Merge "Moving taskbar lifecycle to TouchInteractionService" into sc-dev
diff --git a/quickstep/res/values/dimens.xml b/quickstep/res/values/dimens.xml
index ad20c30..632bb4c 100644
--- a/quickstep/res/values/dimens.xml
+++ b/quickstep/res/values/dimens.xml
@@ -39,6 +39,11 @@
     <dimen name="overview_grid_focus_vertical_margin">90dp</dimen>
     <dimen name="split_placeholder_size">110dp</dimen>
 
+    <!-- These speeds are in dp/s -->
+    <dimen name="max_task_dismiss_drag_velocity">2.25dp</dimen>
+    <dimen name="default_task_dismiss_drag_velocity">1.75dp</dimen>
+    <dimen name="default_task_dismiss_drag_velocity_grid">0.75dp</dimen>
+
     <dimen name="recents_page_spacing">16dp</dimen>
     <dimen name="recents_clear_all_deadzone_vertical_margin">70dp</dimen>
 
diff --git a/quickstep/src/com/android/launcher3/QuickstepTransitionManager.java b/quickstep/src/com/android/launcher3/QuickstepTransitionManager.java
index 65dee55..80754a0 100644
--- a/quickstep/src/com/android/launcher3/QuickstepTransitionManager.java
+++ b/quickstep/src/com/android/launcher3/QuickstepTransitionManager.java
@@ -75,7 +75,6 @@
 import com.android.launcher3.shortcuts.DeepShortcutView;
 import com.android.launcher3.statehandlers.DepthController;
 import com.android.launcher3.util.ActivityOptionsWrapper;
-import com.android.launcher3.util.DynamicResource;
 import com.android.launcher3.util.MultiValueAlpha;
 import com.android.launcher3.util.MultiValueAlpha.AlphaProperty;
 import com.android.launcher3.util.RunnableList;
@@ -86,8 +85,8 @@
 import com.android.quickstep.TaskViewUtils;
 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.quickstep.util.WorkspaceRevealAnim;
 import com.android.quickstep.views.FloatingWidgetView;
 import com.android.quickstep.views.RecentsView;
 import com.android.systemui.shared.system.ActivityCompat;
@@ -1213,10 +1212,7 @@
                             }
                         });
                     } else {
-                        float velocityPxPerS = DynamicResource.provider(mLauncher)
-                                .getDimension(R.dimen.unlock_staggered_velocity_dp_per_s);
-                        anim.play(new StaggeredWorkspaceAnim(mLauncher, velocityPxPerS, false)
-                                .getAnimators());
+                        anim.play(new WorkspaceRevealAnim(mLauncher, false).getAnimators());
                     }
                 }
             }
diff --git a/quickstep/src/com/android/launcher3/uioverrides/QuickstepInteractionHandler.java b/quickstep/src/com/android/launcher3/uioverrides/QuickstepInteractionHandler.java
index 0014b85..3a8de3c 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/QuickstepInteractionHandler.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/QuickstepInteractionHandler.java
@@ -19,13 +19,13 @@
 import android.app.ActivityTaskManager;
 import android.app.PendingIntent;
 import android.content.Intent;
-import android.os.Build;
 import android.os.RemoteException;
 import android.util.Log;
 import android.util.Pair;
 import android.view.View;
 import android.widget.RemoteViews;
 
+import com.android.launcher3.Utilities;
 import com.android.launcher3.model.data.ItemInfo;
 import com.android.launcher3.util.ActivityOptionsWrapper;
 import com.android.launcher3.widget.LauncherAppWidgetHostView;
@@ -41,6 +41,7 @@
         mLauncher = launcher;
     }
 
+    @SuppressWarnings("NewApi")
     @Override
     public boolean onInteraction(View view, PendingIntent pendingIntent,
             RemoteViews.RemoteResponse remoteResponse) {
@@ -53,7 +54,7 @@
         Pair<Intent, ActivityOptions> options = remoteResponse.getLaunchOptions(hostView);
         ActivityOptionsWrapper activityOptions = mLauncher.getAppTransitionManager()
                 .getActivityLaunchOptions(mLauncher, hostView);
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S && !pendingIntent.isActivity()) {
+        if (Utilities.ATLEAST_S && !pendingIntent.isActivity()) {
             // In the event this pending intent eventually launches an activity, i.e. a trampoline,
             // use the Quickstep transition animation.
             try {
diff --git a/quickstep/src/com/android/launcher3/uioverrides/states/BackgroundAppState.java b/quickstep/src/com/android/launcher3/uioverrides/states/BackgroundAppState.java
index 77c2611..01c9e76 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/states/BackgroundAppState.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/states/BackgroundAppState.java
@@ -19,6 +19,7 @@
 
 import android.content.Context;
 import android.graphics.Color;
+import android.os.SystemProperties;
 
 import com.android.launcher3.BaseDraggingActivity;
 import com.android.launcher3.DeviceProfile;
@@ -84,7 +85,8 @@
 
     @Override
     protected float getDepthUnchecked(Context context) {
-        return 1f;
+        //TODO revert when b/178661709 is fixed
+        return SystemProperties.getBoolean("ro.launcher.depth.appLaunch", true) ? 1 : 0;
     }
 
     @Override
diff --git a/quickstep/src/com/android/launcher3/uioverrides/states/OverviewState.java b/quickstep/src/com/android/launcher3/uioverrides/states/OverviewState.java
index 45791a3..8c128c8 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/states/OverviewState.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/states/OverviewState.java
@@ -20,6 +20,7 @@
 
 import android.content.Context;
 import android.graphics.Rect;
+import android.os.SystemProperties;
 import android.view.View;
 
 import com.android.launcher3.DeviceProfile;
@@ -127,7 +128,8 @@
 
     @Override
     protected float getDepthUnchecked(Context context) {
-        return 1f;
+        //TODO revert when b/178661709 is fixed
+        return SystemProperties.getBoolean("ro.launcher.depth.overview", true) ? 1 : 0;
     }
 
     @Override
diff --git a/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/NoButtonQuickSwitchTouchController.java b/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/NoButtonQuickSwitchTouchController.java
index 5837a70..40c3e02 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/NoButtonQuickSwitchTouchController.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/NoButtonQuickSwitchTouchController.java
@@ -73,7 +73,7 @@
 import com.android.quickstep.util.AnimatorControllerWithResistance;
 import com.android.quickstep.util.LayoutUtils;
 import com.android.quickstep.util.MotionPauseDetector;
-import com.android.quickstep.util.StaggeredWorkspaceAnim;
+import com.android.quickstep.util.WorkspaceRevealAnim;
 import com.android.quickstep.views.LauncherRecentsView;
 
 /**
@@ -384,8 +384,7 @@
             updateNonOverviewAnim(targetState, config);
             nonOverviewAnim = mNonOverviewAnim.getAnimationPlayer();
 
-            new StaggeredWorkspaceAnim(mLauncher, velocity.y, false /* animateOverviewScrim */)
-                    .start();
+            new WorkspaceRevealAnim(mLauncher, false /* animateOverviewScrim */).start();
         } else {
             boolean canceled = targetState == NORMAL;
             if (canceled) {
diff --git a/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/TaskViewTouchController.java b/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/TaskViewTouchController.java
index 70b3870..c6ea953 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/TaskViewTouchController.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/TaskViewTouchController.java
@@ -28,6 +28,7 @@
 import com.android.launcher3.AbstractFloatingView;
 import com.android.launcher3.BaseDraggingActivity;
 import com.android.launcher3.LauncherAnimUtils;
+import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.anim.AnimatorPlaybackController;
 import com.android.launcher3.anim.Interpolators;
@@ -50,6 +51,10 @@
         extends AnimatorListenerAdapter implements TouchController,
         SingleAxisSwipeDetector.Listener {
 
+    private static final float ANIMATION_PROGRESS_FRACTION_MIDPOINT = 0.5f;
+    private static final long MIN_TASK_DISMISS_ANIMATION_DURATION = 300;
+    private static final long MAX_TASK_DISMISS_ANIMATION_DURATION = 600;
+
     protected final T mActivity;
     private final SingleAxisSwipeDetector mDetector;
     private final RecentsView mRecentsView;
@@ -277,14 +282,32 @@
         } else {
             mFlingBlockCheck.onEvent();
         }
-        mCurrentAnimation.setPlayFraction(Utilities.boundToRange(
-                totalDisplacement * mProgressMultiplier, 0, 1));
+
+        // Once halfway through task dismissal interpolation, switch from reversible dragging-task
+        // animation to playing the remaining task translation animations
+        if (mCurrentAnimation.getProgressFraction() < ANIMATION_PROGRESS_FRACTION_MIDPOINT) {
+            // Halve the value as we are animating the drag across the full length for only the
+            // first half of the progress
+            mCurrentAnimation.setPlayFraction(
+                    Utilities.boundToRange(totalDisplacement * mProgressMultiplier / 2, 0, 1));
+        } else {
+            float dragVelocity = -mTaskBeingDragged.getResources().getDimension(
+                    mRecentsView.showAsGrid() ? R.dimen.default_task_dismiss_drag_velocity_grid
+                            : R.dimen.default_task_dismiss_drag_velocity);
+            onDragEnd(dragVelocity);
+            return true;
+        }
 
         return true;
     }
 
     @Override
     public void onDragEnd(float velocity) {
+        // Limit velocity, as very large scalar values make animations play too quickly
+        float maxTaskDismissDragVelocity = mTaskBeingDragged.getResources().getDimension(
+                R.dimen.max_task_dismiss_drag_velocity);
+        velocity = Utilities.boundToRange(velocity, -maxTaskDismissDragVelocity,
+                maxTaskDismissDragVelocity);
         boolean fling = mDetector.isFling(velocity);
         final boolean goingToEnd;
         boolean blockedFling = fling && mFlingBlockCheck.isBlocked();
@@ -305,6 +328,11 @@
         if (blockedFling && !goingToEnd) {
             animationDuration *= LauncherAnimUtils.blockedFlingDurationFactor(velocity);
         }
+        // Due to very high or low velocity dismissals, animation durations can be inconsistently
+        // long or short. Bound the duration for animation of task translations for a more
+        // standardized feel.
+        animationDuration = Utilities.boundToRange(animationDuration,
+                MIN_TASK_DISMISS_ANIMATION_DURATION, MAX_TASK_DISMISS_ANIMATION_DURATION);
 
         mCurrentAnimation.setEndAction(this::clearState);
         mCurrentAnimation.startWithVelocity(mActivity, goingToEnd,
diff --git a/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java b/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
index 1317b4c..e0f430d 100644
--- a/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
+++ b/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
@@ -102,10 +102,10 @@
 import com.android.quickstep.util.ProtoTracer;
 import com.android.quickstep.util.RecentsOrientedState;
 import com.android.quickstep.util.RectFSpringAnim;
-import com.android.quickstep.util.StaggeredWorkspaceAnim;
 import com.android.quickstep.util.SurfaceTransactionApplier;
 import com.android.quickstep.util.SwipePipToHomeAnimator;
 import com.android.quickstep.util.TransformParams;
+import com.android.quickstep.util.WorkspaceRevealAnim;
 import com.android.quickstep.views.RecentsView;
 import com.android.quickstep.views.TaskView;
 import com.android.systemui.shared.recents.model.ThumbnailData;
@@ -201,7 +201,7 @@
             STATE_LAUNCHER_PRESENT | STATE_LAUNCHER_DRAWN | STATE_LAUNCHER_STARTED;
 
     public static final long MAX_SWIPE_DURATION = 350;
-    public static final long HOME_DURATION = StaggeredWorkspaceAnim.DURATION_MS;
+    public static final long HOME_DURATION = WorkspaceRevealAnim.DURATION_MS;
 
     public static final float MIN_PROGRESS_FOR_OVERVIEW = 0.7f;
     private static final float SWIPE_DURATION_MULTIPLIER =
@@ -1126,6 +1126,7 @@
                 windowAnim.start(mContext, velocityPxPerMs);
                 mRunningWindowAnim = RunningWindowAnim.wrap(windowAnim);
             }
+            homeAnimFactory.setSwipeVelocity(velocityPxPerMs.y);
             homeAnimFactory.playAtomicAnimation(velocityPxPerMs.y);
             mLauncherTransitionController = null;
 
diff --git a/quickstep/src/com/android/quickstep/LauncherSwipeHandlerV2.java b/quickstep/src/com/android/quickstep/LauncherSwipeHandlerV2.java
index f125063..811af7e 100644
--- a/quickstep/src/com/android/quickstep/LauncherSwipeHandlerV2.java
+++ b/quickstep/src/com/android/quickstep/LauncherSwipeHandlerV2.java
@@ -18,13 +18,14 @@
 import static com.android.launcher3.LauncherAnimUtils.SCALE_PROPERTY;
 import static com.android.launcher3.LauncherAnimUtils.VIEW_TRANSLATE_Y;
 import static com.android.launcher3.LauncherState.NORMAL;
+import static com.android.launcher3.Utilities.boundToRange;
 import static com.android.launcher3.Utilities.dpToPx;
-import static com.android.launcher3.Utilities.mapToRange;
-import static com.android.launcher3.anim.Interpolators.LINEAR;
 import static com.android.launcher3.config.FeatureFlags.PROTOTYPE_APP_CLOSE;
 import static com.android.launcher3.views.FloatingIconView.SHAPE_PROGRESS_DURATION;
 import static com.android.launcher3.views.FloatingIconView.getFloatingIconView;
 
+import static java.lang.Math.round;
+
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
 import android.animation.AnimatorSet;
@@ -52,10 +53,12 @@
 import com.android.launcher3.util.DynamicResource;
 import com.android.launcher3.util.ObjectWrapper;
 import com.android.launcher3.views.FloatingIconView;
+import com.android.launcher3.views.FloatingView;
 import com.android.launcher3.widget.LauncherAppWidgetHostView;
 import com.android.quickstep.util.AppCloseConfig;
 import com.android.quickstep.util.RectFSpringAnim;
 import com.android.quickstep.util.StaggeredWorkspaceAnim;
+import com.android.quickstep.util.WorkspaceRevealAnim;
 import com.android.quickstep.views.FloatingWidgetView;
 import com.android.quickstep.views.RecentsView;
 import com.android.quickstep.views.TaskView;
@@ -112,10 +115,6 @@
     private HomeAnimationFactory createIconHomeAnimationFactory(View workspaceView) {
         final ResourceProvider rp = DynamicResource.provider(mActivity);
         final float transY = dpToPx(rp.getFloat(R.dimen.swipe_up_trans_y_dp));
-        float dpPerSecond = dpToPx(rp.getFloat(R.dimen.swipe_up_trans_y_dp_per_s));
-        final float launcherAlphaMax =
-                rp.getFloat(R.dimen.swipe_up_launcher_alpha_max_progress);
-
         RectF iconLocation = new RectF();
         FloatingIconView floatingIconView = getFloatingIconView(mActivity, workspaceView,
                 true /* hideOriginal */, iconLocation, false /* isOpening */);
@@ -123,73 +122,25 @@
         // We want the window alpha to be 0 once this threshold is met, so that the
         // FolderIconView can be seen morphing into the icon shape.
         float windowAlphaThreshold = 1f - SHAPE_PROGRESS_DURATION;
-        return new LauncherHomeAnimationFactory() {
+
+        return new FloatingViewHomeAnimationFactory(floatingIconView) {
 
             // There is a delay in loading the icon, so we need to keep the window
             // opaque until it is ready.
             private boolean mIsFloatingIconReady = false;
 
-            private @Nullable ValueAnimator mBounceBackAnimator;
-
             @Override
             public RectF getWindowTargetRect() {
-                if (PROTOTYPE_APP_CLOSE.get()) {
-                    // We want the target rect to be at this offset position, so that all
-                    // launcher content can spring back upwards.
-                    floatingIconView.setPositionOffsetY(transY);
-                }
+                super.getWindowTargetRect();
                 return iconLocation;
             }
 
             @Override
             public void setAnimation(RectFSpringAnim anim) {
+                super.setAnimation(anim);
                 anim.addAnimatorListener(floatingIconView);
                 floatingIconView.setOnTargetChangeListener(anim::onTargetPositionChanged);
                 floatingIconView.setFastFinishRunnable(anim::end);
-                if (PROTOTYPE_APP_CLOSE.get()) {
-                    mBounceBackAnimator = bounceBackToRestingPosition();
-                    // Use a spring to put drag layer translation back to 0.
-                    anim.addAnimatorListener(new AnimatorListenerAdapter() {
-                        @Override
-                        public void onAnimationEnd(Animator animation) {
-                            floatingIconView.setPositionOffsetY(0);
-                            mBounceBackAnimator.start();
-                        }
-                    });
-
-                    Workspace workspace = mActivity.getWorkspace();
-                    workspace.setPivotToScaleWithSelf(mActivity.getHotseat());
-                }
-            }
-
-            private ValueAnimator bounceBackToRestingPosition() {
-                DragLayer dl = mActivity.getDragLayer();
-                Workspace workspace = mActivity.getWorkspace();
-                Hotseat hotseat = mActivity.getHotseat();
-
-                final float startValue = transY;
-                final float endValue = 0;
-                // Ensures the velocity is always aligned with the direction.
-                float pixelPerSecond = Math.abs(dpPerSecond) * Math.signum(endValue - transY);
-
-                ValueAnimator springTransY = new SpringAnimationBuilder(dl.getContext())
-                        .setStiffness(rp.getFloat(R.dimen.swipe_up_trans_y_stiffness))
-                        .setDampingRatio(rp.getFloat(R.dimen.swipe_up_trans_y_damping))
-                        .setMinimumVisibleChange(1f)
-                        .setStartValue(startValue)
-                        .setEndValue(endValue)
-                        .setStartVelocity(pixelPerSecond)
-                        .build(dl, VIEW_TRANSLATE_Y);
-                springTransY.addListener(new AnimatorListenerAdapter() {
-                    @Override
-                    public void onAnimationEnd(Animator animation) {
-                        dl.setTranslationY(0f);
-                        dl.setAlpha(1f);
-                        SCALE_PROPERTY.set(workspace, 1f);
-                        SCALE_PROPERTY.set(hotseat, 1f);
-                    }
-                });
-                return springTransY;
             }
 
             @Override
@@ -204,34 +155,15 @@
             @Override
             public void update(@Nullable AppCloseConfig config, RectF currentRect,
                     float progress, float radius) {
+                super.update(config, currentRect, progress, radius);
                 int fgAlpha = 255;
                 if (config != null && PROTOTYPE_APP_CLOSE.get()) {
-                    DragLayer dl = mActivity.getDragLayer();
-                    float translationY = config.getWorkspaceTransY();
-                    dl.setTranslationY(translationY);
-
-                    float alpha = mapToRange(progress, 0, launcherAlphaMax, 0, 1f, LINEAR);
-                    dl.setAlpha(Math.min(alpha, 1f));
-
-                    float scale = Math.min(1f, config.getWorkspaceScale());
-                    SCALE_PROPERTY.set(mActivity.getWorkspace(), scale);
-                    SCALE_PROPERTY.set(mActivity.getHotseat(), scale);
-                    SCALE_PROPERTY.set(mActivity.getAppsView(), scale);
-
                     progress = config.getInterpolatedProgress();
                     fgAlpha = config.getFgAlpha();
                 }
                 floatingIconView.update(1f, fgAlpha, currentRect, progress,
                         windowAlphaThreshold, radius, false);
             }
-
-            @Override
-            public void onCancel() {
-                floatingIconView.fastFinish();
-                if (mBounceBackAnimator != null) {
-                    mBounceBackAnimator.cancel();
-                }
-            }
         };
     }
 
@@ -246,10 +178,11 @@
                 hostView, backgroundLocation, windowSize,
                 mTaskViewSimulator.getCurrentCornerRadius(), isTargetTranslucent);
 
-        return new LauncherHomeAnimationFactory() {
+        return new FloatingViewHomeAnimationFactory(floatingWidgetView) {
 
             @Override
             public RectF getWindowTargetRect() {
+                super.getWindowTargetRect();
                 return backgroundLocation;
             }
 
@@ -260,6 +193,8 @@
 
             @Override
             public void setAnimation(RectFSpringAnim anim) {
+                super.setAnimation(anim);
+
                 anim.addAnimatorListener(floatingWidgetView);
                 floatingWidgetView.setOnTargetChangeListener(anim::onTargetPositionChanged);
                 floatingWidgetView.setFastFinishRunnable(anim::end);
@@ -273,15 +208,11 @@
             @Override
             public void update(@Nullable AppCloseConfig config, RectF currentRect,
                     float progress, float radius) {
+                super.update(config, currentRect, progress, radius);
                 floatingWidgetView.update(currentRect, 1 /* floatingWidgetAlpha */,
                         config != null ? config.getFgAlpha() : 1f /* foregroundAlpha */,
                         0 /* fallbackBackgroundAlpha */, 1 - progress);
             }
-
-            @Override
-            public void onCancel() {
-                floatingWidgetView.fastFinish();
-            }
         };
     }
 
@@ -323,6 +254,120 @@
                 true /* toRecents */, callback, true /* sendUserLeaveHint */);
     }
 
+    private class FloatingViewHomeAnimationFactory extends LauncherHomeAnimationFactory {
+
+        private final float mTransY;
+        private final FloatingView mFloatingView;
+        private ValueAnimator mBounceBackAnimator;
+        private final AnimatorSet mWorkspaceReveal;
+
+        FloatingViewHomeAnimationFactory(FloatingView floatingView) {
+            mFloatingView = floatingView;
+
+            ResourceProvider rp = DynamicResource.provider(mActivity);
+            mTransY = dpToPx(rp.getFloat(R.dimen.swipe_up_trans_y_dp));
+
+            mWorkspaceReveal = PROTOTYPE_APP_CLOSE.get()
+                    ? new WorkspaceRevealAnim(mActivity, true /* animateScrim */).getAnimators()
+                    : null;
+        }
+
+        @Override
+        public @NonNull RectF getWindowTargetRect() {
+            if (PROTOTYPE_APP_CLOSE.get()) {
+                // We want the target rect to be at this offset position, so that all
+                // launcher content can spring back upwards.
+                mFloatingView.setPositionOffsetY(mTransY);
+            }
+            return super.getWindowTargetRect();
+        }
+
+        @Override
+        public boolean shouldPlayAtomicWorkspaceReveal() {
+            return false;
+        }
+
+        @Override
+        public void update(@Nullable AppCloseConfig config, RectF currentRect, float progress,
+                float radius) {
+            if (config != null && PROTOTYPE_APP_CLOSE.get()) {
+                DragLayer dl = mActivity.getDragLayer();
+                float translationY = config.getWorkspaceTransY();
+                dl.setTranslationY(translationY);
+
+                long duration = mWorkspaceReveal.getDuration();
+                long playTime = boundToRange(round(duration * progress), 0, duration);
+                mWorkspaceReveal.setCurrentPlayTime(playTime);
+            }
+        }
+
+        protected void bounceBackToRestingPosition() {
+            final float startValue = mTransY;
+            final float endValue = 0;
+            // Ensures the velocity is always aligned with the direction.
+            float pixelPerSecond = Math.abs(mSwipeVelocity) * Math.signum(endValue - mTransY);
+
+            DragLayer dl = mActivity.getDragLayer();
+            Workspace workspace = mActivity.getWorkspace();
+            Hotseat hotseat = mActivity.getHotseat();
+
+            ResourceProvider rp = DynamicResource.provider(mActivity);
+            ValueAnimator springTransY = new SpringAnimationBuilder(dl.getContext())
+                    .setStiffness(rp.getFloat(R.dimen.swipe_up_trans_y_stiffness))
+                    .setDampingRatio(rp.getFloat(R.dimen.swipe_up_trans_y_damping))
+                    .setMinimumVisibleChange(1f)
+                    .setStartValue(startValue)
+                    .setEndValue(endValue)
+                    .setStartVelocity(pixelPerSecond)
+                    .build(dl, VIEW_TRANSLATE_Y);
+            springTransY.addListener(new AnimatorListenerAdapter() {
+                @Override
+                public void onAnimationEnd(Animator animation) {
+                    dl.setTranslationY(0f);
+                    dl.setAlpha(1f);
+                    SCALE_PROPERTY.set(workspace, 1f);
+                    SCALE_PROPERTY.set(hotseat, 1f);
+                }
+            });
+
+            mBounceBackAnimator = springTransY;
+            mBounceBackAnimator.start();
+        }
+
+        @Override
+        public void setAnimation(RectFSpringAnim anim) {
+            if (PROTOTYPE_APP_CLOSE.get()) {
+                // Use a spring to put drag layer translation back to 0.
+                anim.addAnimatorListener(new AnimatorListenerAdapter() {
+                    @Override
+                    public void onAnimationEnd(Animator animation) {
+                        mFloatingView.setPositionOffsetY(0);
+                        bounceBackToRestingPosition();
+                    }
+                });
+
+                // Will be updated manually below so that the two animations are in sync.
+                mWorkspaceReveal.start();
+                mWorkspaceReveal.pause();
+
+                anim.addAnimatorListener(new AnimatorListenerAdapter() {
+                    @Override
+                    public void onAnimationEnd(Animator animation) {
+                        mWorkspaceReveal.end();
+                    }
+                });
+            }
+        }
+
+        @Override
+        public void onCancel() {
+            mFloatingView.fastFinish();
+            if (mBounceBackAnimator != null) {
+                mBounceBackAnimator.cancel();
+            }
+        }
+    }
+
     private class LauncherHomeAnimationFactory extends HomeAnimationFactory {
         @NonNull
         @Override
@@ -336,8 +381,12 @@
 
         @Override
         public void playAtomicAnimation(float velocity) {
-            new StaggeredWorkspaceAnim(mActivity, velocity, true /* animateOverviewScrim */,
-                    !PROTOTYPE_APP_CLOSE.get()).start();
+            if (!PROTOTYPE_APP_CLOSE.get()) {
+                new StaggeredWorkspaceAnim(mActivity, velocity, true /* animateOverviewScrim */)
+                        .start();
+            } else if (shouldPlayAtomicWorkspaceReveal()) {
+                new WorkspaceRevealAnim(mActivity, true).start();
+            }
         }
 
         @Override
diff --git a/quickstep/src/com/android/quickstep/SwipeUpAnimationLogic.java b/quickstep/src/com/android/quickstep/SwipeUpAnimationLogic.java
index 29a00d1..b79e934 100644
--- a/quickstep/src/com/android/quickstep/SwipeUpAnimationLogic.java
+++ b/quickstep/src/com/android/quickstep/SwipeUpAnimationLogic.java
@@ -129,6 +129,7 @@
     }
 
     protected abstract class HomeAnimationFactory {
+        protected float mSwipeVelocity;
 
         public @NonNull RectF getWindowTargetRect() {
             PagedOrientationHandler orientationHandler = getOrientationHandler();
@@ -152,10 +153,18 @@
 
         public abstract @NonNull AnimatorPlaybackController createActivityAnimationToHome();
 
+        public void setSwipeVelocity(float velocity) {
+            mSwipeVelocity = velocity;
+        }
+
         public void playAtomicAnimation(float velocity) {
             // No-op
         }
 
+        public boolean shouldPlayAtomicWorkspaceReveal() {
+            return true;
+        }
+
         public void setAnimation(RectFSpringAnim anim) { }
 
         public boolean keepWindowOpaque() { return false; }
diff --git a/quickstep/src/com/android/quickstep/interaction/AllSetActivity.java b/quickstep/src/com/android/quickstep/interaction/AllSetActivity.java
index 76f43c9..6f681b3 100644
--- a/quickstep/src/com/android/quickstep/interaction/AllSetActivity.java
+++ b/quickstep/src/com/android/quickstep/interaction/AllSetActivity.java
@@ -45,8 +45,8 @@
     private static final String LOG_TAG = "AllSetActivity";
     private static final String URI_SYSTEM_NAVIGATION_SETTING =
             "#Intent;action=com.android.settings.SEARCH_RESULT_TRAMPOLINE;S.:settings:fragment_args_key=gesture_system_navigation_input_summary;S.:settings:show_fragment=com.android.settings.gestures.SystemNavigationGestureSettings;end";
-    private static final String EXTRA_ACCENT_COLOR_DARK_MODE = "accent_color_dark_mode";
-    private static final String EXTRA_ACCENT_COLOR_LIGHT_MODE = "accent_color_light_mode";
+    private static final String EXTRA_ACCENT_COLOR_DARK_MODE = "suwColorAccentDark";
+    private static final String EXTRA_ACCENT_COLOR_LIGHT_MODE = "suwColorAccentLight";
 
     private int mAccentColor;
 
diff --git a/quickstep/src/com/android/quickstep/util/OverviewToHomeAnim.java b/quickstep/src/com/android/quickstep/util/OverviewToHomeAnim.java
index 10b7662..badb41a 100644
--- a/quickstep/src/com/android/quickstep/util/OverviewToHomeAnim.java
+++ b/quickstep/src/com/android/quickstep/util/OverviewToHomeAnim.java
@@ -30,7 +30,7 @@
 
 /**
  * Runs an animation from overview to home. Currently, this animation is just a wrapper around the
- * normal state transition and may play a {@link StaggeredWorkspaceAnim} if we're starting from an
+ * normal state transition and may play a {@link WorkspaceRevealAnim} if we're starting from an
  * upward fling.
  */
 public class OverviewToHomeAnim {
@@ -51,7 +51,7 @@
 
     /**
      * Starts the animation. If velocity < 0 (i.e. upwards), also plays a
-     * {@link StaggeredWorkspaceAnim}.
+     * {@link WorkspaceRevealAnim}.
      */
     public void animateWithVelocity(float velocity) {
         StateManager<LauncherState> stateManager = mLauncher.getStateManager();
@@ -61,18 +61,18 @@
         }
         AnimatorSet anim = new AnimatorSet();
 
-        boolean playStaggeredWorkspaceAnim = velocity < 0;
-        if (playStaggeredWorkspaceAnim) {
-            StaggeredWorkspaceAnim staggeredWorkspaceAnim = new StaggeredWorkspaceAnim(
-                    mLauncher, velocity, false /* animateOverviewScrim */);
-            staggeredWorkspaceAnim.addAnimatorListener(new AnimationSuccessListener() {
+        boolean playWorkspaceRevealAnim = velocity < 0;
+        if (playWorkspaceRevealAnim) {
+            WorkspaceRevealAnim workspaceRevealAnim = new WorkspaceRevealAnim(mLauncher,
+                    false /* animateOverviewScrim */);
+            workspaceRevealAnim.addAnimatorListener(new AnimationSuccessListener() {
                 @Override
                 public void onAnimationSuccess(Animator animator) {
                     mIsHomeStaggeredAnimFinished = true;
                     maybeOverviewToHomeAnimComplete();
                 }
             });
-            anim.play(staggeredWorkspaceAnim.getAnimators());
+            anim.play(workspaceRevealAnim.getAnimators());
         } else {
             mIsHomeStaggeredAnimFinished = true;
         }
diff --git a/quickstep/src/com/android/quickstep/util/WorkspaceRevealAnim.java b/quickstep/src/com/android/quickstep/util/WorkspaceRevealAnim.java
new file mode 100644
index 0000000..50da93b
--- /dev/null
+++ b/quickstep/src/com/android/quickstep/util/WorkspaceRevealAnim.java
@@ -0,0 +1,137 @@
+/*
+ * Copyright (C) 2021 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.launcher3.LauncherAnimUtils.SCALE_PROPERTY;
+import static com.android.launcher3.LauncherState.BACKGROUND_APP;
+import static com.android.launcher3.LauncherState.NORMAL;
+import static com.android.launcher3.anim.PropertySetter.NO_ANIM_PROPERTY_SETTER;
+import static com.android.launcher3.states.StateAnimationConfig.SKIP_DEPTH_CONTROLLER;
+import static com.android.launcher3.states.StateAnimationConfig.SKIP_OVERVIEW;
+import static com.android.launcher3.states.StateAnimationConfig.SKIP_SCRIM;
+
+import android.animation.Animator;
+import android.animation.AnimatorSet;
+import android.animation.ObjectAnimator;
+import android.view.View;
+
+import com.android.launcher3.BaseQuickstepLauncher;
+import com.android.launcher3.Launcher;
+import com.android.launcher3.R;
+import com.android.launcher3.Workspace;
+import com.android.launcher3.anim.Interpolators;
+import com.android.launcher3.anim.PendingAnimation;
+import com.android.launcher3.statehandlers.DepthController;
+import com.android.launcher3.states.StateAnimationConfig;
+import com.android.launcher3.util.DynamicResource;
+import com.android.quickstep.views.RecentsView;
+import com.android.systemui.plugins.ResourceProvider;
+
+/**
+ * Creates an animation that reveals the workspace.
+ * This is used in conjunction with the swipe up to home animation.
+ */
+public class WorkspaceRevealAnim {
+
+    // Should be used for animations running alongside this WorkspaceRevealAnim.
+    public static final int DURATION_MS = 350;
+
+    private final float mScaleStart;
+    private final AnimatorSet mAnimators = new AnimatorSet();
+
+    public WorkspaceRevealAnim(Launcher launcher, boolean animateOverviewScrim) {
+        prepareToAnimate(launcher, animateOverviewScrim);
+
+        ResourceProvider rp = DynamicResource.provider(launcher);
+        mScaleStart = rp.getFloat(R.dimen.swipe_up_scale_start);
+
+        Workspace workspace = launcher.getWorkspace();
+        workspace.setPivotToScaleWithSelf(launcher.getHotseat());
+
+        // Add reveal animations.
+        addRevealAnimatorsForView(workspace);
+        addRevealAnimatorsForView(launcher.getHotseat());
+
+        // Add overview scrim animation.
+        if (animateOverviewScrim) {
+            PendingAnimation overviewScrimBuilder = new PendingAnimation(DURATION_MS);
+            launcher.getWorkspace().getStateTransitionAnimation()
+                    .setScrim(overviewScrimBuilder, NORMAL, new StateAnimationConfig());
+            mAnimators.play(overviewScrimBuilder.buildAnim());
+        }
+
+        // Add depth controller animation.
+        if (launcher instanceof BaseQuickstepLauncher) {
+            PendingAnimation depthBuilder = new PendingAnimation(DURATION_MS);
+            DepthController depth = ((BaseQuickstepLauncher) launcher).getDepthController();
+            depth.setStateWithAnimation(NORMAL, new StateAnimationConfig(), depthBuilder);
+            mAnimators.play(depthBuilder.buildAnim());
+        }
+
+        // Add sysui scrim animation.
+        mAnimators.play(launcher.getRootView().getSysUiScrim().createSysuiMultiplierAnim(0f, 1f));
+
+        mAnimators.setDuration(DURATION_MS);
+        mAnimators.setInterpolator(Interpolators.DECELERATED_EASE);
+    }
+
+    private void addRevealAnimatorsForView(View v) {
+        ObjectAnimator scale = ObjectAnimator.ofFloat(v, SCALE_PROPERTY, mScaleStart, 1f);
+        scale.setDuration(DURATION_MS);
+        scale.setInterpolator(Interpolators.DECELERATED_EASE);
+        mAnimators.play(scale);
+
+        ObjectAnimator alpha = ObjectAnimator.ofFloat(v, View.ALPHA, 0, 1f);
+        alpha.setDuration(DURATION_MS);
+        alpha.setInterpolator(Interpolators.DECELERATED_EASE);
+        mAnimators.play(alpha);
+    }
+
+    /**
+     * Setup workspace with 0 duration.
+     */
+    private void prepareToAnimate(Launcher launcher, boolean animateOverviewScrim) {
+        StateAnimationConfig config = new StateAnimationConfig();
+        config.animFlags = SKIP_OVERVIEW | SKIP_DEPTH_CONTROLLER | SKIP_SCRIM;
+        config.duration = 0;
+        // setRecentsAttachedToAppWindow() will animate recents out.
+        launcher.getStateManager().createAtomicAnimation(BACKGROUND_APP, NORMAL, config).start();
+
+        // Stop scrolling so that it doesn't interfere with the translation offscreen.
+        launcher.<RecentsView>getOverviewPanel().getScroller().forceFinished(true);
+
+        if (animateOverviewScrim) {
+            launcher.getWorkspace().getStateTransitionAnimation()
+                    .setScrim(NO_ANIM_PROPERTY_SETTER, BACKGROUND_APP, config);
+        }
+    }
+
+    public AnimatorSet getAnimators() {
+        return mAnimators;
+    }
+
+    public WorkspaceRevealAnim addAnimatorListener(Animator.AnimatorListener listener) {
+        mAnimators.addListener(listener);
+        return this;
+    }
+
+    /**
+     * Starts the animation.
+     */
+    public void start() {
+        mAnimators.start();
+    }
+}
diff --git a/quickstep/src/com/android/quickstep/views/FloatingWidgetView.java b/quickstep/src/com/android/quickstep/views/FloatingWidgetView.java
index 121e094..0012dd8 100644
--- a/quickstep/src/com/android/quickstep/views/FloatingWidgetView.java
+++ b/quickstep/src/com/android/quickstep/views/FloatingWidgetView.java
@@ -34,6 +34,7 @@
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.dragndrop.DragLayer;
+import com.android.launcher3.views.FloatingView;
 import com.android.launcher3.views.ListenerView;
 import com.android.launcher3.widget.LauncherAppWidgetHostView;
 import com.android.launcher3.widget.RoundedCornerEnforcement;
@@ -41,7 +42,7 @@
 /** A view that mimics an App Widget through a launch animation. */
 @TargetApi(Build.VERSION_CODES.S)
 public class FloatingWidgetView extends FrameLayout implements AnimatorListener,
-        OnGlobalLayoutListener {
+        OnGlobalLayoutListener, FloatingView {
     private static final Matrix sTmpMatrix = new Matrix();
 
     private final Launcher mLauncher;
@@ -59,6 +60,8 @@
     private Runnable mOnTargetChangeRunnable;
     private boolean mAppTargetIsTranslucent;
 
+    private float mIconOffsetY;
+
     public FloatingWidgetView(Context context) {
         this(context, null);
     }
@@ -129,6 +132,7 @@
     }
 
     /** Callback at the end or early exit of the animation. */
+    @Override
     public void fastFinish() {
         if (isUninitialized()) return;
         Runnable fastFinishRunnable = mFastFinishRunnable;
@@ -192,6 +196,12 @@
         positionViews();
     }
 
+    @Override
+    public void setPositionOffsetY(float y) {
+        mIconOffsetY = y;
+        onGlobalLayout();
+    }
+
     /** Sets the layout parameters of the floating view and its background view child. */
     private void positionViews() {
         LayoutParams layoutParams = (LayoutParams) getLayoutParams();
@@ -200,7 +210,7 @@
 
         // FloatingWidgetView layout is forced LTR
         mBackgroundView.setTranslationX(mBackgroundPosition.left);
-        mBackgroundView.setTranslationY(mBackgroundPosition.top);
+        mBackgroundView.setTranslationY(mBackgroundPosition.top + mIconOffsetY);
         LayoutParams backgroundParams = (LayoutParams) mBackgroundView.getLayoutParams();
         backgroundParams.leftMargin = 0;
         backgroundParams.topMargin = 0;
@@ -215,7 +225,8 @@
             sTmpMatrix.setTranslate(-mBackgroundOffset.left - mAppWidgetView.getLeft(),
                     -mBackgroundOffset.top - mAppWidgetView.getTop());
             sTmpMatrix.postScale(foregroundScale, foregroundScale);
-            sTmpMatrix.postTranslate(mBackgroundPosition.left, mBackgroundPosition.top);
+            sTmpMatrix.postTranslate(mBackgroundPosition.left, mBackgroundPosition.top
+                    + mIconOffsetY);
             mForegroundOverlayView.setMatrix(sTmpMatrix);
         }
     }
@@ -240,6 +251,7 @@
     }
 
     private void recycle() {
+        mIconOffsetY = 0;
         mEndRunnable = null;
         mFastFinishRunnable = null;
         mOnTargetChangeRunnable = null;
diff --git a/quickstep/src/com/android/quickstep/views/RecentsView.java b/quickstep/src/com/android/quickstep/views/RecentsView.java
index 7cd2a6a..4cdae27 100644
--- a/quickstep/src/com/android/quickstep/views/RecentsView.java
+++ b/quickstep/src/com/android/quickstep/views/RecentsView.java
@@ -32,11 +32,12 @@
 import static com.android.launcher3.Utilities.squaredHypot;
 import static com.android.launcher3.Utilities.squaredTouchSlop;
 import static com.android.launcher3.anim.Interpolators.ACCEL;
+import static com.android.launcher3.anim.Interpolators.ACCEL_0_5;
 import static com.android.launcher3.anim.Interpolators.ACCEL_0_75;
-import static com.android.launcher3.anim.Interpolators.ACCEL_2;
 import static com.android.launcher3.anim.Interpolators.ACCEL_DEACCEL;
 import static com.android.launcher3.anim.Interpolators.FAST_OUT_SLOW_IN;
 import static com.android.launcher3.anim.Interpolators.LINEAR;
+import static com.android.launcher3.anim.Interpolators.clampToProgress;
 import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_TASK_CLEAR_ALL;
 import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_TASK_DISMISS_SWIPE_UP;
 import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_TASK_LAUNCH_SWIPE_DOWN;
@@ -336,6 +337,11 @@
     // OverScroll constants
     private static final int OVERSCROLL_PAGE_SNAP_ANIMATION_DURATION = 270;
 
+    private static final int DISMISS_TASK_DURATION = 300;
+    private static final int ADDITION_TASK_DURATION = 200;
+    private static final float INITIAL_DISMISS_TRANSLATION_INTERPOLATION_OFFSET = 0.55f;
+    private static final float ADDITIONAL_DISMISS_TRANSLATION_INTERPOLATION_OFFSET = 0.05f;
+
     protected final RecentsOrientedState mOrientationState;
     protected final BaseActivityInterface<STATE_TYPE, ACTIVITY_TYPE> mSizeStrategy;
     protected RecentsAnimationController mRecentsAnimationController;
@@ -358,10 +364,6 @@
     private final List<OnScrollChangedListener> mScrollListeners = new ArrayList<>();
     private float mFullscreenScale;
 
-    private static final int DISMISS_TASK_DURATION = 300;
-    private static final int DISMISS_TASK_TRANSLATION_DURATION = 200;
-    private static final int ADDITIONAL_DISMISS_TASK_TRANSLATION_DURATION = 75;
-    private static final int ADDITION_TASK_DURATION = 200;
     // The threshold at which we update the SystemUI flags when animating from the task into the app
     public static final float UPDATE_SYSUI_FLAGS_THRESHOLD = 0.85f;
 
@@ -1886,21 +1888,18 @@
      * This method is used when no task dismissal has occurred.
      */
     private void updateGridProperties() {
-        updateGridProperties(null, -1);
+        updateGridProperties(false);
     }
 
     /**
      * Updates TaskView and ClearAllButton scaling and translation required to turn into grid
      * layout.
      * This method only calculates the potential position and depends on {@link #setGridProgress} to
-     * apply the actual scaling and translation. This adds task translation animations in the case
-     * of task dismissals: e.g. when dismissedTask is not null.
+     * apply the actual scaling and translation.
      *
-     * @param dismissedTask the TaskView dismissed, possibly null
-     * @param dismissedIndex the index at which the dismissedTask was prior to dismissal, if no
-     *                       dismissal occurred, this is unused
+     * @param isTaskDismissal indicates if update was called due to task dismissal
      */
-    private void updateGridProperties(TaskView dismissedTask, int dismissedIndex) {
+    private void updateGridProperties(boolean isTaskDismissal) {
         int taskCount = getTaskViewCount();
         if (taskCount == 0) {
             return;
@@ -1940,10 +1939,6 @@
         int snappedPage = getNextPage();
         TaskView snappedTaskView = getTaskViewAtByAbsoluteIndex(snappedPage);
 
-        boolean isTaskDismissal = dismissedTask != null;
-        float dismissedTaskWidth =
-                isTaskDismissal ? dismissedTask.getLayoutParams().width + mPageSpacing : 0;
-
         if (!isTaskDismissal) {
             mTopRowIdSet.clear();
         }
@@ -2039,34 +2034,13 @@
             snappedTaskGridTranslationX = gridTranslations[snappedPage - mTaskViewStartIndex];
         }
 
-        // Animate task dismissTranslationX for tasks with index >= dismissed index and in the
-        // same row as the dismissed index, or if the dismissed task was the focused task. Offset
-        // successive task dismissal durations for a staggered effect.
-        ArrayList<Animator> gridTranslationAnimators = new ArrayList<>();
-        boolean isFocusedTaskDismissed =
-                isTaskDismissal && dismissedTask.getTask().key.id == mFocusedTaskId;
         for (int i = 0; i < taskCount; i++) {
             TaskView taskView = getTaskViewAt(i);
-            if (isFocusedTaskDismissed || (i >= dismissedIndex && isSameGridRow(dismissedTask,
-                    taskView))) {
-                Animator taskDismissAnimator = ObjectAnimator.ofFloat(taskView,
-                        taskView.getPrimaryDismissTranslationProperty(),
-                        mIsRtl ? -dismissedTaskWidth : dismissedTaskWidth, 0f);
-                int additionalTranslationDuration =
-                        i >= dismissedIndex ? (ADDITIONAL_DISMISS_TASK_TRANSLATION_DURATION * (
-                                (i - dismissedIndex) / 2)) : 0;
-                taskDismissAnimator.setDuration(
-                        DISMISS_TASK_TRANSLATION_DURATION + additionalTranslationDuration);
-                gridTranslationAnimators.add(taskDismissAnimator);
-            }
             taskView.setGridTranslationX(gridTranslations[i] - snappedTaskGridTranslationX);
             taskView.getPrimaryNonFullscreenTranslationProperty().set(taskView,
                     snappedTaskFullscreenScrollAdjustment);
             taskView.getSecondaryNonFullscreenTranslationProperty().set(taskView, 0f);
         }
-        AnimatorSet gridTranslationAnimatorSet = new AnimatorSet();
-        gridTranslationAnimatorSet.playTogether(gridTranslationAnimators);
-        gridTranslationAnimatorSet.start();
 
         // Use the accumulated translation of the row containing the last task.
         float clearAllAccumulatedTranslation = topSet.contains(taskCount - 1)
@@ -2210,7 +2184,7 @@
             PendingAnimation anim) {
         // Use setFloat instead of setViewAlpha as we want to keep the view visible even when it's
         // alpha is set to 0 so that it can be recycled in the view pool properly
-        anim.setFloat(taskView, VIEW_ALPHA, 0, ACCEL_2);
+        anim.setFloat(taskView, VIEW_ALPHA, 0, clampToProgress(ACCEL, 0, 0.5f));
         SplitSelectStateController splitController = mSplitPlaceholderView.getSplitController();
 
         ResourceProvider rp = DynamicResource.provider(mActivity);
@@ -2246,8 +2220,10 @@
                     throw new IllegalStateException("Invalid split task translation: " + dir);
             }
         }
+        // Double translation distance so dismissal drag is the full height, as we only animate
+        // the drag for the first half of the progress.
         anim.add(ObjectAnimator.ofFloat(taskView, dismissingTaskViewTranslate,
-                positiveNegativeFactor * translateDistance).setDuration(duration), LINEAR, sp);
+                positiveNegativeFactor * translateDistance * 2).setDuration(duration), LINEAR, sp);
 
         if (LIVE_TILE.get() && taskView.isRunningTask()) {
             anim.addOnFrameCallback(() -> {
@@ -2283,6 +2259,11 @@
         }
         int draggedIndex = indexOfChild(taskView);
 
+        boolean isFocusedTaskDismissed = taskView.getTask().key.id == mFocusedTaskId;
+        if (isFocusedTaskDismissed && showAsGrid()) {
+            anim.setFloat(mActionsView, VIEW_ALPHA, 0, clampToProgress(ACCEL_0_5, 0, 0.5f));
+        }
+        float dismissedTaskWidth = taskView.getLayoutParams().width + mPageSpacing;
         boolean needsCurveUpdates = false;
         for (int i = 0; i < count; i++) {
             View child = getChildAt(i);
@@ -2291,7 +2272,7 @@
                     addDismissedTaskAnimations(taskView, duration, anim);
                 }
             } else if (!showAsGrid()) {
-                // For grid layout, don't animate other tasks when dismissing in grid for now.
+                // Compute scroll offsets from task dismissal for animation.
                 // If we just take newScroll - oldScroll, everything to the right of dragged task
                 // translates to the left. We need to offset this in some cases:
                 // - In RTL, add page offset to all pages, since we want pages to move to the right
@@ -2318,15 +2299,31 @@
                             ? ((TaskView) child).getPrimaryDismissTranslationProperty()
                             : mOrientationHandler.getPrimaryViewTranslate();
 
-                    ResourceProvider rp = DynamicResource.provider(mActivity);
-                    SpringProperty sp = new SpringProperty(SpringProperty.FLAG_CAN_SPRING_ON_END)
-                            .setDampingRatio(
-                                    rp.getFloat(R.dimen.dismiss_task_trans_x_damping_ratio))
-                            .setStiffness(rp.getFloat(R.dimen.dismiss_task_trans_x_stiffness));
-                    anim.add(ObjectAnimator.ofFloat(child, translationProperty, scrollDiff)
-                            .setDuration(duration), ACCEL, sp);
+                    float additionalDismissDuration =
+                            ADDITIONAL_DISMISS_TRANSLATION_INTERPOLATION_OFFSET * Math.abs(
+                                    i - draggedIndex);
+                    anim.setFloat(child, translationProperty, scrollDiff, clampToProgress(LINEAR,
+                            Utilities.boundToRange(INITIAL_DISMISS_TRANSLATION_INTERPOLATION_OFFSET
+                                    + additionalDismissDuration, 0f, 1f), 1));
                     needsCurveUpdates = true;
                 }
+            } else if (child instanceof TaskView) {
+                // Animate task with index >= dismissed index and in the same row as the
+                // dismissed index, or if the dismissed task was the focused task. Offset
+                // successive task dismissal durations for a staggered effect.
+                if (isFocusedTaskDismissed || (i >= draggedIndex && isSameGridRow((TaskView) child,
+                        taskView))) {
+                    FloatProperty translationProperty =
+                            ((TaskView) child).getPrimaryDismissTranslationProperty();
+                    float additionalDismissDuration =
+                            ADDITIONAL_DISMISS_TRANSLATION_INTERPOLATION_OFFSET * Math.abs(
+                                    i - draggedIndex);
+                    anim.setFloat(child, translationProperty,
+                            !mIsRtl ? -dismissedTaskWidth : dismissedTaskWidth,
+                            clampToProgress(LINEAR, Utilities.boundToRange(
+                                    INITIAL_DISMISS_TRANSLATION_INTERPOLATION_OFFSET
+                                            + additionalDismissDuration, 0f, 1f), 1));
+                }
             }
         }
 
@@ -2364,6 +2361,10 @@
                         }
                     }
 
+                    // Reset task translations as they may have updated via animations in
+                    // createTaskDismissAnimation
+                    resetTaskVisuals();
+
                     int pageToSnapTo = mCurrentPage;
                     // Snap to start if focused task was dismissed, as after quick switch it could
                     // be at any page but the focused task always displays at the start.
@@ -2381,7 +2382,7 @@
                     } else {
                         snapToPageImmediately(pageToSnapTo);
                         // Grid got messed up, reapply.
-                        updateGridProperties(taskView, draggedIndex - mTaskViewStartIndex);
+                        updateGridProperties(true);
                         if (showAsGrid() && getFocusedTaskView() == null
                                 && mActionsView.getVisibilityAlpha().getValue() == 1) {
                             animateActionsViewOut();
@@ -2391,9 +2392,6 @@
                     // immediately available.
                     onLayout(false /*  changed */, getLeft(), getTop(), getRight(), getBottom());
                 }
-                if (!showAsGrid()) {
-                    resetTaskVisuals();
-                }
                 onDismissAnimationEnds();
                 mPendingAnimation = null;
             }
@@ -2617,6 +2615,16 @@
     @Override
     protected void onConfigurationChanged(Configuration newConfig) {
         super.onConfigurationChanged(newConfig);
+        if (LIVE_TILE.get()) {
+            switchToScreenshot(
+                    () -> finishRecentsAnimation(true /* toRecents */,
+                            this::onConfigurationChangedInternal));
+        } else {
+            onConfigurationChangedInternal();
+        }
+    }
+
+    private void onConfigurationChangedInternal() {
         final int rotation = mActivity.getDisplay().getRotation();
         if (mOrientationState.setRecentsRotation(rotation)) {
             updateOrientationHandler();
@@ -3711,7 +3719,8 @@
         return mColorTint;
     }
 
-    private boolean showAsGrid() {
+    /** Returns {@code true} if the overview tasks are displayed as a grid. */
+    public boolean showAsGrid() {
         return mOverviewGridEnabled || (mCurrentGestureEndTarget != null
                 && mSizeStrategy.stateFromGestureEndTarget(
                 mCurrentGestureEndTarget).displayOverviewTasksAsGrid(mActivity.getDeviceProfile()));
diff --git a/quickstep/src/com/android/quickstep/views/TaskMenuView.java b/quickstep/src/com/android/quickstep/views/TaskMenuView.java
index 32cd367..bff1013 100644
--- a/quickstep/src/com/android/quickstep/views/TaskMenuView.java
+++ b/quickstep/src/com/android/quickstep/views/TaskMenuView.java
@@ -215,6 +215,7 @@
                 RecentsView recentsView = mTaskView.getRecentsView();
                 recentsView.switchToScreenshot(null,
                         () -> recentsView.finishRecentsAnimation(true /* toRecents */,
+                                false /* shouldPip */,
                                 () -> menuOption.onClick(view)));
             } else {
                 menuOption.onClick(view);
diff --git a/res/drawable/personal_work_tabs_ripple.xml b/res/drawable/personal_work_tabs_ripple.xml
new file mode 100644
index 0000000..2e57b80
--- /dev/null
+++ b/res/drawable/personal_work_tabs_ripple.xml
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2021 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.
+-->
+<ripple xmlns:android="http://schemas.android.com/apk/res/android"
+    android:color="?android:attr/colorControlHighlight">
+    <shape android:shape="rectangle">
+        <solid android:color="@android:color/transparent" />
+        <corners android:radius="@dimen/all_apps_header_pill_corner_radius" />
+    </shape>
+</ripple>
\ No newline at end of file
diff --git a/res/layout/all_apps_personal_work_tabs.xml b/res/layout/all_apps_personal_work_tabs.xml
index 750e101..31fa5cf 100644
--- a/res/layout/all_apps_personal_work_tabs.xml
+++ b/res/layout/all_apps_personal_work_tabs.xml
@@ -32,7 +32,7 @@
         android:layout_width="0dp"
         android:layout_height="match_parent"
         android:layout_weight="1"
-        android:background="?android:attr/selectableItemBackground"
+        android:background="@drawable/personal_work_tabs_ripple"
         android:text="@string/all_apps_personal_tab"
         android:textColor="@color/all_apps_tab_text"
         android:textSize="16sp" />
@@ -42,7 +42,7 @@
         android:layout_width="0dp"
         android:layout_height="match_parent"
         android:layout_weight="1"
-        android:background="?android:attr/selectableItemBackground"
+        android:background="@drawable/personal_work_tabs_ripple"
         android:text="@string/all_apps_work_tab"
         android:textColor="@color/all_apps_tab_text"
         android:textSize="16sp" />
diff --git a/res/layout/widgets_personal_work_tabs.xml b/res/layout/widgets_personal_work_tabs.xml
index f835b52..72d83e8 100644
--- a/res/layout/widgets_personal_work_tabs.xml
+++ b/res/layout/widgets_personal_work_tabs.xml
@@ -22,6 +22,7 @@
     android:layout_height="@dimen/all_apps_header_pill_height"
     android:layout_marginHorizontal="16dp"
     android:orientation="horizontal"
+    android:background="@drawable/all_apps_tabs_background"
     android:elevation="2dp"
     style="@style/TextHeadline">
 
@@ -30,7 +31,7 @@
         android:layout_width="0dp"
         android:layout_height="match_parent"
         android:layout_weight="1"
-        android:background="?android:attr/selectableItemBackground"
+        android:background="@drawable/personal_work_tabs_ripple"
         android:text="@string/widgets_full_sheet_personal_tab"
         android:textColor="@color/all_apps_tab_text"
         android:textSize="14sp" />
@@ -40,7 +41,7 @@
         android:layout_width="0dp"
         android:layout_height="match_parent"
         android:layout_weight="1"
-        android:background="?android:attr/selectableItemBackground"
+        android:background="@drawable/personal_work_tabs_ripple"
         android:text="@string/widgets_full_sheet_work_tab"
         android:textColor="@color/all_apps_tab_text"
         android:textSize="14sp" />
diff --git a/res/values/config.xml b/res/values/config.xml
index 102d4e0..77c7e98 100644
--- a/res/values/config.xml
+++ b/res/values/config.xml
@@ -126,7 +126,7 @@
 
     <item name="swipe_up_rect_xy_fling_friction" type="dimen" format="float">1.5</item>
 
-    <item name="swipe_up_scale_start"  type="dimen" format="float">0.98</item>
+    <item name="swipe_up_scale_start"  type="dimen" format="float">0.88</item>
     <item name="swipe_up_duration"  type="dimen" format="float">400</item>
 
     <item name="swipe_up_trans_y_dp"  type="dimen" format="float">4.5</item>
diff --git a/res/values/id.xml b/res/values/id.xml
index 39c49bd..1bd40ce 100644
--- a/res/values/id.xml
+++ b/res/values/id.xml
@@ -15,6 +15,7 @@
     limitations under the License.
 -->
 <resources>
+    <item type="id" name="apps_list_view_work" />
     <item type="id" name="view_type_widgets_list" />
     <item type="id" name="view_type_widgets_header" />
     <item type="id" name="view_type_widgets_search_header" />
diff --git a/src/com/android/launcher3/allapps/AllAppsContainerView.java b/src/com/android/launcher3/allapps/AllAppsContainerView.java
index 3fdcea5..1620d08 100644
--- a/src/com/android/launcher3/allapps/AllAppsContainerView.java
+++ b/src/com/android/launcher3/allapps/AllAppsContainerView.java
@@ -30,11 +30,13 @@
 import android.graphics.Paint;
 import android.graphics.Point;
 import android.graphics.Rect;
+import android.os.Parcelable;
 import android.os.Process;
 import android.text.Selection;
 import android.text.SpannableStringBuilder;
 import android.util.AttributeSet;
 import android.util.Log;
+import android.util.SparseArray;
 import android.view.KeyEvent;
 import android.view.LayoutInflater;
 import android.view.MotionEvent;
@@ -133,6 +135,7 @@
     private int mHeaderColor;
 
 
+
     public AllAppsContainerView(Context context) {
         this(context, null);
     }
@@ -169,6 +172,19 @@
         mAllAppsStore.addUpdateListener(this::onAppsUpdated);
     }
 
+    @Override
+    protected void dispatchRestoreInstanceState(SparseArray<Parcelable> sparseArray) {
+        try {
+            // Many slice view id is not properly assigned, and hence throws null
+            // pointer exception in the underneath method. Catching the exception
+            // simply doesn't restore these slice views. This doesn't have any
+            // user visible effect because because we query them again.
+            super.dispatchRestoreInstanceState(sparseArray);
+        } catch (Exception e) {
+            Log.e("AllAppsContainerView", "restoreInstanceState viewId = 0", e);
+        }
+    }
+
     /**
      * Sets the long click listener for icons
      */
@@ -436,6 +452,7 @@
             setupWorkToggle();
             mAH[AdapterHolder.MAIN].setup(mViewPager.getChildAt(0), mPersonalMatcher);
             mAH[AdapterHolder.WORK].setup(mViewPager.getChildAt(1), mWorkMatcher);
+            mAH[AdapterHolder.WORK].recyclerView.setId(R.id.apps_list_view_work);
             mViewPager.getPageIndicator().setActiveMarker(AdapterHolder.MAIN);
             findViewById(R.id.tab_personal)
                     .setOnClickListener((View view) -> {
diff --git a/src/com/android/launcher3/anim/Interpolators.java b/src/com/android/launcher3/anim/Interpolators.java
index 9d73bba..1e7b224 100644
--- a/src/com/android/launcher3/anim/Interpolators.java
+++ b/src/com/android/launcher3/anim/Interpolators.java
@@ -35,6 +35,7 @@
     public static final Interpolator LINEAR = new LinearInterpolator();
 
     public static final Interpolator ACCEL = new AccelerateInterpolator();
+    public static final Interpolator ACCEL_0_5 = new AccelerateInterpolator(0.5f);
     public static final Interpolator ACCEL_0_75 = new AccelerateInterpolator(0.75f);
     public static final Interpolator ACCEL_1_5 = new AccelerateInterpolator(1.5f);
     public static final Interpolator ACCEL_2 = new AccelerateInterpolator(2);
@@ -149,11 +150,15 @@
      */
     public static Interpolator clampToProgress(Interpolator interpolator, float lowerBound,
             float upperBound) {
-        if (upperBound <= lowerBound) {
-            throw new IllegalArgumentException(String.format(
-                    "lowerBound (%f) must be less than upperBound (%f)", lowerBound, upperBound));
+        if (upperBound < lowerBound) {
+            throw new IllegalArgumentException(
+                    String.format("upperBound (%f) must be greater than lowerBound (%f)",
+                            upperBound, lowerBound));
         }
         return t -> {
+            if (t == lowerBound && t == upperBound) {
+                return t == 0f ? 0 : 1;
+            }
             if (t < lowerBound) {
                 return 0;
             }
diff --git a/src/com/android/launcher3/views/FloatingIconView.java b/src/com/android/launcher3/views/FloatingIconView.java
index 81581fa..f973c2b 100644
--- a/src/com/android/launcher3/views/FloatingIconView.java
+++ b/src/com/android/launcher3/views/FloatingIconView.java
@@ -63,7 +63,7 @@
  */
 @TargetApi(Build.VERSION_CODES.Q)
 public class FloatingIconView extends FrameLayout implements
-        Animator.AnimatorListener, OnGlobalLayoutListener {
+        Animator.AnimatorListener, OnGlobalLayoutListener, FloatingView {
 
     private static final String TAG = FloatingIconView.class.getSimpleName();
 
@@ -443,6 +443,7 @@
         mFastFinishRunnable = runnable;
     }
 
+    @Override
     public void fastFinish() {
         if (mFastFinishRunnable != null) {
             mFastFinishRunnable.run();
@@ -475,9 +476,7 @@
     @Override
     public void onAnimationRepeat(Animator animator) {}
 
-    /**
-     * Offsets and updates the position of this view by {@param y}.
-     */
+    @Override
     public void setPositionOffsetY(float y) {
         mIconOffsetY = y;
         onGlobalLayout();
diff --git a/src/com/android/launcher3/views/FloatingView.java b/src/com/android/launcher3/views/FloatingView.java
new file mode 100644
index 0000000..ea4fd15
--- /dev/null
+++ b/src/com/android/launcher3/views/FloatingView.java
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.launcher3.views;
+
+/**
+ * Shared interface for floating views.
+ */
+public interface FloatingView {
+
+    /**
+     * Offsets and updates the position of this view by {@param y}.
+     */
+    void setPositionOffsetY(float y);
+
+    /**
+     * Fast finish the animation.
+     */
+    void fastFinish();
+}