.launcher3.uioverrides.touchcontrollers.TaskViewTouchController.SUCCESS_TRANSITION_PROGRESS;
 import static com.android.launcher3.userevent.nano.LauncherLogProto.Action.Touch.TAP;
@@ -55,7 +57,6 @@ import android.app.ActivityManager;
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
-import android.content.res.Configuration;
 import android.graphics.Canvas;
 import android.graphics.Point;
 import android.graphics.PointF;
@@ -123,14 +124,16 @@ import com.android.quickstep.TaskThumbnailCache;
 import com.android.quickstep.TaskUtils;
 import com.android.quickstep.ViewUtils;
 import com.android.quickstep.util.AppWindowAnimationHelper;
+import com.android.quickstep.util.LayoutUtils;
 import com.android.quickstep.util.RecentsOrientedState;
+import com.android.quickstep.util.SplitScreenBounds;
+import com.android.quickstep.util.TransformParams;
 import com.android.quickstep.util.WindowSizeStrategy;
 import com.android.systemui.plugins.ResourceProvider;
 import com.android.systemui.shared.recents.IPinnedStackAnimationListener;
 import com.android.systemui.shared.recents.model.Task;
 import com.android.systemui.shared.recents.model.ThumbnailData;
 import com.android.systemui.shared.system.ActivityManagerWrapper;
-import com.android.systemui.shared.system.ConfigurationCompat;
 import com.android.systemui.shared.system.LauncherEventUtil;
 import com.android.systemui.shared.system.PackageManagerWrapper;
 import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplierCompat;
@@ -145,7 +148,8 @@ import java.util.function.Consumer;
 @TargetApi(Build.VERSION_CODES.P)
 public abstract class RecentsView<T extends BaseActivity> extends PagedView implements Insettable,
         TaskThumbnailCache.HighResLoadingState.HighResLoadingStateChangedCallback,
-        InvariantDeviceProfile.OnIDPChangeListener, TaskVisualsChangeListener {
+        InvariantDeviceProfile.OnIDPChangeListener, TaskVisualsChangeListener,
+        SplitScreenBounds.OnChangeListener {
 
     private static final String TAG = RecentsView.class.getSimpleName();
 
@@ -507,7 +511,8 @@ public abstract class RecentsView<T extends BaseActivity> extends PagedView impl
         mIPinnedStackAnimationListener.setActivity(mActivity);
         SystemUiProxy.INSTANCE.get(getContext()).setPinnedStackAnimationListener(
                 mIPinnedStackAnimationListener);
-        mOrientationState.init();
+        mOrientationState.initListeners();
+        SplitScreenBounds.INSTANCE.addOnChangeListener(this);
     }
 
     @Override
@@ -521,8 +526,9 @@ public abstract class RecentsView<T extends BaseActivity> extends PagedView impl
         RecentsModel.INSTANCE.get(getContext()).removeThumbnailChangeListener(this);
         mIdp.removeOnChangeListener(this);
         SystemUiProxy.INSTANCE.get(getContext()).setPinnedStackAnimationListener(null);
+        SplitScreenBounds.INSTANCE.removeOnChangeListener(this);
         mIPinnedStackAnimationListener.setActivity(null);
-        mOrientationState.destroy();
+        mOrientationState.destroyListeners();
     }
 
     @Override
@@ -548,6 +554,13 @@ public abstract class RecentsView<T extends BaseActivity> extends PagedView impl
         child.setLayoutDirection(mIsRtl ? View.LAYOUT_DIRECTION_LTR : View.LAYOUT_DIRECTION_RTL);
         updateTaskStartIndex(child);
         mActionsView.updateHiddenFlags(HIDDEN_NO_TASKS, false);
+        updateEmptyMessage();
+    }
+
+    @Override
+    public void draw(Canvas canvas) {
+        maybeDrawEmptyMessage(canvas);
+        super.draw(canvas);
     }
 
     private void updateTaskStartIndex(View affectingView) {
@@ -598,20 +611,20 @@ public abstract class RecentsView<T extends BaseActivity> extends PagedView impl
     }
 
     @Override
-    protected void onPageEndTransition() {
+    protected void onPageBeginTransition() {
-        super.onPageEndTransition();
+        super.onPageBeginTransition();
-        if (getNextPage() > 0) {
+        LayoutUtils.setViewEnabled(mActionsView, false);
-            setSwipeDownShouldLaunchApp(true);
-        }
     }
 
     @Override
-    protected void onConfigurationChanged(Configuration newConfig) {
+    protected void onPageEndTransition() {
-        super.onConfigurationChanged(newConfig);
+        super.onPageEndTransition();
-        int windowConfigurationRotation = ConfigurationCompat
+        if (getScrollX() == getScrollForPage(getPageNearestToCenterOfScreen())) {
-                .getWindowConfigurationRotation(getResources().getConfiguration());
+            LayoutUtils.setViewEnabled(mActionsView, true);
-        setLayoutInternal(mOrientationState.getTouchRotation(),
+        }
-                mOrientationState.getDisplayRotation(), windowConfigurationRotation);
+        if (getNextPage() > 0) {
+            setSwipeDownShouldLaunchApp(true);
+        }
     }
 
     @Override
@@ -760,7 +773,10 @@ public abstract class RecentsView<T extends BaseActivity> extends PagedView impl
         return taskViewCount;
     }
 
-    protected void onTaskStackUpdated() { }
+    protected void onTaskStackUpdated() {
+        // Lazily update the empty message only when the task stack is reapplied
+        updateEmptyMessage();
+    }
 
     public void resetTaskVisuals() {
         for (int i = getTaskViewCount() - 1; i >= 0; i--) {
@@ -827,6 +843,11 @@ public abstract class RecentsView<T extends BaseActivity> extends PagedView impl
         mSizeStrategy.calculateTaskSize(mActivity, mActivity.getDeviceProfile(), outRect);
     }
 
+    /** Gets the task size for modal state. */
+    public void getModalTaskSize(Rect outRect) {
+        mSizeStrategy.calculateModalTaskSize(mActivity, mActivity.getDeviceProfile(), outRect);
+    }
+
     @Override
     protected boolean computeScrollHelper() {
         boolean scrolling = super.computeScrollHelper();
@@ -958,6 +979,7 @@ public abstract class RecentsView<T extends BaseActivity> extends PagedView impl
         setCurrentPage(0);
         mDwbToastShown = false;
         mActivity.getSystemUiController().updateUiState(UI_STATE_OVERVIEW, 0);
+        LayoutUtils.setViewEnabled(mActionsView, true);
     }
 
     public @Nullable TaskView getRunningTaskView() {
@@ -965,7 +987,15 @@ public abstract class RecentsView<T extends BaseActivity> extends PagedView impl
     }
 
     public int getRunningTaskIndex() {
-        TaskView tv = getRunningTaskView();
+        return getTaskIndexForId(mRunningTaskId);
+    }
+
+    /**
+     * Get the index of the task view whose id matches {@param taskId}.
+     * @return -1 if there is no task view for the task id, else the index of the task view.
+     */
+    public int getTaskIndexForId(int taskId) {
+        TaskView tv = getTaskView(taskId);
         return tv == null ? -1 : indexOfChild(tv);
     }
 
@@ -1294,7 +1324,8 @@ public abstract class RecentsView<T extends BaseActivity> extends PagedView impl
             ComponentKey compKey = TaskUtils.getLaunchComponentKeyForTask(taskView.getTask().key);
             mActivity.getUserEventDispatcher().logTaskLaunchOrDismiss(
                     endState.logAction, Direction.UP, index, compKey);
-            mActivity.getStatsLogManager().log(TASK_DISMISS_SWIPE_UP, taskView.buildProto());
+            mActivity.getStatsLogManager().log(
+                    LAUNCHER_TASK_DISMISS_SWIPE_UP, taskView.buildProto());
         }
     }
 
@@ -1574,19 +1605,19 @@ public abstract class RecentsView<T extends BaseActivity> extends PagedView impl
     }
 
     public void setLayoutRotation(int touchRotation, int displayRotation) {
-        int launcherRotation = mOrientationState.getLauncherRotation();
+        if (mOrientationState.update(touchRotation, displayRotation)) {
-        setLayoutInternal(touchRotation, displayRotation, launcherRotation);
-    }
-
-    private void setLayoutInternal(int touchRotation, int displayRotation, int launcherRotation) {
-        if (mOrientationState.update(touchRotation, displayRotation, launcherRotation)) {
             mOrientationHandler = mOrientationState.getOrientationHandler();
             mIsRtl = mOrientationHandler.getRecentsRtlSetting(getResources());
-            setLayoutDirection(mIsRtl ? View.LAYOUT_DIRECTION_RTL : View.LAYOUT_DIRECTION_LTR);
+            setLayoutDirection(mIsRtl
+                    ? View.LAYOUT_DIRECTION_RTL
+                    : View.LAYOUT_DIRECTION_LTR);
+            mClearAllButton.setLayoutDirection(mIsRtl
+                    ? View.LAYOUT_DIRECTION_LTR
+                    : View.LAYOUT_DIRECTION_RTL);
             mClearAllButton.setRotation(mOrientationHandler.getDegreesRotated());
             mActivity.getDragLayer().recreateControllers();
             mActionsView.updateHiddenFlags(HIDDEN_NON_ZERO_ROTATION,
-                    touchRotation != 0 || launcherRotation != 0);
+                    touchRotation != 0 || mOrientationState.getLauncherRotation() != ROTATION_0);
             requestLayout();
         }
     }
@@ -1682,7 +1713,8 @@ public abstract class RecentsView<T extends BaseActivity> extends PagedView impl
         }
         int count = getChildCount();
 
-        TaskView runningTask = mRunningTaskId == -1 ? null : getTaskView(mRunningTaskId);
+        TaskView runningTask = mRunningTaskId == -1 || !mRunningTaskTileHidden
+                ? null : getTaskView(mRunningTaskId);
         int midPoint = runningTask == null ? -1 : indexOfChild(runningTask);
         int currentPage = getCurrentPage();
 
@@ -1872,8 +1904,8 @@ public abstract class RecentsView<T extends BaseActivity> extends PagedView impl
                     mActivity.getUserEventDispatcher().logTaskLaunchOrDismiss(
                             endState.logAction, Direction.DOWN, indexOfChild(tv),
                             TaskUtils.getLaunchComponentKeyForTask(task.key));
-                    mActivity.getStatsLogManager().log(TASK_LAUNCH_SWIPE_DOWN, tv.buildProto()
+                    mActivity.getStatsLogManager().log(
-                    );
+                            LAUNCHER_TASK_LAUNCH_SWIPE_DOWN, tv.buildProto());
                 }
             } else {
                 onTaskLaunched(false);
@@ -2059,14 +2091,6 @@ public abstract class RecentsView<T extends BaseActivity> extends PagedView impl
         return getScrollForPage(getRunningTaskIndex()) - mOrientationHandler.getPrimaryScroll(this);
     }
 
-    /**
-     * @return How many pixels the running task is offset on the x-axis due to the current scrollX
-     * and parent scale.
-     */
-    public float getScrollOffsetScaled() {
-        return getScrollOffset() * mOrientationHandler.getPrimaryScale(this);
-    }
-
     public Consumer<MotionEvent> getEventDispatcher(float navbarRotation) {
         float degreesRotated;
         if (navbarRotation == 0) {
@@ -2100,7 +2124,7 @@ public abstract class RecentsView<T extends BaseActivity> extends PagedView impl
         return mAppWindowAnimationHelper;
     }
 
-    public AppWindowAnimationHelper.TransformParams getLiveTileParams(
+    public TransformParams getLiveTileParams(
             boolean mightNeedToRefill) {
         return null;
     }
@@ -2145,18 +2169,6 @@ public abstract class RecentsView<T extends BaseActivity> extends PagedView impl
         updatePageOffsets();
         if (getCurrentPageTaskView() != null) {
             getCurrentPageTaskView().setModalness(modalness);
-            TaskView tv = getCurrentPageTaskView();
-
-            // Move the task view up as it scales...
-            // ...the icon on taskview is hidden in modal state, so consider the top of the task
-            mTempFloatPoint[0] = 0;
-            mTempFloatPoint[1] = tv.getTop() + mTaskTopMargin;
-            // ...find the top after the transformation
-            getMatrix().mapPoints(mTempFloatPoint);
-
-            // ...make it match the top inset
-            float calcOffset = (mInsets.top - mTempFloatPoint[1]) * mTaskModalness;
-            tv.setTranslationY(calcOffset);
         }
     }
 
@@ -2165,6 +2177,19 @@ public abstract class RecentsView<T extends BaseActivity> extends PagedView impl
         return null;
     }
 
+    @Override
+    public void onSecondaryWindowBoundsChanged() {
+        // Invalidate the task view size
+        setInsets(mInsets);
+        requestLayout();
+    }
+
+    /**
+     * Enables or disables modal state for RecentsView
+     * @param isModalState
+     */
+    public void setModalStateEnabled(boolean isModalState) { }
+
     /**
      * Used to register callbacks for when our empty message state changes.
      *

quickstep/recents_ui_overrides/src/com/android/quickstep/views/TaskThumbnailView.java

@@ -90,7 +90,7 @@ public class TaskThumbnailView extends View implements PluginListener<OverviewSc
 
     // Contains the portion of the thumbnail that is clipped when fullscreen progress = 0.
     private final Rect mPreviewRect = new Rect();
-    private final PreviewPositionHelper mPreviewPositionHelper;
+    private final PreviewPositionHelper mPreviewPositionHelper = new PreviewPositionHelper();
     // Initialize with dummy value. It is overridden later by TaskView
     private TaskView.FullscreenDrawParams mFullscreenParams = TEMP_PARAMS;
 
@@ -122,7 +122,6 @@ public class TaskThumbnailView extends View implements PluginListener<OverviewSc
         mDimmingPaintAfterClearing.setColor(Color.BLACK);
         mActivity = BaseActivity.fromContext(context);
         mIsDarkTextTheme = Themes.getAttrBoolean(mActivity, R.attr.isWorkspaceDarkText);
-        mPreviewPositionHelper = new PreviewPositionHelper(context);
     }
 
     /**
@@ -349,8 +348,11 @@ public class TaskThumbnailView extends View implements PluginListener<OverviewSc
         if (mBitmapShader != null && mThumbnailData != null) {
             mPreviewRect.set(0, 0, mThumbnailData.thumbnail.getWidth(),
                     mThumbnailData.thumbnail.getHeight());
+            int currentRotation = ConfigurationCompat.getWindowConfigurationRotation(
+                    mActivity.getResources().getConfiguration());
             mPreviewPositionHelper.updateThumbnailMatrix(mPreviewRect, mThumbnailData,
-                    getMeasuredWidth(), getMeasuredHeight(), mActivity.getDeviceProfile());
+                    getMeasuredWidth(), getMeasuredHeight(), mActivity.getDeviceProfile(),
+                    currentRotation);
 
             mBitmapShader.setLocalMatrix(mPreviewPositionHelper.mMatrix);
             mPaint.setShader(mBitmapShader);
@@ -417,17 +419,6 @@ public class TaskThumbnailView extends View implements PluginListener<OverviewSc
         private float mClipBottom = -1;
         private boolean mIsOrientationChanged;
 
-        private final Context mContext;
-
-        public PreviewPositionHelper(Context context) {
-            mContext = context;
-        }
-
-        public int getCurrentRotation() {
-            return ConfigurationCompat.getWindowConfigurationRotation(
-                    mContext.getResources().getConfiguration());
-        }
-
         public Matrix getMatrix() {
             return mMatrix;
         }
@@ -436,7 +427,7 @@ public class TaskThumbnailView extends View implements PluginListener<OverviewSc
          * Updates the matrix based on the provided parameters
          */
         public void updateThumbnailMatrix(Rect thumbnailPosition, ThumbnailData thumbnailData,
-                int canvasWidth, int canvasHeight, DeviceProfile dp) {
+                int canvasWidth, int canvasHeight, DeviceProfile dp, int currentRotation) {
             boolean isRotated = false;
             boolean isOrientationDifferent;
             mClipBottom = -1;
@@ -451,7 +442,6 @@ public class TaskThumbnailView extends View implements PluginListener<OverviewSc
 
             final float thumbnailScale;
             int thumbnailRotation = thumbnailData.rotation;
-            int currentRotation = getCurrentRotation();
             int deltaRotate = getRotationDelta(currentRotation, thumbnailRotation);
 
             Rect deviceInsets = dp.getInsets();

quickstep/recents_ui_overrides/src/com/android/quickstep/views/TaskView.java

@@ -30,7 +30,7 @@ import static com.android.launcher3.anim.Interpolators.FAST_OUT_SLOW_IN;
 import static com.android.launcher3.anim.Interpolators.LINEAR;
 import static com.android.launcher3.anim.Interpolators.TOUCH_RESPONSE_INTERPOLATOR;
 import static com.android.launcher3.config.FeatureFlags.ENABLE_QUICKSTEP_LIVE_TILE;
-import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.TASK_LAUNCH_TAP;
+import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_TASK_LAUNCH_TAP;
 
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
@@ -212,7 +212,7 @@ public class TaskView extends FrameLayout implements PageCallbacks, Reusable {
             mActivity.getUserEventDispatcher().logTaskLaunchOrDismiss(
                     Touch.TAP, Direction.NONE, getRecentsView().indexOfChild(this),
                     TaskUtils.getLaunchComponentKeyForTask(getTask().key));
-            mActivity.getStatsLogManager().log(TASK_LAUNCH_TAP, buildProto());
+            mActivity.getStatsLogManager().log(LAUNCHER_TASK_LAUNCH_TAP, buildProto());
         });
 
         mCurrentFullscreenParams = new FullscreenDrawParams(context);
@@ -449,13 +449,13 @@ public class TaskView extends FrameLayout implements PageCallbacks, Reusable {
 
     public void setOrientationState(RecentsOrientedState orientationState) {
         PagedOrientationHandler orientationHandler = orientationState.getOrientationHandler();
-        boolean isRtl = orientationHandler.getRecentsRtlSetting(getResources());
+        boolean isRtl = getLayoutDirection() == LAYOUT_DIRECTION_RTL;
         LayoutParams snapshotParams = (LayoutParams) mSnapshotView.getLayoutParams();
         int thumbnailPadding = (int) getResources().getDimension(R.dimen.task_thumbnail_top_margin);
         LayoutParams iconParams = (LayoutParams) mIconView.getLayoutParams();
         switch (orientationHandler.getRotation()) {
             case Surface.ROTATION_90:
-                iconParams.gravity = (isRtl ? END : START) | CENTER_VERTICAL;
+                iconParams.gravity = (isRtl ? START : END) | CENTER_VERTICAL;
                 iconParams.rightMargin = -thumbnailPadding;
                 iconParams.leftMargin = 0;
                 iconParams.topMargin = snapshotParams.topMargin / 2;

quickstep/res/values-de/strings.xml

@@ -20,7 +20,7 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="recent_task_option_split_screen" msgid="5353188922202653570">"Splitscreen"</string>
-    <string name="recent_task_option_pin" msgid="7929860679018978258">"Anpinnen"</string>
+    <string name="recent_task_option_pin" msgid="7929860679018978258">"Fixieren"</string>
     <string name="recent_task_option_freeform" msgid="48863056265284071">"Freeform-Modus"</string>
     <string name="recents_empty_message" msgid="7040467240571714191">"Keine kürzlich verwendeten Elemente"</string>
     <string name="accessibility_app_usage_settings" msgid="6312864233673544149">"Einstellungen zur App-Nutzung"</string>

quickstep/res/values/dimens.xml

@@ -17,14 +17,15 @@
 <resources>
 
     <dimen name="task_thumbnail_top_margin">24dp</dimen>
-    <dimen name="task_thumbnail_bottom_margin_with_actions">44dp</dimen>
     <dimen name="task_thumbnail_half_top_margin">12dp</dimen>
     <dimen name="task_thumbnail_icon_size">48dp</dimen>
     <!-- For screens without rounded corners -->
     <dimen name="task_corner_radius_small">2dp</dimen>
 
     <!-- Overrideable in overlay that provides the Overview Actions. -->
-    <dimen name="overview_actions_height">110dp</dimen>
+    <dimen name="overview_actions_height">66dp</dimen>
+    <dimen name="overview_actions_bottom_margin_gesture">16dp</dimen>
+    <dimen name="overview_actions_bottom_margin_three_button">8dp</dimen>
     <dimen name="overview_actions_horizontal_margin">16dp</dimen>
 
     <dimen name="recents_page_spacing">10dp</dimen>
@@ -61,7 +62,8 @@
     <dimen name="task_card_menu_shadow_height">3dp</dimen>
     <dimen name="task_card_menu_horizontal_padding">0dp</dimen>
     <dimen name="portrait_task_card_horz_space">136dp</dimen>
-    <dimen name="portrait_task_card_horz_space_big_overview">24dp</dimen>
+    <dimen name="portrait_task_card_horz_space_big_overview">96dp</dimen>
+    <dimen name="portrait_modal_task_card_horz_space">60dp</dimen>
     <dimen name="landscape_task_card_horz_space">200dp</dimen>
     <dimen name="multi_window_task_card_horz_space">100dp</dimen>
     <!-- Copied from framework resource:

quickstep/res/values/strings.xml

@@ -128,16 +128,18 @@
     <!-- Feedback shown during interactive parts of Home gesture tutorial when the gesture is horizontal instead of vertical. [CHAR LIMIT=100] -->
     <string name="home_gesture_feedback_wrong_swipe_direction" translatable="false">Make sure you swipe straight up</string>
 
-  <!-- Title shown on the confirmation screen after successful gesture. [CHAR LIMIT=30] -->
+    <!-- Title shown on the confirmation screen after successful gesture. [CHAR LIMIT=30] -->
-  <string name="gesture_tutorial_confirm_title" translatable="false">All set</string>
+    <string name="gesture_tutorial_confirm_title" translatable="false">All set</string>
-    <!-- Button text shown on a button on the confirm screen. [CHAR LIMIT=14] -->
+    <!-- Button text shown on a button on the confirm screen to leave the tutorial. [CHAR LIMIT=14] -->
-    <string name="gesture_tutorial_action_button_label" translatable="false">Done</string>
+    <string name="gesture_tutorial_action_button_label_done" translatable="false">Done</string>
-    <!-- Button text shown on a text button on the confirm screen. [CHAR LIMIT=14] -->
+    <!-- Button text shown on a button to go to Settings. [CHAR LIMIT=14] -->
-    <string name="gesture_tutorial_action_text_button_label" translatable="false">Settings</string>
+    <string name="gesture_tutorial_action_button_label_settings" translatable="false">Settings</string>
 
     <!-- ******* Overview ******* -->
     <!-- Label for a button that causes the current overview app to be shared. [CHAR_LIMIT=40] -->
     <string name="action_share">Share</string>
     <!-- Label for a button that causes a screen shot of the current app to be taken. [CHAR_LIMIT=40] -->
     <string name="action_screenshot">Screenshot</string>
+    <!-- Message shown when an action is blocked by a policy enforced by the app or the organization managing the device. [CHAR_LIMIT=NONE] -->
+    <string name="blocked_by_policy">This action isn\'t allowed by the app or your organization</string>
 </resources>

quickstep/res/values/styles.xml

@@ -79,8 +79,8 @@
 
     <style name="OverviewActionButton"
         parent="@android:style/Widget.DeviceDefault.Button.Borderless">
-        <item name="android:textColor">?attr/workspaceTextColor</item>
+        <item name="android:textColor">@color/overview_button</item>
-        <item name="android:drawableTint">?attr/workspaceTextColor</item>
+        <item name="android:drawableTint">@color/overview_button</item>
         <item name="android:tint">?attr/workspaceTextColor</item>
         <item name="android:drawablePadding">4dp</item>
         <item name="android:textAllCaps">false</item>

quickstep/robolectric_tests/src/com/android/quickstep/RecentsActivityTest.java

@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.quickstep;
+
+import static com.android.launcher3.util.LauncherUIHelper.doLayout;
+
+import android.graphics.Bitmap;
+import android.graphics.Bitmap.Config;
+
+import com.android.quickstep.fallback.FallbackRecentsView;
+import com.android.systemui.shared.recents.model.ThumbnailData;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.robolectric.Robolectric;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.android.controller.ActivityController;
+import org.robolectric.annotation.LooperMode;
+import org.robolectric.annotation.LooperMode.Mode;
+import org.robolectric.shadows.ShadowLooper;
+import org.robolectric.util.ReflectionHelpers;
+
+
+@RunWith(RobolectricTestRunner.class)
+@LooperMode(Mode.PAUSED)
+public class RecentsActivityTest {
+
+    @Test
+    public void testRecentsActivityCreates() {
+        ActivityController<RecentsActivity> controller =
+                Robolectric.buildActivity(RecentsActivity.class);
+
+        RecentsActivity launcher = controller.setup().get();
+        doLayout(launcher);
+
+        // TODO: Ensure that LauncherAppState is not created
+    }
+
+    @Test
+    public void testRecets_showCurrentTask() {
+        ActivityController<RecentsActivity> controller =
+                Robolectric.buildActivity(RecentsActivity.class);
+
+        RecentsActivity activity = controller.setup().get();
+        doLayout(activity);
+
+        FallbackRecentsView frv = activity.getOverviewPanel();
+        frv.showCurrentTask(22);
+        doLayout(activity);
+
+        ThumbnailData thumbnailData = new ThumbnailData();
+        ReflectionHelpers.setField(thumbnailData, "thumbnail",
+                Bitmap.createBitmap(300, 500, Config.ARGB_8888));
+        frv.switchToScreenshot(thumbnailData, () -> { });
+        ShadowLooper.idleMainLooper();
+    }
+}

quickstep/src/com/android/launcher3/BaseQuickstepLauncher.java

@@ -30,7 +30,6 @@ import android.content.SharedPreferences;
 import android.os.Bundle;
 import android.os.CancellationSignal;
 
-import com.android.launcher3.LauncherStateManager.StateHandler;
 import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.model.WellbeingModel;
 import com.android.launcher3.popup.SystemShortcut;
@@ -38,6 +37,7 @@ import com.android.launcher3.proxy.ProxyActivityStarter;
 import com.android.launcher3.proxy.StartActivityParams;
 import com.android.launcher3.statehandlers.BackButtonAlphaHandler;
 import com.android.launcher3.statehandlers.DepthController;
+import com.android.launcher3.statemanager.StateManager.StateHandler;
 import com.android.launcher3.uioverrides.RecentsViewStateController;
 import com.android.launcher3.util.OnboardingPrefs;
 import com.android.launcher3.util.UiThreadHelper;
@@ -92,6 +92,9 @@ public abstract class BaseQuickstepLauncher extends Launcher
     @Override
     public void onNavigationModeChanged(Mode newMode) {
         getDragLayer().recreateControllers();
+        if (mActionsView != null && isOverviewActionsEnabled()) {
+            mActionsView.updateVerticalMarginForNavModeChange(newMode);
+        }
     }
 
     @Override
@@ -150,6 +153,7 @@ public abstract class BaseQuickstepLauncher extends Launcher
 
     @Override
     protected void onDeferredResumed() {
+        super.onDeferredResumed();
         if (mPendingActivityRequestCode != -1 && isInState(NORMAL)) {
             // Remove any active ProxyActivityStarter task and send RESULT_CANCELED to Launcher.
             onActivityResult(mPendingActivityRequestCode, RESULT_CANCELED, null);
@@ -167,13 +171,18 @@ public abstract class BaseQuickstepLauncher extends Launcher
         mActionsView = findViewById(R.id.overview_actions_view);
         ((RecentsView) getOverviewPanel()).init(mActionsView);
 
-        if (FeatureFlags.ENABLE_OVERVIEW_ACTIONS.get() && removeShelfFromOverview(this)) {
+        if (isOverviewActionsEnabled()) {
             // Overview is above all other launcher elements, including qsb, so move it to the top.
             getOverviewPanel().bringToFront();
             mActionsView.bringToFront();
+            mActionsView.updateVerticalMarginForNavModeChange(SysUINavigationMode.getMode(this));
         }
     }
 
+    private boolean isOverviewActionsEnabled() {
+        return FeatureFlags.ENABLE_OVERVIEW_ACTIONS.get() && removeShelfFromOverview(this);
+    }
+
     public <T extends OverviewActionsView> T getActionsView() {
         return (T) mActionsView;
     }
@@ -186,7 +195,7 @@ public abstract class BaseQuickstepLauncher extends Launcher
     }
 
     @Override
-    protected StateHandler[] createStateHandlers() {
+    protected StateHandler<LauncherState>[] createStateHandlers() {
         return new StateHandler[] {
                 getAllAppsController(),
                 getWorkspace(),
@@ -200,9 +209,8 @@ public abstract class BaseQuickstepLauncher extends Launcher
     }
 
     @Override
-    protected OnboardingPrefs createOnboardingPrefs(SharedPreferences sharedPrefs,
+    protected OnboardingPrefs createOnboardingPrefs(SharedPreferences sharedPrefs) {
-            LauncherStateManager stateManager) {
+        return new QuickstepOnboardingPrefs(this, sharedPrefs);
-        return new QuickstepOnboardingPrefs(this, sharedPrefs, stateManager);
     }
 
     @Override

quickstep/src/com/android/launcher3/statehandlers/BackButtonAlphaHandler.java

@@ -16,14 +16,13 @@
 
 package com.android.launcher3.statehandlers;
 
-import static com.android.launcher3.LauncherState.FLAG_HIDE_BACK_BUTTON;
 import static com.android.launcher3.anim.Interpolators.LINEAR;
 import static com.android.quickstep.AnimatedFloat.VALUE;
 
 import com.android.launcher3.BaseQuickstepLauncher;
 import com.android.launcher3.LauncherState;
-import com.android.launcher3.LauncherStateManager;
 import com.android.launcher3.anim.PendingAnimation;
+import com.android.launcher3.statemanager.StateManager.StateHandler;
 import com.android.launcher3.states.StateAnimationConfig;
 import com.android.launcher3.util.UiThreadHelper;
 import com.android.quickstep.AnimatedFloat;
@@ -33,7 +32,7 @@ import com.android.quickstep.SystemUiProxy;
 /**
  * State handler for animating back button alpha
  */
-public class BackButtonAlphaHandler implements LauncherStateManager.StateHandler {
+public class BackButtonAlphaHandler implements StateHandler<LauncherState> {
 
     private final BaseQuickstepLauncher mLauncher;
     private final AnimatedFloat mBackAlpha = new AnimatedFloat(this::updateBackAlpha);

quickstep/src/com/android/launcher3/statehandlers/DepthController.java

@@ -26,10 +26,10 @@ import android.view.ViewTreeObserver;
 
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherState;
-import com.android.launcher3.LauncherStateManager;
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.anim.PendingAnimation;
+import com.android.launcher3.statemanager.StateManager.StateHandler;
 import com.android.launcher3.states.StateAnimationConfig;
 import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
 import com.android.systemui.shared.system.SurfaceControlCompat;
@@ -39,7 +39,7 @@ import com.android.systemui.shared.system.WallpaperManagerCompat;
 /**
  * Controls blur and wallpaper zoom, for the Launcher surface only.
  */
-public class DepthController implements LauncherStateManager.StateHandler {
+public class DepthController implements StateHandler<LauncherState> {
 
     public static final FloatProperty<DepthController> DEPTH =
             new FloatProperty<DepthController>("depth") {

quickstep/src/com/android/launcher3/uioverrides/BaseRecentsViewStateController.java

@@ -36,9 +36,9 @@ import androidx.annotation.NonNull;
 
 import com.android.launcher3.BaseQuickstepLauncher;
 import com.android.launcher3.LauncherState;
-import com.android.launcher3.LauncherStateManager.StateHandler;
 import com.android.launcher3.anim.PendingAnimation;
 import com.android.launcher3.graphics.OverviewScrim;
+import com.android.launcher3.statemanager.StateManager.StateHandler;
 import com.android.launcher3.states.StateAnimationConfig;
 import com.android.quickstep.views.RecentsView;
 
@@ -49,7 +49,7 @@ import com.android.quickstep.views.RecentsView;
  * @param <T> the recents view
  */
 public abstract class BaseRecentsViewStateController<T extends RecentsView>
-        implements StateHandler {
+        implements StateHandler<LauncherState> {
     protected final T mRecentsView;
     protected final BaseQuickstepLauncher mLauncher;
 

quickstep/src/com/android/quickstep/BaseActivityInterface.java

@@ -18,14 +18,11 @@ package com.android.quickstep;
 import android.annotation.TargetApi;
 import android.content.Context;
 import android.graphics.Rect;
-import android.graphics.RectF;
 import android.os.Build;
-import android.util.Pair;
 import android.view.MotionEvent;
 import android.view.View;
 import android.view.animation.Interpolator;
 
-import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.annotation.UiThread;
 
@@ -33,7 +30,6 @@ import com.android.launcher3.BaseDraggingActivity;
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.anim.AnimatorPlaybackController;
 import com.android.launcher3.statehandlers.DepthController;
-import com.android.launcher3.touch.PagedOrientationHandler;
 import com.android.quickstep.util.ActivityInitListener;
 import com.android.quickstep.util.ShelfPeekAnim;
 import com.android.systemui.shared.recents.model.ThumbnailData;
@@ -52,24 +48,13 @@ public interface BaseActivityInterface<T extends BaseDraggingActivity> {
 
     int getSwipeUpDestinationAndLength(DeviceProfile dp, Context context, Rect outRect);
 
-    /**
-     * @return The progress of the swipe where we start resisting the user, where 0 is fullscreen
-     * and 1 is recents. These values should probably be greater than 1 to let the user swipe past
-     * recents before we start resisting them.
-     */
-    default Pair<Float, Float> getSwipeUpPullbackStartAndMaxProgress() {
-        return new Pair<>(1.4f, 1.8f);
-    }
-
     void onSwipeUpToRecentsComplete();
 
     default void onSwipeUpToHomeComplete() { }
     void onAssistantVisibilityChanged(float visibility);
 
-    @NonNull HomeAnimationFactory prepareHomeUI();
+    AnimationFactory prepareRecentsUI(
-
+            boolean activityVisible, Consumer<AnimatorPlaybackController> callback);
-    AnimationFactory prepareRecentsUI(boolean activityVisible, boolean animateActivity,
-            Consumer<AnimatorPlaybackController> callback);
 
     ActivityInitListener createActivityInitListener(Predicate<Boolean> onInitListener);
 
@@ -152,35 +137,4 @@ public interface BaseActivityInterface<T extends BaseDraggingActivity> {
          */
         default void setRecentsAttachedToAppWindow(boolean attached, boolean animate) { }
     }
-
-    interface HomeAnimationFactory {
-
-        /** Return the floating view that will animate in sync with the closing window. */
-        default @Nullable View getFloatingView() {
-            return null;
-        }
-
-        @NonNull RectF getWindowTargetRect();
-
-        @NonNull AnimatorPlaybackController createActivityAnimationToHome();
-
-        default void playAtomicAnimation(float velocity) {
-            // No-op
-        }
-
-        static RectF getDefaultWindowTargetRect(PagedOrientationHandler orientationHandler,
-            DeviceProfile dp) {
-            final int halfIconSize = dp.iconSizePx / 2;
-            float primaryDimension = orientationHandler
-                .getPrimaryValue(dp.availableWidthPx, dp.availableHeightPx);
-            float secondaryDimension = orientationHandler
-                .getSecondaryValue(dp.availableWidthPx, dp.availableHeightPx);
-            final float targetX =  primaryDimension / 2f;
-            final float targetY = secondaryDimension - dp.hotseatBarSizePx;
-            // Fallback to animate to center of screen.
-            return new RectF(targetX - halfIconSize, targetY - halfIconSize,
-                    targetX + halfIconSize, targetY + halfIconSize);
-        }
-
-    }
 }

quickstep/src/com/android/quickstep/BaseRecentsActivity.java

@@ -1,168 +0,0 @@
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package com.android.quickstep;
-
-import static android.content.pm.ActivityInfo.CONFIG_ORIENTATION;
-import static android.content.pm.ActivityInfo.CONFIG_SCREEN_SIZE;
-
-import android.content.Intent;
-import android.content.res.Configuration;
-import android.os.Bundle;
-
-import com.android.launcher3.AbstractFloatingView;
-import com.android.launcher3.BaseDraggingActivity;
-import com.android.launcher3.DeviceProfile;
-import com.android.launcher3.InvariantDeviceProfile;
-import com.android.launcher3.R;
-import com.android.launcher3.util.ActivityTracker;
-import com.android.launcher3.util.SystemUiController;
-import com.android.launcher3.util.Themes;
-
-import java.io.FileDescriptor;
-import java.io.PrintWriter;
-
-/**
- * A base fallback recents activity that provides support for device profile changes, activity
- * lifecycle tracking, and basic input handling from recents.
- *
- * This class is only used as a fallback in case the default launcher does not have a recents
- * implementation.
- */
-public abstract class BaseRecentsActivity extends BaseDraggingActivity {
-
-    public static final ActivityTracker<BaseRecentsActivity> ACTIVITY_TRACKER =
-            new ActivityTracker<>();
-    private Configuration mOldConfig;
-
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-
-        mOldConfig = new Configuration(getResources().getConfiguration());
-        initDeviceProfile();
-        initViews();
-
-        getSystemUiController().updateUiState(SystemUiController.UI_STATE_BASE_WINDOW,
-                Themes.getAttrBoolean(this, R.attr.isWorkspaceDarkText));
-        ACTIVITY_TRACKER.handleCreate(this);
-    }
-
-    /**
-     * Init drag layer and overview panel views.
-     */
-    abstract protected void initViews();
-
-    @Override
-    public void onConfigurationChanged(Configuration newConfig) {
-        int diff = newConfig.diff(mOldConfig);
-        if ((diff & (CONFIG_ORIENTATION | CONFIG_SCREEN_SIZE)) != 0) {
-            onHandleConfigChanged();
-        }
-        mOldConfig.setTo(newConfig);
-        super.onConfigurationChanged(newConfig);
-    }
-
-    /**
-     * Logic for when device configuration changes (rotation, screen size change, multi-window,
-     * etc.)
-     */
-    protected void onHandleConfigChanged() {
-        mUserEventDispatcher = null;
-        initDeviceProfile();
-
-        AbstractFloatingView.closeOpenViews(this, true,
-                AbstractFloatingView.TYPE_ALL & ~AbstractFloatingView.TYPE_REBIND_SAFE);
-        dispatchDeviceProfileChanged();
-
-        reapplyUi();
-    }
-
-    /**
-     * Initialize/update the device profile.
-     */
-    private void initDeviceProfile() {
-        mDeviceProfile = createDeviceProfile();
-        onDeviceProfileInitiated();
-    }
-
-    /**
-     * Generate the device profile to use in this activity.
-     * @return device profile
-     */
-    protected DeviceProfile createDeviceProfile() {
-        DeviceProfile dp = InvariantDeviceProfile.INSTANCE.get(this).getDeviceProfile(this);
-
-        // In case we are reusing IDP, create a copy so that we don't conflict with Launcher
-        // activity.
-        return dp.copy(this);
-    }
-
-
-    @Override
-    protected void onStop() {
-        super.onStop();
-
-        // Workaround for b/78520668, explicitly trim memory once UI is hidden
-        onTrimMemory(TRIM_MEMORY_UI_HIDDEN);
-    }
-
-    @Override
-    public void onEnterAnimationComplete() {
-        super.onEnterAnimationComplete();
-        // After the transition to home, enable the high-res thumbnail loader if it wasn't enabled
-        // as a part of quickstep, so that high-res thumbnails can load the next time we enter
-        // overview
-        RecentsModel.INSTANCE.get(this).getThumbnailCache()
-                .getHighResLoadingState().setVisible(true);
-    }
-
-    @Override
-    public void onTrimMemory(int level) {
-        super.onTrimMemory(level);
-        RecentsModel.INSTANCE.get(this).onTrimMemory(level);
-    }
-
-    @Override
-    protected void onNewIntent(Intent intent) {
-        super.onNewIntent(intent);
-        ACTIVITY_TRACKER.handleNewIntent(this, intent);
-    }
-
-    @Override
-    protected void onDestroy() {
-        super.onDestroy();
-        ACTIVITY_TRACKER.onActivityDestroyed(this);
-    }
-
-    @Override
-    public void onBackPressed() {
-        // TODO: Launch the task we came from
-        startHome();
-    }
-
-    public void startHome() {
-        startActivity(new Intent(Intent.ACTION_MAIN)
-                .addCategory(Intent.CATEGORY_HOME)
-                .setFlags(Intent.FLAG_ACTIVITY_NEW_TASK));
-    }
-
-    @Override
-    public void dump(String prefix, FileDescriptor fd, PrintWriter writer, String[] args) {
-        super.dump(prefix, fd, writer, args);
-        writer.println(prefix + "Misc:");
-        dumpMisc(prefix + "\t", writer);
-    }
-}

quickstep/src/com/android/quickstep/GestureState.java

@@ -110,10 +110,6 @@ public class GestureState implements RecentsAnimationCallbacks.RecentsAnimationL
     public static final int STATE_RECENTS_SCROLLING_FINISHED =
             getFlagForIndex("STATE_RECENTS_SCROLLING_FINISHED");
 
-    // Called when the new task appeared from quick switching.
-    public static final int STATE_TASK_APPEARED_DURING_SWITCH =
-            getFlagForIndex("STATE_TASK_APPEARED_DURING_SWITCH");
-
     // Needed to interact with the current activity
     private final Intent mHomeIntent;
     private final Intent mOverviewIntent;
@@ -123,9 +119,8 @@ public class GestureState implements RecentsAnimationCallbacks.RecentsAnimationL
 
     private ActivityManager.RunningTaskInfo mRunningTask;
     private GestureEndTarget mEndTarget;
-    private RemoteAnimationTargetCompat mAnimationTarget;
+    private RemoteAnimationTargetCompat mLastAppearedTaskTarget;
-    // TODO: This can be removed once we stop finishing the animation when starting a new task
+    private int mLastStartedTaskId = -1;
-    private int mFinishingRecentsAnimationTaskId = -1;
 
     public GestureState(OverviewComponentObserver componentObserver, int gestureId) {
         mHomeIntent = componentObserver.getHomeIntent();
@@ -143,7 +138,8 @@ public class GestureState implements RecentsAnimationCallbacks.RecentsAnimationL
         mGestureId = other.mGestureId;
         mRunningTask = other.mRunningTask;
         mEndTarget = other.mEndTarget;
-        mFinishingRecentsAnimationTaskId = other.mFinishingRecentsAnimationTaskId;
+        mLastAppearedTaskTarget = other.mLastAppearedTaskTarget;
+        mLastStartedTaskId = other.mLastStartedTaskId;
     }
 
     public GestureState() {
@@ -225,6 +221,35 @@ public class GestureState implements RecentsAnimationCallbacks.RecentsAnimationL
         mRunningTask = runningTask;
     }
 
+    /**
+     * Updates the last task that appeared during this gesture.
+     */
+    public void updateLastAppearedTaskTarget(RemoteAnimationTargetCompat lastAppearedTaskTarget) {
+        mLastAppearedTaskTarget = lastAppearedTaskTarget;
+    }
+
+    /**
+     * @return The id of the task that appeared during this gesture.
+     */
+    public int getLastAppearedTaskId() {
+        return mLastAppearedTaskTarget != null ? mLastAppearedTaskTarget.taskId : -1;
+    }
+
+    /**
+     * Updates the last task that we started via startActivityFromRecents() during this gesture.
+     */
+    public void updateLastStartedTaskId(int lastStartedTaskId) {
+        mLastStartedTaskId = lastStartedTaskId;
+    }
+
+    /**
+     * @return The id of the task that was most recently started during this gesture, or -1 if
+     * no task has been started yet (i.e. we haven't settled on a new task).
+     */
+    public int getLastStartedTaskId() {
+        return mLastStartedTaskId;
+    }
+
     /**
      * @return the end target for this gesture (if known).
      */
@@ -232,14 +257,6 @@ public class GestureState implements RecentsAnimationCallbacks.RecentsAnimationL
         return mEndTarget;
     }
 
-    public void setAnimationTarget(RemoteAnimationTargetCompat target) {
-        mAnimationTarget = target;
-    }
-
-    public RemoteAnimationTargetCompat getAnimationTarget() {
-        return mAnimationTarget;
-    }
-
     /**
      * Sets the end target of this gesture and immediately notifies the state changes.
      */
@@ -259,30 +276,9 @@ public class GestureState implements RecentsAnimationCallbacks.RecentsAnimationL
         }
     }
 
-    /**
-     * @return the id for the task that was about to be launched following the finish of the recents
-     * animation.  Only defined between when the finish-recents call was made and the launch
-     * activity call is made.
-     */
-    public int getFinishingRecentsAnimationTaskId() {
-        return mFinishingRecentsAnimationTaskId;
-    }
-
-    /**
-     * Sets the id for the task will be launched after the recents animation is finished. Once the
-     * animation has finished then the id will be reset to -1.
-     */
-    public void setFinishingRecentsAnimationTaskId(int taskId) {
-        mFinishingRecentsAnimationTaskId = taskId;
-        mStateCallback.runOnceAtState(STATE_RECENTS_ANIMATION_FINISHED, () -> {
-            mFinishingRecentsAnimationTaskId = -1;
-        });
-    }
-
     /**
      * @return whether the current gesture is still running a recents animation to a state in the
      *         Launcher or Recents activity.
-     * Updates the running task for the gesture to be the given {@param runningTask}.
      */
     public boolean isRunningAnimationToLauncher() {
         return isRecentsAnimationRunning() && mEndTarget != null && mEndTarget.isLauncher;
@@ -314,18 +310,13 @@ public class GestureState implements RecentsAnimationCallbacks.RecentsAnimationL
         mStateCallback.setState(STATE_RECENTS_ANIMATION_ENDED);
     }
 
-    @Override
-    public void onTaskAppeared(RemoteAnimationTargetCompat app) {
-        mAnimationTarget = app;
-        mStateCallback.setState(STATE_TASK_APPEARED_DURING_SWITCH);
-    }
-
     public void dump(PrintWriter pw) {
         pw.println("GestureState:");
         pw.println("  gestureID=" + mGestureId);
         pw.println("  runningTask=" + mRunningTask);
         pw.println("  endTarget=" + mEndTarget);
-        pw.println("  finishingRecentsAnimationTaskId=" + mFinishingRecentsAnimationTaskId);
+        pw.println("  lastAppearedTaskTarget=" + mLastAppearedTaskTarget);
+        pw.println("  lastStartedTaskId=" + mLastStartedTaskId);
         pw.println("  isRecentsAnimationRunning=" + isRecentsAnimationRunning());
     }
 }

quickstep/src/com/android/quickstep/RecentTasksList.java

@@ -154,8 +154,7 @@ public class RecentTasksList extends TaskStackChangeListener {
      * Loads and creates a list of all the recent tasks.
      */
     @VisibleForTesting
-    ArrayList<Task> loadTasksInBackground(int numTasks,
+    ArrayList<Task> loadTasksInBackground(int numTasks, boolean loadKeysOnly) {
-            boolean loadKeysOnly) {
         int currentUserId = Process.myUserHandle().getIdentifier();
         ArrayList<Task> allTasks = new ArrayList<>();
         List<ActivityManager.RecentTaskInfo> rawTasks =
@@ -174,9 +173,7 @@ public class RecentTasksList extends TaskStackChangeListener {
             }
         };
 
-        int taskCount = rawTasks.size();
+        for (ActivityManager.RecentTaskInfo rawTask : rawTasks) {
-        for (int i = 0; i < taskCount; i++) {
-            ActivityManager.RecentTaskInfo rawTask = rawTasks.get(i);
             Task.TaskKey taskKey = new Task.TaskKey(rawTask);
             Task task;
             if (!loadKeysOnly) {

quickstep/src/com/android/quickstep/RecentsAnimationCallbacks.java

@@ -159,6 +159,6 @@ public class RecentsAnimationCallbacks implements
         /**
          * Callback made when a task started from the recents is ready for an app transition.
          */
-        default void onTaskAppeared(RemoteAnimationTargetCompat app) {}
+        default void onTaskAppeared(RemoteAnimationTargetCompat appearedTaskTarget) {}
     }
 }

quickstep/src/com/android/quickstep/TaskAnimationManager.java

@@ -18,6 +18,7 @@ package com.android.quickstep;
 import static com.android.launcher3.util.Executors.MAIN_EXECUTOR;
 import static com.android.launcher3.util.Executors.UI_HELPER_EXECUTOR;
 import static com.android.quickstep.GestureState.STATE_RECENTS_ANIMATION_INITIALIZED;
+import static com.android.quickstep.GestureState.STATE_RECENTS_ANIMATION_STARTED;
 
 import android.content.Intent;
 import android.util.Log;
@@ -28,6 +29,7 @@ import com.android.launcher3.Utilities;
 import com.android.launcher3.config.FeatureFlags;
 import com.android.systemui.shared.recents.model.ThumbnailData;
 import com.android.systemui.shared.system.ActivityManagerWrapper;
+import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
 
 public class TaskAnimationManager implements RecentsAnimationCallbacks.RecentsAnimationListener {
 
@@ -36,6 +38,7 @@ public class TaskAnimationManager implements RecentsAnimationCallbacks.RecentsAn
     private RecentsAnimationTargets mTargets;
     // Temporary until we can hook into gesture state events
     private GestureState mLastGestureState;
+    private RemoteAnimationTargetCompat mLastAppearedTaskTarget;
 
     /**
      * Preloads the recents animation.
@@ -79,6 +82,8 @@ public class TaskAnimationManager implements RecentsAnimationCallbacks.RecentsAn
                 }
                 mController = controller;
                 mTargets = targets;
+                mLastAppearedTaskTarget = mTargets.findTask(mLastGestureState.getRunningTaskId());
+                mLastGestureState.updateLastAppearedTaskTarget(mLastAppearedTaskTarget);
             }
 
             @Override
@@ -96,6 +101,20 @@ public class TaskAnimationManager implements RecentsAnimationCallbacks.RecentsAn
             public void onRecentsAnimationFinished(RecentsAnimationController controller) {
                 cleanUpRecentsAnimation(null /* canceledThumbnail */);
             }
+
+            @Override
+            public void onTaskAppeared(RemoteAnimationTargetCompat appearedTaskTarget) {
+                if (mController != null) {
+                    if (mLastAppearedTaskTarget == null
+                            || appearedTaskTarget.taskId != mLastAppearedTaskTarget.taskId) {
+                        if (mLastAppearedTaskTarget != null) {
+                            mController.removeTaskTarget(mLastAppearedTaskTarget);
+                        }
+                        mLastAppearedTaskTarget = appearedTaskTarget;
+                        mLastGestureState.updateLastAppearedTaskTarget(mLastAppearedTaskTarget);
+                    }
+                }
+            }
         });
         mCallbacks.addListener(gestureState);
         mCallbacks.addListener(listener);
@@ -112,6 +131,9 @@ public class TaskAnimationManager implements RecentsAnimationCallbacks.RecentsAn
         mCallbacks.removeListener(mLastGestureState);
         mLastGestureState = gestureState;
         mCallbacks.addListener(gestureState);
+        gestureState.setState(STATE_RECENTS_ANIMATION_INITIALIZED
+                | STATE_RECENTS_ANIMATION_STARTED);
+        gestureState.updateLastAppearedTaskTarget(mLastAppearedTaskTarget);
         return mCallbacks;
     }
 
@@ -171,6 +193,7 @@ public class TaskAnimationManager implements RecentsAnimationCallbacks.RecentsAn
         mCallbacks = null;
         mTargets = null;
         mLastGestureState = null;
+        mLastAppearedTaskTarget = null;
     }
 
     public void dump() {

quickstep/src/com/android/quickstep/interaction/BackGestureTutorialController.java

@@ -68,7 +68,7 @@ final class BackGestureTutorialController extends TutorialController {
     @Override
     Integer getActionButtonStringId() {
         if (mTutorialType == BACK_NAVIGATION_COMPLETE) {
-            return R.string.gesture_tutorial_action_button_label;
+            return R.string.gesture_tutorial_action_button_label_done;
         }
         return null;
     }
@@ -76,7 +76,7 @@ final class BackGestureTutorialController extends TutorialController {
     @Override
     Integer getActionTextButtonStringId() {
         if (mTutorialType == BACK_NAVIGATION_COMPLETE) {
-            return R.string.gesture_tutorial_action_text_button_label;
+            return R.string.gesture_tutorial_action_button_label_settings;
         }
         return null;
     }
@@ -89,7 +89,6 @@ final class BackGestureTutorialController extends TutorialController {
     @Override
     void onActionTextButtonClicked(View button) {
         mTutorialFragment.startSystemNavigationSetting();
-        mTutorialFragment.closeTutorial();
     }
 
     @Override

quickstep/src/com/android/quickstep/interaction/HomeGestureTutorialController.java

@@ -60,7 +60,7 @@ final class HomeGestureTutorialController extends TutorialController {
     @Override
     Integer getActionButtonStringId() {
         if (mTutorialType == HOME_NAVIGATION_COMPLETE) {
-            return R.string.gesture_tutorial_action_button_label;
+            return R.string.gesture_tutorial_action_button_label_done;
         }
         return null;
     }

quickstep/src/com/android/quickstep/interaction/TutorialFragment.java

@@ -15,7 +15,6 @@
  */
 package com.android.quickstep.interaction;
 
-import android.content.ActivityNotFoundException;
 import android.content.Intent;
 import android.graphics.Insets;
 import android.os.Bundle;
@@ -35,8 +34,6 @@ import androidx.fragment.app.FragmentActivity;
 import com.android.launcher3.R;
 import com.android.quickstep.interaction.TutorialController.TutorialType;
 
-import java.net.URISyntaxException;
-
 abstract class TutorialFragment extends Fragment implements OnTouchListener {
 
     private static final String LOG_TAG = "TutorialFragment";
@@ -182,14 +179,6 @@ abstract class TutorialFragment extends Fragment implements OnTouchListener {
     }
 
     void startSystemNavigationSetting() {
-        try {
+        startActivity(new Intent("com.android.settings.GESTURE_NAVIGATION_SETTINGS"));
-            startActivityForResult(
-                    Intent.parseUri(SYSTEM_NAVIGATION_SETTING_INTENT, /* flags= */ 0),
-                    /* requestCode= */ 0);
-        } catch (URISyntaxException e) {
-            Log.e(LOG_TAG, "The launch Intent Uri is wrong syntax: " + e);
-        } catch (ActivityNotFoundException e) {
-            Log.e(LOG_TAG, "The launch Activity not found: " + e);
-        }
     }
 }

quickstep/src/com/android/quickstep/logging/StatsLogCompatManager.java

@@ -16,17 +16,17 @@
 
 package com.android.quickstep.logging;
 
-import static android.stats.launcher.nano.Launcher.ALLAPPS;
+import static com.android.launcher3.logger.LauncherAtom.ContainerInfo.ContainerCase.FOLDER;
-import static android.stats.launcher.nano.Launcher.BACKGROUND;
+import static com.android.launcher3.logger.LauncherAtom.ItemInfo.ItemCase.WIDGET;
-import static android.stats.launcher.nano.Launcher.HOME;
-import static android.stats.launcher.nano.Launcher.OVERVIEW;
 
 import android.content.Context;
+import android.util.Log;
 
 import com.android.launcher3.LauncherAppState;
+import com.android.launcher3.Utilities;
 import com.android.launcher3.logger.LauncherAtom;
+import com.android.launcher3.logging.InstanceId;
 import com.android.launcher3.logging.StatsLogManager;
-import com.android.launcher3.logging.StatsLogUtils;
 import com.android.launcher3.model.AllAppsList;
 import com.android.launcher3.model.BaseModelUpdateTask;
 import com.android.launcher3.model.BgDataModel;
@@ -34,11 +34,13 @@ import com.android.launcher3.model.data.FolderInfo;
 import com.android.launcher3.model.data.ItemInfo;
 import com.android.launcher3.model.data.LauncherAppWidgetInfo;
 import com.android.launcher3.util.IntSparseArrayMap;
+import com.android.launcher3.util.LogConfig;
+import com.android.systemui.shared.system.SysUiStatsLog;
 
 import java.util.ArrayList;
 
 /**
- * This method calls the StatsLog hidden method until they are made available public.
+ * This class calls StatsLog compile time generated methods.
  *
  * To see if the logs are properly sent to statsd, execute following command.
  * $ adb root && adb shell statsd
@@ -47,29 +49,69 @@ import java.util.ArrayList;
  */
 public class StatsLogCompatManager extends StatsLogManager {
 
-    private static final int SUPPORTED_TARGET_DEPTH = 2;
     private static final String TAG = "StatsLog";
-    private static final boolean DEBUG = false;
+    private static final boolean IS_VERBOSE = Utilities.isPropertyEnabled(LogConfig.STATSLOG);
+
     private static Context sContext;
 
+    private static final int DEFAULT_WIDGET_SPAN_XY = 1;
+    private static final int DEFAULT_WORKSPACE_GRID_XY = -1;
+    private static final int DEFAULT_PAGE_INDEX = -2;
+    private static final InstanceId DEFAULT_INSTANCE_ID = InstanceId.fakeInstanceId(0);
+
     public StatsLogCompatManager(Context context) {
         sContext = context;
     }
 
+    /**
+     * Logs an event and accompanying {@link ItemInfo}
+     */
+    public void log(LauncherEvent event, LauncherAtom.ItemInfo itemInfo) {
+        log(event, DEFAULT_INSTANCE_ID, itemInfo);
+    }
+
+    /**
+     * Logs an event and accompanying {@link LauncherAtom.ItemInfo}
+     */
     @Override
-    public void verify() {
+    public void log(LauncherEvent event, InstanceId instanceId, LauncherAtom.ItemInfo itemInfo) {
-        if (!(StatsLogUtils.LAUNCHER_STATE_ALLAPPS == ALLAPPS
+        if (IS_VERBOSE) {
-                && StatsLogUtils.LAUNCHER_STATE_BACKGROUND == BACKGROUND
+            Log.d(TAG, String.format("\n%s\n%s", event.name(), itemInfo));
-                && StatsLogUtils.LAUNCHER_STATE_OVERVIEW == OVERVIEW
-                && StatsLogUtils.LAUNCHER_STATE_HOME == HOME)) {
-            throw new IllegalStateException(
-                    "StatsLogUtil constants doesn't match enums in launcher.proto");
         }
+        if (!Utilities.ATLEAST_R) {
+            return;
+        }
+        SysUiStatsLog.write(SysUiStatsLog.LAUNCHER_EVENT,
+                SysUiStatsLog.LAUNCHER_UICHANGED__ACTION__DEFAULT_ACTION /* deprecated */,
+                SysUiStatsLog.LAUNCHER_UICHANGED__DST_STATE__HOME /* TODO */,
+                SysUiStatsLog.LAUNCHER_UICHANGED__DST_STATE__BACKGROUND /* TODO */,
+                null /* launcher extensions, deprecated */,
+                false /* quickstep_enabled, deprecated */,
+                event.getId() /* event_id */,
+                itemInfo.getItemCase().getNumber() /* target_id */,
+                instanceId.getId() /* instance_id TODO */,
+                0 /* uid TODO */,
+                getPackageName(itemInfo) /* package_name */,
+                getComponentName(itemInfo) /* component_name */,
+                getGridX(itemInfo, false) /* grid_x */,
+                getGridY(itemInfo, false) /* grid_y */,
+                getPageId(itemInfo, false) /* page_id */,
+                getGridX(itemInfo, true) /* grid_x_parent */,
+                getGridY(itemInfo, true) /* grid_y_parent */,
+                getPageId(itemInfo, true) /* page_id_parent */,
+                getHierarchy(itemInfo) /* hierarchy */,
+                itemInfo.getIsWork() /* is_work_profile */,
+                itemInfo.getRank() /* rank */,
+                0 /* fromState */,
+                0 /* toState */,
+                null /* edittext */,
+                0 /* cardinality */);
     }
 
     /**
      * Logs the workspace layout information on the model thread.
      */
+    @Override
     public void logSnapshot() {
         LauncherAppState.getInstance(sContext).getModel().enqueueModelUpdateTask(
                 new SnapshotWorker());
@@ -84,18 +126,160 @@ public class StatsLogCompatManager extends StatsLogManager {
 
             for (ItemInfo info : workspaceItems) {
                 LauncherAtom.ItemInfo atomInfo = info.buildProto(null);
-                // call StatsLog method
+                writeSnapshot(atomInfo);
             }
             for (FolderInfo fInfo : folders) {
                 for (ItemInfo info : fInfo.contents) {
                     LauncherAtom.ItemInfo atomInfo = info.buildProto(fInfo);
-                    // call StatsLog method
+                    writeSnapshot(atomInfo);
                 }
             }
             for (ItemInfo info : appWidgets) {
                 LauncherAtom.ItemInfo atomInfo = info.buildProto(null);
-                // call StatsLog method
+                writeSnapshot(atomInfo);
             }
         }
     }
+    private static void writeSnapshot(LauncherAtom.ItemInfo itemInfo) {
+        if (IS_VERBOSE) {
+            Log.d(TAG, "\nwriteSnapshot:" + itemInfo);
+        }
+        if (!Utilities.ATLEAST_R) {
+            return;
+        }
+        SysUiStatsLog.write(SysUiStatsLog.LAUNCHER_SNAPSHOT,
+                0 /* event_id */,
+                itemInfo.getItemCase().getNumber() /* target_id */,
+                0 /* instance_id */,
+                0 /* uid */,
+                getPackageName(itemInfo) /* package_name */,
+                getComponentName(itemInfo) /* component_name */,
+                getGridX(itemInfo, false) /* grid_x */,
+                getGridY(itemInfo, false) /* grid_y */,
+                getPageId(itemInfo, false) /* page_id */,
+                getGridX(itemInfo, true) /* grid_x_parent */,
+                getGridY(itemInfo, true) /* grid_y_parent */,
+                getPageId(itemInfo, true) /* page_id_parent */,
+                getHierarchy(itemInfo) /* hierarchy */,
+                itemInfo.getIsWork() /* is_work_profile */,
+                0 /* origin TODO */,
+                0 /* cardinality */,
+                getSpanX(itemInfo),
+                getSpanY(itemInfo));
+    }
+
+    private static int getSpanX(LauncherAtom.ItemInfo atomInfo) {
+        if (atomInfo.getItemCase() != WIDGET) {
+            return DEFAULT_WIDGET_SPAN_XY;
+        }
+        return atomInfo.getWidget().getSpanX();
+    }
+
+    private static int getSpanY(LauncherAtom.ItemInfo atomInfo) {
+        if (atomInfo.getItemCase() != WIDGET) {
+            return DEFAULT_WIDGET_SPAN_XY;
+        }
+        return atomInfo.getWidget().getSpanY();
+    }
+
+    private static String getPackageName(LauncherAtom.ItemInfo atomInfo) {
+        switch (atomInfo.getItemCase()) {
+            case APPLICATION:
+                return atomInfo.getApplication().getPackageName();
+            case SHORTCUT:
+                return atomInfo.getShortcut().getShortcutName();
+            case WIDGET:
+                return atomInfo.getWidget().getPackageName();
+            case TASK:
+                return atomInfo.getTask().getPackageName();
+            default:
+                return null;
+        }
+    }
+
+    private static String getComponentName(LauncherAtom.ItemInfo atomInfo) {
+        switch (atomInfo.getItemCase()) {
+            case APPLICATION:
+                return atomInfo.getApplication().getComponentName();
+            case SHORTCUT:
+                return atomInfo.getShortcut().getShortcutName();
+            case WIDGET:
+                return atomInfo.getWidget().getComponentName();
+            case TASK:
+                return atomInfo.getTask().getComponentName();
+            default:
+                return null;
+        }
+    }
+
+    private static int getGridX(LauncherAtom.ItemInfo info, boolean parent) {
+        switch (info.getContainerInfo().getContainerCase()) {
+            case WORKSPACE:
+                if (parent) {
+                    return DEFAULT_WORKSPACE_GRID_XY;
+                } else {
+                    return info.getContainerInfo().getWorkspace().getGridX();
+                }
+            case FOLDER:
+                if (parent) {
+                    switch (info.getContainerInfo().getFolder().getParentContainerCase()) {
+                        case WORKSPACE:
+                            return info.getContainerInfo().getFolder().getWorkspace().getGridX();
+                        default:
+                            return DEFAULT_WORKSPACE_GRID_XY;
+                    }
+                } else {
+                    return info.getContainerInfo().getFolder().getGridX();
+                }
+            default:
+                return DEFAULT_WORKSPACE_GRID_XY;
+        }
+    }
+
+    private static int getGridY(LauncherAtom.ItemInfo info, boolean parent) {
+        switch (info.getContainerInfo().getContainerCase()) {
+            case WORKSPACE:
+                if (parent) {
+                    return DEFAULT_WORKSPACE_GRID_XY;
+                } else {
+                    return info.getContainerInfo().getWorkspace().getGridY();
+                }
+            case FOLDER:
+                if (parent) {
+                    switch (info.getContainerInfo().getFolder().getParentContainerCase()) {
+                        case WORKSPACE:
+                            return info.getContainerInfo().getFolder().getWorkspace().getGridY();
+                        default:
+                            return DEFAULT_WORKSPACE_GRID_XY;
+                    }
+                } else {
+                    return info.getContainerInfo().getFolder().getGridY();
+                }
+            default:
+                return DEFAULT_WORKSPACE_GRID_XY;
+        }
+    }
+
+    private static int getPageId(LauncherAtom.ItemInfo info, boolean parent) {
+        switch (info.getContainerInfo().getContainerCase()) {
+            case HOTSEAT:
+                return info.getContainerInfo().getHotseat().getIndex();
+            case WORKSPACE:
+                return info.getContainerInfo().getWorkspace().getPageIndex();
+            default:
+                return DEFAULT_PAGE_INDEX;
+        }
+    }
+
+    /**
+     *
+     */
+    private static int getHierarchy(LauncherAtom.ItemInfo info) {
+        // TODO
+        if (info.getContainerInfo().getContainerCase() == FOLDER) {
+            return info.getContainerInfo().getFolder().getParentContainerCase().getNumber() + 100;
+        } else {
+            return info.getContainerInfo().getContainerCase().getNumber();
+        }
+    }
 }

quickstep/src/com/android/quickstep/util/LayoutUtils.java

@@ -21,6 +21,8 @@ import static com.android.quickstep.util.WindowSizeStrategy.LAUNCHER_ACTIVITY_SI
 
 import android.content.Context;
 import android.graphics.Rect;
+import android.view.View;
+import android.view.ViewGroup;
 
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.R;
@@ -66,4 +68,21 @@ public class LayoutUtils {
             return srcHeight / targetHeight;
         }
     }
+
+    /**
+     * Recursively sets view and all children enabled/disabled.
+     * @param viewGroup Top most parent view to change.
+     * @param enabled True = enable, False = disable.
+     */
+    public static void setViewEnabled(ViewGroup viewGroup, boolean enabled) {
+        viewGroup.setEnabled(enabled);
+        for (int i = 0; i < viewGroup.getChildCount(); i++) {
+            View child = viewGroup.getChildAt(i);
+            if (child instanceof ViewGroup) {
+                setViewEnabled((ViewGroup) child, enabled);
+            } else {
+                child.setEnabled(enabled);
+            }
+        }
+    }
 }

quickstep/src/com/android/quickstep/util/MotionPauseDetector.java

@@ -19,11 +19,13 @@ import static com.android.launcher3.config.FeatureFlags.ENABLE_LSQ_VELOCITY_PROV
 
 import android.content.Context;
 import android.content.res.Resources;
+import android.util.Log;
 import android.view.MotionEvent;
 
 import com.android.launcher3.Alarm;
 import com.android.launcher3.R;
 import com.android.launcher3.compat.AccessibilityManagerCompat;
+import com.android.launcher3.testing.TestProtocol;
 
 /**
  * Given positions along x- or y-axis, tracks velocity and acceleration and determines when there is
@@ -84,6 +86,9 @@ public class MotionPauseDetector {
         mSpeedSlow = res.getDimension(R.dimen.motion_pause_detector_speed_slow);
         mSpeedSomewhatFast = res.getDimension(R.dimen.motion_pause_detector_speed_somewhat_fast);
         mSpeedFast = res.getDimension(R.dimen.motion_pause_detector_speed_fast);
+        if (TestProtocol.sDebugTracing) {
+            Log.d(TestProtocol.PAUSE_NOT_DETECTED, "creating alarm");
+        }
         mForcePauseTimeout = new Alarm();
         mForcePauseTimeout.setOnAlarmListener(alarm -> updatePaused(true /* isPaused */));
         mMakePauseHarderToTrigger = makePauseHarderToTrigger;
@@ -120,6 +125,9 @@ public class MotionPauseDetector {
      * @param pointerIndex Index for the pointer being tracked in the motion event
      */
     public void addPosition(MotionEvent ev, int pointerIndex) {
+        if (TestProtocol.sDebugTracing) {
+            Log.d(TestProtocol.PAUSE_NOT_DETECTED, "setting alarm");
+        }
         mForcePauseTimeout.setAlarm(mMakePauseHarderToTrigger
                 ? HARDER_TRIGGER_TIMEOUT
                 : FORCE_PAUSE_TIMEOUT);
@@ -167,6 +175,9 @@ public class MotionPauseDetector {
     }
 
     private void updatePaused(boolean isPaused) {
+        if (TestProtocol.sDebugTracing) {
+            Log.d(TestProtocol.PAUSE_NOT_DETECTED, "updatePaused: " + isPaused);
+        }
         if (mDisallowPause) {
             isPaused = false;
         }
@@ -188,6 +199,9 @@ public class MotionPauseDetector {
         setOnMotionPauseListener(null);
         mIsPaused = mHasEverBeenPaused = false;
         mSlowStartTime = 0;
+        if (TestProtocol.sDebugTracing) {
+            Log.d(TestProtocol.PAUSE_NOT_DETECTED, "canceling alarm");
+        }
         mForcePauseTimeout.cancelAlarm();
     }
 

quickstep/src/com/android/quickstep/util/QuickstepOnboardingPrefs.java

@@ -25,8 +25,8 @@ import android.content.SharedPreferences;
 
 import com.android.launcher3.BaseQuickstepLauncher;
 import com.android.launcher3.LauncherState;
-import com.android.launcher3.LauncherStateManager;
+import com.android.launcher3.statemanager.StateManager;
-import com.android.launcher3.LauncherStateManager.StateListener;
+import com.android.launcher3.statemanager.StateManager.StateListener;
 import com.android.launcher3.util.OnboardingPrefs;
 import com.android.quickstep.SysUINavigationMode;
 
@@ -35,23 +35,23 @@ import com.android.quickstep.SysUINavigationMode;
  */
 public class QuickstepOnboardingPrefs extends OnboardingPrefs<BaseQuickstepLauncher> {
 
-    public QuickstepOnboardingPrefs(BaseQuickstepLauncher launcher, SharedPreferences sharedPrefs,
+    public QuickstepOnboardingPrefs(BaseQuickstepLauncher launcher, SharedPreferences sharedPrefs) {
-            LauncherStateManager stateManager) {
+        super(launcher, sharedPrefs);
-        super(launcher, sharedPrefs, stateManager);
 
+        StateManager<LauncherState> stateManager = launcher.getStateManager();
         if (!getBoolean(HOME_BOUNCE_SEEN)) {
-            mStateManager.addStateListener(new StateListener() {
+            stateManager.addStateListener(new StateListener<LauncherState>() {
                 @Override
                 public void onStateTransitionComplete(LauncherState finalState) {
                     boolean swipeUpEnabled = SysUINavigationMode.INSTANCE
                             .get(mLauncher).getMode().hasGestures;
-                    LauncherState prevState = mStateManager.getLastState();
+                    LauncherState prevState = stateManager.getLastState();
 
                     if (((swipeUpEnabled && finalState == OVERVIEW) || (!swipeUpEnabled
                             && finalState == ALL_APPS && prevState == NORMAL) ||
                             hasReachedMaxCount(HOME_BOUNCE_COUNT))) {
                         mSharedPrefs.edit().putBoolean(HOME_BOUNCE_SEEN, true).apply();
-                        mStateManager.removeStateListener(this);
+                        stateManager.removeStateListener(this);
                     }
                 }
             });
@@ -65,27 +65,27 @@ public class QuickstepOnboardingPrefs extends OnboardingPrefs<BaseQuickstepLaunc
             mSharedPrefs.edit().putBoolean(SHELF_BOUNCE_SEEN, shelfBounceSeen).apply();
         }
         if (!shelfBounceSeen) {
-            mStateManager.addStateListener(new StateListener() {
+            stateManager.addStateListener(new StateListener<LauncherState>() {
                 @Override
                 public void onStateTransitionComplete(LauncherState finalState) {
-                    LauncherState prevState = mStateManager.getLastState();
+                    LauncherState prevState = stateManager.getLastState();
 
                     if ((finalState == ALL_APPS && prevState == OVERVIEW) ||
                             hasReachedMaxCount(SHELF_BOUNCE_COUNT)) {
                         mSharedPrefs.edit().putBoolean(SHELF_BOUNCE_SEEN, true).apply();
-                        mStateManager.removeStateListener(this);
+                        stateManager.removeStateListener(this);
                     }
                 }
             });
         }
 
         if (!hasReachedMaxCount(ALL_APPS_COUNT)) {
-            mStateManager.addStateListener(new StateListener() {
+            stateManager.addStateListener(new StateListener<LauncherState>() {
                 @Override
                 public void onStateTransitionComplete(LauncherState finalState) {
                     if (finalState == ALL_APPS) {
                         if (incrementEventCount(ALL_APPS_COUNT)) {
-                            mStateManager.removeStateListener(this);
+                            stateManager.removeStateListener(this);
                             mLauncher.getScrimView().updateDragHandleVisibility();
                         }
                     }

quickstep/src/com/android/quickstep/util/RecentsOrientedState.java

@@ -23,6 +23,7 @@ import static android.view.Surface.ROTATION_180;
 import static android.view.Surface.ROTATION_270;
 import static android.view.Surface.ROTATION_90;
 
+import static com.android.launcher3.logging.LoggerUtils.extractObjectNameAndAddress;
 import static com.android.launcher3.states.RotationHelper.ALLOW_ROTATION_PREFERENCE_KEY;
 import static com.android.launcher3.util.Executors.UI_HELPER_EXECUTOR;
 
@@ -36,7 +37,6 @@ import android.database.ContentObserver;
 import android.graphics.Matrix;
 import android.graphics.PointF;
 import android.graphics.Rect;
-import android.graphics.RectF;
 import android.os.Handler;
 import android.provider.Settings;
 import android.util.Log;
@@ -51,6 +51,7 @@ import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.testing.TestProtocol;
 import com.android.launcher3.touch.PagedOrientationHandler;
+import com.android.launcher3.util.WindowBounds;
 
 import java.lang.annotation.Retention;
 import java.util.function.IntConsumer;
@@ -84,7 +85,7 @@ public final class RecentsOrientedState implements SharedPreferences.OnSharedPre
 
     private @SurfaceRotation int mTouchRotation = ROTATION_0;
     private @SurfaceRotation int mDisplayRotation = ROTATION_0;
-    private @SurfaceRotation int mLauncherRotation = Surface.ROTATION_0;
+    private @SurfaceRotation int mLauncherRotation = ROTATION_0;
 
     // Launcher activity supports multiple orientation, but fallback activity does not
     private static final int FLAG_MULTIPLE_ORIENTATION_SUPPORTED_BY_ACTIVITY = 1 << 0;
@@ -102,6 +103,8 @@ public final class RecentsOrientedState implements SharedPreferences.OnSharedPre
     private static final int FLAG_ROTATION_WATCHER_SUPPORTED = 1 << 6;
     // Whether to enable rotation watcher when multi-rotation is supported
     private static final int FLAG_ROTATION_WATCHER_ENABLED = 1 << 7;
+    // Enable home rotation for UI tests, ignoring home rotation value from prefs
+    private static final int FLAG_HOME_ROTATION_FORCE_ENABLED_FOR_TESTING = 1 << 8;
 
     private static final int MASK_MULTIPLE_ORIENTATION_SUPPORTED_BY_DEVICE =
             FLAG_MULTIPLE_ORIENTATION_SUPPORTED_BY_ACTIVITY
@@ -121,7 +124,6 @@ public final class RecentsOrientedState implements SharedPreferences.OnSharedPre
     private final WindowSizeStrategy mSizeStrategy;
 
     private final Matrix mTmpMatrix = new Matrix();
-    private final Matrix mTmpInverseMatrix = new Matrix();
 
     private int mFlags;
     private int mPreviousRotation = ROTATION_0;
@@ -163,6 +165,10 @@ public final class RecentsOrientedState implements SharedPreferences.OnSharedPre
         if (mOrientationListener.canDetectOrientation()) {
             mFlags |= FLAG_ROTATION_WATCHER_SUPPORTED;
         }
+
+        // initialize external flags
+        updateAutoRotateSetting();
+        updateHomeRotationSetting();
     }
 
     /**
@@ -181,13 +187,15 @@ public final class RecentsOrientedState implements SharedPreferences.OnSharedPre
      *         false otherwise
      */
     public boolean update(
-            @SurfaceRotation int touchRotation, @SurfaceRotation int displayRotation,
+            @SurfaceRotation int touchRotation, @SurfaceRotation int displayRotation) {
-            @SurfaceRotation int launcherRotation) {
         if (!isMultipleOrientationSupportedByDevice()) {
             return false;
         }
-        if (mDisplayRotation == displayRotation && mTouchRotation == touchRotation
+
-                && launcherRotation == mLauncherRotation) {
+        int launcherRotation = inferLauncherRotation(displayRotation);
+        if (mDisplayRotation == displayRotation
+                && mTouchRotation == touchRotation
+                && mLauncherRotation == launcherRotation) {
             return false;
         }
 
@@ -195,11 +203,10 @@ public final class RecentsOrientedState implements SharedPreferences.OnSharedPre
         mDisplayRotation = displayRotation;
         mTouchRotation = touchRotation;
 
-        if (canLauncherRotate() || mLauncherRotation == mTouchRotation) {
+        if (mLauncherRotation == mTouchRotation) {
-            // TODO(b/153476489) Need to determine when launcher is rotated
             mOrientationHandler = PagedOrientationHandler.HOME_ROTATED;
             if (DEBUG) {
-                Log.d(TAG, "Set Orientation Handler: " + mOrientationHandler);
+                Log.d(TAG, "current RecentsOrientedState: " + this);
             }
             return true;
         }
@@ -212,11 +219,20 @@ public final class RecentsOrientedState implements SharedPreferences.OnSharedPre
             mOrientationHandler = PagedOrientationHandler.PORTRAIT;
         }
         if (DEBUG) {
-            Log.d(TAG, "Set Orientation Handler: " + mOrientationHandler);
+            Log.d(TAG, "current RecentsOrientedState: " + this);
         }
         return true;
     }
 
+    @SurfaceRotation
+    private int inferLauncherRotation(@SurfaceRotation int displayRotation) {
+        if (!isMultipleOrientationSupportedByDevice() || isHomeRotationAllowed()) {
+            return displayRotation;
+        } else {
+            return ROTATION_0;
+        }
+    }
+
     private void setFlag(int mask, boolean enabled) {
         boolean wasRotationEnabled = !TestProtocol.sDisableSensorRotation
                 && mFlags == VALUE_ROTATION_WATCHER_ENABLED;
@@ -241,7 +257,9 @@ public final class RecentsOrientedState implements SharedPreferences.OnSharedPre
 
     @Override
     public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String s) {
-        updateHomeRotationSetting();
+        if (ALLOW_ROTATION_PREFERENCE_KEY.equals(s)) {
+            updateHomeRotationSetting();
+        }
     }
 
     private void updateAutoRotateSetting() {
@@ -255,23 +273,24 @@ public final class RecentsOrientedState implements SharedPreferences.OnSharedPre
     }
 
     /**
-     * Initializes aany system values and registers corresponding change listeners. It must be
+     * Initializes any system values and registers corresponding change listeners. It must be
-     * paired with {@link #destroy()} call
+     * paired with {@link #destroyListeners()} call
      */
-    public void init() {
+    public void initListeners() {
         if (isMultipleOrientationSupportedByDevice()) {
             mSharedPrefs.registerOnSharedPreferenceChangeListener(this);
             mContentResolver.registerContentObserver(
                     Settings.System.getUriFor(Settings.System.ACCELEROMETER_ROTATION),
                     false, mSystemAutoRotateObserver);
         }
-        initWithoutListeners();
+        updateAutoRotateSetting();
+        updateHomeRotationSetting();
     }
 
     /**
      * Unregisters any previously registered listeners.
      */
-    public void destroy() {
+    public void destroyListeners() {
         if (isMultipleOrientationSupportedByDevice()) {
             mSharedPrefs.unregisterOnSharedPreferenceChangeListener(this);
             mContentResolver.unregisterContentObserver(mSystemAutoRotateObserver);
@@ -279,13 +298,8 @@ public final class RecentsOrientedState implements SharedPreferences.OnSharedPre
         setRotationWatcherEnabled(false);
     }
 
-    /**
+    public void forceAllowRotationForTesting(boolean forceAllow) {
-     * Initializes the OrientationState without attaching any listeners. This can be used when
+        setFlag(FLAG_HOME_ROTATION_FORCE_ENABLED_FOR_TESTING, forceAllow);
-     * the object is short lived.
-     */
-    public void initWithoutListeners() {
-        updateAutoRotateSetting();
-        updateHomeRotationSetting();
     }
 
     @SurfaceRotation
@@ -310,7 +324,8 @@ public final class RecentsOrientedState implements SharedPreferences.OnSharedPre
 
     public boolean isHomeRotationAllowed() {
         return (mFlags & (FLAG_HOME_ROTATION_ALLOWED_IN_PREFS | FLAG_MULTIWINDOW_ROTATION_ALLOWED))
-                != 0;
+                != 0 ||
+                (mFlags & FLAG_HOME_ROTATION_FORCE_ENABLED_FOR_TESTING) != 0;
     }
 
     public boolean canLauncherRotate() {
@@ -347,7 +362,8 @@ public final class RecentsOrientedState implements SharedPreferences.OnSharedPre
         float fullHeight = dp.heightPx - insets.top - insets.bottom;
 
         if (dp.isMultiWindowMode) {
-            mSizeStrategy.getMultiWindowSize(mContext, dp, outPivot);
+            WindowBounds bounds = SplitScreenBounds.INSTANCE.getSecondaryWindowBounds(mContext);
+            outPivot.set(bounds.availableSize.x, bounds.availableSize.y);
         } else {
             outPivot.set(fullWidth, fullHeight);
         }
@@ -403,23 +419,6 @@ public final class RecentsOrientedState implements SharedPreferences.OnSharedPre
         */
     }
 
-    public void mapRectFromNormalOrientation(RectF src, int screenWidth, int screenHeight) {
-        mapRectFromRotation(mDisplayRotation, src, screenWidth, screenHeight);
-    }
-
-    public void mapRectFromRotation(int rotation, RectF src, int screenWidth, int screenHeight) {
-        mTmpMatrix.reset();
-        postDisplayRotation(rotation, screenWidth, screenHeight, mTmpMatrix);
-        mTmpMatrix.mapRect(src);
-    }
-
-    public void mapInverseRectFromNormalOrientation(RectF src, int screenWidth, int screenHeight) {
-        mTmpMatrix.reset();
-        postDisplayRotation(mDisplayRotation, screenWidth, screenHeight, mTmpMatrix);
-        mTmpMatrix.invert(mTmpInverseMatrix);
-        mTmpInverseMatrix.mapRect(src);
-    }
-
     @SurfaceRotation
     public static int getRotationForUserDegreesRotated(float degrees, int currentRotation) {
         if (degrees == ORIENTATION_UNKNOWN) {
@@ -440,9 +439,13 @@ public final class RecentsOrientedState implements SharedPreferences.OnSharedPre
                 if (degrees < (90 - threshold)) {
                     return ROTATION_0;
                 }
-                if (degrees > (90 + threshold)) {
+                if (degrees > (90 + threshold) && degrees < 180) {
                     return ROTATION_180;
                 }
+                // flip from seascape to landscape
+                if (degrees > (180 + threshold) && degrees < 360) {
+                    return ROTATION_90;
+                }
                 break;
             case ROTATION_180:
                 if (degrees < (180 - threshold)) {
@@ -453,12 +456,16 @@ public final class RecentsOrientedState implements SharedPreferences.OnSharedPre
                 }
                 break;
             case ROTATION_90:
-                if (degrees < (270 - threshold)) {
+                if (degrees < (270 - threshold) && degrees > 90) {
                     return ROTATION_180;
                 }
-                if (degrees > (270 + threshold)) {
+                if (degrees > (270 + threshold) && degrees < 360) {
                     return ROTATION_0;
                 }
+                // flip from landscape to seascape
+                if (degrees > threshold && degrees < 180) {
+                    return ROTATION_270;
+                }
                 break;
         }
 
@@ -506,13 +513,15 @@ public final class RecentsOrientedState implements SharedPreferences.OnSharedPre
     public String toString() {
         boolean systemRotationOn = (mFlags & FLAG_SYSTEM_ROTATION_ALLOWED) != 0;
         return "["
-                + "mDisplayRotation=" + mDisplayRotation
+                + "this=" + extractObjectNameAndAddress(super.toString())
+                + " mOrientationHandler=" +
+                    extractObjectNameAndAddress(mOrientationHandler.toString())
+                + " mDisplayRotation=" + mDisplayRotation
                 + " mTouchRotation=" + mTouchRotation
                 + " mLauncherRotation=" + mLauncherRotation
                 + " mHomeRotation=" + isHomeRotationAllowed()
                 + " mSystemRotation=" + systemRotationOn
                 + " mFlags=" + mFlags
-                + " mOrientationHandler=" + mOrientationHandler
                 + "]";
     }
 }

quickstep/src/com/android/quickstep/util/SplitScreenBounds.java

@@ -0,0 +1,112 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.quickstep.util;
+
+import static android.view.Surface.ROTATION_0;
+import static android.view.Surface.ROTATION_180;
+
+import android.annotation.TargetApi;
+import android.content.Context;
+import android.graphics.Insets;
+import android.graphics.Rect;
+import android.os.Build;
+import android.view.WindowInsets.Type;
+import android.view.WindowManager;
+import android.view.WindowMetrics;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.annotation.UiThread;
+
+import com.android.launcher3.R;
+import com.android.launcher3.util.DefaultDisplay;
+import com.android.launcher3.util.WindowBounds;
+
+import java.util.ArrayList;
+
+/**
+ * Utility class to hold the information abound a window bounds for split screen
+ */
+@TargetApi(Build.VERSION_CODES.R)
+public class SplitScreenBounds {
+
+    public static final SplitScreenBounds INSTANCE = new SplitScreenBounds();
+    private final ArrayList<OnChangeListener> mListeners = new ArrayList<>();
+
+    @Nullable
+    private WindowBounds mBounds;
+
+    private SplitScreenBounds() { }
+
+    @UiThread
+    public void setSecondaryWindowBounds(@NonNull WindowBounds bounds) {
+        if (!bounds.equals(mBounds)) {
+            mBounds = bounds;
+            for (OnChangeListener listener : mListeners) {
+                listener.onSecondaryWindowBoundsChanged();
+            }
+        }
+    }
+
+    public @NonNull WindowBounds getSecondaryWindowBounds(Context context) {
+        if (mBounds == null) {
+            mBounds = createDefaultWindowBounds(context);
+        }
+        return mBounds;
+    }
+
+    /**
+     * Creates window bounds as 50% of device size
+     */
+    private static WindowBounds createDefaultWindowBounds(Context context) {
+        WindowMetrics wm = context.getSystemService(WindowManager.class).getMaximumWindowMetrics();
+        Insets insets = wm.getWindowInsets().getInsets(Type.systemBars());
+
+        WindowBounds bounds = new WindowBounds(wm.getBounds(),
+                new Rect(insets.left, insets.top, insets.right, insets.bottom));
+        int rotation = DefaultDisplay.INSTANCE.get(context).getInfo().rotation;
+        int halfDividerSize = context.getResources()
+                .getDimensionPixelSize(R.dimen.multi_window_task_divider_size) / 2;
+
+        if (rotation == ROTATION_0 || rotation == ROTATION_180) {
+            bounds.bounds.top = bounds.insets.top + bounds.availableSize.y / 2 + halfDividerSize;
+            bounds.insets.top = 0;
+        } else {
+            bounds.bounds.left = bounds.insets.left + bounds.availableSize.x / 2 + halfDividerSize;
+            bounds.insets.left = 0;
+        }
+        return new WindowBounds(bounds.bounds, bounds.insets);
+    }
+
+    public void addOnChangeListener(OnChangeListener listener) {
+        mListeners.add(listener);
+    }
+
+    public void removeOnChangeListener(OnChangeListener listener) {
+        mListeners.remove(listener);
+    }
+
+    /**
+     * Interface to receive window bounds changes
+     */
+    public interface OnChangeListener {
+
+        /**
+         * Called when window bounds for secondary window changes
+         */
+        void onSecondaryWindowBoundsChanged();
+    }
+}

quickstep/src/com/android/quickstep/util/WindowSizeStrategy.java

@@ -16,36 +16,35 @@
 package com.android.quickstep.util;
 
 import static com.android.launcher3.config.FeatureFlags.ENABLE_OVERVIEW_ACTIONS;
+import static com.android.quickstep.SysUINavigationMode.getMode;
 import static com.android.quickstep.SysUINavigationMode.removeShelfFromOverview;
 import static com.android.quickstep.util.LayoutUtils.getDefaultSwipeHeight;
 
+import android.annotation.TargetApi;
 import android.content.Context;
 import android.content.res.Resources;
-import android.graphics.PointF;
 import android.graphics.Rect;
+import android.os.Build;
 
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.R;
+import com.android.launcher3.util.WindowBounds;
+import com.android.quickstep.SysUINavigationMode.Mode;
 
 /**
  * Utility class to wrap different layout behavior for Launcher and RecentsView
  * TODO: Merge is with {@link com.android.quickstep.BaseActivityInterface} once we remove the
  * state dependent members from {@link com.android.quickstep.LauncherActivityInterface}
  */
+@TargetApi(Build.VERSION_CODES.R)
 public abstract class WindowSizeStrategy {
 
-    private final PointF mTempPoint = new PointF();
     public final boolean rotationSupportedByActivity;
 
     private WindowSizeStrategy(boolean rotationSupportedByActivity) {
         this.rotationSupportedByActivity = rotationSupportedByActivity;
     }
 
-    /**
-     * Sets the expected window size in multi-window mode
-     */
-    public abstract void getMultiWindowSize(Context context, DeviceProfile dp, PointF out);
-
     /**
      * Calculates the taskView size for the provided device configuration
      */
@@ -57,35 +56,41 @@ public abstract class WindowSizeStrategy {
 
     private void calculateTaskSize(
             Context context, DeviceProfile dp, float extraVerticalSpace, Rect outRect) {
-        float taskWidth, taskHeight, paddingHorz;
         Resources res = context.getResources();
-        Rect insets = dp.getInsets();
         final boolean showLargeTaskSize = showOverviewActions(context);
 
+        final int paddingResId;
         if (dp.isMultiWindowMode) {
-            getMultiWindowSize(context, dp, mTempPoint);
+            paddingResId = R.dimen.multi_window_task_card_horz_space;
-            taskWidth = mTempPoint.x;
+        } else if (dp.isVerticalBarLayout()) {
-            taskHeight = mTempPoint.y;
+            paddingResId = R.dimen.landscape_task_card_horz_space;
-            paddingHorz = res.getDimension(R.dimen.multi_window_task_card_horz_space);
+        } else if (showLargeTaskSize) {
+            paddingResId = R.dimen.portrait_task_card_horz_space_big_overview;
+        } else {
+            paddingResId = R.dimen.portrait_task_card_horz_space;
+        }
+        float paddingHorz = res.getDimension(paddingResId);
+        float paddingVert = showLargeTaskSize
+                ? 0 : res.getDimension(R.dimen.task_card_vert_space);
+
+        calculateTaskSizeInternal(context, dp, extraVerticalSpace, paddingHorz, paddingVert,
+                res.getDimension(R.dimen.task_thumbnail_top_margin), outRect);
+    }
+
+    private void calculateTaskSizeInternal(Context context, DeviceProfile dp,
+            float extraVerticalSpace, float paddingHorz, float paddingVert, float topIconMargin,
+            Rect outRect) {
+        float taskWidth, taskHeight;
+        Rect insets = dp.getInsets();
+        if (dp.isMultiWindowMode) {
+            WindowBounds bounds = SplitScreenBounds.INSTANCE.getSecondaryWindowBounds(context);
+            taskWidth = bounds.availableSize.x;
+            taskHeight = bounds.availableSize.y;
         } else {
             taskWidth = dp.availableWidthPx;
             taskHeight = dp.availableHeightPx;
-
-            final int paddingResId;
-            if (dp.isVerticalBarLayout()) {
-                paddingResId = R.dimen.landscape_task_card_horz_space;
-            } else if (showLargeTaskSize) {
-                paddingResId = R.dimen.portrait_task_card_horz_space_big_overview;
-            } else {
-                paddingResId = R.dimen.portrait_task_card_horz_space;
-            }
-            paddingHorz = res.getDimension(paddingResId);
         }
 
-        float topIconMargin = res.getDimension(R.dimen.task_thumbnail_top_margin);
-        float paddingVert = showLargeTaskSize
-                ? 0 : res.getDimension(R.dimen.task_card_vert_space);
-
         // Note this should be same as dp.availableWidthPx and dp.availableHeightPx unless
         // we override the insets ourselves.
         int launcherVisibleWidth = dp.widthPx - insets.left - insets.right;
@@ -107,26 +112,41 @@ public abstract class WindowSizeStrategy {
                 Math.round(x) + Math.round(outWidth), Math.round(y) + Math.round(outHeight));
     }
 
+    /**
+     * Calculates the modal taskView size for the provided device configuration
+     */
+    public void calculateModalTaskSize(Context context, DeviceProfile dp, Rect outRect) {
+        float paddingHorz = context.getResources().getDimension(dp.isMultiWindowMode
+                ? R.dimen.multi_window_task_card_horz_space
+                : dp.isVerticalBarLayout()
+                        ? R.dimen.landscape_task_card_horz_space
+                        : R.dimen.portrait_modal_task_card_horz_space);
+        float extraVerticalSpace = getOverviewActionsHeight(context);
+        float paddingVert = 0;
+        float topIconMargin = 0;
+        calculateTaskSizeInternal(context, dp, extraVerticalSpace, paddingHorz, paddingVert,
+                topIconMargin, outRect);
+    }
+
+    /** Gets the space that the overview actions will take, including margins. */
+    public float getOverviewActionsHeight(Context context) {
+        Resources res = context.getResources();
+        float actionsBottomMargin = 0;
+        if (getMode(context) == Mode.THREE_BUTTONS) {
+            actionsBottomMargin = res.getDimensionPixelSize(
+                R.dimen.overview_actions_bottom_margin_three_button);
+        } else {
+            actionsBottomMargin = res.getDimensionPixelSize(
+                R.dimen.overview_actions_bottom_margin_gesture);
+        }
+        float overviewActionsHeight = actionsBottomMargin
+                + res.getDimensionPixelSize(R.dimen.overview_actions_height);
+        return overviewActionsHeight;
+    }
 
     public static final WindowSizeStrategy LAUNCHER_ACTIVITY_SIZE_STRATEGY =
             new WindowSizeStrategy(true) {
 
-        @Override
-        public void getMultiWindowSize(Context context, DeviceProfile dp, PointF out) {
-            DeviceProfile fullDp = dp.getFullScreenProfile();
-            // Use availableWidthPx and availableHeightPx instead of widthPx and heightPx to
-            // account for system insets
-            out.set(fullDp.availableWidthPx, fullDp.availableHeightPx);
-            float halfDividerSize = context.getResources()
-                    .getDimension(R.dimen.multi_window_task_divider_size) / 2;
-
-            if (fullDp.isLandscape) {
-                out.x = out.x / 2 - halfDividerSize;
-            } else {
-                out.y = out.y / 2 - halfDividerSize;
-            }
-        }
-
         @Override
         float getExtraSpace(Context context, DeviceProfile dp) {
             if (dp.isVerticalBarLayout()) {
@@ -136,7 +156,7 @@ public abstract class WindowSizeStrategy {
                 if (showOverviewActions(context)) {
                     //TODO: this needs to account for the swipe gesture height and accessibility
                     // UI when shown.
-                    return res.getDimensionPixelSize(R.dimen.overview_actions_height);
+                    return getOverviewActionsHeight(context);
                 } else {
                     return getDefaultSwipeHeight(context, dp) + dp.workspacePageIndicatorHeight
                             + res.getDimensionPixelSize(
@@ -150,10 +170,6 @@ public abstract class WindowSizeStrategy {
 
     public static final WindowSizeStrategy FALLBACK_RECENTS_SIZE_STRATEGY =
             new WindowSizeStrategy(false) {
-        @Override
-        public void getMultiWindowSize(Context context, DeviceProfile dp, PointF out) {
-            out.set(dp.widthPx, dp.heightPx);
-        }
 
         @Override
         float getExtraSpace(Context context, DeviceProfile dp) {

quickstep/tests/src/com/android/quickstep/TaplTestsQuickstep.java

@@ -42,6 +42,7 @@ import com.android.launcher3.ui.TaplTestsLauncher3;
 import com.android.quickstep.NavigationModeSwitchRule.NavigationModeSwitch;
 import com.android.quickstep.views.RecentsView;
 
+import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -53,6 +54,18 @@ public class TaplTestsQuickstep extends AbstractQuickStepTest {
     public void setUp() throws Exception {
         super.setUp();
         TaplTestsLauncher3.initialize(this);
+        executeOnLauncher(launcher -> {
+            RecentsView recentsView = launcher.getOverviewPanel();
+            recentsView.getPagedViewOrientedState().forceAllowRotationForTesting(true);
+        });
+    }
+
+    @After
+    public void tearDown() {
+        executeOnLauncher(launcher -> {
+            RecentsView recentsView = launcher.getOverviewPanel();
+            recentsView.getPagedViewOrientedState().forceAllowRotationForTesting(false);
+        });
     }
 
     private void startTestApps() throws Exception {

res/color/overview_button.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item
+        android:alpha="1"
+        android:color="?attr/workspaceTextColor"
+        android:state_enabled="true" />
+    <item
+        android:alpha="?android:disabledAlpha"
+        android:color="?attr/workspaceTextColor"
+        android:state_enabled="false" />
+</selector>

res/layout/work_profile_edu.xml

@@ -23,13 +23,13 @@
         android:layout_width="match_parent"
         android:layout_height="32dp"
         android:background="@drawable/bottom_sheet_top_border"
-        android:backgroundTint="?android:attr/colorAccent" />
+        android:backgroundTint="?attr/eduHalfSheetBGColor" />
 
     <LinearLayout
         android:id="@+id/view_wrapper"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:background="?android:attr/colorAccent"
+        android:background="?attr/eduHalfSheetBGColor"
         android:orientation="vertical"
         android:paddingLeft="@dimen/bottom_sheet_edu_padding"
         android:paddingRight="@dimen/bottom_sheet_edu_padding">

res/values-fa/strings.xml

@@ -131,7 +131,7 @@
     <string name="accessibility_close" msgid="2277148124685870734">"بستن"</string>
     <string name="notification_dismissed" msgid="6002233469409822874">"اعلان رد شد"</string>
     <string name="all_apps_personal_tab" msgid="4190252696685155002">"شخصی"</string>
-    <string name="all_apps_work_tab" msgid="4884822796154055118">"محل کار"</string>
+    <string name="all_apps_work_tab" msgid="4884822796154055118">"کاری"</string>
     <string name="work_profile_toggle_label" msgid="3081029915775481146">"نمایه کاری"</string>
     <string name="work_profile_edu_personal_apps" msgid="4155536355149317441">"داده‌های شخصی از برنامه‌های کاری جدا است و از آن پنهان است"</string>
     <string name="work_profile_edu_work_apps" msgid="237051938268703058">"برنامه‌های کاری و داده‌ها برای سرپرست فناوری اطلاعات نمایان هستند"</string>

res/values-gu/strings.xml

@@ -20,7 +20,7 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="work_folder_name" msgid="3753320833950115786">"કાર્યાલય"</string>
+    <string name="work_folder_name" msgid="3753320833950115786">"ઑફિસ"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"ઍપ્લિકેશન ઇન્સ્ટોલ થઈ નથી."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"ઍપ્લિકેશન ઉપલબ્ધ નથી"</string>
     <string name="safemode_shortcut_error" msgid="9160126848219158407">"સુરક્ષિત મોડમાં ડાઉનલોડ કરેલ ઍપ્લિકેશન અક્ષમ કરી"</string>
@@ -131,7 +131,7 @@
     <string name="accessibility_close" msgid="2277148124685870734">"બંધ કરો"</string>
     <string name="notification_dismissed" msgid="6002233469409822874">"સૂચના છોડી દીધી"</string>
     <string name="all_apps_personal_tab" msgid="4190252696685155002">"મનગમતી ઍપ"</string>
-    <string name="all_apps_work_tab" msgid="4884822796154055118">"કાર્યાલયની ઍપ"</string>
+    <string name="all_apps_work_tab" msgid="4884822796154055118">"ઑફિસની ઍપ"</string>
     <string name="work_profile_toggle_label" msgid="3081029915775481146">"ઑફિસની પ્રોફાઇલ"</string>
     <string name="work_profile_edu_personal_apps" msgid="4155536355149317441">"વ્યક્તિગત ડેટા ઑફિસ માટેની ઍપથી અલગ અને છુપાવીને રાખેલો છે"</string>
     <string name="work_profile_edu_work_apps" msgid="237051938268703058">"ઑફિસ માટેની ઍપ અને ડેટા તમારા IT વ્યવસ્થાપકને દેખાય છે"</string>

res/values-ne/strings.xml

@@ -53,11 +53,11 @@
     <string name="app_info_drop_target_label" msgid="692894985365717661">"अनुप्रयोगको जानकारी"</string>
     <string name="install_drop_target_label" msgid="2539096853673231757">"स्थापना गर्नुहोस्"</string>
     <string name="permlab_install_shortcut" msgid="5632423390354674437">"सर्टकट स्थापना गर्नेहोस्"</string>
-    <string name="permdesc_install_shortcut" msgid="923466509822011139">"प्रयोगकर्ताको हस्तक्षेप बिना एउटा अनुप्रयोगलाई सर्टकटमा थप्नको लागि अनुमति दिनुहोस्।"</string>
+    <string name="permdesc_install_shortcut" msgid="923466509822011139">"प्रयोगकर्ताको हस्तक्षेप बिना एउटा एपलाई सर्टकटमा थप्नको लागि अनुमति दिनुहोस्।"</string>
     <string name="permlab_read_settings" msgid="1941457408239617576">"गृह सेटिङहरू र सर्टकटहरू पढ्नुहोस्"</string>
-    <string name="permdesc_read_settings" msgid="5833423719057558387">"गृहमा एउटा अनुप्रयोगलाई सेटिङहरू र सर्टकटहरू पढ्न अनुमति दिनुहोस्।"</string>
+    <string name="permdesc_read_settings" msgid="5833423719057558387">"गृहमा एउटा एपलाई सेटिङहरू र सर्टकटहरू पढ्न अनुमति दिनुहोस्।"</string>
     <string name="permlab_write_settings" msgid="3574213698004620587">"गृह सेटिङहरू र सर्टकटहरू लेख्नुहोस्"</string>
-    <string name="permdesc_write_settings" msgid="5440712911516509985">"गृहमा एउटा अनुप्रयोगलाई सेटिङ र सर्टकट बदल्न अनुमति दिनुहोस्।"</string>
+    <string name="permdesc_write_settings" msgid="5440712911516509985">"गृहमा एउटा एपलाई सेटिङ र सर्टकट बदल्न अनुमति दिनुहोस्।"</string>
     <string name="msg_no_phone_permission" msgid="9208659281529857371">"<xliff:g id="APP_NAME">%1$s</xliff:g> ले फोन कलहरू गर्न अनुमति छैन"</string>
     <string name="gadget_error_text" msgid="6081085226050792095">"समस्या लोडिङ गर्ने विजेट"</string>
     <string name="gadget_setup_text" msgid="8274003207686040488">"सेटअप"</string>

res/values-or/strings.xml

@@ -20,7 +20,7 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"ଲଞ୍ଚର୍3"</string>
-    <string name="work_folder_name" msgid="3753320833950115786">"କାମ"</string>
+    <string name="work_folder_name" msgid="3753320833950115786">"ୱାର୍କ"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"ଆପ୍‌ ଇନଷ୍ଟଲ୍‌ ହୋଇନାହିଁ"</string>
     <string name="activity_not_available" msgid="7456344436509528827">"ଆପ୍‌ ଉପଲବ୍ଧ ନାହିଁ"</string>
     <string name="safemode_shortcut_error" msgid="9160126848219158407">"ନିରାପଦ ମୋଡରେ ଡାଉନଲୋଡ୍‌ ହେଇଥିବା ଆପ୍‌ ଅକ୍ଷମ କରାଗଲା"</string>
@@ -131,7 +131,7 @@
     <string name="accessibility_close" msgid="2277148124685870734">"ବନ୍ଦ କରନ୍ତୁ"</string>
     <string name="notification_dismissed" msgid="6002233469409822874">"ବିଜ୍ଞପ୍ତି ଖାରଜ କରାଗଲା"</string>
     <string name="all_apps_personal_tab" msgid="4190252696685155002">"ବ୍ୟକ୍ତିଗତ"</string>
-    <string name="all_apps_work_tab" msgid="4884822796154055118">"କାମ"</string>
+    <string name="all_apps_work_tab" msgid="4884822796154055118">"ୱାର୍କ"</string>
     <string name="work_profile_toggle_label" msgid="3081029915775481146">"ୱର୍କ ପ୍ରୋଫାଇଲ୍‌"</string>
     <string name="work_profile_edu_personal_apps" msgid="4155536355149317441">"ବ୍ୟକ୍ତିଗତ ଡାଟା କାର୍ଯ୍ୟସ୍ଥଳୀ ଆପଗୁଡ଼ିକ ଠାରୁ ପୃଥକ୍ ଓ ଲୁକ୍କାୟିତ ଅଟେ"</string>
     <string name="work_profile_edu_work_apps" msgid="237051938268703058">"କାର୍ଯ୍ୟସ୍ଥଳୀ ଆପଗୁଡ଼ିକ ଓ ଡାଟା ଆପଣଙ୍କ IT ଆଡମିନଙ୍କୁ ଦେଖାଯାଏ"</string>

res/values/attrs.xml

@@ -35,6 +35,7 @@
     <attr name="widgetsTheme" format="reference" />
     <attr name="loadingIconColor" format="color" />
     <attr name="iconOnlyShortcutColor" format="color"/>
+    <attr name="eduHalfSheetBGColor" format="color"/>
 
     <attr name="folderDotColor" format="color" />
     <attr name="folderFillColor" format="color" />

res/values/strings.xml

@@ -103,9 +103,9 @@
     <!-- Label for install drop target. [CHAR_LIMIT=20] -->
     <string name="install_drop_target_label">Install</string>
     <!-- Label for install dismiss prediction. -->
-    <string translatable="false" name="dismiss_prediction_label">Don\'t suggest app</string>
+    <string name="dismiss_prediction_label">Don\'t suggest app</string>
     <!-- Label for pinning predicted app. -->
-    <string name="pin_prediction" translatable="false">Pin Prediction</string>
+    <string name="pin_prediction">Pin Prediction</string>
 
 
     <!-- Permissions: -->
@@ -342,7 +342,7 @@
     <!--- heading shown when user opens work apps tab while work apps are paused -->
     <string name="work_apps_paused_title">Work profile is paused</string>
     <!--- body shown when user opens work apps tab while work apps are paused -->
-    <string name="work_apps_paused_body">Work apps can\’t send you notifications, use your battery, or access your location</string>
+    <string name="work_apps_paused_body">Work apps can\'t send you notifications, use your battery, or access your location</string>
     <!-- content description for paused work apps list -->
     <string name="work_apps_paused_content_description">Work profile is paused. Work apps can\’t send you notifications, use your battery, or access your location</string>
 

res/values/styles.xml

@@ -53,6 +53,7 @@
         <item name="loadingIconColor">#CCFFFFFF</item>
         <item name="iconOnlyShortcutColor">?android:attr/textColorSecondary</item>
         <item name="workProfileOverlayTextColor">#FF212121</item>
+        <item name="eduHalfSheetBGColor">?android:attr/colorAccent</item>
 
         <item name="android:windowTranslucentStatus">false</item>
         <item name="android:windowTranslucentNavigation">false</item>
@@ -90,7 +91,7 @@
         <item name="android:textColorHint">#A0FFFFFF</item>
         <item name="android:colorControlHighlight">#A0FFFFFF</item>
         <item name="android:colorPrimary">#FF212121</item>
-        <item name="allAppsScrimColor">#FF212121</item>
+        <item name="allAppsScrimColor">#FF000000</item>
         <item name="allAppsInterimScrimAlpha">102</item>
         <item name="allAppsNavBarScrimColor">#80000000</item>
         <item name="popupColorPrimary">#3C4043</item> <!-- Gray 800 -->
@@ -106,6 +107,7 @@
         <item name="loadingIconColor">#99FFFFFF</item>
         <item name="iconOnlyShortcutColor">#B3FFFFFF</item>
         <item name="workProfileOverlayTextColor">@android:color/white</item>
+        <item name="eduHalfSheetBGColor">#DD000000</item>
     </style>
 
     <style name="LauncherTheme.Dark.DarkMainColor" parent="@style/LauncherTheme.Dark">
@@ -229,9 +231,7 @@
 
     <style name="TextHeadline" parent="@android:style/TextAppearance.DeviceDefault.DialogWindowTitle" />
     <style name="PrimaryMediumText" parent="@android:style/TextAppearance.DeviceDefault.Medium"/>
-    <style name="PrimaryHeadline" parent="@android:style/TextAppearance.DeviceDefault.DialogWindowTitle">
+    <style name="PrimaryHeadline" parent="@android:style/TextAppearance.DeviceDefault.DialogWindowTitle"/>
-        <item name="android:textStyle">bold</item>
-    </style>
 
     <style name="TextTitle" parent="@android:style/TextAppearance.DeviceDefault" />
 

src/com/android/launcher3/BaseDraggingActivity.java

@@ -16,7 +16,7 @@
 
 package com.android.launcher3;
 
-import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.APP_LAUNCH_TAP;
+import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_APP_LAUNCH_TAP;
 import static com.android.launcher3.util.DefaultDisplay.CHANGE_ROTATION;
 
 import android.app.ActivityOptions;
@@ -183,8 +183,7 @@ public abstract class BaseDraggingActivity extends BaseActivity
                         sourceContainer);
             }
             getUserEventDispatcher().logAppLaunch(v, intent, user);
-
+            getStatsLogManager().log(LAUNCHER_APP_LAUNCH_TAP, item == null ? null
-            getStatsLogManager().log(APP_LAUNCH_TAP, item == null ? null
                     : item.buildProto(null));
             return true;
         } catch (NullPointerException|ActivityNotFoundException|SecurityException e) {

src/com/android/launcher3/BubbleTextView.java

@@ -60,6 +60,7 @@ import com.android.launcher3.model.data.ItemInfoWithIcon;
 import com.android.launcher3.model.data.PackageItemInfo;
 import com.android.launcher3.model.data.PromiseAppInfo;
 import com.android.launcher3.model.data.WorkspaceItemInfo;
+import com.android.launcher3.util.SafeCloseable;
 import com.android.launcher3.views.ActivityContext;
 import com.android.launcher3.views.IconLabelDotView;
 
@@ -722,17 +723,34 @@ public class BubbleTextView extends TextView implements ItemInfoUpdateReceiver,
     }
 
     @Override
-    public void getVisualDragBounds(Rect bounds) {
+    public void getWorkspaceVisualDragBounds(Rect bounds) {
         DeviceProfile grid = mActivity.getDeviceProfile();
         BubbleTextView.getIconBounds(this, bounds, grid.iconSizePx);
     }
 
+    private int getIconSizeForDisplay(int display) {
+        DeviceProfile grid = mActivity.getDeviceProfile();
+        switch (display) {
+            case DISPLAY_ALL_APPS:
+                return grid.allAppsIconSizePx;
+            case DISPLAY_WORKSPACE:
+            case DISPLAY_FOLDER:
+            default:
+                return grid.iconSizePx;
+        }
+    }
+
+    public void getSourceVisualDragBounds(Rect bounds) {
+        BubbleTextView.getIconBounds(this, bounds, getIconSizeForDisplay(mDisplay));
+    }
+
     @Override
-    public void prepareDrawDragView() {
+    public SafeCloseable prepareDrawDragView() {
         if (getIcon() instanceof FastBitmapDrawable) {
             FastBitmapDrawable icon = (FastBitmapDrawable) getIcon();
             icon.setScale(1f);
         }
         setForceHideDot(true);
+        return () -> { };
     }
 }

src/com/android/launcher3/DeleteDropTarget.java

@@ -16,6 +16,8 @@
 
 package com.android.launcher3;
 
+import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_ITEM_DROPPED_ON_CANCEL;
+import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_ITEM_DROPPED_ON_REMOVE;
 import static com.android.launcher3.userevent.nano.LauncherLogProto.Action.Touch.TAP;
 import static com.android.launcher3.userevent.nano.LauncherLogProto.ControlType.UNDO;
 
@@ -27,6 +29,7 @@ import android.view.View;
 import com.android.launcher3.accessibility.LauncherAccessibilityDelegate;
 import com.android.launcher3.dragndrop.DragOptions;
 import com.android.launcher3.logging.LoggerUtils;
+import com.android.launcher3.logging.StatsLogManager;
 import com.android.launcher3.model.ModelWriter;
 import com.android.launcher3.model.data.FolderInfo;
 import com.android.launcher3.model.data.ItemInfo;
@@ -38,6 +41,8 @@ import com.android.launcher3.views.Snackbar;
 
 public class DeleteDropTarget extends ButtonDropTarget {
 
+    private final StatsLogManager mStatsLogManager;
+
     private int mControlType = ControlType.DEFAULT_CONTROLTYPE;
 
     public DeleteDropTarget(Context context, AttributeSet attrs) {
@@ -46,6 +51,7 @@ public class DeleteDropTarget extends ButtonDropTarget {
 
     public DeleteDropTarget(Context context, AttributeSet attrs, int defStyle) {
         super(context, attrs, defStyle);
+        this.mStatsLogManager = StatsLogManager.newInstance(context);
     }
 
     @Override
@@ -120,6 +126,11 @@ public class DeleteDropTarget extends ButtonDropTarget {
             d.dragInfo.container = NO_ID;
         }
         super.onDrop(d, options);
+        mStatsLogManager.log(
+                mControlType == ControlType.REMOVE_TARGET
+                        ? LAUNCHER_ITEM_DROPPED_ON_REMOVE
+                        : LAUNCHER_ITEM_DROPPED_ON_CANCEL,
+                d.logInstanceId);
     }
 
     @Override

src/com/android/launcher3/DropTarget.java

@@ -78,7 +78,7 @@ public interface DropTarget {
         public DraggableView originalView = null;
 
         /** Used for matching DROP event with its corresponding DRAG event on the server side. */
-        final InstanceId mLogInstanceId =
+        public final InstanceId logInstanceId =
                 new InstanceIdSequence(1 << 20 /*InstanceId.INSTANCE_ID_MAX*/)
                     .newInstanceId();
 

src/com/android/launcher3/Launcher.java

@@ -67,7 +67,6 @@ import android.database.sqlite.SQLiteDatabase;
 import android.os.Build;
 import android.os.Bundle;
 import android.os.CancellationSignal;
-import android.os.Handler;
 import android.os.Parcelable;
 import android.os.Process;
 import android.os.StrictMode;
@@ -87,12 +86,12 @@ import android.view.accessibility.AccessibilityEvent;
 import android.view.animation.OvershootInterpolator;
 import android.widget.Toast;
 
+import androidx.annotation.CallSuper;
 import androidx.annotation.Nullable;
 import androidx.annotation.StringRes;
 import androidx.annotation.VisibleForTesting;
 
 import com.android.launcher3.DropTarget.DragObject;
-import com.android.launcher3.LauncherStateManager.StateHandler;
 import com.android.launcher3.accessibility.LauncherAccessibilityDelegate;
 import com.android.launcher3.allapps.AllAppsContainerView;
 import com.android.launcher3.allapps.AllAppsStore;
@@ -130,6 +129,10 @@ import com.android.launcher3.popup.PopupContainerWithArrow;
 import com.android.launcher3.popup.PopupDataProvider;
 import com.android.launcher3.popup.SystemShortcut;
 import com.android.launcher3.qsb.QsbContainerView;
+import com.android.launcher3.statemanager.StateManager;
+import com.android.launcher3.statemanager.StateManager.StateHandler;
+import com.android.launcher3.statemanager.StateManager.StateListener;
+import com.android.launcher3.statemanager.StatefulActivity;
 import com.android.launcher3.states.RotationHelper;
 import com.android.launcher3.testing.TestLogging;
 import com.android.launcher3.testing.TestProtocol;
@@ -193,7 +196,7 @@ import java.util.stream.Stream;
 /**
  * Default launcher application.
  */
-public class Launcher extends BaseDraggingActivity implements LauncherExterns,
+public class Launcher extends StatefulActivity<LauncherState> implements LauncherExterns,
         Callbacks, InvariantDeviceProfile.OnIDPChangeListener, PluginListener<OverlayPlugin> {
     public static final String TAG = "Launcher";
 
@@ -240,7 +243,7 @@ public class Launcher extends BaseDraggingActivity implements LauncherExterns,
     public static final String ON_RESUME_EVT = "Launcher.onResume";
     public static final String ON_NEW_INTENT_EVT = "Launcher.onNewIntent";
 
-    private LauncherStateManager mStateManager;
+    private StateManager<LauncherState> mStateManager;
 
     private static final int ON_ACTIVITY_RESULT_ANIMATION_DELAY = 500;
 
@@ -324,10 +327,6 @@ public class Launcher extends BaseDraggingActivity implements LauncherExterns,
 
     private RotationHelper mRotationHelper;
 
-    final Handler mHandler = new Handler();
-    private final Runnable mHandleDeferredResume = this::handleDeferredResume;
-    private boolean mDeferredResumePending;
-
     private float mCurrentAssistantVisibility = 0f;
 
     protected LauncherOverlayManager mOverlayManager;
@@ -374,9 +373,9 @@ public class Launcher extends BaseDraggingActivity implements LauncherExterns,
 
         mDragController = new DragController(this);
         mAllAppsController = new AllAppsTransitionController(this);
-        mStateManager = new LauncherStateManager(this);
+        mStateManager = new StateManager<>(this, NORMAL);
 
-        mOnboardingPrefs = createOnboardingPrefs(mSharedPrefs, mStateManager);
+        mOnboardingPrefs = createOnboardingPrefs(mSharedPrefs);
 
         mAppWidgetManager = new WidgetManagerHelper(this);
         mAppWidgetHost = new LauncherAppWidgetHost(this,
@@ -439,7 +438,7 @@ public class Launcher extends BaseDraggingActivity implements LauncherExterns,
 
         mRotationHelper.initialize();
 
-        mStateManager.addStateListener(new LauncherStateManager.StateListener() {
+        mStateManager.addStateListener(new StateListener<LauncherState>() {
 
             @Override
             public void onStateTransitionComplete(LauncherState finalState) {
@@ -466,9 +465,8 @@ public class Launcher extends BaseDraggingActivity implements LauncherExterns,
         return new LauncherOverlayManager() { };
     }
 
-    protected OnboardingPrefs createOnboardingPrefs(SharedPreferences sharedPrefs,
+    protected OnboardingPrefs createOnboardingPrefs(SharedPreferences sharedPrefs) {
-            LauncherStateManager stateManager) {
+        return new OnboardingPrefs<>(this, sharedPrefs);
-        return new OnboardingPrefs<>(this, sharedPrefs, stateManager);
     }
 
     public OnboardingPrefs getOnboardingPrefs() {
@@ -522,13 +520,9 @@ public class Launcher extends BaseDraggingActivity implements LauncherExterns,
     }
 
     @Override
-    public void reapplyUi() {
-        reapplyUi(true /* cancelCurrentAnimation */);
-    }
-
     public void reapplyUi(boolean cancelCurrentAnimation) {
         getRootView().dispatchInsets();
-        getStateManager().reapplyState(cancelCurrentAnimation);
+        super.reapplyUi(cancelCurrentAnimation);
     }
 
     @Override
@@ -582,7 +576,8 @@ public class Launcher extends BaseDraggingActivity implements LauncherExterns,
         return mFocusHandler;
     }
 
-    public LauncherStateManager getStateManager() {
+    @Override
+    public StateManager<LauncherState> getStateManager() {
         return mStateManager;
     }
 
@@ -889,11 +884,7 @@ public class Launcher extends BaseDraggingActivity implements LauncherExterns,
 
     @Override
     protected void onStop() {
-        final boolean wasActive = isUserActive();
-        final LauncherState origState = getStateManager().getState();
-        final int origDragLayerChildCount = mDragLayer.getChildCount();
         super.onStop();
-
         if (mDeferOverlayCallbacks) {
             checkIfOverlayStillDeferred();
         } else {
@@ -901,28 +892,8 @@ public class Launcher extends BaseDraggingActivity implements LauncherExterns,
         }
 
         logStopAndResume(Action.Command.STOP);
-
         mAppWidgetHost.setListenIfResumed(false);
-
         NotificationListener.removeNotificationsChangedListener();
-        getStateManager().moveToRestState();
-
-        // Workaround for b/78520668, explicitly trim memory once UI is hidden
-        onTrimMemory(TRIM_MEMORY_UI_HIDDEN);
-
-        if (wasActive) {
-            // The expected condition is that this activity is stopped because the device goes to
-            // sleep and the UI may have noticeable changes.
-            mDragLayer.post(() -> {
-                if ((!getStateManager().isInStableState(origState)
-                        // The drag layer may be animating (e.g. dismissing QSB).
-                        || mDragLayer.getAlpha() < 1
-                        // Maybe an ArrowPopup is closed.
-                        || mDragLayer.getChildCount() != origDragLayerChildCount)) {
-                    onUiChangedWhileSleeping();
-                }
-            });
-        }
     }
 
     @Override
@@ -938,35 +909,27 @@ public class Launcher extends BaseDraggingActivity implements LauncherExterns,
         TraceHelper.INSTANCE.endSection(traceToken);
     }
 
-    private void handleDeferredResume() {
+    @Override
-        if (hasBeenResumed() && !mStateManager.getState().hasFlag(FLAG_NON_INTERACTIVE)) {
+    @CallSuper
-            logStopAndResume(Action.Command.RESUME);
+    protected void onDeferredResumed() {
-            getUserEventDispatcher().startSession();
+        logStopAndResume(Action.Command.RESUME);
+        getUserEventDispatcher().startSession();
 
-            AppLaunchTracker.INSTANCE.get(this).onReturnedToHome();
+        AppLaunchTracker.INSTANCE.get(this).onReturnedToHome();
 
-            // Process any items that were added while Launcher was away.
+        // Process any items that were added while Launcher was away.
-            InstallShortcutReceiver.disableAndFlushInstallQueue(
+        InstallShortcutReceiver.disableAndFlushInstallQueue(
-                    InstallShortcutReceiver.FLAG_ACTIVITY_PAUSED, this);
+                InstallShortcutReceiver.FLAG_ACTIVITY_PAUSED, this);
 
-            // Refresh shortcuts if the permission changed.
+        // Refresh shortcuts if the permission changed.
-            mModel.refreshShortcutsIfRequired();
+        mModel.refreshShortcutsIfRequired();
 
-            // Set the notification listener and fetch updated notifications when we resume
+        // Set the notification listener and fetch updated notifications when we resume
-            NotificationListener.setNotificationsChangedListener(mPopupDataProvider);
+        NotificationListener.setNotificationsChangedListener(mPopupDataProvider);
 
-            DiscoveryBounce.showForHomeIfNeeded(this);
+        DiscoveryBounce.showForHomeIfNeeded(this);
-
-            onDeferredResumed();
-            addActivityFlags(ACTIVITY_STATE_DEFERRED_RESUMED);
-
-            mDeferredResumePending = false;
-        } else {
-            mDeferredResumePending = true;
-        }
     }
 
-    protected void onDeferredResumed() { }
 
     private void logStopAndResume(int command) {
         int containerType = mStateManager.getState().containerType;
@@ -1015,10 +978,9 @@ public class Launcher extends BaseDraggingActivity implements LauncherExterns,
         return mOverlayManager;
     }
 
+    @Override
     public void onStateSetStart(LauncherState state) {
-        if (mDeferredResumePending) {
+        super.onStateSetStart(state);
-            handleDeferredResume();
-        }
         if (mDeferOverlayCallbacks) {
             scheduleDeferredCheck();
         }
@@ -1041,7 +1003,9 @@ public class Launcher extends BaseDraggingActivity implements LauncherExterns,
         mWorkspace.getPageIndicator().setShouldAutoHide(!state.hasFlag(FLAG_MULTI_PAGE));
     }
 
+    @Override
     public void onStateSetEnd(LauncherState state) {
+        super.onStateSetStart(state);
         getAppWidgetHost().setResumed(state == LauncherState.NORMAL);
         getWorkspace().setClipChildren(!state.hasFlag(FLAG_MULTI_PAGE));
 
@@ -1067,9 +1031,6 @@ public class Launcher extends BaseDraggingActivity implements LauncherExterns,
                 TraceHelper.FLAG_UI_EVENT);
         super.onResume();
 
-        mHandler.removeCallbacks(mHandleDeferredResume);
-        Utilities.postAsyncCallback(mHandler, mHandleDeferredResume);
-
         if (!mOnResumeCallbacks.isEmpty()) {
             final ArrayList<OnResumeCallback> resumeCallbacks = new ArrayList<>(mOnResumeCallbacks);
             mOnResumeCallbacks.clear();
@@ -1112,10 +1073,6 @@ public class Launcher extends BaseDraggingActivity implements LauncherExterns,
         }
     }
 
-    public boolean isInState(LauncherState state) {
-        return mStateManager.getState() == state;
-    }
-
     /**
      * Restores the previous state, if it exists.
      *
@@ -1354,8 +1311,6 @@ public class Launcher extends BaseDraggingActivity implements LauncherExterns,
         }
     };
 
-    protected void onUiChangedWhileSleeping() { }
-
     private void updateNotificationDots(Predicate<PackageUserKey> updatedDots) {
         mWorkspace.updateNotificationDots(updatedDots);
         mAppsView.getAppsStore().updateNotificationDots(updatedDots);
@@ -2720,7 +2675,7 @@ public class Launcher extends BaseDraggingActivity implements LauncherExterns,
         return super.onKeyUp(keyCode, event);
     }
 
-    protected StateHandler[] createStateHandlers() {
+    protected StateHandler<LauncherState>[] createStateHandlers() {
         return new StateHandler[] { getAllAppsController(), getWorkspace() };
     }
 

src/com/android/launcher3/LauncherAppTransitionManager.java

@@ -13,11 +13,8 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-
 package com.android.launcher3;
 
-
-import android.animation.Animator;
 import android.app.ActivityOptions;
 import android.content.Context;
 import android.graphics.Rect;
@@ -57,17 +54,6 @@ public class LauncherAppTransitionManager implements ResourceBasedOverride {
         return false;
     }
 
-    /**
-     * Number of animations which run on state properties.
-     */
-    public int getStateElementAnimationsCount() {
-        return 0;
-    }
-
-    public Animator createStateElementAnimation(int index, float... values) {
-        throw new RuntimeException("Unknown gesture animation " + index);
-    }
-
     /**
      * Registers remote animations for certain system transitions.
      */

src/com/android/launcher3/LauncherProvider.java

@@ -20,7 +20,6 @@ import static com.android.launcher3.config.FeatureFlags.MULTI_DB_GRID_MIRATION_A
 import static com.android.launcher3.provider.LauncherDbUtils.copyTable;
 import static com.android.launcher3.provider.LauncherDbUtils.dropTable;
 import static com.android.launcher3.provider.LauncherDbUtils.tableExists;
-import static com.android.launcher3.util.Executors.MODEL_EXECUTOR;
 
 import android.annotation.TargetApi;
 import android.app.backup.BackupManager;
@@ -48,7 +47,6 @@ import android.net.Uri;
 import android.os.Binder;
 import android.os.Build;
 import android.os.Bundle;
-import android.os.Handler;
 import android.os.Process;
 import android.os.UserHandle;
 import android.os.UserManager;
@@ -85,6 +83,7 @@ import java.net.URISyntaxException;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Locale;
+import java.util.concurrent.TimeUnit;
 import java.util.function.Supplier;
 
 public class LauncherProvider extends ContentProvider {
@@ -92,8 +91,7 @@ public class LauncherProvider extends ContentProvider {
     private static final boolean LOGD = false;
 
     private static final String DOWNGRADE_SCHEMA_FILE = "downgrade_schema.json";
-    private static final String TOKEN_RESTORE_BACKUP_TABLE = "restore_backup_table";
+    private static final long RESTORE_BACKUP_TABLE_DELAY = TimeUnit.SECONDS.toMillis(30);
-    private static final long RESTORE_BACKUP_TABLE_DELAY = 60000;
 
     /**
      * Represents the schema of the database. Changes in scheme need not be backwards compatible.
@@ -107,6 +105,8 @@ public class LauncherProvider extends ContentProvider {
 
     protected DatabaseHelper mOpenHelper;
 
+    private long mLastRestoreTimestamp = 0L;
+
     /**
      * $ adb shell dumpsys activity provider com.android.launcher3
      */
@@ -412,11 +412,12 @@ public class LauncherProvider extends ContentProvider {
                 return null;
             }
             case LauncherSettings.Settings.METHOD_RESTORE_BACKUP_TABLE: {
-                final Handler handler = MODEL_EXECUTOR.getHandler();
+                final long ts = System.currentTimeMillis();
-                handler.removeCallbacksAndMessages(TOKEN_RESTORE_BACKUP_TABLE);
+                if (ts - mLastRestoreTimestamp > RESTORE_BACKUP_TABLE_DELAY) {
-                handler.postDelayed(() -> RestoreDbTask.restoreIfPossible(
+                    mLastRestoreTimestamp = ts;
-                        getContext(), mOpenHelper, new BackupManager(getContext())),
+                    RestoreDbTask.restoreIfPossible(
-                        TOKEN_RESTORE_BACKUP_TABLE, RESTORE_BACKUP_TABLE_DELAY);
+                            getContext(), mOpenHelper, new BackupManager(getContext()));
+                }
                 return null;
             }
             case LauncherSettings.Settings.METHOD_UPDATE_CURRENT_OPEN_HELPER: {

src/com/android/launcher3/LauncherState.java

@@ -15,19 +15,7 @@
  */
 package com.android.launcher3;
 
-import static android.view.View.VISIBLE;
-
-import static com.android.launcher3.anim.Interpolators.ACCEL;
 import static com.android.launcher3.anim.Interpolators.ACCEL_2;
-import static com.android.launcher3.anim.Interpolators.DEACCEL;
-import static com.android.launcher3.anim.Interpolators.DEACCEL_1_7;
-import static com.android.launcher3.anim.Interpolators.clampToProgress;
-import static com.android.launcher3.config.FeatureFlags.ENABLE_OVERVIEW_ACTIONS;
-import static com.android.launcher3.states.StateAnimationConfig.ANIM_OVERVIEW_FADE;
-import static com.android.launcher3.states.StateAnimationConfig.ANIM_OVERVIEW_SCALE;
-import static com.android.launcher3.states.StateAnimationConfig.ANIM_OVERVIEW_TRANSLATE_X;
-import static com.android.launcher3.states.StateAnimationConfig.ANIM_WORKSPACE_FADE;
-import static com.android.launcher3.states.StateAnimationConfig.ANIM_WORKSPACE_SCALE;
 import static com.android.launcher3.testing.TestProtocol.ALL_APPS_STATE_ORDINAL;
 import static com.android.launcher3.testing.TestProtocol.BACKGROUND_APP_STATE_ORDINAL;
 import static com.android.launcher3.testing.TestProtocol.HINT_STATE_ORDINAL;
@@ -39,24 +27,22 @@ import static com.android.launcher3.testing.TestProtocol.QUICK_SWITCH_STATE_ORDI
 import static com.android.launcher3.testing.TestProtocol.SPRING_LOADED_STATE_ORDINAL;
 
 import android.content.Context;
-import android.view.View;
 import android.view.animation.Interpolator;
 
-import com.android.launcher3.allapps.AllAppsContainerView;
+import com.android.launcher3.statemanager.BaseState;
+import com.android.launcher3.statemanager.StateManager;
 import com.android.launcher3.states.HintState;
 import com.android.launcher3.states.SpringLoadedState;
-import com.android.launcher3.states.StateAnimationConfig;
 import com.android.launcher3.uioverrides.states.AllAppsState;
 import com.android.launcher3.uioverrides.states.OverviewState;
 import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
 
 import java.util.Arrays;
 
-
 /**
  * Base state for various states used for the Launcher
  */
-public abstract class LauncherState {
+public abstract class LauncherState implements BaseState<LauncherState> {
 
     /**
      * Set of elements indicating various workspace elements which change visibility across states
@@ -76,25 +62,22 @@ public abstract class LauncherState {
             HOTSEAT_SEARCH_BOX | ALL_APPS_HEADER | ALL_APPS_HEADER_EXTRA | ALL_APPS_CONTENT;
 
     // Flag indicating workspace has multiple pages visible.
-    public static final int FLAG_MULTI_PAGE = 1 << 0;
+    public static final int FLAG_MULTI_PAGE = BaseState.getFlag(0);
     // Flag indicating that workspace and its contents are not accessible
-    public static final int FLAG_WORKSPACE_INACCESSIBLE = 1 << 1;
+    public static final int FLAG_WORKSPACE_INACCESSIBLE = BaseState.getFlag(1);
 
-    public static final int FLAG_DISABLE_RESTORE = 1 << 2;
     // Flag indicating the state allows workspace icons to be dragged.
-    public static final int FLAG_WORKSPACE_ICONS_CAN_BE_DRAGGED = 1 << 3;
+    public static final int FLAG_WORKSPACE_ICONS_CAN_BE_DRAGGED = BaseState.getFlag(2);
     // Flag to indicate that workspace should draw page background
-    public static final int FLAG_WORKSPACE_HAS_BACKGROUNDS = 1 << 4;
+    public static final int FLAG_WORKSPACE_HAS_BACKGROUNDS = BaseState.getFlag(3);
-    // Flag to indicate that Launcher is non-interactive in this state
-    public static final int FLAG_NON_INTERACTIVE = 1 << 5;
     // True if the back button should be hidden when in this state (assuming no floating views are
     // open, launcher has window focus, etc).
-    public static final int FLAG_HIDE_BACK_BUTTON = 1 << 6;
+    public static final int FLAG_HIDE_BACK_BUTTON = BaseState.getFlag(4);
     // Flag to indicate if the state would have scrim over sysui region: statu sbar and nav bar
-    public static final int FLAG_HAS_SYS_UI_SCRIM = 1 << 7;
+    public static final int FLAG_HAS_SYS_UI_SCRIM = BaseState.getFlag(5);
     // Flag to inticate that all popups should be closed when this state is enabled.
-    public static final int FLAG_CLOSE_POPUPS = 1 << 8;
+    public static final int FLAG_CLOSE_POPUPS = BaseState.getFlag(6);
-    public static final int FLAG_OVERVIEW_UI = 1 << 9;
+    public static final int FLAG_OVERVIEW_UI = BaseState.getFlag(7);
 
 
     public static final float NO_OFFSET = 0;
@@ -167,26 +150,15 @@ public abstract class LauncherState {
     /**
      * Returns if the state has the provided flag
      */
+    @Override
     public final boolean hasFlag(int mask) {
         return (mFlags & mask) != 0;
     }
 
-    /**
-     * @return true if the state can be persisted across activity restarts.
-     */
-    public final boolean shouldDisableRestore() {
-        return hasFlag(FLAG_DISABLE_RESTORE);
-    }
-
     public static LauncherState[] values() {
         return Arrays.copyOf(sAllStates, sAllStates.length);
     }
 
-    /**
-     * @return How long the animation to this state should take (or from this state to NORMAL).
-     */
-    public abstract int getTransitionDuration(Context context);
-
     public ScaleAndTranslation getWorkspaceScaleAndTranslation(Launcher launcher) {
         return new ScaleAndTranslation(NO_SCALE, NO_OFFSET, NO_OFFSET);
     }
@@ -280,65 +252,22 @@ public abstract class LauncherState {
         };
     }
 
+    @Override
     public LauncherState getHistoryForState(LauncherState previousState) {
         // No history is supported
         return NORMAL;
     }
 
-    public void onBackPressed(Launcher launcher) {
+    @Override
-        if (this != NORMAL) {
+    public String toString() {
-            LauncherStateManager lsm = launcher.getStateManager();
+        return "Ordinal-" + ordinal;
-            LauncherState lastState = lsm.getLastState();
-            lsm.goToState(lastState);
-        }
     }
 
-    /**
+    public void onBackPressed(Launcher launcher) {
-     * Prepares for a non-user controlled animation from fromState to this state. Preparations
+        if (this != NORMAL) {
-     * include:
+            StateManager<LauncherState> lsm = launcher.getStateManager();
-     * - Setting interpolators for various animations included in the state transition.
+            LauncherState lastState = lsm.getLastState();
-     * - Setting some start values (e.g. scale) for views that are hidden but about to be shown.
+            lsm.goToState(lastState);
-     */
-    public void prepareForAtomicAnimation(Launcher launcher, LauncherState fromState,
-            StateAnimationConfig config) {
-        if (this == NORMAL && fromState == OVERVIEW) {
-            config.setInterpolator(ANIM_WORKSPACE_SCALE, DEACCEL);
-            config.setInterpolator(ANIM_WORKSPACE_FADE, ACCEL);
-            config.setInterpolator(ANIM_OVERVIEW_SCALE, clampToProgress(ACCEL, 0, 0.9f));
-            config.setInterpolator(ANIM_OVERVIEW_TRANSLATE_X, ACCEL);
-            config.setInterpolator(ANIM_OVERVIEW_FADE, DEACCEL_1_7);
-            Workspace workspace = launcher.getWorkspace();
-
-            // Start from a higher workspace scale, but only if we're invisible so we don't jump.
-            boolean isWorkspaceVisible = workspace.getVisibility() == VISIBLE;
-            if (isWorkspaceVisible) {
-                CellLayout currentChild = (CellLayout) workspace.getChildAt(
-                        workspace.getCurrentPage());
-                isWorkspaceVisible = currentChild.getVisibility() == VISIBLE
-                        && currentChild.getShortcutsAndWidgets().getAlpha() > 0;
-            }
-            if (!isWorkspaceVisible) {
-                workspace.setScaleX(0.92f);
-                workspace.setScaleY(0.92f);
-            }
-            Hotseat hotseat = launcher.getHotseat();
-            boolean isHotseatVisible = hotseat.getVisibility() == VISIBLE && hotseat.getAlpha() > 0;
-            if (!isHotseatVisible) {
-                hotseat.setScaleX(0.92f);
-                hotseat.setScaleY(0.92f);
-                if (ENABLE_OVERVIEW_ACTIONS.get()) {
-                    AllAppsContainerView qsbContainer = launcher.getAppsView();
-                    View qsb = qsbContainer.getSearchView();
-                    boolean qsbVisible = qsb.getVisibility() == VISIBLE && qsb.getAlpha() > 0;
-                    if (!qsbVisible) {
-                        qsbContainer.setScaleX(0.92f);
-                        qsbContainer.setScaleY(0.92f);
-                    }
-                }
-            }
-        } else if (this == NORMAL && fromState == OVERVIEW_PEEK) {
-            // Keep fully visible until the very end (when overview is offscreen) to make invisible.
-            config.setInterpolator(ANIM_OVERVIEW_FADE, t -> t < 1 ? 0 : 1);
         }
     }
 

src/com/android/launcher3/SecondaryDropTarget.java

@@ -7,6 +7,10 @@ import static com.android.launcher3.LauncherSettings.Favorites.CONTAINER_DESKTOP
 import static com.android.launcher3.accessibility.LauncherAccessibilityDelegate.DISMISS_PREDICTION;
 import static com.android.launcher3.accessibility.LauncherAccessibilityDelegate.RECONFIGURE;
 import static com.android.launcher3.accessibility.LauncherAccessibilityDelegate.UNINSTALL;
+import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_ITEM_DROPPED_ON_DONT_SUGGEST;
+import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_ITEM_DROPPED_ON_UNINSTALL;
+import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_ITEM_UNINSTALL_CANCELLED;
+import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_ITEM_UNINSTALL_COMPLETED;
 import static com.android.launcher3.model.data.ItemInfoWithIcon.FLAG_SYSTEM_MASK;
 import static com.android.launcher3.model.data.ItemInfoWithIcon.FLAG_SYSTEM_NO;
 
@@ -34,6 +38,7 @@ import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.dragndrop.DragOptions;
 import com.android.launcher3.logging.FileLog;
 import com.android.launcher3.logging.LoggerUtils;
+import com.android.launcher3.logging.StatsLogManager;
 import com.android.launcher3.model.AppLaunchTracker;
 import com.android.launcher3.model.data.ItemInfo;
 import com.android.launcher3.model.data.ItemInfoWithIcon;
@@ -58,7 +63,7 @@ public class SecondaryDropTarget extends ButtonDropTarget implements OnAlarmList
 
     private static final long CACHE_EXPIRE_TIMEOUT = 5000;
     private final ArrayMap<UserHandle, Boolean> mUninstallDisabledCache = new ArrayMap<>(1);
-
+    private final StatsLogManager mStatsLogManager;
     private final Alarm mCacheExpireAlarm;
     private boolean mHadPendingAlarm;
 
@@ -69,8 +74,8 @@ public class SecondaryDropTarget extends ButtonDropTarget implements OnAlarmList
 
     public SecondaryDropTarget(Context context, AttributeSet attrs, int defStyle) {
         super(context, attrs, defStyle);
-
         mCacheExpireAlarm = new Alarm();
+        mStatsLogManager = StatsLogManager.newInstance(context);
     }
 
     @Override
@@ -214,6 +219,11 @@ public class SecondaryDropTarget extends ButtonDropTarget implements OnAlarmList
         // Defer onComplete
         d.dragSource = new DeferredOnComplete(d.dragSource, getContext());
         super.onDrop(d, options);
+        if (mCurrentAccessibilityAction == UNINSTALL) {
+            mStatsLogManager.log(LAUNCHER_ITEM_DROPPED_ON_UNINSTALL, d.logInstanceId);
+        } else if (mCurrentAccessibilityAction == DISMISS_PREDICTION) {
+            mStatsLogManager.log(LAUNCHER_ITEM_DROPPED_ON_DONT_SUGGEST, d.logInstanceId);
+        }
     }
 
     @Override
@@ -338,8 +348,10 @@ public class SecondaryDropTarget extends ButtonDropTarget implements OnAlarmList
                     mDragObject.dragInfo.user, PackageManager.MATCH_UNINSTALLED_PACKAGES) == null) {
                 mDragObject.dragSource = mOriginal;
                 mOriginal.onDropCompleted(SecondaryDropTarget.this, mDragObject, true);
+                mStatsLogManager.log(LAUNCHER_ITEM_UNINSTALL_COMPLETED, mDragObject.logInstanceId);
             } else {
                 sendFailure();
+                mStatsLogManager.log(LAUNCHER_ITEM_UNINSTALL_CANCELLED, mDragObject.logInstanceId);
             }
         }
 

src/com/android/launcher3/Workspace.java

@@ -89,6 +89,7 @@ import com.android.launcher3.model.data.LauncherAppWidgetInfo;
 import com.android.launcher3.model.data.WorkspaceItemInfo;
 import com.android.launcher3.pageindicators.WorkspacePageIndicator;
 import com.android.launcher3.popup.PopupContainerWithArrow;
+import com.android.launcher3.statemanager.StateManager.StateHandler;
 import com.android.launcher3.states.StateAnimationConfig;
 import com.android.launcher3.touch.WorkspaceTouchListener;
 import com.android.launcher3.userevent.nano.LauncherLogProto.Action;
@@ -119,7 +120,7 @@ import java.util.function.Predicate;
  */
 public class Workspace extends PagedView<WorkspacePageIndicator>
         implements DropTarget, DragSource, View.OnTouchListener,
-        DragController.DragListener, Insettable, LauncherStateManager.StateHandler,
+        DragController.DragListener, Insettable, StateHandler<LauncherState>,
         WorkspaceLayoutManager {
 
     /** The value that {@link #mTransitionProgress} must be greater than for
@@ -416,8 +417,12 @@ public class Workspace extends PagedView<WorkspacePageIndicator>
         mLauncher.getStateManager().goToState(SPRING_LOADED);
         mStatsLogManager.log(
                 LauncherEvent.LAUNCHER_ITEM_DRAG_STARTED,
-                dragObject.mLogInstanceId,
+                dragObject.logInstanceId,
-                dragObject.originalDragInfo.buildProto(null));
+                dragObject.originalDragInfo.buildProto(
+                    dragObject.dragSource instanceof Folder
+                        ? ((Folder) dragObject.dragSource).mInfo
+                        : null)
+        );
     }
 
     public void deferRemoveExtraEmptyScreen() {
@@ -1437,6 +1442,10 @@ public class Workspace extends PagedView<WorkspacePageIndicator>
 
         mOutlineProvider = previewProvider;
 
+        if (draggableView == null && child instanceof DraggableView) {
+            draggableView = (DraggableView) child;
+        }
+
         // The drag bitmap follows the touch point around on the screen
         final Bitmap b = previewProvider.createDragBitmap();
         int halfPadding = previewProvider.previewPadding / 2;
@@ -1447,12 +1456,8 @@ public class Workspace extends PagedView<WorkspacePageIndicator>
         Point dragVisualizeOffset = null;
         Rect dragRect = new Rect();
 
-        if (draggableView == null && child instanceof DraggableView) {
-            draggableView = (DraggableView) child;
-        }
-
         if (draggableView != null) {
-            draggableView.getVisualDragBounds(dragRect);
+            draggableView.getSourceVisualDragBounds(dragRect);
             dragLayerY += dragRect.top;
             dragVisualizeOffset = new Point(- halfPadding, halfPadding);
         }
@@ -1645,7 +1650,10 @@ public class Workspace extends PagedView<WorkspacePageIndicator>
             Rect folderLocation = new Rect();
             float scale = mLauncher.getDragLayer().getDescendantRectRelativeToSelf(v, folderLocation);
             target.removeView(v);
-
+            mStatsLogManager.log(
+                    LauncherEvent.LAUNCHER_ITEM_DROP_FOLDER_CREATED,
+                    d.logInstanceId,
+                    destInfo.buildProto(null));
             FolderIcon fi = mLauncher.addFolder(target, container, screenId, targetCell[0],
                     targetCell[1]);
             destInfo.cellX = -1;
@@ -1683,6 +1691,10 @@ public class Workspace extends PagedView<WorkspacePageIndicator>
         if (dropOverView instanceof FolderIcon) {
             FolderIcon fi = (FolderIcon) dropOverView;
             if (fi.acceptDrop(d.dragInfo)) {
+                mStatsLogManager.log(
+                        LauncherEvent.LAUNCHER_ITEM_DROP_COMPLETED,
+                        d.logInstanceId,
+                        fi.mInfo.buildProto(null));
                 fi.onDrop(d, false /* itemReturnedOnFailedDrop */);
 
                 // if the drag started here, we need to remove it from the workspace
@@ -1885,15 +1897,15 @@ public class Workspace extends PagedView<WorkspacePageIndicator>
 
             mLauncher.getStateManager().goToState(
                     NORMAL, SPRING_LOADED_EXIT_DELAY, onCompleteRunnable);
+            mStatsLogManager.log(
+                    LauncherEvent.LAUNCHER_ITEM_DROP_COMPLETED,
+                    d.logInstanceId,
+                    d.dragInfo.buildProto(null));
         }
 
         if (d.stateAnnouncer != null && !droppedOnOriginalCell) {
             d.stateAnnouncer.completeAction(R.string.item_moved);
         }
-        mStatsLogManager.log(
-                LauncherEvent.LAUNCHER_ITEM_DROP_COMPLETED,
-                d.mLogInstanceId,
-                d.dragInfo.buildProto(null));
     }
 
     public void onNoCellFound(View dropTargetLayout) {
@@ -2515,6 +2527,10 @@ public class Workspace extends PagedView<WorkspacePageIndicator>
                 resetTransitionTransform();
             }
         }
+        mStatsLogManager.log(
+                LauncherEvent.LAUNCHER_ITEM_DROP_COMPLETED,
+                d.logInstanceId,
+                d.dragInfo.buildProto(null));
     }
 
     public Bitmap createWidgetBitmap(ItemInfo widgetInfo, View layout) {

src/com/android/launcher3/WorkspaceStateTransitionAnimation.java

@@ -66,7 +66,7 @@ public class WorkspaceStateTransitionAnimation {
     }
 
     /**
-     * @see com.android.launcher3.LauncherStateManager.StateHandler#setStateWithAnimation
+     * @see com.android.launcher3.statemanager.StateManager.StateHandler#setStateWithAnimation
      */
     public void setStateWithAnimation(
             LauncherState toState, StateAnimationConfig config, PendingAnimation animation) {

src/com/android/launcher3/allapps/AllAppsTransitionController.java

@@ -28,11 +28,11 @@ import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.DeviceProfile.OnDeviceProfileChangeListener;
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherState;
-import com.android.launcher3.LauncherStateManager.StateHandler;
 import com.android.launcher3.R;
 import com.android.launcher3.anim.AnimationSuccessListener;
 import com.android.launcher3.anim.PendingAnimation;
 import com.android.launcher3.anim.PropertySetter;
+import com.android.launcher3.statemanager.StateManager.StateHandler;
 import com.android.launcher3.states.StateAnimationConfig;
 import com.android.launcher3.uioverrides.plugins.PluginManagerWrapper;
 import com.android.launcher3.util.Themes;
@@ -50,8 +50,8 @@ import com.android.systemui.plugins.PluginListener;
  * If release velocity < THRES1, snap according to either top or bottom depending on whether it's
  * closer to top or closer to the page indicator.
  */
-public class AllAppsTransitionController implements StateHandler, OnDeviceProfileChangeListener,
+public class AllAppsTransitionController implements StateHandler<LauncherState>,
-        PluginListener<AllAppsSearchPlugin> {
+        OnDeviceProfileChangeListener, PluginListener<AllAppsSearchPlugin> {
 
     public static final FloatProperty<AllAppsTransitionController> ALL_APPS_PROGRESS =
             new FloatProperty<AllAppsTransitionController>("allAppsProgress") {

src/com/android/launcher3/allapps/DiscoveryBounce.java

@@ -31,9 +31,9 @@ import android.view.MotionEvent;
 import com.android.launcher3.AbstractFloatingView;
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherState;
-import com.android.launcher3.LauncherStateManager.StateListener;
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
+import com.android.launcher3.statemanager.StateManager.StateListener;
 import com.android.launcher3.util.OnboardingPrefs;
 
 /**
@@ -46,7 +46,7 @@ public class DiscoveryBounce extends AbstractFloatingView {
     private final Launcher mLauncher;
     private final Animator mDiscoBounceAnimation;
 
-    private final StateListener mStateListener = new StateListener() {
+    private final StateListener<LauncherState> mStateListener = new StateListener<LauncherState>() {
         @Override
         public void onStateTransitionStart(LauncherState toState) {
             handleClose(false);

src/com/android/launcher3/allapps/LauncherAllAppsContainerView.java

@@ -22,7 +22,7 @@ import android.view.MotionEvent;
 
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherState;
-import com.android.launcher3.LauncherStateManager;
+import com.android.launcher3.statemanager.StateManager.StateListener;
 import com.android.launcher3.views.WorkEduView;
 
 /**
@@ -32,7 +32,7 @@ public class LauncherAllAppsContainerView extends AllAppsContainerView {
 
     private final Launcher mLauncher;
 
-    private LauncherStateManager.StateListener mWorkTabListener;
+    private StateListener<LauncherState> mWorkTabListener;
 
     public LauncherAllAppsContainerView(Context context) {
         this(context, null);

src/com/android/launcher3/anim/PendingAnimation.java

@@ -105,6 +105,13 @@ public class PendingAnimation implements PropertySetter {
         add(anim);
     }
 
+    public <T> void addFloat(T target, FloatProperty<T> property, float from, float to,
+            TimeInterpolator interpolator) {
+        Animator anim = ObjectAnimator.ofFloat(target, property, from, to);
+        anim.setDuration(mDuration).setInterpolator(interpolator);
+        add(anim);
+    }
+
     @Override
     public <T> void setInt(T target, IntProperty<T> property, int value,
             TimeInterpolator interpolator) {

src/com/android/launcher3/dragndrop/DragController.java

@@ -186,8 +186,7 @@ public class DragController implements DragDriver.EventListener, TouchController
 
         mDragObject.dragSource = source;
         mDragObject.dragInfo = dragInfo;
-        mDragObject.originalDragInfo = new ItemInfo();
+        mDragObject.originalDragInfo = mDragObject.dragInfo.makeShallowCopy();
-        mDragObject.originalDragInfo.copyFrom(dragInfo);
 
         if (dragOffset != null) {
             dragView.setDragVisualizeOffset(new Point(dragOffset));

src/com/android/launcher3/dragndrop/DragLayer.java

@@ -274,19 +274,29 @@ public class DragLayer extends BaseDragLayer<Launcher> {
         scale *= childScale;
         int toX = Math.round(coord[0]);
         int toY = Math.round(coord[1]);
+
         float toScale = scale;
 
         if (child instanceof DraggableView) {
+            // This code is fairly subtle. Please verify drag and drop is pixel-perfect in a number
+            // of scenarios before modifying (from all apps, from workspace, different grid-sizes,
+            // shortcuts from in and out of Launcher etc).
             DraggableView d = (DraggableView) child;
-            d.getVisualDragBounds(dragViewBounds);
+            Rect destRect = new Rect();
+            d.getWorkspaceVisualDragBounds(destRect);
+
+            // In most cases this additional scale factor should be a no-op (1). It mainly accounts
+            // for alternate grids where the source and destination icon sizes are different
+            toScale *= ((1f * destRect.width())
+                    / (dragView.getMeasuredWidth() - dragView.getBlurSizeOutline()));
 
             // This accounts for the offset of the DragView created by scaling it about its
             // center as it animates into place.
-            float scaleShiftX = dragView.getMeasuredWidth() * (1 - scale) / 2;
+            float scaleShiftX = dragView.getMeasuredWidth() * (1 - toScale) / 2;
-            float scaleShiftY = dragView.getMeasuredHeight() * (1 - scale) / 2;
+            float scaleShiftY = dragView.getMeasuredHeight() * (1 - toScale) / 2;
 
-            toX += scale * (dragViewBounds.left - dragView.getBlurSizeOutline() / 2) - scaleShiftX;
+            toX += scale * destRect.left - toScale * dragView.getBlurSizeOutline() / 2 - scaleShiftX;
-            toY += scale * (dragViewBounds.top - dragView.getBlurSizeOutline() / 2) - scaleShiftY;
+            toY += scale * destRect.top - toScale * dragView.getBlurSizeOutline() / 2 - scaleShiftY;
         }
 
         child.setVisibility(INVISIBLE);

src/com/android/launcher3/dragndrop/DragView.java

@@ -49,18 +49,18 @@ import com.android.launcher3.FirstFrameAnimatorHelper;
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherSettings;
 import com.android.launcher3.LauncherState;
-import com.android.launcher3.LauncherStateManager;
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.anim.Interpolators;
 import com.android.launcher3.icons.LauncherIcons;
 import com.android.launcher3.model.data.ItemInfo;
+import com.android.launcher3.statemanager.StateManager.StateListener;
 import com.android.launcher3.util.Themes;
 import com.android.launcher3.util.Thunk;
 
 import java.util.Arrays;
 
-public class DragView extends View implements LauncherStateManager.StateListener {
+public class DragView extends View implements StateListener<LauncherState> {
     private static final ColorMatrix sTempMatrix1 = new ColorMatrix();
     private static final ColorMatrix sTempMatrix2 = new ColorMatrix();
 

src/com/android/launcher3/dragndrop/DraggableView.java

@@ -18,6 +18,10 @@ package com.android.launcher3.dragndrop;
 
 import android.graphics.Rect;
 
+import androidx.annotation.NonNull;
+
+import com.android.launcher3.util.SafeCloseable;
+
 /**
  * Interface defining methods required for drawing and previewing DragViews, drag previews, and
  * related animations
@@ -42,9 +46,12 @@ public interface DraggableView {
     int getViewType();
 
     /**
-     * Before rendering as a DragView bitmap, some views need a preparation step.
+     * Before rendering as a DragView bitmap, some views need a preparation step. Returns a
+     * callback to clear any preparation work
      */
-    default void prepareDrawDragView() { }
+    @NonNull default SafeCloseable prepareDrawDragView() {
+        return () -> { };
+    }
 
     /**
      * If an actual View subclass, this method returns the rectangle (within the View's coordinates)
@@ -53,5 +60,14 @@ public interface DraggableView {
      *
      * @param bounds Visual bounds in the views coordinates will be written here.
      */
-    default void getVisualDragBounds(Rect bounds) { }
+    default void getWorkspaceVisualDragBounds(Rect bounds) { }
+
+    /**
+     * Same as above, but accounts for differing icon sizes between source and destination
+     *
+     * @param bounds Visual bounds in the views coordinates will be written here.
+     */
+    default void getSourceVisualDragBounds(Rect bounds) {
+        getWorkspaceVisualDragBounds(bounds);
+    }
 }

src/com/android/launcher3/folder/Folder.java

@@ -87,6 +87,7 @@ import com.android.launcher3.dragndrop.DragController;
 import com.android.launcher3.dragndrop.DragController.DragListener;
 import com.android.launcher3.dragndrop.DragLayer;
 import com.android.launcher3.dragndrop.DragOptions;
+import com.android.launcher3.logging.StatsLogManager;
 import com.android.launcher3.model.data.AppInfo;
 import com.android.launcher3.model.data.FolderInfo;
 import com.android.launcher3.model.data.FolderInfo.FolderListener;
@@ -1346,6 +1347,10 @@ public class Folder extends AbstractFloatingView implements ClipPathView, DragSo
         if (d.stateAnnouncer != null) {
             d.stateAnnouncer.completeAction(R.string.item_moved);
         }
+        StatsLogManager.newInstance(getContext())
+                .log(StatsLogManager.LauncherEvent.LAUNCHER_ITEM_DROP_COMPLETED,
+                    d.logInstanceId,
+                    d.dragInfo.buildProto(mInfo));
     }
 
     // This is used so the item doesn't immediately appear in the folder when added. In one case

src/com/android/launcher3/folder/FolderIcon.java

@@ -53,6 +53,7 @@ import com.android.launcher3.R;
 import com.android.launcher3.Reorderable;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.Workspace;
+import com.android.launcher3.allapps.AllAppsContainerView;
 import com.android.launcher3.anim.Interpolators;
 import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.dot.FolderDotInfo;
@@ -85,7 +86,7 @@ public class FolderIcon extends FrameLayout implements FolderListener, IconLabel
 
     @Thunk ActivityContext mActivity;
     @Thunk Folder mFolder;
-    private FolderInfo mInfo;
+    public FolderInfo mInfo;
 
     private CheckLongPressHelper mLongPressHelper;
 
@@ -385,6 +386,14 @@ public class FolderIcon extends FrameLayout implements FolderListener, IconLabel
             float finalAlpha = index < MAX_NUM_ITEMS_IN_PREVIEW ? 0.5f : 0f;
 
             float finalScale = scale * scaleRelativeToDragLayer;
+
+            // Account for potentially different icon sizes with non-default grid settings
+            if (d.dragSource instanceof AllAppsContainerView) {
+                DeviceProfile grid = mActivity.getDeviceProfile();
+                float containerScale = (1f * grid.iconSizePx / grid.allAppsIconSizePx);
+                finalScale *= containerScale;
+            }
+
             dragLayer.animateView(animateView, from, to, finalAlpha,
                     1, 1, finalScale, finalScale, DROP_IN_ANIMATION_DURATION,
                     Interpolators.DEACCEL_2, Interpolators.ACCEL_2,
@@ -758,7 +767,7 @@ public class FolderIcon extends FrameLayout implements FolderListener, IconLabel
     }
 
     @Override
-    public void getVisualDragBounds(Rect bounds) {
+    public void getWorkspaceVisualDragBounds(Rect bounds) {
         getPreviewBounds(bounds);
     }
 }