Merging from ub-launcher3-rvc-dev @ build 6557059

Bug:150504032 Test: manual, presubmit on the source branch x20/teams/android-launcher/merge/ub-launcher3-rvc-dev_rvc-dev_6557059.html Change-Id: I9c0912f26445d454f71c4f0f63d45b184726db3d Merged-In: I280025d9e58626fe725fe24ca60c28e89d0cee74
2020-06-04 00:41:09 -04:00
parent 1e7b4b850f 2191b49f03
commit fa6e021ce6
52 changed files with 1013 additions and 351 deletions
@@ -93,7 +93,7 @@ public abstract class BaseQuickstepLauncher extends Launcher
    public void onNavigationModeChanged(Mode newMode) {
        getDragLayer().recreateControllers();
        if (mActionsView != null && isOverviewActionsEnabled()) {
-            mActionsView.updateVerticalMarginForNavModeChange(newMode);
+            mActionsView.updateVerticalMargin(newMode);
        }
    }

@@ -175,7 +175,7 @@ public abstract class BaseQuickstepLauncher extends Launcher
            // Overview is above all other launcher elements, including qsb, so move it to the top.
            getOverviewPanel().bringToFront();
            mActionsView.bringToFront();
-            mActionsView.updateVerticalMarginForNavModeChange(SysUINavigationMode.getMode(this));
+            mActionsView.updateVerticalMargin(SysUINavigationMode.getMode(this));
        }
    }

@@ -82,6 +82,7 @@ import com.android.quickstep.RemoteAnimationTargets;
 import com.android.quickstep.util.MultiValueUpdateListener;
 import com.android.quickstep.util.RemoteAnimationProvider;
 import com.android.quickstep.util.StaggeredWorkspaceAnim;
+import com.android.quickstep.util.SurfaceTransactionApplier;
 import com.android.systemui.shared.system.ActivityCompat;
 import com.android.systemui.shared.system.ActivityOptionsCompat;
 import com.android.systemui.shared.system.QuickStepContract;
@@ -89,7 +90,6 @@ import com.android.systemui.shared.system.RemoteAnimationAdapterCompat;
 import com.android.systemui.shared.system.RemoteAnimationDefinitionCompat;
 import com.android.systemui.shared.system.RemoteAnimationRunnerCompat;
 import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
-import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplierCompat;
 import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplierCompat.SurfaceParams;
 import com.android.systemui.shared.system.WindowManagerWrapper;

@@ -455,9 +455,9 @@ public abstract class QuickstepAppTransitionManagerImpl extends LauncherAppTrans

        RemoteAnimationTargets openingTargets = new RemoteAnimationTargets(appTargets,
                wallpaperTargets, MODE_OPENING);
-        SyncRtSurfaceTransactionApplierCompat surfaceApplier =
-                new SyncRtSurfaceTransactionApplierCompat(floatingView);
-        openingTargets.addDependentTransactionApplier(surfaceApplier);
+        SurfaceTransactionApplier surfaceApplier =
+                new SurfaceTransactionApplier(floatingView);
+        openingTargets.addReleaseCheck(surfaceApplier);

        // Scale the app icon to take up the entire screen. This simplifies the math when
        // animating the app window position / scale.
@@ -714,8 +714,7 @@ public abstract class QuickstepAppTransitionManagerImpl extends LauncherAppTrans
     */
    private Animator getUnlockWindowAnimator(RemoteAnimationTargetCompat[] appTargets,
            RemoteAnimationTargetCompat[] wallpaperTargets) {
-        SyncRtSurfaceTransactionApplierCompat surfaceApplier =
-                new SyncRtSurfaceTransactionApplierCompat(mDragLayer);
+        SurfaceTransactionApplier surfaceApplier = new SurfaceTransactionApplier(mDragLayer);
        ValueAnimator unlockAnimator = ValueAnimator.ofFloat(0, 1);
        unlockAnimator.setDuration(CLOSING_TRANSITION_DURATION_MS);
        float cornerRadius = mDeviceProfile.isMultiWindowMode ? 0 :
@@ -743,8 +742,7 @@ public abstract class QuickstepAppTransitionManagerImpl extends LauncherAppTrans
     */
    private Animator getClosingWindowAnimators(RemoteAnimationTargetCompat[] appTargets,
            RemoteAnimationTargetCompat[] wallpaperTargets) {
-        SyncRtSurfaceTransactionApplierCompat surfaceApplier =
-                new SyncRtSurfaceTransactionApplierCompat(mDragLayer);
+        SurfaceTransactionApplier surfaceApplier = new SurfaceTransactionApplier(mDragLayer);
        Matrix matrix = new Matrix();
        Point tmpPos = new Point();
        ValueAnimator closingAnimator = ValueAnimator.ofFloat(0, 1);
@@ -77,6 +77,7 @@ public final class WellbeingModel {
    private static final String EXTRA_ACTION = "action";
    private static final String EXTRA_MAX_NUM_ACTIONS_SHOWN = "max_num_actions_shown";
    private static final String EXTRA_PACKAGES = "packages";
+    private static final String EXTRA_SUCCESS = "success";

    public static final MainThreadInitializedObject<WellbeingModel> INSTANCE =
            new MainThreadInitializedObject<>(WellbeingModel::new);
@@ -221,6 +222,7 @@ public final class WellbeingModel {
            params.putInt(EXTRA_MAX_NUM_ACTIONS_SHOWN, 1);
            // Perform wellbeing call .
            remoteActionBundle = client.call(METHOD_GET_ACTIONS, null, params);
+            if (!remoteActionBundle.getBoolean(EXTRA_SUCCESS, true)) return false;

            synchronized (mModelLock) {
                // Remove the entries for requested packages, and then update the fist with what we
@@ -281,9 +283,9 @@ public final class WellbeingModel {
                // Remove all existing messages
                mWorkerHandler.removeCallbacksAndMessages(null);
                final String[] packageNames = mContext.getSystemService(LauncherApps.class)
-                            .getActivityList(null, Process.myUserHandle()).stream()
-                            .map(li -> li.getApplicationInfo().packageName).distinct()
-                            .toArray(String[]::new);
+                        .getActivityList(null, Process.myUserHandle()).stream()
+                        .map(li -> li.getApplicationInfo().packageName).distinct()
+                        .toArray(String[]::new);
                if (!updateActions(packageNames)) {
                    scheduleRefreshRetry(msg);
                }
@@ -17,6 +17,7 @@
 package com.android.launcher3.statehandlers;

 import static com.android.launcher3.anim.Interpolators.LINEAR;
+import static com.android.launcher3.states.StateAnimationConfig.ANIM_DEPTH;
 import static com.android.launcher3.states.StateAnimationConfig.SKIP_DEPTH_CONTROLLER;

 import android.os.IBinder;
@@ -191,11 +192,12 @@ public class DepthController implements StateHandler<LauncherState> {

        float toDepth = toState.getDepth(mLauncher);
        if (Float.compare(mDepth, toDepth) != 0) {
-            animation.setFloat(this, DEPTH, toDepth, LINEAR);
+            animation.setFloat(this, DEPTH, toDepth, config.getInterpolator(ANIM_DEPTH, LINEAR));
        }
    }

    private void setDepth(float depth) {
+        depth = Utilities.boundToRange(depth, 0, 1);
        // Round out the depth to dedupe frequent, non-perceptable updates
        int depthI = (int) (depth * 256);
        float depthF = depthI / 256f;
@@ -36,6 +36,7 @@ import android.view.Surface;

 import com.android.launcher3.R;
 import com.android.launcher3.ResourceUtils;
+import com.android.launcher3.testing.TestProtocol;
 import com.android.launcher3.util.DefaultDisplay;

 import java.io.PrintWriter;
@@ -246,6 +247,10 @@ class OrientationTouchTransformer {
    }

    boolean touchInValidSwipeRegions(float x, float y) {
+        if (TestProtocol.sDebugTracing) {
+            Log.d(TestProtocol.NO_SWIPE_TO_HOME, "touchInValidSwipeRegions " + x + "," + y + " in "
+                    + mLastRectTouched);
+        }
        if (mLastRectTouched != null) {
            return mLastRectTouched.contains(x, y);
        }
@@ -287,10 +292,16 @@ class OrientationTouchTransformer {

                for (int i = 0; i < MAX_ORIENTATIONS; i++) {
                    OrientationRectF rect = mSwipeTouchRegions.get(i);
+                    if (TestProtocol.sDebugTracing) {
+                        Log.d(TestProtocol.NO_SWIPE_TO_HOME, "transform:DOWN, rect=" + rect);
+                    }
                    if (rect == null) {
                        continue;
                    }
                    if (rect.applyTransform(event, false)) {
+                        if (TestProtocol.sDebugTracing) {
+                            Log.d(TestProtocol.NO_SWIPE_TO_HOME, "setting mLastRectTouched");
+                        }
                        mLastRectTouched = rect;
                        mLastRectRotation = rect.mRotation;
                        if (mEnableMultipleRegions && mCurrentDisplayRotation == mLastRectRotation) {
@@ -525,13 +525,15 @@ public class RecentsAnimationDeviceState implements

    /**
     * @param ev An ACTION_DOWN motion event
-     * @return whether the given motion event can trigger the assistant.
+     * @param task Info for the currently running task
+     * @return whether the given motion event can trigger the assistant over the current task.
     */
-    public boolean canTriggerAssistantAction(MotionEvent ev) {
+    public boolean canTriggerAssistantAction(MotionEvent ev, ActivityManager.RunningTaskInfo task) {
        return mAssistantAvailable
                && !QuickStepContract.isAssistantGestureDisabled(mSystemUiStateFlags)
                && mOrientationTouchTransformer.touchInAssistantRegion(ev)
-                && !isLockToAppActive();
+                && !isLockToAppActive()
+                && !isGestureBlockedActivity(task);
    }

    /**
@@ -16,19 +16,16 @@
 package com.android.quickstep;

 import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
-import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplierCompat;

-import java.util.ArrayDeque;
 import java.util.ArrayList;
-import java.util.Queue;
+import java.util.concurrent.CopyOnWriteArrayList;

 /**
 * Holds a collection of RemoteAnimationTargets, filtered by different properties.
 */
 public class RemoteAnimationTargets {

-    private final Queue<SyncRtSurfaceTransactionApplierCompat> mDependentTransactionAppliers =
-            new ArrayDeque<>(1);
+    private final CopyOnWriteArrayList<ReleaseCheck> mReleaseChecks = new CopyOnWriteArrayList<>();

    public final RemoteAnimationTargetCompat[] unfilteredApps;
    public final RemoteAnimationTargetCompat[] apps;
@@ -36,6 +33,8 @@ public class RemoteAnimationTargets {
    public final int targetMode;
    public final boolean hasRecents;

+    private boolean mReleased = false;
+
    public RemoteAnimationTargets(RemoteAnimationTargetCompat[] apps,
            RemoteAnimationTargetCompat[] wallpapers, int targetMode) {
        ArrayList<RemoteAnimationTargetCompat> filteredApps = new ArrayList<>();
@@ -76,21 +75,65 @@ public class RemoteAnimationTargets {
        return false;
    }

-    public void addDependentTransactionApplier(SyncRtSurfaceTransactionApplierCompat delay) {
-        mDependentTransactionAppliers.add(delay);
+    public void addReleaseCheck(ReleaseCheck check) {
+        mReleaseChecks.add(check);
    }

    public void release() {
-        SyncRtSurfaceTransactionApplierCompat applier = mDependentTransactionAppliers.poll();
-        if (applier == null) {
-            for (RemoteAnimationTargetCompat target : unfilteredApps) {
-                target.release();
+        if (mReleased) {
+            return;
+        }
+        for (ReleaseCheck check : mReleaseChecks) {
+            if (!check.mCanRelease) {
+                check.addOnSafeToReleaseCallback(this::release);
+                return;
            }
-            for (RemoteAnimationTargetCompat target : wallpapers) {
-                target.release();
+        }
+        mReleaseChecks.clear();
+        mReleased = true;
+
+        for (RemoteAnimationTargetCompat target : unfilteredApps) {
+            target.release();
+        }
+        for (RemoteAnimationTargetCompat target : wallpapers) {
+            target.release();
+        }
+    }
+
+    /**
+     * Interface for intercepting surface release method
+     */
+    public static class ReleaseCheck {
+
+        boolean mCanRelease = false;
+        private Runnable mAfterApplyCallback;
+
+        protected void setCanRelease(boolean canRelease) {
+            mCanRelease = canRelease;
+            if (mCanRelease && mAfterApplyCallback != null) {
+                Runnable r = mAfterApplyCallback;
+                mAfterApplyCallback = null;
+                r.run();
+            }
+        }
+
+        /**
+         * Adds a callback to notify when the surface can safely be released
+         */
+        void addOnSafeToReleaseCallback(Runnable callback) {
+            if (mCanRelease) {
+                callback.run();
+            } else {
+                if (mAfterApplyCallback == null) {
+                    mAfterApplyCallback = callback;
+                } else {
+                    final Runnable oldCallback = mAfterApplyCallback;
+                    mAfterApplyCallback = () -> {
+                        callback.run();
+                        oldCallback.run();
+                    };
+                }
            }
-        } else {
-            applier.addAfterApplyCallback(this::release);
        }
    }
 }
@@ -34,14 +34,6 @@ final class BackGestureTutorialController extends TutorialController {
        super(fragment, tutorialType);
    }

-    @Override
-    void transitToController() {
-        super.transitToController();
-        if (mTutorialType != BACK_NAVIGATION_COMPLETE) {
-            showHandCoachingAnimation();
-        }
-    }
-
    @Override
    Integer getTitleStringId() {
        switch (mTutorialType) {
@@ -280,7 +280,11 @@ public class EdgeBackGesturePanel extends View {
                new SpringForce()
                        .setStiffness(SpringForce.STIFFNESS_MEDIUM)
                        .setDampingRatio(SpringForce.DAMPING_RATIO_LOW_BOUNCY));
-        mPaint.setColor(context.getColor(R.color.back_arrow_color_dark));
+        int currentNightMode =
+                context.getResources().getConfiguration().uiMode & Configuration.UI_MODE_NIGHT_MASK;
+        mPaint.setColor(context.getColor(currentNightMode == Configuration.UI_MODE_NIGHT_YES
+                ? R.color.back_arrow_color_light
+                : R.color.back_arrow_color_dark));
        loadDimens();
        updateArrowDirection();

@@ -15,143 +15,23 @@
 */
 package com.android.quickstep.interaction;

-import static com.android.launcher3.anim.Interpolators.ACCEL;
-import static com.android.launcher3.util.DefaultDisplay.getSingleFrameMs;
-import static com.android.quickstep.BaseSwipeUpHandlerV2.MAX_SWIPE_DURATION;
 import static com.android.quickstep.interaction.TutorialController.TutorialType.HOME_NAVIGATION_COMPLETE;

-import android.animation.Animator;
-import android.animation.AnimatorListenerAdapter;
-import android.animation.AnimatorSet;
 import android.annotation.TargetApi;
-import android.content.Context;
-import android.graphics.Insets;
-import android.graphics.Outline;
 import android.graphics.PointF;
-import android.graphics.Rect;
-import android.graphics.RectF;
 import android.os.Build;
-import android.view.SurfaceControl;
 import android.view.View;
-import android.view.ViewOutlineProvider;
-import android.view.WindowInsets.Type;
-import android.view.WindowManager;

-import androidx.annotation.NonNull;
-import androidx.annotation.Nullable;
-
-import com.android.launcher3.DeviceProfile;
-import com.android.launcher3.InvariantDeviceProfile;
 import com.android.launcher3.R;
-import com.android.launcher3.Utilities;
-import com.android.launcher3.anim.AnimationSuccessListener;
-import com.android.launcher3.anim.AnimatorPlaybackController;
-import com.android.launcher3.anim.PendingAnimation;
-import com.android.quickstep.AnimatedFloat;
-import com.android.quickstep.GestureState;
-import com.android.quickstep.OverviewComponentObserver;
-import com.android.quickstep.RecentsAnimationDeviceState;
-import com.android.quickstep.SwipeUpAnimationLogic;
-import com.android.quickstep.SwipeUpAnimationLogic.RunningWindowAnim;
 import com.android.quickstep.interaction.EdgeBackGestureHandler.BackGestureResult;
 import com.android.quickstep.interaction.NavBarGestureHandler.NavBarGestureResult;
-import com.android.quickstep.util.RectFSpringAnim;
-import com.android.quickstep.util.TransformParams;
-import com.android.systemui.shared.system.QuickStepContract;
-import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplierCompat.SurfaceParams;

 /** A {@link TutorialController} for the Home tutorial. */
@TargetApi(Build.VERSION_CODES.R)
-final class HomeGestureTutorialController extends TutorialController {
-
-    private float mFakeTaskViewRadius;
-    private Rect mFakeTaskViewRect = new Rect();
-
-    private final ViewSwipeUpAnimation mViewSwipeUpAnimation;
-    private RunningWindowAnim mRunningWindowAnim;
+final class HomeGestureTutorialController extends SwipeUpGestureTutorialController {

    HomeGestureTutorialController(HomeGestureTutorialFragment fragment, TutorialType tutorialType) {
        super(fragment, tutorialType);
-
-        RecentsAnimationDeviceState deviceState = new RecentsAnimationDeviceState(mContext);
-        OverviewComponentObserver observer = new OverviewComponentObserver(mContext, deviceState);
-        mViewSwipeUpAnimation = new ViewSwipeUpAnimation(mContext, deviceState,
-                new GestureState(observer, -1));
-        observer.onDestroy();
-        deviceState.destroy();
-
-        DeviceProfile dp = InvariantDeviceProfile.INSTANCE.get(mContext)
-                .getDeviceProfile(mContext)
-                .copy(mContext);
-        Insets insets = mContext.getSystemService(WindowManager.class)
-                .getCurrentWindowMetrics()
-                .getWindowInsets()
-                .getInsets(Type.systemBars());
-        dp.updateInsets(new Rect(insets.left, insets.top, insets.right, insets.bottom));
-        mViewSwipeUpAnimation.initDp(dp);
-
-        mFakeTaskViewRadius = QuickStepContract.getWindowCornerRadius(mContext.getResources());
-
-        mFakeTaskView.setClipToOutline(true);
-        mFakeTaskView.setOutlineProvider(new ViewOutlineProvider() {
-            @Override
-            public void getOutline(View view, Outline outline) {
-                outline.setRoundRect(mFakeTaskViewRect, mFakeTaskViewRadius);
-            }
-        });
-    }
-
-    private void cancelRunningAnimation() {
-        if (mRunningWindowAnim != null) {
-            mRunningWindowAnim.cancel();
-        }
-        mRunningWindowAnim = null;
-    }
-
-    /** Fades the task view, optionally after animating to a fake Overview. */
-    private void fadeOutFakeTaskView(boolean toOverviewFirst, @Nullable Runnable onEndRunnable) {
-        cancelRunningAnimation();
-        PendingAnimation anim = new PendingAnimation(300);
-        AnimatorListenerAdapter resetTaskView = new AnimatorListenerAdapter() {
-            @Override
-            public void onAnimationEnd(Animator animation, boolean isReverse) {
-                mFakeTaskView.setVisibility(View.INVISIBLE);
-                mFakeTaskView.setAlpha(1);
-                mRunningWindowAnim = null;
-            }
-        };
-        if (toOverviewFirst) {
-            anim.setFloat(mViewSwipeUpAnimation.getCurrentShift(), AnimatedFloat.VALUE, 1, ACCEL);
-            anim.addListener(new AnimatorListenerAdapter() {
-                @Override
-                public void onAnimationEnd(Animator animation, boolean isReverse) {
-                    PendingAnimation fadeAnim = new PendingAnimation(300);
-                    fadeAnim.setViewAlpha(mFakeTaskView, 0, ACCEL);
-                    fadeAnim.addListener(resetTaskView);
-                    AnimatorSet animset = fadeAnim.buildAnim();
-                    animset.setStartDelay(100);
-                    animset.start();
-                    mRunningWindowAnim = RunningWindowAnim.wrap(animset);
-                }
-            });
-        } else {
-            anim.setViewAlpha(mFakeTaskView, 0, ACCEL);
-            anim.addListener(resetTaskView);
-        }
-        if (onEndRunnable != null) {
-            anim.addListener(AnimationSuccessListener.forRunnable(onEndRunnable));
-        }
-        AnimatorSet animset = anim.buildAnim();
-        animset.start();
-        mRunningWindowAnim = RunningWindowAnim.wrap(animset);
-    }
-
-    @Override
-    void transitToController() {
-        super.transitToController();
-        if (mTutorialType != HOME_NAVIGATION_COMPLETE) {
-            showHandCoachingAnimation();
-        }
    }

    @Override
@@ -190,6 +70,14 @@ final class HomeGestureTutorialController extends TutorialController {
    public void onBackGestureAttempted(BackGestureResult result) {
        switch (mTutorialType) {
            case HOME_NAVIGATION:
+                switch (result) {
+                    case BACK_COMPLETED_FROM_LEFT:
+                    case BACK_COMPLETED_FROM_RIGHT:
+                    case BACK_CANCELLED_FROM_LEFT:
+                    case BACK_CANCELLED_FROM_RIGHT:
+                        showFeedback(R.string.home_gesture_feedback_swipe_too_far_from_edge);
+                        break;
+                }
                break;
            case HOME_NAVIGATION_COMPLETE:
                if (result == BackGestureResult.BACK_COMPLETED_FROM_LEFT
@@ -206,17 +94,8 @@ final class HomeGestureTutorialController extends TutorialController {
            case HOME_NAVIGATION:
                switch (result) {
                    case HOME_GESTURE_COMPLETED: {
-                        hideFeedback();
-                        cancelRunningAnimation();
-                        hideHandCoachingAnimation();
-                        RectFSpringAnim rectAnim =
-                                mViewSwipeUpAnimation.handleSwipeUpToHome(finalVelocity);
-                        // After home animation finishes, fade out and then move to the next screen.
-                        rectAnim.addAnimatorListener(AnimationSuccessListener.forRunnable(
-                                () -> fadeOutFakeTaskView(false,
-                                        () -> mTutorialFragment.changeController(
-                                                HOME_NAVIGATION_COMPLETE))));
-                        mRunningWindowAnim = RunningWindowAnim.wrap(rectAnim);
+                        animateFakeTaskViewHome(finalVelocity, () ->
+                                mTutorialFragment.changeController(HOME_NAVIGATION_COMPLETE));
                        break;
                    }
                    case HOME_NOT_STARTED_TOO_FAR_FROM_EDGE:
@@ -242,93 +121,4 @@ final class HomeGestureTutorialController extends TutorialController {
        }
    }

-    @Override
-    public void setNavBarGestureProgress(@Nullable Float displacement) {
-        if (displacement == null || mTutorialType == HOME_NAVIGATION_COMPLETE) {
-            mFakeTaskView.setVisibility(View.INVISIBLE);
-        } else {
-            mFakeTaskView.setVisibility(View.VISIBLE);
-            if (mRunningWindowAnim == null) {
-                mViewSwipeUpAnimation.updateDisplacement(displacement);
-            }
-        }
-    }
-
-    private class ViewSwipeUpAnimation extends SwipeUpAnimationLogic {
-
-        ViewSwipeUpAnimation(Context context, RecentsAnimationDeviceState deviceState,
-                             GestureState gestureState) {
-            super(context, deviceState, gestureState, new FakeTransformParams());
-        }
-
-        void initDp(DeviceProfile dp) {
-            initTransitionEndpoints(dp);
-            mTaskViewSimulator.setPreviewBounds(
-                    new Rect(0, 0, dp.widthPx, dp.heightPx), dp.getInsets());
-        }
-
-        @Override
-        public void updateFinalShift() {
-            float progress = mCurrentShift.value / mDragLengthFactor;
-            mWindowTransitionController.setPlayFraction(progress);
-            mTaskViewSimulator.apply(mTransformParams);
-        }
-
-        AnimatedFloat getCurrentShift() {
-            return mCurrentShift;
-        }
-
-        RectFSpringAnim handleSwipeUpToHome(PointF velocity) {
-            PointF velocityPxPerMs = new PointF(velocity.x, velocity.y);
-            float currentShift = mCurrentShift.value;
-            final float startShift = Utilities.boundToRange(currentShift - velocityPxPerMs.y
-                    * getSingleFrameMs(mContext) / mTransitionDragLength, 0, mDragLengthFactor);
-            float distanceToTravel = (1 - currentShift) * mTransitionDragLength;
-
-            // we want the page's snap velocity to approximately match the velocity at
-            // which the user flings, so we scale the duration by a value near to the
-            // derivative of the scroll interpolator at zero, ie. 2.
-            long baseDuration = Math.round(Math.abs(distanceToTravel / velocityPxPerMs.y));
-            long duration = Math.min(MAX_SWIPE_DURATION, 2 * baseDuration);
-            HomeAnimationFactory homeAnimFactory = new HomeAnimationFactory(null) {
-                @Override
-                public AnimatorPlaybackController createActivityAnimationToHome() {
-                    return AnimatorPlaybackController.wrap(new AnimatorSet(), duration);
-                }
-
-                @NonNull
-                @Override
-                public RectF getWindowTargetRect() {
-                    int fakeHomeIconSizePx = mDp.allAppsIconSizePx;
-                    int fakeHomeIconLeft = (mDp.widthPx - fakeHomeIconSizePx) / 2;
-                    int fakeHomeIconTop = mDp.heightPx - (mDp.allAppsCellHeightPx * 3);
-                    return new RectF(fakeHomeIconLeft, fakeHomeIconTop,
-                            fakeHomeIconLeft + fakeHomeIconSizePx,
-                            fakeHomeIconTop + fakeHomeIconSizePx);
-                }
-            };
-            RectFSpringAnim windowAnim = createWindowAnimationToHome(startShift, homeAnimFactory);
-            windowAnim.start(mContext, velocityPxPerMs);
-            return windowAnim;
-        }
-    }
-
-    private class FakeTransformParams extends TransformParams {
-
-        @Override
-        public SurfaceParams[] createSurfaceParams(BuilderProxy proxy) {
-            SurfaceParams.Builder builder = new SurfaceParams.Builder((SurfaceControl) null);
-            proxy.onBuildTargetParams(builder, null, this);
-            return new SurfaceParams[] {builder.build()};
-        }
-
-        @Override
-        public void applySurfaceParams(SurfaceParams[] params) {
-            SurfaceParams p = params[0];
-            mFakeTaskView.setAnimationMatrix(p.matrix);
-            mFakeTaskViewRect.set(p.windowCrop);
-            mFakeTaskViewRadius = p.cornerRadius;
-            mFakeTaskView.invalidateOutline();
-        }
-    }
 }
@@ -0,0 +1,124 @@
+/*
+ * 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.interaction;
+
+import static com.android.quickstep.interaction.TutorialController.TutorialType.OVERVIEW_NAVIGATION_COMPLETE;
+
+import android.annotation.TargetApi;
+import android.graphics.PointF;
+import android.os.Build;
+import android.view.View;
+
+import com.android.launcher3.R;
+import com.android.quickstep.interaction.EdgeBackGestureHandler.BackGestureResult;
+import com.android.quickstep.interaction.NavBarGestureHandler.NavBarGestureResult;
+
+/** A {@link TutorialController} for the Overview tutorial. */
+@TargetApi(Build.VERSION_CODES.R)
+final class OverviewGestureTutorialController extends SwipeUpGestureTutorialController {
+
+    OverviewGestureTutorialController(OverviewGestureTutorialFragment fragment,
+            TutorialType tutorialType) {
+        super(fragment, tutorialType);
+    }
+
+    @Override
+    Integer getTitleStringId() {
+        switch (mTutorialType) {
+            case OVERVIEW_NAVIGATION:
+                return R.string.overview_gesture_tutorial_playground_title;
+            case OVERVIEW_NAVIGATION_COMPLETE:
+                return R.string.gesture_tutorial_confirm_title;
+        }
+        return null;
+    }
+
+    @Override
+    Integer getSubtitleStringId() {
+        if (mTutorialType == TutorialType.OVERVIEW_NAVIGATION) {
+            return R.string.overview_gesture_tutorial_playground_subtitle;
+        }
+        return null;
+    }
+
+    @Override
+    Integer getActionButtonStringId() {
+        if (mTutorialType == OVERVIEW_NAVIGATION_COMPLETE) {
+            return R.string.gesture_tutorial_action_button_label_done;
+        }
+        return null;
+    }
+
+    @Override
+    void onActionButtonClicked(View button) {
+        mTutorialFragment.closeTutorial();
+    }
+
+    @Override
+    public void onBackGestureAttempted(BackGestureResult result) {
+        switch (mTutorialType) {
+            case OVERVIEW_NAVIGATION:
+                switch (result) {
+                    case BACK_COMPLETED_FROM_LEFT:
+                    case BACK_COMPLETED_FROM_RIGHT:
+                    case BACK_CANCELLED_FROM_LEFT:
+                    case BACK_CANCELLED_FROM_RIGHT:
+                        showFeedback(R.string.overview_gesture_feedback_swipe_too_far_from_edge);
+                        break;
+                }
+                break;
+            case OVERVIEW_NAVIGATION_COMPLETE:
+                if (result == BackGestureResult.BACK_COMPLETED_FROM_LEFT
+                        || result == BackGestureResult.BACK_COMPLETED_FROM_RIGHT) {
+                    mTutorialFragment.closeTutorial();
+                }
+                break;
+        }
+    }
+
+    @Override
+    public void onNavBarGestureAttempted(NavBarGestureResult result, PointF finalVelocity) {
+        switch (mTutorialType) {
+            case OVERVIEW_NAVIGATION:
+                switch (result) {
+                    case HOME_GESTURE_COMPLETED: {
+                        animateFakeTaskViewHome(finalVelocity, () ->
+                                showFeedback(R.string.overview_gesture_feedback_home_detected));
+                        break;
+                    }
+                    case HOME_NOT_STARTED_TOO_FAR_FROM_EDGE:
+                    case OVERVIEW_NOT_STARTED_TOO_FAR_FROM_EDGE:
+                        showFeedback(R.string.overview_gesture_feedback_swipe_too_far_from_edge);
+                        break;
+                    case OVERVIEW_GESTURE_COMPLETED:
+                        fadeOutFakeTaskView(true, () ->
+                                mTutorialFragment.changeController(OVERVIEW_NAVIGATION_COMPLETE));
+                        break;
+                    case HOME_OR_OVERVIEW_NOT_STARTED_WRONG_SWIPE_DIRECTION:
+                    case HOME_OR_OVERVIEW_CANCELLED:
+                        fadeOutFakeTaskView(false, null);
+                        showFeedback(R.string.overview_gesture_feedback_wrong_swipe_direction);
+                        break;
+                }
+                break;
+            case OVERVIEW_NAVIGATION_COMPLETE:
+                if (result == NavBarGestureResult.HOME_GESTURE_COMPLETED) {
+                    mTutorialFragment.closeTutorial();
+                }
+                break;
+        }
+    }
+}
@@ -0,0 +1,37 @@
+/*
+ * 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.interaction;
+
+import com.android.launcher3.R;
+import com.android.quickstep.interaction.TutorialController.TutorialType;
+
+/** Shows the Overview gesture interactive tutorial. */
+public class OverviewGestureTutorialFragment extends TutorialFragment {
+    @Override
+    int getHandAnimationResId() {
+        return R.drawable.overview_gesture;
+    }
+
+    @Override
+    TutorialController createController(TutorialType type) {
+        return new OverviewGestureTutorialController(this, type);
+    }
+
+    @Override
+    Class<? extends TutorialController> getControllerClass() {
+        return OverviewGestureTutorialController.class;
+    }
+}
@@ -0,0 +1,246 @@
+/*
+ * 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.interaction;
+
+import static com.android.launcher3.anim.Interpolators.ACCEL;
+import static com.android.launcher3.util.DefaultDisplay.getSingleFrameMs;
+import static com.android.quickstep.BaseSwipeUpHandlerV2.MAX_SWIPE_DURATION;
+import static com.android.quickstep.interaction.TutorialController.TutorialType.HOME_NAVIGATION_COMPLETE;
+import static com.android.quickstep.interaction.TutorialController.TutorialType.OVERVIEW_NAVIGATION_COMPLETE;
+
+import android.animation.Animator;
+import android.animation.AnimatorListenerAdapter;
+import android.animation.AnimatorSet;
+import android.annotation.TargetApi;
+import android.content.Context;
+import android.graphics.Insets;
+import android.graphics.Outline;
+import android.graphics.PointF;
+import android.graphics.Rect;
+import android.graphics.RectF;
+import android.os.Build;
+import android.view.SurfaceControl;
+import android.view.View;
+import android.view.ViewOutlineProvider;
+import android.view.WindowInsets;
+import android.view.WindowManager;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+import com.android.launcher3.DeviceProfile;
+import com.android.launcher3.InvariantDeviceProfile;
+import com.android.launcher3.Utilities;
+import com.android.launcher3.anim.AnimationSuccessListener;
+import com.android.launcher3.anim.AnimatorPlaybackController;
+import com.android.launcher3.anim.PendingAnimation;
+import com.android.quickstep.AnimatedFloat;
+import com.android.quickstep.GestureState;
+import com.android.quickstep.OverviewComponentObserver;
+import com.android.quickstep.RecentsAnimationDeviceState;
+import com.android.quickstep.SwipeUpAnimationLogic;
+import com.android.quickstep.SwipeUpAnimationLogic.RunningWindowAnim;
+import com.android.quickstep.util.RectFSpringAnim;
+import com.android.quickstep.util.TransformParams;
+import com.android.systemui.shared.system.QuickStepContract;
+import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplierCompat.SurfaceParams;
+
+@TargetApi(Build.VERSION_CODES.R)
+abstract class SwipeUpGestureTutorialController extends TutorialController {
+    private final ViewSwipeUpAnimation mViewSwipeUpAnimation;
+    private float mFakeTaskViewRadius;
+    private Rect mFakeTaskViewRect = new Rect();
+    private RunningWindowAnim mRunningWindowAnim;
+
+    SwipeUpGestureTutorialController(TutorialFragment tutorialFragment, TutorialType tutorialType) {
+        super(tutorialFragment, tutorialType);
+        RecentsAnimationDeviceState deviceState = new RecentsAnimationDeviceState(mContext);
+        OverviewComponentObserver observer = new OverviewComponentObserver(mContext, deviceState);
+        mViewSwipeUpAnimation = new ViewSwipeUpAnimation(mContext, deviceState,
+                new GestureState(observer, -1));
+        observer.onDestroy();
+        deviceState.destroy();
+
+        DeviceProfile dp = InvariantDeviceProfile.INSTANCE.get(mContext)
+                .getDeviceProfile(mContext)
+                .copy(mContext);
+        Insets insets = mContext.getSystemService(WindowManager.class)
+                .getCurrentWindowMetrics()
+                .getWindowInsets()
+                .getInsets(WindowInsets.Type.systemBars());
+        dp.updateInsets(new Rect(insets.left, insets.top, insets.right, insets.bottom));
+        mViewSwipeUpAnimation.initDp(dp);
+
+        mFakeTaskViewRadius = QuickStepContract.getWindowCornerRadius(mContext.getResources());
+        mFakeTaskView.setClipToOutline(true);
+        mFakeTaskView.setOutlineProvider(new ViewOutlineProvider() {
+            @Override
+            public void getOutline(View view, Outline outline) {
+                outline.setRoundRect(mFakeTaskViewRect, mFakeTaskViewRadius);
+            }
+        });
+    }
+
+    private void cancelRunningAnimation() {
+        if (mRunningWindowAnim != null) {
+            mRunningWindowAnim.cancel();
+        }
+        mRunningWindowAnim = null;
+    }
+
+    /** Fades the task view, optionally after animating to a fake Overview. */
+    void fadeOutFakeTaskView(boolean toOverviewFirst, @Nullable Runnable onEndRunnable) {
+        hideFeedback();
+        hideHandCoachingAnimation();
+        cancelRunningAnimation();
+        PendingAnimation anim = new PendingAnimation(300);
+        AnimatorListenerAdapter resetTaskView = new AnimatorListenerAdapter() {
+            @Override
+            public void onAnimationEnd(Animator animation, boolean isReverse) {
+                mFakeTaskView.setVisibility(View.INVISIBLE);
+                mFakeTaskView.setAlpha(1);
+                mRunningWindowAnim = null;
+            }
+        };
+        if (toOverviewFirst) {
+            anim.setFloat(mViewSwipeUpAnimation.getCurrentShift(), AnimatedFloat.VALUE, 1, ACCEL);
+            anim.addListener(new AnimatorListenerAdapter() {
+                @Override
+                public void onAnimationEnd(Animator animation, boolean isReverse) {
+                    PendingAnimation fadeAnim = new PendingAnimation(300);
+                    fadeAnim.setViewAlpha(mFakeTaskView, 0, ACCEL);
+                    fadeAnim.addListener(resetTaskView);
+                    AnimatorSet animset = fadeAnim.buildAnim();
+                    animset.setStartDelay(100);
+                    animset.start();
+                    mRunningWindowAnim = RunningWindowAnim.wrap(animset);
+                }
+            });
+        } else {
+            anim.setViewAlpha(mFakeTaskView, 0, ACCEL);
+            anim.addListener(resetTaskView);
+        }
+        if (onEndRunnable != null) {
+            anim.addListener(AnimationSuccessListener.forRunnable(onEndRunnable));
+        }
+        AnimatorSet animset = anim.buildAnim();
+        animset.start();
+        mRunningWindowAnim = RunningWindowAnim.wrap(animset);
+    }
+
+    void animateFakeTaskViewHome(PointF finalVelocity, @Nullable Runnable onEndRunnable) {
+        hideFeedback();
+        hideHandCoachingAnimation();
+        cancelRunningAnimation();
+        RectFSpringAnim rectAnim =
+                mViewSwipeUpAnimation.handleSwipeUpToHome(finalVelocity);
+        // After home animation finishes, fade out and run onEndRunnable.
+        rectAnim.addAnimatorListener(AnimationSuccessListener.forRunnable(
+                () -> fadeOutFakeTaskView(false, onEndRunnable)));
+        mRunningWindowAnim = RunningWindowAnim.wrap(rectAnim);
+    }
+
+    @Override
+    public void setNavBarGestureProgress(@Nullable Float displacement) {
+        if (displacement == null || mTutorialType == HOME_NAVIGATION_COMPLETE
+                || mTutorialType == OVERVIEW_NAVIGATION_COMPLETE) {
+            mFakeTaskView.setVisibility(View.INVISIBLE);
+        } else {
+            mFakeTaskView.setVisibility(View.VISIBLE);
+            if (mRunningWindowAnim == null) {
+                mViewSwipeUpAnimation.updateDisplacement(displacement);
+            }
+        }
+    }
+
+    class ViewSwipeUpAnimation extends SwipeUpAnimationLogic {
+
+        ViewSwipeUpAnimation(Context context, RecentsAnimationDeviceState deviceState,
+                             GestureState gestureState) {
+            super(context, deviceState, gestureState, new FakeTransformParams());
+        }
+
+        void initDp(DeviceProfile dp) {
+            initTransitionEndpoints(dp);
+            mTaskViewSimulator.setPreviewBounds(
+                    new Rect(0, 0, dp.widthPx, dp.heightPx), dp.getInsets());
+        }
+
+        @Override
+        public void updateFinalShift() {
+            float progress = mCurrentShift.value / mDragLengthFactor;
+            mWindowTransitionController.setPlayFraction(progress);
+            mTaskViewSimulator.apply(mTransformParams);
+        }
+
+        AnimatedFloat getCurrentShift() {
+            return mCurrentShift;
+        }
+
+        RectFSpringAnim handleSwipeUpToHome(PointF velocity) {
+            PointF velocityPxPerMs = new PointF(velocity.x, velocity.y);
+            float currentShift = mCurrentShift.value;
+            final float startShift = Utilities.boundToRange(currentShift - velocityPxPerMs.y
+                    * getSingleFrameMs(mContext) / mTransitionDragLength, 0, mDragLengthFactor);
+            float distanceToTravel = (1 - currentShift) * mTransitionDragLength;
+
+            // we want the page's snap velocity to approximately match the velocity at
+            // which the user flings, so we scale the duration by a value near to the
+            // derivative of the scroll interpolator at zero, ie. 2.
+            long baseDuration = Math.round(Math.abs(distanceToTravel / velocityPxPerMs.y));
+            long duration = Math.min(MAX_SWIPE_DURATION, 2 * baseDuration);
+            HomeAnimationFactory homeAnimFactory = new HomeAnimationFactory(null) {
+                @Override
+                public AnimatorPlaybackController createActivityAnimationToHome() {
+                    return AnimatorPlaybackController.wrap(new AnimatorSet(), duration);
+                }
+
+                @NonNull
+                @Override
+                public RectF getWindowTargetRect() {
+                    int fakeHomeIconSizePx = mDp.allAppsIconSizePx;
+                    int fakeHomeIconLeft = (mDp.widthPx - fakeHomeIconSizePx) / 2;
+                    int fakeHomeIconTop = mDp.heightPx - (mDp.allAppsCellHeightPx * 3);
+                    return new RectF(fakeHomeIconLeft, fakeHomeIconTop,
+                            fakeHomeIconLeft + fakeHomeIconSizePx,
+                            fakeHomeIconTop + fakeHomeIconSizePx);
+                }
+            };
+            RectFSpringAnim windowAnim = createWindowAnimationToHome(startShift, homeAnimFactory);
+            windowAnim.start(mContext, velocityPxPerMs);
+            return windowAnim;
+        }
+    }
+
+    private class FakeTransformParams extends TransformParams {
+
+        @Override
+        public SurfaceParams[] createSurfaceParams(BuilderProxy proxy) {
+            SurfaceParams.Builder builder = new SurfaceParams.Builder((SurfaceControl) null);
+            proxy.onBuildTargetParams(builder, null, this);
+            return new SurfaceParams[] {builder.build()};
+        }
+
+        @Override
+        public void applySurfaceParams(SurfaceParams[] params) {
+            SurfaceParams p = params[0];
+            mFakeTaskView.setAnimationMatrix(p.matrix);
+            mFakeTaskViewRect.set(p.windowCrop);
+            mFakeTaskViewRadius = p.cornerRadius;
+            mFakeTaskView.invalidateOutline();
+        }
+    }
+}
@@ -140,6 +140,9 @@ abstract class TutorialController implements BackGestureAttemptCallback,
    void onActionTextButtonClicked(View button) {}

    void showHandCoachingAnimation() {
+        if (isComplete()) {
+            return;
+        }
        mHandCoachingAnimation.startLoopedAnimation(mTutorialType);
    }

@@ -153,6 +156,12 @@ abstract class TutorialController implements BackGestureAttemptCallback,
        hideFeedback();
        updateTitles();
        updateActionButtons();
+
+        if (isComplete()) {
+            hideHandCoachingAnimation();
+        } else {
+            showHandCoachingAnimation();
+        }
    }

    private void updateTitles() {
@@ -190,12 +199,20 @@ abstract class TutorialController implements BackGestureAttemptCallback,
        button.setOnClickListener(listener);
    }

+    private boolean isComplete() {
+        return mTutorialType == TutorialType.BACK_NAVIGATION_COMPLETE
+                || mTutorialType == TutorialType.HOME_NAVIGATION_COMPLETE
+                || mTutorialType == TutorialType.OVERVIEW_NAVIGATION_COMPLETE;
+    }
+
    /** Denotes the type of the tutorial. */
    enum TutorialType {
        RIGHT_EDGE_BACK_NAVIGATION,
        LEFT_EDGE_BACK_NAVIGATION,
        BACK_NAVIGATION_COMPLETE,
        HOME_NAVIGATION,
-        HOME_NAVIGATION_COMPLETE
+        HOME_NAVIGATION_COMPLETE,
+        OVERVIEW_NAVIGATION,
+        OVERVIEW_NAVIGATION_COMPLETE
    }
 }
@@ -68,6 +68,9 @@ abstract class TutorialFragment extends Fragment implements OnTouchListener {
            case HOME_NAVIGATION:
            case HOME_NAVIGATION_COMPLETE:
                return new HomeGestureTutorialFragment();
+            case OVERVIEW_NAVIGATION:
+            case OVERVIEW_NAVIGATION_COMPLETE:
+                return new OverviewGestureTutorialFragment();
            default:
                Log.e(LOG_TAG, "Failed to find an appropriate fragment for " + tutorialType.name());
        }