Remove invisible home task view as soon as gesture to Recents ends

Fixes: 168288052
Change-Id: I929d021b26dad8b2f9b1f6a659522054bbf3ec28

quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java

@@ -434,9 +434,13 @@ public abstract class AbsSwipeUpHandler<T extends StatefulActivity<?>, Q extends
                 mOnDeferredActivityLaunch);
 
         mGestureState.runOnceAtState(STATE_END_TARGET_SET,
-                () -> mDeviceState.getRotationTouchHelper().
-                        onEndTargetCalculated(mGestureState.getEndTarget(),
-                                mActivityInterface));
+                () -> {
+                    mDeviceState.getRotationTouchHelper()
+                            .onEndTargetCalculated(mGestureState.getEndTarget(),
+                                    mActivityInterface);
+
+                    mRecentsView.onGestureEndTargetCalculated(mGestureState.getEndTarget());
+                });
 
         notifyGestureStartedAsync();
     }

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

@@ -15,6 +15,7 @@
  */
 package com.android.quickstep.fallback;
 
+import static com.android.quickstep.GestureState.GestureEndTarget.RECENTS;
 import static com.android.quickstep.fallback.RecentsState.DEFAULT;
 import static com.android.quickstep.fallback.RecentsState.MODAL_TASK;
 
@@ -27,6 +28,7 @@ import android.util.AttributeSet;
 import com.android.launcher3.anim.PendingAnimation;
 import com.android.launcher3.statemanager.StateManager.StateListener;
 import com.android.quickstep.FallbackActivityInterface;
+import com.android.quickstep.GestureState;
 import com.android.quickstep.RecentsActivity;
 import com.android.quickstep.views.OverviewActionsView;
 import com.android.quickstep.views.RecentsView;
@@ -74,14 +76,14 @@ public class FallbackRecentsView extends RecentsView<RecentsActivity>
     }
 
     /**
-     * When the gesture ends and recents view become interactive, we also remove the temporary
+     * When the gesture ends and we're going to recents view, we also remove the temporary
      * invisible tile added for the home task. This also pushes the remaining tiles back
      * to the center.
      */
     @Override
-    public void onGestureAnimationEnd() {
-        super.onGestureAnimationEnd();
-        if (mHomeTaskInfo != null) {
+    public void onGestureEndTargetCalculated(GestureState.GestureEndTarget endTarget) {
+        super.onGestureEndTargetCalculated(endTarget);
+        if (mHomeTaskInfo != null && endTarget == RECENTS) {
             TaskView tv = getTaskView(mHomeTaskInfo.taskId);
             if (tv != null) {
                 PendingAnimation pa = createTaskDismissAnimation(tv, true, false, 150);

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

@@ -118,6 +118,7 @@ import com.android.launcher3.util.ResourceBasedOverride.Overrides;
 import com.android.launcher3.util.Themes;
 import com.android.launcher3.util.ViewPool;
 import com.android.quickstep.BaseActivityInterface;
+import com.android.quickstep.GestureState;
 import com.android.quickstep.RecentsAnimationController;
 import com.android.quickstep.RecentsAnimationTargets;
 import com.android.quickstep.RecentsModel;
@@ -1183,7 +1184,14 @@ public abstract class RecentsView<T extends StatefulActivity> extends PagedView
     }
 
     /**
-     * Called when a gesture from an app has finished.
+     * Called when a gesture from an app has finished, and an end target has been determined.
+     */
+    public void onGestureEndTargetCalculated(GestureState.GestureEndTarget endTarget) {
+
+    }
+
+    /**
+     * Called when a gesture from an app has finished, and the animation to the target has ended.
      */
     public void onGestureAnimationEnd() {
         if (mOrientationState.setGestureActive(false)) {