From 672d02cd394781c076ae70f64c2169f148da9e7a Mon Sep 17 00:00:00 2001
From: Sunny Goyal <sunnygoyal@google.com>
Date: Wed, 13 May 2020 09:28:25 -0700
Subject: [PATCH] Unifying swipe handling for fallback launcher

Previosuly we had a different swipe handler for 3P Launcher which
started either recents or Launcher based on the initial interaction
(horizontal or vertical). This was primarily because we had to wait
for recents transition to finish before starting another activity
which could delay going to home.

Now we always start recents transition to recentsActivity. This allows
us to use the same swipe handling logic as QuickstepLauncher. Home
activity can be started while recents transition is running and can be
controlled using onTaskAppeared callback.

Bug: 156924169
Bug: 156398988
Bug: 156295255
Change-Id: Ib9f02e0281e8d674bde2f4a81eca5fc8a5962144
---
 .../res/layout/fallback_recents_activity.xml  |   1 +
 .../QuickstepAtomicAnimationFactory.java      |  69 +--
 .../AppToOverviewAnimationProvider.java       |   1 -
 .../android/quickstep/BaseSwipeUpHandler.java |   5 +-
 ...Handler.java => BaseSwipeUpHandlerV2.java} | 119 +---
 .../quickstep/FallbackActivityInterface.java  |  78 +--
 .../quickstep/FallbackSwipeHandler.java       | 582 +++---------------
 .../quickstep/LauncherActivityInterface.java  | 237 ++-----
 .../quickstep/LauncherSwipeHandlerV2.java     | 121 ++++
 .../android/quickstep/RecentsActivity.java    |   7 +
 .../quickstep/TouchInteractionService.java    |  15 +-
 .../fallback/FallbackRecentsView.java         |  51 +-
 .../DeviceLockedInputConsumer.java            |   2 +-
 .../OtherActivityInputConsumer.java           |  10 +-
 .../util/RecentsAtomicAnimationFactory.java   |  67 ++
 .../quickstep/views/ClearAllButton.java       |  15 +-
 .../android/quickstep/views/RecentsView.java  |  12 +-
 .../quickstep/BaseActivityInterface.java      | 128 +++-
 .../launcher3/statemanager/StateManager.java  |   2 +
 19 files changed, 603 insertions(+), 919 deletions(-)
 rename quickstep/recents_ui_overrides/src/com/android/quickstep/{LauncherSwipeHandler.java => BaseSwipeUpHandlerV2.java} (92%)
 create mode 100644 quickstep/recents_ui_overrides/src/com/android/quickstep/LauncherSwipeHandlerV2.java
 create mode 100644 quickstep/recents_ui_overrides/src/com/android/quickstep/util/RecentsAtomicAnimationFactory.java

diff --git a/quickstep/recents_ui_overrides/res/layout/fallback_recents_activity.xml b/quickstep/recents_ui_overrides/res/layout/fallback_recents_activity.xml
index ffe906c179..7b3e37835f 100644
--- a/quickstep/recents_ui_overrides/res/layout/fallback_recents_activity.xml
+++ b/quickstep/recents_ui_overrides/res/layout/fallback_recents_activity.xml
@@ -18,6 +18,7 @@
     android:id="@+id/drag_layer"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
+    android:clipChildren="false"
     android:fitsSystemWindows="true">
 
     <com.android.quickstep.fallback.FallbackRecentsView
diff --git a/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/states/QuickstepAtomicAnimationFactory.java b/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/states/QuickstepAtomicAnimationFactory.java
index 11593a16c1..94c7771513 100644
--- a/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/states/QuickstepAtomicAnimationFactory.java
+++ b/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/states/QuickstepAtomicAnimationFactory.java
@@ -49,64 +49,62 @@ import static com.android.launcher3.states.StateAnimationConfig.ANIM_WORKSPACE_S
 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.Launcher;
 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.util.RecentsAtomicAnimationFactory;
 import com.android.quickstep.views.RecentsView;
 
 /**
  * Animation factory for quickstep specific transitions
  */
-public class QuickstepAtomicAnimationFactory extends AtomicAnimationFactory<LauncherState> {
+public class QuickstepAtomicAnimationFactory extends
+        RecentsAtomicAnimationFactory<Launcher, 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 int INDEX_SHELF_ANIM = RecentsAtomicAnimationFactory.NEXT_INDEX + 0;
+    public static final int INDEX_PAUSE_TO_OVERVIEW_ANIM =
+            RecentsAtomicAnimationFactory.NEXT_INDEX + 1;
+
+    private static final int MY_ANIM_COUNT = 2;
+    protected static final int NEXT_INDEX = RecentsAtomicAnimationFactory.NEXT_INDEX
+            + MY_ANIM_COUNT;
 
     public static final long ATOMIC_DURATION_FROM_PAUSED_TO_OVERVIEW = 300;
 
-    private final QuickstepLauncher mLauncher;
-
-    public QuickstepAtomicAnimationFactory(QuickstepLauncher launcher) {
-        super(ANIM_COUNT);
-        mLauncher = launcher;
+    public QuickstepAtomicAnimationFactory(QuickstepLauncher activity) {
+        super(activity, MY_ANIM_COUNT);
     }
 
     @Override
     public Animator createStateElementAnimation(int index, float... values) {
         switch (index) {
             case INDEX_SHELF_ANIM: {
-                AllAppsTransitionController aatc = mLauncher.getAllAppsController();
+                AllAppsTransitionController aatc = mActivity.getAllAppsController();
                 Animator springAnim = aatc.createSpringAnimation(values);
 
-                if ((OVERVIEW.getVisibleElements(mLauncher) & HOTSEAT_ICONS) != 0) {
+                if ((OVERVIEW.getVisibleElements(mActivity) & HOTSEAT_ICONS) != 0) {
                     // Translate hotseat with the shelf until reaching overview.
-                    float overviewProgress = OVERVIEW.getVerticalProgress(mLauncher);
-                    ScaleAndTranslation sat = OVERVIEW.getHotseatScaleAndTranslation(mLauncher);
+                    float overviewProgress = OVERVIEW.getVerticalProgress(mActivity);
+                    ScaleAndTranslation sat = OVERVIEW.getHotseatScaleAndTranslation(mActivity);
                     float shiftRange = aatc.getShiftRange();
                     if (values.length == 1) {
                         values = new float[] {aatc.getProgress(), values[0]};
@@ -114,9 +112,9 @@ public class QuickstepAtomicAnimationFactory extends AtomicAnimationFactory<Laun
                     ValueAnimator hotseatAnim = ValueAnimator.ofFloat(values);
                     hotseatAnim.addUpdateListener(anim -> {
                         float progress = (Float) anim.getAnimatedValue();
-                        if (progress >= overviewProgress || mLauncher.isInState(BACKGROUND_APP)) {
+                        if (progress >= overviewProgress || mActivity.isInState(BACKGROUND_APP)) {
                             float hotseatShift = (progress - overviewProgress) * shiftRange;
-                            mLauncher.getHotseat().setTranslationY(hotseatShift + sat.translationY);
+                            mActivity.getHotseat().setTranslationY(hotseatShift + sat.translationY);
                         }
                     });
                     hotseatAnim.setInterpolator(LINEAR);
@@ -130,34 +128,21 @@ public class QuickstepAtomicAnimationFactory extends AtomicAnimationFactory<Laun
 
                 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) {
+                if ((OVERVIEW.getVisibleElements(mActivity) & HOTSEAT_ICONS) != 0) {
                     config.setInterpolator(ANIM_HOTSEAT_SCALE, OVERSHOOT_1_2);
                     config.setInterpolator(ANIM_HOTSEAT_TRANSLATE, OVERSHOOT_1_2);
                 }
 
-                StateManager<LauncherState> stateManager = mLauncher.getStateManager();
+                StateManager<LauncherState> stateManager = mActivity.getStateManager();
                 return stateManager.createAtomicAnimation(
                         stateManager.getCurrentStableState(), OVERVIEW, config);
             }
-
             default:
                 return super.createStateElementAnimation(index, values);
         }
@@ -172,7 +157,7 @@ public class QuickstepAtomicAnimationFactory extends AtomicAnimationFactory<Laun
             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();
+            Workspace workspace = mActivity.getWorkspace();
 
             // Start from a higher workspace scale, but only if we're invisible so we don't jump.
             boolean isWorkspaceVisible = workspace.getVisibility() == VISIBLE;
@@ -186,13 +171,13 @@ public class QuickstepAtomicAnimationFactory extends AtomicAnimationFactory<Laun
                 workspace.setScaleX(0.92f);
                 workspace.setScaleY(0.92f);
             }
-            Hotseat hotseat = mLauncher.getHotseat();
+            Hotseat hotseat = mActivity.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();
+                    AllAppsContainerView qsbContainer = mActivity.getAppsView();
                     View qsb = qsbContainer.getSearchView();
                     boolean qsbVisible = qsb.getVisibility() == VISIBLE && qsb.getAlpha() > 0;
                     if (!qsbVisible) {
@@ -209,7 +194,7 @@ public class QuickstepAtomicAnimationFactory extends AtomicAnimationFactory<Laun
             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) {
+            if (SysUINavigationMode.getMode(mActivity) == NO_BUTTON) {
                 config.setInterpolator(ANIM_WORKSPACE_SCALE,
                         fromState == NORMAL ? ACCEL : OVERSHOOT_1_2);
                 config.setInterpolator(ANIM_WORKSPACE_TRANSLATE, ACCEL);
@@ -217,7 +202,7 @@ public class QuickstepAtomicAnimationFactory extends AtomicAnimationFactory<Laun
                 config.setInterpolator(ANIM_WORKSPACE_SCALE, OVERSHOOT_1_2);
 
                 // Scale up the recents, if it is not coming from the side
-                RecentsView overview = mLauncher.getOverviewPanel();
+                RecentsView overview = mActivity.getOverviewPanel();
                 if (overview.getVisibility() != VISIBLE || overview.getContentAlpha() == 0) {
                     SCALE_PROPERTY.set(overview, RECENTS_PREPARE_SCALE);
                 }
@@ -225,7 +210,7 @@ public class QuickstepAtomicAnimationFactory extends AtomicAnimationFactory<Laun
             config.setInterpolator(ANIM_WORKSPACE_FADE, OVERSHOOT_1_2);
             config.setInterpolator(ANIM_OVERVIEW_SCALE, OVERSHOOT_1_2);
             Interpolator translationInterpolator = ENABLE_OVERVIEW_ACTIONS.get()
-                    && removeShelfFromOverview(mLauncher)
+                    && removeShelfFromOverview(mActivity)
                     ? OVERSHOOT_1_2
                     : OVERSHOOT_1_7;
             config.setInterpolator(ANIM_OVERVIEW_TRANSLATE_X, translationInterpolator);
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/AppToOverviewAnimationProvider.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/AppToOverviewAnimationProvider.java
index dc8fb9e124..f4d16291cf 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/AppToOverviewAnimationProvider.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/AppToOverviewAnimationProvider.java
@@ -77,7 +77,6 @@ final class AppToOverviewAnimationProvider<T extends StatefulActivity<?>> extend
                     controller.dispatchOnStart();
                     controller.getAnimationPlayer().end();
                 });
-        factory.onRemoteAnimationReceived(null);
         factory.createActivityInterface(RECENTS_LAUNCH_DURATION);
         factory.setRecentsAttachedToAppWindow(true, false);
         mActivity = activity;
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/BaseSwipeUpHandler.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/BaseSwipeUpHandler.java
index 66fefbe5ef..d9574184f7 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/BaseSwipeUpHandler.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/BaseSwipeUpHandler.java
@@ -55,7 +55,6 @@ import com.android.launcher3.views.FloatingIconView;
 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.RectFSpringAnim;
 import com.android.quickstep.util.TaskViewSimulator;
 import com.android.quickstep.util.TransformParams;
@@ -511,8 +510,8 @@ public abstract class BaseSwipeUpHandler<T extends StatefulActivity<?>, Q extend
 
     public interface Factory {
 
-        BaseSwipeUpHandler newHandler(GestureState gestureState, long touchTimeMs,
-                boolean continuingLastGesture, boolean isLikelyToStartNewTask);
+        BaseSwipeUpHandler newHandler(
+                GestureState gestureState, long touchTimeMs, boolean continuingLastGesture);
     }
 
     protected interface RunningWindowAnim {
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/LauncherSwipeHandler.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/BaseSwipeUpHandlerV2.java
similarity index 92%
rename from quickstep/recents_ui_overrides/src/com/android/quickstep/LauncherSwipeHandler.java
rename to quickstep/recents_ui_overrides/src/com/android/quickstep/BaseSwipeUpHandlerV2.java
index a8fa630b7b..343f28ac3d 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/LauncherSwipeHandler.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/BaseSwipeUpHandlerV2.java
@@ -17,7 +17,6 @@ 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.NORMAL;
 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;
@@ -38,29 +37,24 @@ import static com.android.quickstep.util.ShelfPeekAnim.ShelfAnimState.PEEK;
 import static com.android.quickstep.views.RecentsView.UPDATE_SYSUI_FLAGS_THRESHOLD;
 
 import android.animation.Animator;
-import android.animation.AnimatorSet;
 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.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;
 import android.view.WindowInsets;
 import android.view.animation.Interpolator;
 
-import androidx.annotation.NonNull;
 import androidx.annotation.UiThread;
 
 import com.android.launcher3.AbstractFloatingView;
 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;
@@ -72,7 +66,6 @@ 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.GestureState.GestureEndTarget;
 import com.android.quickstep.inputconsumers.OverviewInputConsumer;
@@ -80,7 +73,6 @@ import com.android.quickstep.util.ActiveGestureLog;
 import com.android.quickstep.util.RectFSpringAnim;
 import com.android.quickstep.util.ShelfPeekAnim;
 import com.android.quickstep.util.ShelfPeekAnim.ShelfAnimState;
-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;
@@ -92,11 +84,12 @@ import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
 
 /**
  * Handles the navigation gestures when Launcher is the default home activity.
+ * TODO: Merge this with BaseSwipeUpHandler
  */
 @TargetApi(Build.VERSION_CODES.O)
-public class LauncherSwipeHandler extends BaseSwipeUpHandler<Launcher, RecentsView>
-        implements OnApplyWindowInsetsListener {
-    private static final String TAG = LauncherSwipeHandler.class.getSimpleName();
+public abstract class BaseSwipeUpHandlerV2<T extends StatefulActivity<?>, Q extends RecentsView>
+        extends BaseSwipeUpHandler<T, Q> implements OnApplyWindowInsetsListener {
+    private static final String TAG = BaseSwipeUpHandlerV2.class.getSimpleName();
 
     private static final String[] STATE_NAMES = DEBUG_STATES ? new String[16] : null;
 
@@ -108,9 +101,11 @@ public class LauncherSwipeHandler extends BaseSwipeUpHandler<Launcher, RecentsVi
     }
 
     // Launcher UI related states
-    private static final int STATE_LAUNCHER_PRESENT = getFlagForIndex(0, "STATE_LAUNCHER_PRESENT");
-    private static final int STATE_LAUNCHER_STARTED = getFlagForIndex(1, "STATE_LAUNCHER_STARTED");
-    private static final int STATE_LAUNCHER_DRAWN = getFlagForIndex(2, "STATE_LAUNCHER_DRAWN");
+    protected static final int STATE_LAUNCHER_PRESENT =
+            getFlagForIndex(0, "STATE_LAUNCHER_PRESENT");
+    protected static final int STATE_LAUNCHER_STARTED =
+            getFlagForIndex(1, "STATE_LAUNCHER_STARTED");
+    protected static final int STATE_LAUNCHER_DRAWN = getFlagForIndex(2, "STATE_LAUNCHER_DRAWN");
 
     // Internal initialization states
     private static final int STATE_APP_CONTROLLER_RECEIVED =
@@ -122,7 +117,7 @@ public class LauncherSwipeHandler extends BaseSwipeUpHandler<Launcher, RecentsVi
     private static final int STATE_SCALED_CONTROLLER_RECENTS =
             getFlagForIndex(5, "STATE_SCALED_CONTROLLER_RECENTS");
 
-    private static final int STATE_HANDLER_INVALIDATED =
+    protected static final int STATE_HANDLER_INVALIDATED =
             getFlagForIndex(6, "STATE_HANDLER_INVALIDATED");
     private static final int STATE_GESTURE_STARTED =
             getFlagForIndex(7, "STATE_GESTURE_STARTED");
@@ -163,7 +158,7 @@ public class LauncherSwipeHandler extends BaseSwipeUpHandler<Launcher, RecentsVi
      */
     private static final int LOG_NO_OP_PAGE_INDEX = -1;
 
-    private final TaskAnimationManager mTaskAnimationManager;
+    protected final TaskAnimationManager mTaskAnimationManager;
 
     // Either RectFSpringAnim (if animating home) or ObjectAnimator (from mCurrentShift) otherwise
     private RunningWindowAnim mRunningWindowAnim;
@@ -193,7 +188,7 @@ public class LauncherSwipeHandler extends BaseSwipeUpHandler<Launcher, RecentsVi
 
     private final Runnable mOnDeferredActivityLaunch = this::onDeferredActivityLaunch;
 
-    public LauncherSwipeHandler(Context context, RecentsAnimationDeviceState deviceState,
+    public BaseSwipeUpHandlerV2(Context context, RecentsAnimationDeviceState deviceState,
             TaskAnimationManager taskAnimationManager, GestureState gestureState,
             long touchTimeMs, boolean continuingLastGesture,
             InputConsumerController inputConsumer) {
@@ -222,9 +217,6 @@ public class LauncherSwipeHandler extends BaseSwipeUpHandler<Launcher, RecentsVi
                         | STATE_GESTURE_CANCELLED,
                 this::resetStateForAnimationCancel);
 
-        mStateCallback.runOnceAtState(STATE_LAUNCHER_STARTED | STATE_APP_CONTROLLER_RECEIVED,
-                this::sendRemoteAnimationsToAnimationFactory);
-
         mStateCallback.runOnceAtState(STATE_RESUME_LAST_TASK | STATE_APP_CONTROLLER_RECEIVED,
                 this::resumeLastTask);
         mStateCallback.runOnceAtState(STATE_START_NEW_TASK | STATE_SCREENSHOT_CAPTURED,
@@ -272,7 +264,7 @@ public class LauncherSwipeHandler extends BaseSwipeUpHandler<Launcher, RecentsVi
     @Override
     protected boolean onActivityInit(Boolean alreadyOnHome) {
         super.onActivityInit(alreadyOnHome);
-        final Launcher activity = mActivityInterface.getCreatedActivity();
+        final T activity = mActivityInterface.getCreatedActivity();
         if (mActivity == activity) {
             return true;
         }
@@ -323,7 +315,7 @@ public class LauncherSwipeHandler extends BaseSwipeUpHandler<Launcher, RecentsVi
     }
 
     private void onLauncherStart() {
-        final Launcher activity = mActivityInterface.getCreatedActivity();
+        final T activity = mActivityInterface.getCreatedActivity();
         if (mActivity != activity) {
             return;
         }
@@ -411,6 +403,10 @@ public class LauncherSwipeHandler extends BaseSwipeUpHandler<Launcher, RecentsVi
             updateSysUiFlags(mCurrentShift.value);
             return;
         }
+        notifyGestureAnimationStartToRecents();
+    }
+
+    protected void notifyGestureAnimationStartToRecents() {
         mRecentsView.onGestureAnimationStart(mGestureState.getRunningTaskId());
     }
 
@@ -418,10 +414,6 @@ public class LauncherSwipeHandler extends BaseSwipeUpHandler<Launcher, RecentsVi
         mLauncherFrameDrawnTime = SystemClock.uptimeMillis();
     }
 
-    private void sendRemoteAnimationsToAnimationFactory() {
-        mAnimationFactory.onRemoteAnimationReceived(mRecentsAnimationTargets);
-    }
-
     private void initializeLauncherAnimationController() {
         buildAnimationController();
 
@@ -633,7 +625,7 @@ public class LauncherSwipeHandler extends BaseSwipeUpHandler<Launcher, RecentsVi
      */
     @UiThread
     private void notifyGestureStartedAsync() {
-        final Launcher curActivity = mActivity;
+        final T 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
@@ -681,7 +673,7 @@ public class LauncherSwipeHandler extends BaseSwipeUpHandler<Launcher, RecentsVi
         endLauncherTransitionController();
         if (!ENABLE_QUICKSTEP_LIVE_TILE.get()) {
             // Hide the task view, if not already hidden
-            setTargetAlphaProvider(LauncherSwipeHandler::getHiddenTargetAlpha);
+            setTargetAlphaProvider(BaseSwipeUpHandlerV2::getHiddenTargetAlpha);
         }
 
         StatefulActivity activity = mActivityInterface.getCreatedActivity();
@@ -911,6 +903,8 @@ public class LauncherSwipeHandler extends BaseSwipeUpHandler<Launcher, RecentsVi
                 interpolator, target, velocityPxPerMs));
     }
 
+    protected abstract HomeAnimationFactory createHomeAnimationFactory(long duration);
+
     @UiThread
     private void animateToProgressInternal(float start, float end, long duration,
             Interpolator interpolator, GestureEndTarget target, PointF velocityPxPerMs) {
@@ -919,67 +913,7 @@ public class LauncherSwipeHandler extends BaseSwipeUpHandler<Launcher, RecentsVi
         maybeUpdateRecentsAttachedState();
 
         if (mGestureState.getEndTarget() == HOME) {
-            HomeAnimationFactory homeAnimFactory;
-            if (mActivity != null) {
-                final TaskView runningTaskView = mRecentsView.getRunningTaskView();
-                final View workspaceView;
-                if (runningTaskView != null
-                        && 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);
-                mActivityInterface.setHintUserWillBeActive();
-
-                homeAnimFactory = new HomeAnimationFactory(floatingIconView) {
-
-                    @Override
-                    public RectF getWindowTargetRect() {
-                        if (canUseWorkspaceView) {
-                            return iconLocation;
-                        } 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);
-                    }
-                };
-                mStateCallback.addChangeListener(STATE_LAUNCHER_PRESENT | STATE_HANDLER_INVALIDATED,
-                        isPresent -> mRecentsView.startHome());
-            }
+            HomeAnimationFactory homeAnimFactory = createHomeAnimationFactory(duration);
             RectFSpringAnim windowAnim = createWindowAnimationToHome(start, homeAnimFactory);
             windowAnim.addAnimatorListener(new AnimationSuccessListener() {
                 @Override
@@ -1303,14 +1237,15 @@ public class LauncherSwipeHandler extends BaseSwipeUpHandler<Launcher, RecentsVi
             // If there are no targets or the animation not started, then there is nothing to finish
             mStateCallback.setStateOnUiThread(STATE_CURRENT_TASK_FINISHED);
         } else {
-            mRecentsAnimationController.finish(true /* toRecents */,
-                    () -> mStateCallback.setStateOnUiThread(STATE_CURRENT_TASK_FINISHED),
-                    true /* sendUserLeaveHint */);
+            finishRecentsControllerToHome(
+                    () -> mStateCallback.setStateOnUiThread(STATE_CURRENT_TASK_FINISHED));
         }
         ActiveGestureLog.INSTANCE.addLog("finishRecentsAnimation", true);
         doLogGesture(HOME);
     }
 
+    protected abstract void finishRecentsControllerToHome(Runnable callback);
+
     private void setupLauncherUiAfterSwipeUpToRecentsAnimation() {
         endLauncherTransitionController();
         mActivityInterface.onSwipeUpToRecentsComplete();
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/FallbackActivityInterface.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/FallbackActivityInterface.java
index 8dfe75ef24..7d08fac363 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/FallbackActivityInterface.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/FallbackActivityInterface.java
@@ -15,27 +15,21 @@
  */
 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.RecentsState.BACKGROUND_APP;
 import static com.android.quickstep.fallback.RecentsState.DEFAULT;
-import static com.android.quickstep.views.RecentsView.CONTENT_ALPHA;
-import static com.android.quickstep.views.RecentsView.FULLSCREEN_PROGRESS;
 
 import android.content.Context;
-import android.graphics.PointF;
 import android.graphics.Rect;
+import android.view.MotionEvent;
 
 import androidx.annotation.Nullable;
 
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.R;
 import com.android.launcher3.anim.AnimatorPlaybackController;
-import com.android.launcher3.anim.PendingAnimation;
 import com.android.launcher3.touch.PagedOrientationHandler;
 import com.android.launcher3.userevent.nano.LauncherLogProto;
-import com.android.quickstep.fallback.FallbackRecentsView;
 import com.android.quickstep.fallback.RecentsState;
 import com.android.quickstep.util.ActivityInitListener;
 import com.android.quickstep.views.RecentsView;
@@ -55,9 +49,10 @@ public final class FallbackActivityInterface extends
     public static final FallbackActivityInterface INSTANCE = new FallbackActivityInterface();
 
     private FallbackActivityInterface() {
-        super(false);
+        super(false, DEFAULT, BACKGROUND_APP);
     }
 
+    /** 2 */
     @Override
     public int getSwipeUpDestinationAndLength(DeviceProfile dp, Context context, Rect outRect,
             PagedOrientationHandler orientationHandler) {
@@ -72,6 +67,13 @@ public final class FallbackActivityInterface extends
         }
     }
 
+    /** 4 */
+    @Override
+    public void onSwipeUpToHomeComplete() {
+        onSwipeUpToRecentsComplete();
+    }
+
+    /** 5 */
     @Override
     public void onAssistantVisibilityChanged(float visibility) {
         // This class becomes active when the screen is locked.
@@ -79,51 +81,13 @@ public final class FallbackActivityInterface extends
         // set to zero prior to this class becoming active.
     }
 
+    /** 6 */
     @Override
     public AnimationFactory prepareRecentsUI(
             boolean activityVisible, Consumer<AnimatorPlaybackController> callback) {
-        RecentsActivity activity = getCreatedActivity();
-        if (activity == null) {
-            return (transitionLength) -> { };
-        }
-
-        activity.getStateManager().goToState(BACKGROUND_APP);
-        FallbackRecentsView rv = activity.getOverviewPanel();
-        rv.setContentAlpha(0);
-
-        return new AnimationFactory() {
-
-            boolean isAnimatingToRecents = false;
-
-            @Override
-            public void onRemoteAnimationReceived(RemoteAnimationTargets targets) {
-                isAnimatingToRecents = targets != null && targets.isAnimatingHome();
-                if (!isAnimatingToRecents) {
-                    rv.setContentAlpha(1);
-                }
-                createActivityInterface(getSwipeUpDestinationAndLength(
-                        activity.getDeviceProfile(), activity, new Rect(),
-                        rv.getPagedOrientationHandler()));
-            }
-
-            @Override
-            public void createActivityInterface(long transitionLength) {
-                PendingAnimation pa = new PendingAnimation(transitionLength * 2);
-
-                if (isAnimatingToRecents) {
-                    pa.addFloat(rv, CONTENT_ALPHA, 0, 1, LINEAR);
-                }
-
-                pa.addFloat(rv, SCALE_PROPERTY, rv.getMaxScaleForFullScreen(), 1, LINEAR);
-                pa.addFloat(rv, FULLSCREEN_PROGRESS, 1, 0, LINEAR);
-                AnimatorPlaybackController controller = pa.createPlaybackController();
-
-                // Since we are changing the start position of the UI, reapply the state, at the end
-                controller.setEndAction(() -> activity.getStateManager().goToState(
-                        controller.getInterpolatedProgress() > 0.5 ? DEFAULT : BACKGROUND_APP));
-                callback.accept(controller);
-            }
-        };
+        DefaultAnimationFactory factory = new DefaultAnimationFactory(callback);
+        factory.initUI();
+        return factory;
     }
 
     @Override
@@ -166,6 +130,15 @@ public final class FallbackActivityInterface extends
         return false;
     }
 
+    @Override
+    public boolean deferStartingActivity(RecentsAnimationDeviceState deviceState, MotionEvent ev) {
+        // In non-gesture mode, user might be clicking on the home button which would directly
+        // start the home activity instead of going through recents. In that case, defer starting
+        // recents until we are sure it is a gesture.
+        return !deviceState.isFullyGesturalNavMode()
+                || super.deferStartingActivity(deviceState, ev);
+    }
+
     @Override
     public int getContainerType() {
         RecentsActivity activity = getCreatedActivity();
@@ -190,11 +163,6 @@ public final class FallbackActivityInterface extends
         activity.<RecentsView>getOverviewPanel().startHome();
     }
 
-    @Override
-    public void getMultiWindowSize(Context context, DeviceProfile dp, PointF out) {
-        out.set(dp.widthPx, dp.heightPx);
-    }
-
     @Override
     protected float getExtraSpace(Context context, DeviceProfile dp,
             PagedOrientationHandler orientationHandler) {
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/FallbackSwipeHandler.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/FallbackSwipeHandler.java
index db41bd6fd4..7b614c24bc 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/FallbackSwipeHandler.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/FallbackSwipeHandler.java
@@ -15,537 +15,117 @@
  */
 package com.android.quickstep;
 
-import static com.android.launcher3.anim.Interpolators.ACCEL_1_5;
-import static com.android.launcher3.anim.Interpolators.ACCEL_2;
-import static com.android.quickstep.GestureState.GestureEndTarget.HOME;
-import static com.android.quickstep.GestureState.GestureEndTarget.LAST_TASK;
-import static com.android.quickstep.GestureState.GestureEndTarget.NEW_TASK;
-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.views.RecentsView.UPDATE_SYSUI_FLAGS_THRESHOLD;
+import static com.android.launcher3.anim.Interpolators.LINEAR;
+import static com.android.systemui.shared.system.RemoteAnimationTargetCompat.ACTIVITY_TYPE_HOME;
 
-import android.animation.Animator;
-import android.animation.AnimatorSet;
 import android.app.ActivityOptions;
 import android.content.Context;
 import android.content.Intent;
-import android.graphics.PointF;
-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 androidx.annotation.NonNull;
+
 import com.android.launcher3.anim.AnimatorPlaybackController;
-import com.android.launcher3.util.ObjectWrapper;
-import com.android.quickstep.BaseActivityInterface.AnimationFactory;
-import com.android.quickstep.GestureState.GestureEndTarget;
+import com.android.launcher3.anim.PendingAnimation;
 import com.android.quickstep.fallback.FallbackRecentsView;
-import com.android.quickstep.util.RectFSpringAnim;
-import com.android.systemui.shared.recents.model.ThumbnailData;
+import com.android.quickstep.util.TransformParams;
 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;
+import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplierCompat.SurfaceParams.Builder;
 
 /**
  * Handles the navigation gestures when a 3rd party launcher is the default home activity.
  */
-public class FallbackSwipeHandler extends BaseSwipeUpHandler<RecentsActivity, FallbackRecentsView> {
+public class FallbackSwipeHandler extends
+        BaseSwipeUpHandlerV2<RecentsActivity, FallbackRecentsView> {
 
-    private static final String[] STATE_NAMES = DEBUG_STATES ? new String[5] : null;
-
-    private static int getFlagForIndex(int index, String name) {
-        if (DEBUG_STATES) {
-            STATE_NAMES[index] = name;
-        }
-        return 1 << index;
-    }
-
-    private static final int STATE_RECENTS_PRESENT =
-            getFlagForIndex(0, "STATE_RECENTS_PRESENT");
-    private static final int STATE_HANDLER_INVALIDATED =
-            getFlagForIndex(1, "STATE_HANDLER_INVALIDATED");
-
-    private static final int STATE_GESTURE_CANCELLED =
-            getFlagForIndex(2, "STATE_GESTURE_CANCELLED");
-    private static final int STATE_GESTURE_COMPLETED =
-            getFlagForIndex(3, "STATE_GESTURE_COMPLETED");
-    private static final int STATE_APP_CONTROLLER_RECEIVED =
-            getFlagForIndex(4, "STATE_APP_CONTROLLER_RECEIVED");
-
-    public static class EndTargetAnimationParams {
-        private final float mEndProgress;
-        private final long mDurationMultiplier;
-        private final float mLauncherAlpha;
-
-        EndTargetAnimationParams(float endProgress, long durationMultiplier, float launcherAlpha) {
-            mEndProgress = endProgress;
-            mDurationMultiplier = durationMultiplier;
-            mLauncherAlpha = launcherAlpha;
-        }
-    }
-    private final ArrayMap<GestureEndTarget, EndTargetAnimationParams>
-            mEndTargetAnimationParams = new ArrayMap();
-
-    private final AnimatedFloat mLauncherAlpha = new AnimatedFloat(this::onLauncherAlphaChanged);
-
-    private boolean mOverviewThresholdPassed = false;
-
-    private final boolean mInQuickSwitchMode;
-    private final boolean mContinuingLastGesture;
+    private FallbackHomeAnimationFactory mActiveAnimationFactory;
     private final boolean mRunningOverHome;
-    private final boolean mSwipeUpOverHome;
-    private boolean mTouchedHomeDuringTransition;
-
-    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);
+            TaskAnimationManager taskAnimationManager, GestureState gestureState, long touchTimeMs,
+            boolean continuingLastGesture, InputConsumerController inputConsumer) {
+        super(context, deviceState, taskAnimationManager, gestureState, touchTimeMs,
+                continuingLastGesture, inputConsumer);
 
-        mInQuickSwitchMode = isLikelyToStartNewTask || continuingLastGesture;
-        mContinuingLastGesture = continuingLastGesture;
         mRunningOverHome = ActivityManagerWrapper.isHomeTask(mGestureState.getRunningTask());
-        mSwipeUpOverHome = mRunningOverHome && !mInQuickSwitchMode;
-
-        // Keep the home launcher invisible until we decide to land there.
-        mLauncherAlpha.value = mRunningOverHome ? 1 : 0;
-        if (mSwipeUpOverHome) {
-            mTransformParams.setBaseAlphaCallback((t, a) -> 1 - mLauncherAlpha.value);
-        } else {
-            mTransformParams.setBaseAlphaCallback((t, a) -> mLauncherAlpha.value);
-        }
-
-        // Going home has an extra long progress to ensure that it animates into the screen
-        mEndTargetAnimationParams.put(HOME, new EndTargetAnimationParams(3, 100, 1));
-        mEndTargetAnimationParams.put(RECENTS, new EndTargetAnimationParams(1, 300, 0));
-        mEndTargetAnimationParams.put(LAST_TASK, new EndTargetAnimationParams(0, 150, 1));
-        mEndTargetAnimationParams.put(NEW_TASK, new EndTargetAnimationParams(0, 150, 1));
-
-        initAfterSubclassConstructor();
-        initStateCallbacks();
-    }
-
-    private void initStateCallbacks() {
-        mStateCallback = new MultiStateCallback(STATE_NAMES);
-
-        mStateCallback.runOnceAtState(STATE_HANDLER_INVALIDATED,
-                this::onHandlerInvalidated);
-        mStateCallback.runOnceAtState(STATE_RECENTS_PRESENT | STATE_HANDLER_INVALIDATED,
-                this::onHandlerInvalidatedWithRecents);
-
-        mStateCallback.runOnceAtState(STATE_GESTURE_CANCELLED | STATE_APP_CONTROLLER_RECEIVED,
-                this::finishAnimationTargetSetAnimationComplete);
-
-        if (mInQuickSwitchMode) {
-            mStateCallback.runOnceAtState(STATE_GESTURE_COMPLETED | STATE_APP_CONTROLLER_RECEIVED
-                            | STATE_RECENTS_PRESENT,
-                    this::finishAnimationTargetSet);
-        } else {
-            mStateCallback.runOnceAtState(STATE_GESTURE_COMPLETED | STATE_APP_CONTROLLER_RECEIVED,
-                    this::finishAnimationTargetSet);
-        }
-    }
-
-    private void onLauncherAlphaChanged() {
-        if (mRecentsAnimationTargets != null && mGestureState.getEndTarget() == null) {
-            applyWindowTransform();
-        }
     }
 
     @Override
-    protected boolean onActivityInit(Boolean alreadyOnHome) {
-        super.onActivityInit(alreadyOnHome);
-        mActivity = mActivityInterface.getCreatedActivity();
-        mRecentsView = mActivity.getOverviewPanel();
-        mRecentsView.setOnPageTransitionEndCallback(null);
-        linkRecentsViewScroll();
-        if (!mContinuingLastGesture) {
-            if (mRunningOverHome) {
-                mRecentsView.onGestureAnimationStart(mGestureState.getRunningTask());
-            } else {
-                mRecentsView.onGestureAnimationStart(mGestureState.getRunningTaskId());
-            }
-        }
-        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;
-    }
-
-    @Override
-    public void initWhenReady(Intent intent) {
-        if (mInQuickSwitchMode) {
-            // Only init if we are in quickswitch mode
-            super.initWhenReady(intent);
-        }
-    }
-
-    @Override
-    public void updateDisplacement(float displacement) {
-        if (!mInQuickSwitchMode) {
-            super.updateDisplacement(displacement);
-        }
-    }
-
-    @Override
-    protected InputConsumer createNewInputProxyHandler() {
-        // Just consume all input on the active task
-        return new InputConsumer() {
-            @Override
-            public int getType() {
-                return InputConsumer.TYPE_NO_OP;
-            }
-
-            @Override
-            public void onMotionEvent(MotionEvent ev) {
-                mTouchedHomeDuringTransition = true;
-            }
-        };
-    }
-
-    @Override
-    public void onMotionPauseChanged(boolean isPaused) {
-        if (!mInQuickSwitchMode && mDeviceState.isFullyGesturalNavMode()) {
-            updateOverviewThresholdPassed(isPaused);
-        }
-    }
-
-    private void updateOverviewThresholdPassed(boolean passed) {
-        if (passed != mOverviewThresholdPassed) {
-            mOverviewThresholdPassed = passed;
-            if (mSwipeUpOverHome) {
-                mLauncherAlpha.animateToValue(mLauncherAlpha.value, passed ? 0 : 1)
-                        .setDuration(150).start();
-            }
-            performHapticFeedback();
-        }
-    }
-
-    @Override
-    public Intent getLaunchIntent() {
-        if (mInQuickSwitchMode || mSwipeUpOverHome || !mDeviceState.isFullyGesturalNavMode()) {
-            return mGestureState.getOverviewIntent();
-        } else {
-            return mGestureState.getHomeIntent();
-        }
-    }
-
-    @Override
-    public void updateFinalShift() {
-        mTransformParams.setProgress(mCurrentShift.value);
-        if (mRecentsAnimationController != null) {
-            boolean swipeUpThresholdPassed = mCurrentShift.value > 1 - UPDATE_SYSUI_FLAGS_THRESHOLD;
-            mRecentsAnimationController.setUseLauncherSystemBarFlags(mInQuickSwitchMode
-                    || swipeUpThresholdPassed);
-            mRecentsAnimationController.setSplitScreenMinimized(!mInQuickSwitchMode
-                    && swipeUpThresholdPassed);
-        }
-
-        if (!mInQuickSwitchMode && !mDeviceState.isFullyGesturalNavMode()) {
-            updateOverviewThresholdPassed(mCurrentShift.value >= MIN_PROGRESS_FOR_OVERVIEW);
-        }
-
-        applyWindowTransform();
-        updateLauncherTransitionProgress();
-    }
-
-    @Override
-    public void onGestureCancelled() {
-        updateDisplacement(0);
-        mGestureState.setEndTarget(LAST_TASK);
-        mStateCallback.setStateOnUiThread(STATE_GESTURE_CANCELLED);
-    }
-
-    @Override
-    public void onGestureEnded(float endVelocity, PointF velocity, PointF downPos) {
-        mEndVelocityPxPerMs.set(0, velocity.y / 1000);
-        if (mInQuickSwitchMode) {
-            // For now set it to non-null, it will be reset before starting the animation
-            mGestureState.setEndTarget(LAST_TASK);
-        } else {
-            float flingThreshold = mContext.getResources()
-                    .getDimension(R.dimen.quickstep_fling_threshold_velocity);
-            boolean isFling = Math.abs(endVelocity) > flingThreshold;
-
-            if (mDeviceState.isFullyGesturalNavMode()) {
-                if (isFling) {
-                    mGestureState.setEndTarget(endVelocity < 0 ? HOME : LAST_TASK);
-                } else if (mOverviewThresholdPassed) {
-                    mGestureState.setEndTarget(RECENTS);
-                } else {
-                    mGestureState.setEndTarget(mCurrentShift.value >= MIN_PROGRESS_FOR_OVERVIEW
-                            ? HOME
-                            : LAST_TASK);
-                }
-            } else {
-                GestureEndTarget startState = mSwipeUpOverHome ? HOME : LAST_TASK;
-                if (isFling) {
-                    mGestureState.setEndTarget(endVelocity < 0 ? RECENTS : startState);
-                } else {
-                    mGestureState.setEndTarget(mCurrentShift.value >= MIN_PROGRESS_FOR_OVERVIEW
-                            ? RECENTS
-                            : startState);
-                }
-            }
-        }
-        mStateCallback.setStateOnUiThread(STATE_GESTURE_COMPLETED);
-    }
-
-    @Override
-    public void onConsumerAboutToBeSwitched() {
-        if (mInQuickSwitchMode && mGestureState.getEndTarget() != null) {
-            mGestureState.setEndTarget(NEW_TASK);
-
-            mCanceled = true;
-            mCurrentShift.cancelAnimation();
-            if (mFinishAnimation != null) {
-                mFinishAnimation.cancel();
-            }
-
-            if (mRecentsView != null) {
-                mRecentsView.setOnScrollChangeListener(null);
-            }
-        } else {
-            mStateCallback.setStateOnUiThread(STATE_HANDLER_INVALIDATED);
-        }
-    }
-
-    private void onHandlerInvalidated() {
-        mActivityInitListener.unregister();
-        if (mGestureEndCallback != null) {
-            mGestureEndCallback.run();
-        }
-        if (mFinishAnimation != null) {
-            mFinishAnimation.end();
-        }
-    }
-
-    private void onHandlerInvalidatedWithRecents() {
-        mRecentsView.onGestureAnimationEnd();
-        mRecentsView.setDisallowScrollToClearAll(false);
-        mRecentsView.getClearAllButton().setVisibilityAlpha(1);
-    }
-
-    private void finishAnimationTargetSetAnimationComplete() {
-        switch (mGestureState.getEndTarget()) {
-            case HOME: {
-                if (mSwipeUpOverHome) {
-                    mRecentsAnimationController.finish(false, null, false);
-                    // Send a home intent to clear the task stack
-                    mContext.startActivity(mGestureState.getHomeIntent());
-                } else {
-                    // Notify swipe-to-home (recents animation) is finished
-                    SystemUiProxy.INSTANCE.get(mContext).notifySwipeToHomeFinished();
-                    mRecentsAnimationController.finish(true, () -> {
-                        if (!mTouchedHomeDuringTransition) {
-                            // If the user hasn't interacted with the screen during the transition,
-                            // send a home intent so launcher can go to the default home screen.
-                            // (If they are trying to touch something, we don't want to interfere.)
-                            mContext.startActivity(mGestureState.getHomeIntent());
-                        }
-                    }, true);
-                }
-                break;
-            }
-            case LAST_TASK:
-                mRecentsAnimationController.finish(false, null, false);
-                break;
-            case RECENTS: {
-                if (mSwipeUpOverHome || !mDeviceState.isFullyGesturalNavMode()) {
-                    mRecentsAnimationController.finish(true, null, true);
-                    break;
-                }
-
-                final int runningTaskId = mGestureState.getRunningTaskId();
-                ThumbnailData thumbnail = mRecentsAnimationController.screenshotTask(runningTaskId);
-                mRecentsAnimationController.setDeferCancelUntilNextTransition(true /* defer */,
-                        false /* screenshot */);
-
-                ActivityOptions options = ActivityOptions.makeCustomAnimation(mContext, 0, 0);
-                ActivityOptionsCompat.setFreezeRecentTasksList(options);
-
-                Bundle extras = new Bundle();
-                extras.putBinder(EXTRA_THUMBNAIL, new ObjectWrapper<>(thumbnail));
-                extras.putInt(EXTRA_TASK_ID, runningTaskId);
-
-                Intent intent = new Intent(mGestureState.getOverviewIntent())
-                        .putExtras(extras);
-                mContext.startActivity(intent, options.toBundle());
-                mRecentsAnimationController.cleanupScreenshot();
-                break;
-            }
-            case NEW_TASK: {
-                startNewTask(success -> { });
-                break;
-            }
-        }
-
-        mStateCallback.setStateOnUiThread(STATE_HANDLER_INVALIDATED);
-    }
-
-    private void finishAnimationTargetSet() {
-        if (mInQuickSwitchMode) {
-            // Recalculate the end target, some views might have been initialized after
-            // gesture has ended.
-            if (mRecentsView == null || !hasTargets()) {
-                mGestureState.setEndTarget(LAST_TASK);
-            } else {
-                final int runningTaskIndex = getLastAppearedTaskIndex();
-                final int taskToLaunch = mRecentsView.getNextPage();
-                mGestureState.setEndTarget(
-                        (runningTaskIndex >= 0 && taskToLaunch != runningTaskIndex)
-                                ? NEW_TASK
-                                : LAST_TASK);
-            }
-        }
-
-        EndTargetAnimationParams params = mEndTargetAnimationParams.get(mGestureState.getEndTarget());
-        float endProgress = params.mEndProgress;
-        long duration = (long) (params.mDurationMultiplier *
-                Math.abs(endProgress - mCurrentShift.value));
-        if (mRecentsView != null) {
-            duration = Math.max(duration, mRecentsView.getScroller().getDuration());
-        }
-        if (mCurrentShift.value != endProgress || mInQuickSwitchMode) {
-            AnimationSuccessListener endListener = new AnimationSuccessListener() {
-
-                @Override
-                public void onAnimationSuccess(Animator animator) {
-                    if (mRecentsView != null) {
-                        mRecentsView.setOnPageTransitionEndCallback(FallbackSwipeHandler.this
-                                ::finishAnimationTargetSetAnimationComplete);
-                    } else {
-                        finishAnimationTargetSetAnimationComplete();
-                    }
-                    mFinishAnimation = null;
-                }
-            };
-
-            if (mGestureState.getEndTarget() == HOME && !mRunningOverHome) {
-                mRecentsAnimationController.enableInputProxy(mInputConsumer,
-                        this::createNewInputProxyHandler);
-                RectFSpringAnim anim = createWindowAnimationToHome(mCurrentShift.value, duration);
-                anim.addAnimatorListener(endListener);
-                anim.start(mContext, mEndVelocityPxPerMs);
-                mFinishAnimation = RunningWindowAnim.wrap(anim);
-            } else {
-
-                AnimatorSet anim = new AnimatorSet();
-                anim.play(mLauncherAlpha.animateToValue(
-                        mLauncherAlpha.value, params.mLauncherAlpha));
-                anim.play(mCurrentShift.animateToValue(mCurrentShift.value, endProgress));
-
-                anim.setDuration(duration);
-                anim.addListener(endListener);
-                anim.start();
-                mFinishAnimation = RunningWindowAnim.wrap(anim);
-            }
-
-        } else {
-            finishAnimationTargetSetAnimationComplete();
-        }
-    }
-
-    @Override
-    public void onRecentsAnimationStart(RecentsAnimationController controller,
-            RecentsAnimationTargets targets) {
-        super.onRecentsAnimationStart(controller, targets);
-        mRecentsAnimationController.enableInputConsumer();
-        applyWindowTransform();
-
-        mStateCallback.setStateOnUiThread(STATE_APP_CONTROLLER_RECEIVED);
-    }
-
-    @Override
-    public void onRecentsAnimationCanceled(ThumbnailData thumbnailData) {
-        mStateCallback.setStateOnUiThread(STATE_HANDLER_INVALIDATED);
-
-        // Defer clearing the controller and the targets until after we've updated the state
-        super.onRecentsAnimationCanceled(thumbnailData);
+    protected HomeAnimationFactory createHomeAnimationFactory(long duration) {
+        mActiveAnimationFactory = new FallbackHomeAnimationFactory(duration);
+        ActivityOptions options = ActivityOptions.makeCustomAnimation(mContext, 0, 0);
+        mContext.startActivity(new Intent(mGestureState.getHomeIntent()), options.toBundle());
+        return mActiveAnimationFactory;
     }
 
     @Override
     protected boolean handleTaskAppeared(RemoteAnimationTargetCompat appearedTaskTarget) {
-        return true;
-    }
+        if (mActiveAnimationFactory != null
+                && mActiveAnimationFactory.handleHomeTaskAppeared(appearedTaskTarget)) {
+            mActiveAnimationFactory = null;
+            return false;
+        }
 
-    /**
-     * 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(null) {
-            @Override
-            public AnimatorPlaybackController createActivityAnimationToHome() {
-                AnimatorSet anim = new AnimatorSet();
-                Animator fadeInLauncher = mLauncherAlpha.animateToValue(mLauncherAlpha.value, 1);
-                fadeInLauncher.setInterpolator(ACCEL_2);
-                anim.play(fadeInLauncher);
-                anim.setDuration(duration);
-                return AnimatorPlaybackController.wrap(anim, duration);
-            }
-        };
-        return createWindowAnimationToHome(startProgress, factory);
+        return super.handleTaskAppeared(appearedTaskTarget);
     }
 
     @Override
-    protected float getWindowAlpha(float progress) {
-        return 1 - ACCEL_1_5.getInterpolation(progress);
+    protected void finishRecentsControllerToHome(Runnable callback) {
+        mRecentsAnimationController.finish(
+                false /* toRecents */, callback, true /* sendUserLeaveHint */);
+    }
+
+    @Override
+    protected void notifyGestureAnimationStartToRecents() {
+        if (mRunningOverHome) {
+            mRecentsView.onGestureAnimationStartOnHome(mGestureState.getRunningTask());
+        } else {
+            super.notifyGestureAnimationStartToRecents();
+        }
+    }
+
+    private class FallbackHomeAnimationFactory extends HomeAnimationFactory
+            implements TransformParams.BuilderProxy {
+
+        private final TransformParams mHomeAlphaParams = new TransformParams();
+        private final AnimatedFloat mHomeAlpha = new AnimatedFloat(this::updateHomeAlpha);
+
+        private final long mDuration;
+        FallbackHomeAnimationFactory(long duration) {
+            super(null);
+            mDuration = duration;
+        }
+
+        @NonNull
+        @Override
+        public AnimatorPlaybackController createActivityAnimationToHome() {
+            PendingAnimation pa = new PendingAnimation(mDuration);
+            pa.setFloat(mHomeAlpha, AnimatedFloat.VALUE, 1, LINEAR);
+            return pa.createPlaybackController();
+        }
+
+        private void updateHomeAlpha() {
+            mHomeAlphaParams.setProgress(mHomeAlpha.value);
+            if (mHomeAlphaParams.getTargetSet() != null) {
+                mHomeAlphaParams.applySurfaceParams(mHomeAlphaParams.createSurfaceParams(this));
+            }
+        }
+
+        public boolean handleHomeTaskAppeared(RemoteAnimationTargetCompat appearedTaskTarget) {
+            if (appearedTaskTarget.activityType == ACTIVITY_TYPE_HOME) {
+                RemoteAnimationTargets targets = new RemoteAnimationTargets(
+                        new RemoteAnimationTargetCompat[] {appearedTaskTarget},
+                        new RemoteAnimationTargetCompat[0], appearedTaskTarget.mode);
+                mHomeAlphaParams.setTargetSet(targets);
+                updateHomeAlpha();
+                return true;
+            }
+            return false;
+        }
+
+        @Override
+        public void onBuildParams(Builder builder, RemoteAnimationTargetCompat app, int targetMode,
+                TransformParams params) { }
     }
 }
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/LauncherActivityInterface.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/LauncherActivityInterface.java
index 317d4da92d..dae2f41b28 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/LauncherActivityInterface.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/LauncherActivityInterface.java
@@ -15,29 +15,18 @@
  */
 package com.android.quickstep;
 
-import static com.android.launcher3.LauncherAnimUtils.SCALE_PROPERTY;
 import static com.android.launcher3.LauncherState.BACKGROUND_APP;
 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.SysUINavigationMode.getMode;
 import static com.android.quickstep.SysUINavigationMode.hideShelfInTwoButtonLandscape;
 import static com.android.quickstep.util.LayoutUtils.getDefaultSwipeHeight;
-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.content.Context;
 import android.content.res.Resources;
-import android.graphics.PointF;
 import android.graphics.Rect;
 import android.util.Log;
-import android.view.MotionEvent;
 import android.view.animation.Interpolator;
 
 import androidx.annotation.Nullable;
@@ -61,9 +50,7 @@ import com.android.launcher3.userevent.nano.LauncherLogProto;
 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.views.LauncherRecentsView;
 import com.android.quickstep.views.RecentsView;
 import com.android.systemui.plugins.shared.LauncherOverlayManager;
 import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
@@ -75,12 +62,12 @@ import java.util.function.Predicate;
  * {@link BaseActivityInterface} for the in-launcher recents.
  */
 public final class LauncherActivityInterface extends
-        BaseActivityInterface<LauncherState, Launcher> {
+        BaseActivityInterface<LauncherState, BaseQuickstepLauncher> {
 
     public static final LauncherActivityInterface INSTANCE = new LauncherActivityInterface();
 
     private LauncherActivityInterface() {
-        super(true);
+        super(true, OVERVIEW, BACKGROUND_APP);
     }
 
     @Override
@@ -131,119 +118,43 @@ public final class LauncherActivityInterface extends
     @Override
     public AnimationFactory prepareRecentsUI(
             boolean activityVisible, Consumer<AnimatorPlaybackController> callback) {
-        BaseQuickstepLauncher launcher = getCreatedActivity();
-        final LauncherState startState = launcher.getStateManager().getState();
-
-        LauncherState resetState = startState;
-        if (startState.shouldDisableRestore()) {
-            resetState = launcher.getStateManager().getRestState();
-        }
-        launcher.getStateManager().setRestState(resetState);
-
-        launcher.getStateManager().goToState(BACKGROUND_APP, 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 */);
-
-        return new AnimationFactory() {
-            private final ShelfPeekAnim mShelfAnim = launcher.getShelfPeekAnim();
-            private boolean mIsAttachedToWindow;
-
-            @Override
-            public void createActivityInterface(long transitionLength) {
-                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.
-                if (SysUINavigationMode.getMode(launcher) == Mode.NO_BUTTON) {
-                    setRecentsAttachedToAppWindow(mIsAttachedToWindow, false);
-                }
-            }
-
-            @Override
-            public void onTransitionCancelled() {
-                launcher.getStateManager().goToState(startState, false /* animate */);
-            }
-
+        DefaultAnimationFactory factory = new DefaultAnimationFactory(callback) {
             @Override
             public void setShelfState(ShelfAnimState shelfState, Interpolator interpolator,
                     long duration) {
-                mShelfAnim.setShelfState(shelfState, interpolator, duration);
+                mActivity.getShelfPeekAnim().setShelfState(shelfState, interpolator, duration);
             }
 
             @Override
-            public void setRecentsAttachedToAppWindow(boolean attached, boolean animate) {
-                if (mIsAttachedToWindow == attached && animate) {
-                    return;
-                }
-                mIsAttachedToWindow = attached;
-                LauncherRecentsView recentsView = launcher.getOverviewPanel();
-                Animator fadeAnim = launcher.getStateManager()
-                        .createStateElementAnimation(
-                        INDEX_RECENTS_FADE_ANIM, attached ? 1 : 0);
+            protected void createBackgroundToOverviewAnim(BaseQuickstepLauncher activity,
+                    PendingAnimation pa) {
+                super.createBackgroundToOverviewAnim(activity, pa);
 
-                float fromTranslation = attached ? 1 : 0;
-                float toTranslation = attached ? 0 : 1;
-                launcher.getStateManager()
-                        .cancelStateElementAnimation(INDEX_RECENTS_TRANSLATE_X_ANIM);
-                if (!recentsView.isShown() && animate) {
-                    ADJACENT_PAGE_OFFSET.set(recentsView, fromTranslation);
-                } else {
-                    fromTranslation = ADJACENT_PAGE_OFFSET.get(recentsView);
-                }
-                if (!animate) {
-                    ADJACENT_PAGE_OFFSET.set(recentsView, toTranslation);
-                } else {
-                    launcher.getStateManager().createStateElementAnimation(
-                            INDEX_RECENTS_TRANSLATE_X_ANIM,
-                            fromTranslation, toTranslation).start();
+                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.
+                    pa.add(activity.getStateManager().createStateElementAnimation(
+                            INDEX_SHELF_ANIM,
+                            BACKGROUND_APP.getVerticalProgress(activity),
+                            OVERVIEW.getVerticalProgress(activity)));
                 }
 
-                fadeAnim.setInterpolator(attached ? INSTANT : ACCEL_2);
-                fadeAnim.setDuration(animate ? RECENTS_ATTACH_DURATION : 0).start();
+                // Animate the blur and wallpaper zoom
+                float fromDepthRatio = BACKGROUND_APP.getDepth(activity);
+                float toDepthRatio = OVERVIEW.getDepth(activity);
+                pa.addFloat(getDepthController(),
+                        new ClampedDepthProperty(fromDepthRatio, toDepthRatio),
+                        fromDepthRatio, toDepthRatio, LINEAR);
+
             }
         };
-    }
 
-    private AnimatorPlaybackController createBackgroundToOverviewAnim(
-            Launcher activity, long transitionLength) {
-
-        PendingAnimation pa = new PendingAnimation(transitionLength * 2);
-
-        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.
-            pa.add(activity.getStateManager().createStateElementAnimation(
-                    INDEX_SHELF_ANIM,
-                    BACKGROUND_APP.getVerticalProgress(activity),
-                    OVERVIEW.getVerticalProgress(activity)));
-        }
-
-        // Animate the blur and wallpaper zoom
-        float fromDepthRatio = BACKGROUND_APP.getDepth(activity);
-        float toDepthRatio = OVERVIEW.getDepth(activity);
-        pa.addFloat(getDepthController(), new ClampedDepthProperty(fromDepthRatio, toDepthRatio),
-                fromDepthRatio, toDepthRatio, LINEAR);
-
-
-        //  Scale down recents from being full screen to being in overview.
-        RecentsView recentsView = activity.getOverviewPanel();
-        pa.addFloat(recentsView, SCALE_PROPERTY,
-                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(() -> activity.getStateManager().goToState(
-                controller.getInterpolatedProgress() > 0.5 ? OVERVIEW : BACKGROUND_APP, false));
-        return controller;
+        BaseQuickstepLauncher launcher = factory.initUI();
+        // 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 */);
+        return factory;
     }
 
     @Override
@@ -252,6 +163,15 @@ public final class LauncherActivityInterface extends
                 onInitListener.test(alreadyOnHome));
     }
 
+    @Override
+    public void setOnDeferredActivityLaunchCallback(Runnable r) {
+        Launcher launcher = getCreatedActivity();
+        if (launcher == null) {
+            return;
+        }
+        launcher.setOnDeferredActivityLaunchCallback(r);
+    }
+
     @Nullable
     @Override
     public BaseQuickstepLauncher getCreatedActivity() {
@@ -259,11 +179,13 @@ public final class LauncherActivityInterface extends
     }
 
     @Nullable
-    @UiThread
-    private Launcher getVisibleLauncher() {
-        Launcher launcher = getCreatedActivity();
-        return (launcher != null) && launcher.isStarted() && launcher.hasWindowFocus() ?
-                launcher : null;
+    @Override
+    public DepthController getDepthController() {
+        BaseQuickstepLauncher launcher = getCreatedActivity();
+        if (launcher == null) {
+            return null;
+        }
+        return launcher.getDepthController();
     }
 
     @Nullable
@@ -274,6 +196,14 @@ public final class LauncherActivityInterface extends
                 ? launcher.getOverviewPanel() : null;
     }
 
+    @Nullable
+    @UiThread
+    private Launcher getVisibleLauncher() {
+        Launcher launcher = getCreatedActivity();
+        return (launcher != null) && launcher.isStarted() && launcher.hasWindowFocus()
+                ? launcher : null;
+    }
+
     @Override
     public boolean switchToRecentsIfVisible(Runnable onCompleteCallback) {
         if (TestProtocol.sDebugTracing) {
@@ -293,15 +223,6 @@ public final class LauncherActivityInterface extends
         return true;
     }
 
-    @Override
-    public void setHintUserWillBeActive() {
-        getCreatedActivity().setHintUserWillBeActive();
-    }
-
-    @Override
-    public boolean deferStartingActivity(RecentsAnimationDeviceState deviceState, MotionEvent ev) {
-        return deviceState.isInDeferredGestureRegion(ev);
-    }
 
     @Override
     public Rect getOverviewWindowBounds(Rect homeBounds, RemoteAnimationTargetCompat target) {
@@ -313,6 +234,16 @@ public final class LauncherActivityInterface extends
         return true;
     }
 
+    @Override
+    public void updateOverviewPredictionState() {
+        Launcher launcher = getCreatedActivity();
+        if (launcher == null) {
+            return;
+        }
+        PredictionUiStateManager.INSTANCE.get(launcher).switchClient(
+                PredictionUiStateManager.Client.OVERVIEW);
+    }
+
     @Override
     public int getContainerType() {
         final Launcher launcher = getVisibleLauncher();
@@ -350,51 +281,6 @@ public final class LauncherActivityInterface extends
         }
     }
 
-    @Override
-    public void setOnDeferredActivityLaunchCallback(Runnable r) {
-        Launcher launcher = getCreatedActivity();
-        if (launcher == null) {
-            return;
-        }
-        launcher.setOnDeferredActivityLaunchCallback(r);
-    }
-
-    @Override
-    public void updateOverviewPredictionState() {
-        Launcher launcher = getCreatedActivity();
-        if (launcher == null) {
-            return;
-        }
-        PredictionUiStateManager.INSTANCE.get(launcher).switchClient(
-                PredictionUiStateManager.Client.OVERVIEW);
-    }
-
-    @Nullable
-    @Override
-    public DepthController getDepthController() {
-        BaseQuickstepLauncher launcher = getCreatedActivity();
-        if (launcher == null) {
-            return null;
-        }
-        return launcher.getDepthController();
-    }
-
-    @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
     protected float getExtraSpace(Context context, DeviceProfile dp,
             PagedOrientationHandler orientationHandler) {
@@ -426,4 +312,5 @@ public final class LauncherActivityInterface extends
             }
         }
     }
+
 }
\ No newline at end of file
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/LauncherSwipeHandlerV2.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/LauncherSwipeHandlerV2.java
new file mode 100644
index 0000000000..fa7d2689f3
--- /dev/null
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/LauncherSwipeHandlerV2.java
@@ -0,0 +1,121 @@
+/*
+ * 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.LauncherState.NORMAL;
+
+import android.animation.AnimatorSet;
+import android.content.Context;
+import android.graphics.RectF;
+import android.os.UserHandle;
+import android.view.View;
+
+import androidx.annotation.NonNull;
+
+import com.android.launcher3.BaseQuickstepLauncher;
+import com.android.launcher3.anim.AnimatorPlaybackController;
+import com.android.launcher3.views.FloatingIconView;
+import com.android.quickstep.util.StaggeredWorkspaceAnim;
+import com.android.quickstep.views.RecentsView;
+import com.android.quickstep.views.TaskView;
+import com.android.systemui.shared.system.InputConsumerController;
+
+/**
+ * Temporary class to allow easier refactoring
+ */
+public class LauncherSwipeHandlerV2 extends
+        BaseSwipeUpHandlerV2<BaseQuickstepLauncher, RecentsView> {
+
+    public LauncherSwipeHandlerV2(Context context, RecentsAnimationDeviceState deviceState,
+            TaskAnimationManager taskAnimationManager, GestureState gestureState, long touchTimeMs,
+            boolean continuingLastGesture, InputConsumerController inputConsumer) {
+        super(context, deviceState, taskAnimationManager, gestureState, touchTimeMs,
+                continuingLastGesture, inputConsumer);
+    }
+
+
+    @Override
+    protected HomeAnimationFactory createHomeAnimationFactory(long duration) {
+        HomeAnimationFactory homeAnimFactory;
+        if (mActivity != null) {
+            final TaskView runningTaskView = mRecentsView.getRunningTaskView();
+            final View workspaceView;
+            if (runningTaskView != null
+                    && 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);
+            mActivity.setHintUserWillBeActive();
+
+            homeAnimFactory = new HomeAnimationFactory(floatingIconView) {
+
+                @Override
+                public RectF getWindowTargetRect() {
+                    if (canUseWorkspaceView) {
+                        return iconLocation;
+                    } 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);
+                }
+            };
+            mStateCallback.addChangeListener(STATE_LAUNCHER_PRESENT | STATE_HANDLER_INVALIDATED,
+                    isPresent -> mRecentsView.startHome());
+        }
+        return homeAnimFactory;
+    }
+
+    @Override
+    protected void finishRecentsControllerToHome(Runnable callback) {
+        mRecentsAnimationController.finish(
+                true /* toRecents */, callback, true /* sendUserLeaveHint */);
+    }
+}
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/RecentsActivity.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/RecentsActivity.java
index a4670fd40b..33b7f12b80 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/RecentsActivity.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/RecentsActivity.java
@@ -46,6 +46,7 @@ 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.AtomicAnimationFactory;
 import com.android.launcher3.statemanager.StateManager.StateHandler;
 import com.android.launcher3.statemanager.StatefulActivity;
 import com.android.launcher3.util.ActivityTracker;
@@ -57,6 +58,7 @@ 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.util.RecentsAtomicAnimationFactory;
 import com.android.quickstep.views.OverviewActionsView;
 import com.android.quickstep.views.TaskView;
 import com.android.systemui.shared.recents.model.ThumbnailData;
@@ -345,6 +347,11 @@ public final class RecentsActivity extends StatefulActivity<RecentsState> {
         dumpMisc(prefix + "\t", writer);
     }
 
+    @Override
+    public AtomicAnimationFactory<RecentsState> createAtomicAnimationFactory() {
+        return new RecentsAtomicAnimationFactory<>(this, 0);
+    }
+
     private AnimatorListenerAdapter resetStateListener() {
         return new AnimatorListenerAdapter() {
             @Override
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/TouchInteractionService.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/TouchInteractionService.java
index 8bffc7805c..a0bb631f78 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/TouchInteractionService.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/TouchInteractionService.java
@@ -85,7 +85,6 @@ 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;
 import com.android.systemui.shared.recents.IOverviewProxy;
@@ -833,16 +832,16 @@ public class TouchInteractionService extends Service implements PluginListener<O
         }
     }
 
-    private BaseSwipeUpHandler createLauncherSwipeHandler(GestureState gestureState,
-            long touchTimeMs, boolean continuingLastGesture, boolean isLikelyToStartNewTask) {
-        return new LauncherSwipeHandler(this, mDeviceState, mTaskAnimationManager,
+    private BaseSwipeUpHandler createLauncherSwipeHandler(
+            GestureState gestureState, long touchTimeMs, boolean continuingLastGesture) {
+        return new LauncherSwipeHandlerV2(this, mDeviceState, mTaskAnimationManager,
                 gestureState, touchTimeMs, continuingLastGesture, mInputConsumer);
     }
 
-    private BaseSwipeUpHandler createFallbackSwipeHandler(GestureState gestureState,
-            long touchTimeMs, boolean continuingLastGesture, boolean isLikelyToStartNewTask) {
-        return new FallbackSwipeHandler(this, mDeviceState, gestureState,
-                mInputConsumer, isLikelyToStartNewTask, continuingLastGesture);
+    private BaseSwipeUpHandler createFallbackSwipeHandler(
+            GestureState gestureState, long touchTimeMs, boolean continuingLastGesture) {
+        return new FallbackSwipeHandler(this, mDeviceState, mTaskAnimationManager,
+                gestureState, touchTimeMs, continuingLastGesture, mInputConsumer);
     }
 
     protected boolean shouldNotifyBackGesture() {
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/fallback/FallbackRecentsView.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/fallback/FallbackRecentsView.java
index f958e6d734..9242771dd9 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/fallback/FallbackRecentsView.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/fallback/FallbackRecentsView.java
@@ -24,11 +24,13 @@ import android.content.Context;
 import android.os.Build;
 import android.util.AttributeSet;
 
+import com.android.launcher3.anim.PendingAnimation;
 import com.android.launcher3.statemanager.StateManager.StateListener;
 import com.android.quickstep.FallbackActivityInterface;
 import com.android.quickstep.RecentsActivity;
 import com.android.quickstep.views.OverviewActionsView;
 import com.android.quickstep.views.RecentsView;
+import com.android.quickstep.views.TaskView;
 import com.android.systemui.shared.recents.model.Task;
 import com.android.systemui.shared.recents.model.Task.TaskKey;
 
@@ -38,7 +40,7 @@ import java.util.ArrayList;
 public class FallbackRecentsView extends RecentsView<RecentsActivity>
         implements StateListener<RecentsState> {
 
-    private RunningTaskInfo mRunningTaskInfo;
+    private RunningTaskInfo mHomeTaskInfo;
 
     public FallbackRecentsView(Context context, AttributeSet attrs) {
         this(context, attrs, 0);
@@ -67,16 +69,40 @@ public class FallbackRecentsView extends RecentsView<RecentsActivity>
         return false;
     }
 
-    public void onGestureAnimationStart(RunningTaskInfo runningTaskInfo) {
-        mRunningTaskInfo = runningTaskInfo;
-        onGestureAnimationStart(runningTaskInfo == null ? -1 : runningTaskInfo.taskId);
+    /**
+     * When starting gesture interaction from home, we add a temporary invisible tile corresponding
+     * to the home task. This allows us to handle quick-switch similarly to a quick-switching
+     * from a foreground task.
+     */
+    public void onGestureAnimationStartOnHome(RunningTaskInfo homeTaskInfo) {
+        mHomeTaskInfo = homeTaskInfo;
+        onGestureAnimationStart(homeTaskInfo == null ? -1 : homeTaskInfo.taskId);
+    }
+
+    /**
+     * When the gesture ends and recents view become interactive, we also remove the temporary
+     * invisible tile added for the home task. This also pushes the remaining tiles back
+     * to the center.
+     */
+    @Override
+    public void onGestureAnimationEnd() {
+        super.onGestureAnimationEnd();
+        if (mHomeTaskInfo != null) {
+            TaskView tv = getTaskView(mHomeTaskInfo.taskId);
+            if (tv != null) {
+                PendingAnimation pa = createTaskDismissAnimation(tv, true, false, 150);
+                pa.addEndListener(e -> setCurrentTask(-1));
+                runDismissAnimation(pa);
+            }
+        }
     }
 
     @Override
     public void setCurrentTask(int runningTaskId) {
         super.setCurrentTask(runningTaskId);
-        if (mRunningTaskInfo != null && mRunningTaskInfo.taskId != runningTaskId) {
-            mRunningTaskInfo = null;
+        if (mHomeTaskInfo != null && mHomeTaskInfo.taskId != runningTaskId) {
+            mHomeTaskInfo = null;
+            setRunningTaskHidden(false);
         }
     }
 
@@ -85,7 +111,7 @@ public class FallbackRecentsView extends RecentsView<RecentsActivity>
         // When quick-switching on 3p-launcher, we add a "dummy" tile corresponding to Launcher
         // as well. This tile is never shown as we have setCurrentTaskHidden, but allows use to
         // track the index of the next task appropriately, as if we are switching on any other app.
-        if (mRunningTaskInfo != null && mRunningTaskInfo.taskId == mRunningTaskId) {
+        if (mHomeTaskInfo != null && mHomeTaskInfo.taskId == mRunningTaskId) {
             // Check if the task list has running task
             boolean found = false;
             for (Task t : tasks) {
@@ -97,13 +123,22 @@ public class FallbackRecentsView extends RecentsView<RecentsActivity>
             if (!found) {
                 ArrayList<Task> newList = new ArrayList<>(tasks.size() + 1);
                 newList.addAll(tasks);
-                newList.add(Task.from(new TaskKey(mRunningTaskInfo), mRunningTaskInfo, false));
+                newList.add(Task.from(new TaskKey(mHomeTaskInfo), mHomeTaskInfo, false));
                 tasks = newList;
             }
         }
         super.applyLoadPlan(tasks);
     }
 
+    @Override
+    public void setRunningTaskHidden(boolean isHidden) {
+        if (mHomeTaskInfo != null) {
+            // Always keep the home task hidden
+            isHidden = true;
+        }
+        super.setRunningTaskHidden(isHidden);
+    }
+
     @Override
     public void setModalStateEnabled(boolean isModalState) {
         super.setModalStateEnabled(isModalState);
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/inputconsumers/DeviceLockedInputConsumer.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/inputconsumers/DeviceLockedInputConsumer.java
index abe4af4705..3a97216035 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/inputconsumers/DeviceLockedInputConsumer.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/inputconsumers/DeviceLockedInputConsumer.java
@@ -21,7 +21,7 @@ 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.LauncherSwipeHandler.MIN_PROGRESS_FOR_OVERVIEW;
+import static com.android.quickstep.BaseSwipeUpHandlerV2.MIN_PROGRESS_FOR_OVERVIEW;
 import static com.android.quickstep.MultiStateCallback.DEBUG_STATES;
 import static com.android.quickstep.util.ActiveGestureLog.INTENT_EXTRA_LOG_TRACE_ID;
 
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/inputconsumers/OtherActivityInputConsumer.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/inputconsumers/OtherActivityInputConsumer.java
index 6b0d7a3e87..ab9ec21623 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/inputconsumers/OtherActivityInputConsumer.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/inputconsumers/OtherActivityInputConsumer.java
@@ -207,7 +207,7 @@ public class OtherActivityInputConsumer extends ContextWrapper implements InputC
                 // Start the window animation on down to give more time for launcher to draw if the
                 // user didn't start the gesture over the back button
                 if (!mIsDeferredDownTarget) {
-                    startTouchTrackingForWindowAnimation(ev.getEventTime(), false);
+                    startTouchTrackingForWindowAnimation(ev.getEventTime());
                 }
 
                 TraceHelper.INSTANCE.endSection(traceToken);
@@ -275,8 +275,7 @@ public class OtherActivityInputConsumer extends ContextWrapper implements InputC
                         if (mIsDeferredDownTarget) {
                             // Deferred gesture, start the animation and gesture tracking once
                             // we pass the actual touch slop
-                            startTouchTrackingForWindowAnimation(
-                                    ev.getEventTime(), isLikelyToStartNewTask);
+                            startTouchTrackingForWindowAnimation(ev.getEventTime());
                         }
                         if (!mPassedWindowMoveSlop) {
                             mPassedWindowMoveSlop = true;
@@ -326,12 +325,11 @@ public class OtherActivityInputConsumer extends ContextWrapper implements InputC
         mInteractionHandler.onGestureStarted();
     }
 
-    private void startTouchTrackingForWindowAnimation(
-            long touchTimeMs, boolean isLikelyToStartNewTask) {
+    private void startTouchTrackingForWindowAnimation(long touchTimeMs) {
         ActiveGestureLog.INSTANCE.addLog("startRecentsAnimation");
 
         mInteractionHandler = mHandlerFactory.newHandler(mGestureState, touchTimeMs,
-                mTaskAnimationManager.isRecentsAnimationRunning(), isLikelyToStartNewTask);
+                mTaskAnimationManager.isRecentsAnimationRunning());
         mInteractionHandler.setGestureEndCallback(this::onInteractionGestureFinished);
         mMotionPauseDetector.setOnMotionPauseListener(mInteractionHandler::onMotionPauseChanged);
         Intent intent = new Intent(mInteractionHandler.getLaunchIntent());
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/util/RecentsAtomicAnimationFactory.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/util/RecentsAtomicAnimationFactory.java
new file mode 100644
index 0000000000..5b0d50317f
--- /dev/null
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/util/RecentsAtomicAnimationFactory.java
@@ -0,0 +1,67 @@
+/*
+ * 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 com.android.quickstep.views.RecentsView.ADJACENT_PAGE_OFFSET;
+
+import android.animation.Animator;
+import android.animation.ObjectAnimator;
+
+import com.android.launcher3.anim.SpringAnimationBuilder;
+import com.android.launcher3.statemanager.StateManager.AtomicAnimationFactory;
+import com.android.launcher3.statemanager.StatefulActivity;
+import com.android.quickstep.views.RecentsView;
+
+public class RecentsAtomicAnimationFactory<ACTIVITY_TYPE extends StatefulActivity, STATE_TYPE>
+        extends AtomicAnimationFactory<STATE_TYPE> {
+
+    public static final int INDEX_RECENTS_FADE_ANIM = AtomicAnimationFactory.NEXT_INDEX + 0;
+    public static final int INDEX_RECENTS_TRANSLATE_X_ANIM = AtomicAnimationFactory.NEXT_INDEX + 1;
+
+    private static final int MY_ANIM_COUNT = 2;
+    protected static final int NEXT_INDEX = AtomicAnimationFactory.NEXT_INDEX + MY_ANIM_COUNT;
+
+    protected final ACTIVITY_TYPE mActivity;
+
+    /**
+     * @param extraAnims number of animations supported by the subclass. This should not include
+     *                  the 2 animations supported by this class.
+     */
+    public RecentsAtomicAnimationFactory(ACTIVITY_TYPE activity, int extraAnims) {
+        super(MY_ANIM_COUNT + extraAnims);
+        mActivity = activity;
+    }
+
+    @Override
+    public Animator createStateElementAnimation(int index, float... values) {
+        switch (index) {
+            case INDEX_RECENTS_FADE_ANIM:
+                return ObjectAnimator.ofFloat(mActivity.getOverviewPanel(),
+                        RecentsView.CONTENT_ALPHA, values);
+            case INDEX_RECENTS_TRANSLATE_X_ANIM: {
+                RecentsView rv = mActivity.getOverviewPanel();
+                return new SpringAnimationBuilder(mActivity)
+                        .setMinimumVisibleChange(1f / rv.getPageOffsetScale())
+                        .setDampingRatio(0.8f)
+                        .setStiffness(250)
+                        .setValues(values)
+                        .build(rv, ADJACENT_PAGE_OFFSET);
+            }
+            default:
+                return super.createStateElementAnimation(index, values);
+        }
+    }
+}
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/views/ClearAllButton.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/views/ClearAllButton.java
index 2c85618361..fd74357f37 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/views/ClearAllButton.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/views/ClearAllButton.java
@@ -47,24 +47,21 @@ public class ClearAllButton extends Button implements PageCallbacks {
     private boolean mIsRtl;
 
     private int mScrollOffset;
-    private RecentsView mParent;
 
     public ClearAllButton(Context context, AttributeSet attrs) {
         super(context, attrs);
+        mIsRtl = getLayoutDirection() == LAYOUT_DIRECTION_RTL;
     }
 
     @Override
     protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
         super.onLayout(changed, left, top, right, bottom);
-        PagedOrientationHandler orientationHandler = mParent.getPagedOrientationHandler();
-        mScrollOffset = orientationHandler.getClearAllScrollOffset(mParent, mIsRtl);
+        PagedOrientationHandler orientationHandler = getRecentsView().getPagedOrientationHandler();
+        mScrollOffset = orientationHandler.getClearAllScrollOffset(getRecentsView(), mIsRtl);
     }
 
-    @Override
-    protected void onAttachedToWindow() {
-        super.onAttachedToWindow();
-        mParent = (RecentsView) getParent();
-        mIsRtl = getLayoutDirection() == LAYOUT_DIRECTION_RTL;
+    private RecentsView getRecentsView() {
+        return (RecentsView) getParent();
     }
 
     @Override
@@ -94,7 +91,7 @@ public class ClearAllButton extends Button implements PageCallbacks {
 
     @Override
     public void onPageScroll(ScrollState scrollState) {
-        PagedOrientationHandler orientationHandler = mParent.getPagedOrientationHandler();
+        PagedOrientationHandler orientationHandler = getRecentsView().getPagedOrientationHandler();
         float orientationSize = orientationHandler.getPrimaryValue(getWidth(), getHeight());
         if (orientationSize == 0) {
             return;
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/views/RecentsView.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/views/RecentsView.java
index aee86db86b..3273e85c8f 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/views/RecentsView.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/views/RecentsView.java
@@ -17,6 +17,8 @@
 package com.android.quickstep.views;
 
 import static android.view.Surface.ROTATION_0;
+import static android.view.View.MeasureSpec.EXACTLY;
+import static android.view.View.MeasureSpec.makeMeasureSpec;
 
 import static com.android.launcher3.BaseActivity.STATE_HANDLER_INVISIBILITY_FLAGS;
 import static com.android.launcher3.InvariantDeviceProfile.CHANGE_FLAG_ICON_PARAMS;
@@ -1080,9 +1082,9 @@ public abstract class RecentsView<T extends BaseActivity> extends PagedView impl
      * Called when a gesture from an app has finished.
      */
     public void onGestureAnimationEnd() {
+        setOnScrollChangeListener(null);
         setEnableFreeScroll(true);
         setEnableDrawingLiveTile(true);
-        setOnScrollChangeListener(null);
         if (!ENABLE_QUICKSTEP_LIVE_TILE.get()) {
             setRunningTaskViewShowScreenshot(true);
         }
@@ -1113,6 +1115,12 @@ public abstract class RecentsView<T extends BaseActivity> extends PagedView impl
                     false, true, false, false, new ActivityManager.TaskDescription(), 0,
                     new ComponentName("", ""), false);
             taskView.bind(mTmpRunningTask, mOrientationState);
+
+            // Measure and layout immediately so that the scroll values is updated instantly
+            // as the user might be quick-switching
+            measure(makeMeasureSpec(getMeasuredWidth(), EXACTLY),
+                    makeMeasureSpec(getMeasuredHeight(), EXACTLY));
+            layout(getLeft(), getTop(), getRight(), getBottom());
         }
 
         boolean runningTaskTileHidden = mRunningTaskTileHidden;
@@ -1489,7 +1497,7 @@ public abstract class RecentsView<T extends BaseActivity> extends PagedView impl
         return true;
     }
 
-    private void runDismissAnimation(PendingAnimation pendingAnim) {
+    protected void runDismissAnimation(PendingAnimation pendingAnim) {
         AnimatorPlaybackController controller = pendingAnim.createPlaybackController();
         controller.dispatchOnStart();
         controller.setEndAction(() -> pendingAnim.finish(true, Touch.SWIPE));
diff --git a/quickstep/src/com/android/quickstep/BaseActivityInterface.java b/quickstep/src/com/android/quickstep/BaseActivityInterface.java
index 19932cb4b3..022977b3b6 100644
--- a/quickstep/src/com/android/quickstep/BaseActivityInterface.java
+++ b/quickstep/src/com/android/quickstep/BaseActivityInterface.java
@@ -15,15 +15,24 @@
  */
 package com.android.quickstep;
 
+import static com.android.launcher3.LauncherAnimUtils.SCALE_PROPERTY;
+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.config.FeatureFlags.ENABLE_OVERVIEW_ACTIONS;
+import static com.android.quickstep.BaseSwipeUpHandlerV2.RECENTS_ATTACH_DURATION;
 import static com.android.quickstep.SysUINavigationMode.getMode;
 import static com.android.quickstep.SysUINavigationMode.hideShelfInTwoButtonLandscape;
 import static com.android.quickstep.SysUINavigationMode.removeShelfFromOverview;
+import static com.android.quickstep.util.RecentsAtomicAnimationFactory.INDEX_RECENTS_FADE_ANIM;
+import static com.android.quickstep.util.RecentsAtomicAnimationFactory.INDEX_RECENTS_TRANSLATE_X_ANIM;
+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.annotation.TargetApi;
 import android.content.Context;
 import android.content.res.Resources;
-import android.graphics.PointF;
 import android.graphics.Rect;
 import android.os.Build;
 import android.view.MotionEvent;
@@ -35,6 +44,7 @@ import androidx.annotation.UiThread;
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.R;
 import com.android.launcher3.anim.AnimatorPlaybackController;
+import com.android.launcher3.anim.PendingAnimation;
 import com.android.launcher3.statehandlers.DepthController;
 import com.android.launcher3.statemanager.BaseState;
 import com.android.launcher3.statemanager.StatefulActivity;
@@ -58,11 +68,15 @@ import java.util.function.Predicate;
 public abstract class BaseActivityInterface<STATE_TYPE extends BaseState<STATE_TYPE>,
         ACTIVITY_TYPE extends StatefulActivity<STATE_TYPE>> {
 
-    private final PointF mTempPoint = new PointF();
     public final boolean rotationSupportedByActivity;
 
-    protected BaseActivityInterface(boolean rotationSupportedByActivity) {
+    private final STATE_TYPE mOverviewState, mBackgroundState;
+
+    protected BaseActivityInterface(boolean rotationSupportedByActivity,
+            STATE_TYPE overviewState, STATE_TYPE backgroundState) {
         this.rotationSupportedByActivity = rotationSupportedByActivity;
+        mOverviewState = overviewState;
+        mBackgroundState = backgroundState;
     }
 
     public void onTransitionCancelled(boolean activityVisible) {
@@ -87,7 +101,7 @@ public abstract class BaseActivityInterface<STATE_TYPE extends BaseState<STATE_T
         activity.getStateManager().reapplyState();
     }
 
-    public void onSwipeUpToHomeComplete() { }
+    public abstract void onSwipeUpToHomeComplete();
 
     public abstract void onAssistantVisibilityChanged(float visibility);
 
@@ -133,7 +147,7 @@ public abstract class BaseActivityInterface<STATE_TYPE extends BaseState<STATE_T
     public abstract boolean allowMinimizeSplitScreen();
 
     public boolean deferStartingActivity(RecentsAnimationDeviceState deviceState, MotionEvent ev) {
-        return true;
+        return deviceState.isInDeferredGestureRegion(ev);
     }
 
     /**
@@ -177,13 +191,6 @@ public abstract class BaseActivityInterface<STATE_TYPE extends BaseState<STATE_T
         recentsView.switchToScreenshot(thumbnailData, runnable);
     }
 
-    public void setHintUserWillBeActive() {}
-
-    /**
-     * 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
      */
@@ -259,7 +266,7 @@ public abstract class BaseActivityInterface<STATE_TYPE extends BaseState<STATE_T
     /**
      * Calculates the modal taskView size for the provided device configuration
      */
-    public void calculateModalTaskSize(Context context, DeviceProfile dp, Rect outRect) {
+    public final 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()
@@ -273,7 +280,7 @@ public abstract class BaseActivityInterface<STATE_TYPE extends BaseState<STATE_T
     }
 
     /** Gets the space that the overview actions will take, including margins. */
-    public float getOverviewActionsHeight(Context context) {
+    public final float getOverviewActionsHeight(Context context) {
         Resources res = context.getResources();
         float actionsBottomMargin = 0;
         if (getMode(context) == Mode.THREE_BUTTONS) {
@@ -290,8 +297,6 @@ public abstract class BaseActivityInterface<STATE_TYPE extends BaseState<STATE_T
 
     public interface AnimationFactory {
 
-        default void onRemoteAnimationReceived(RemoteAnimationTargets targets) { }
-
         void createActivityInterface(long transitionLength);
 
         default void onTransitionCancelled() { }
@@ -307,6 +312,97 @@ public abstract class BaseActivityInterface<STATE_TYPE extends BaseState<STATE_T
         default void setRecentsAttachedToAppWindow(boolean attached, boolean animate) { }
     }
 
+    class DefaultAnimationFactory implements AnimationFactory {
+
+        protected final ACTIVITY_TYPE mActivity;
+        private final STATE_TYPE mStartState;
+        private final Consumer<AnimatorPlaybackController> mCallback;
+
+        private boolean mIsAttachedToWindow;
+
+        DefaultAnimationFactory(Consumer<AnimatorPlaybackController> callback) {
+            mCallback = callback;
+
+            mActivity = getCreatedActivity();
+            mStartState = mActivity.getStateManager().getState();
+        }
+
+        protected ACTIVITY_TYPE initUI() {
+            STATE_TYPE resetState = mStartState;
+            if (mStartState.shouldDisableRestore()) {
+                resetState = mActivity.getStateManager().getRestState();
+            }
+            mActivity.getStateManager().setRestState(resetState);
+            mActivity.getStateManager().goToState(mBackgroundState, false);
+            return mActivity;
+        }
+
+        @Override
+        public void createActivityInterface(long transitionLength) {
+            PendingAnimation pa = new PendingAnimation(transitionLength * 2);
+            createBackgroundToOverviewAnim(mActivity, pa);
+            AnimatorPlaybackController controller = pa.createPlaybackController();
+            mActivity.getStateManager().setCurrentUserControlledAnimation(controller);
+
+            // Since we are changing the start position of the UI, reapply the state, at the end
+            controller.setEndAction(() -> mActivity.getStateManager().goToState(
+                    controller.getInterpolatedProgress() > 0.5 ? mOverviewState : mBackgroundState,
+                    false));
+            mCallback.accept(controller);
+
+            // 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.
+            if (SysUINavigationMode.getMode(mActivity) == Mode.NO_BUTTON) {
+                setRecentsAttachedToAppWindow(mIsAttachedToWindow, false);
+            }
+        }
+
+        @Override
+        public void onTransitionCancelled() {
+            mActivity.getStateManager().goToState(mStartState, false /* animate */);
+        }
+
+        @Override
+        public void setRecentsAttachedToAppWindow(boolean attached, boolean animate) {
+            if (mIsAttachedToWindow == attached && animate) {
+                return;
+            }
+            mIsAttachedToWindow = attached;
+            RecentsView recentsView = mActivity.getOverviewPanel();
+            Animator fadeAnim = mActivity.getStateManager()
+                    .createStateElementAnimation(INDEX_RECENTS_FADE_ANIM, attached ? 1 : 0);
+
+            float fromTranslation = attached ? 1 : 0;
+            float toTranslation = attached ? 0 : 1;
+            mActivity.getStateManager()
+                    .cancelStateElementAnimation(INDEX_RECENTS_TRANSLATE_X_ANIM);
+            if (!recentsView.isShown() && animate) {
+                ADJACENT_PAGE_OFFSET.set(recentsView, fromTranslation);
+            } else {
+                fromTranslation = ADJACENT_PAGE_OFFSET.get(recentsView);
+            }
+            if (!animate) {
+                ADJACENT_PAGE_OFFSET.set(recentsView, toTranslation);
+            } else {
+                mActivity.getStateManager().createStateElementAnimation(
+                        INDEX_RECENTS_TRANSLATE_X_ANIM,
+                        fromTranslation, toTranslation).start();
+            }
+
+            fadeAnim.setInterpolator(attached ? INSTANT : ACCEL_2);
+            fadeAnim.setDuration(animate ? RECENTS_ATTACH_DURATION : 0).start();
+        }
+
+        protected void createBackgroundToOverviewAnim(ACTIVITY_TYPE activity, PendingAnimation pa) {
+            //  Scale down recents from being full screen to being in overview.
+            RecentsView recentsView = activity.getOverviewPanel();
+            pa.addFloat(recentsView, SCALE_PROPERTY,
+                    recentsView.getMaxScaleForFullScreen(), 1, LINEAR);
+            pa.addFloat(recentsView, FULLSCREEN_PROGRESS, 1, 0, LINEAR);
+        }
+    }
+
     protected static boolean showOverviewActions(Context context) {
         return ENABLE_OVERVIEW_ACTIONS.get() && removeShelfFromOverview(context);
     }
diff --git a/src/com/android/launcher3/statemanager/StateManager.java b/src/com/android/launcher3/statemanager/StateManager.java
index 97dc0524f1..44f7db95d0 100644
--- a/src/com/android/launcher3/statemanager/StateManager.java
+++ b/src/com/android/launcher3/statemanager/StateManager.java
@@ -554,6 +554,8 @@ public class StateManager<STATE_TYPE extends BaseState<STATE_TYPE>> {
      */
     public static class AtomicAnimationFactory<STATE_TYPE> {
 
+        protected static final int NEXT_INDEX = 0;
+
         private final Animator[] mStateElementAnimators;
 
         /**