Merge "Fix flicker while resizing split screen" into tm-dev

services/core/java/com/android/server/wm/ActivityRecord.java

@@ -5524,8 +5524,8 @@ final class ActivityRecord extends WindowToken implements WindowManagerService.A
     }
 
     /** @return {@code true} if this activity should be made visible. */
-    private boolean shouldBeVisible(boolean behindFullscreenActivity, boolean ignoringKeyguard) {
+    private boolean shouldBeVisible(boolean behindOccludedContainer, boolean ignoringKeyguard) {
-        updateVisibilityIgnoringKeyguard(behindFullscreenActivity);
+        updateVisibilityIgnoringKeyguard(behindOccludedContainer);
 
         if (ignoringKeyguard) {
             return visibleIgnoringKeyguard;
@@ -5583,20 +5583,20 @@ final class ActivityRecord extends WindowToken implements WindowManagerService.A
         return differentUidOverlayActivity != null;
     }
 
-    void updateVisibilityIgnoringKeyguard(boolean behindFullscreenActivity) {
+    void updateVisibilityIgnoringKeyguard(boolean behindOccludedContainer) {
-        visibleIgnoringKeyguard = (!behindFullscreenActivity || mLaunchTaskBehind)
+        visibleIgnoringKeyguard = (!behindOccludedContainer || mLaunchTaskBehind)
                 && showToCurrentUser();
     }
 
     boolean shouldBeVisible() {
-        final Task rootTask = getRootTask();
+        final Task task = getTask();
-        if (rootTask == null) {
+        if (task == null) {
             return false;
         }
 
-        final boolean behindFullscreenActivity = !rootTask.shouldBeVisible(null /* starting */)
+        final boolean behindOccludedContainer = !task.shouldBeVisible(null /* starting */)
-                || rootTask.getOccludingActivityAbove(this) != null;
+                || task.getOccludingActivityAbove(this) != null;
-        return shouldBeVisible(behindFullscreenActivity, false /* ignoringKeyguard */);
+        return shouldBeVisible(behindOccludedContainer, false /* ignoringKeyguard */);
     }
 
     void makeVisibleIfNeeded(ActivityRecord starting, boolean reportToClient) {

services/core/java/com/android/server/wm/Task.java

@@ -5053,22 +5053,10 @@ class Task extends TaskFragment {
             positionChildAtTop(rTask);
         }
         Task task = null;
-        if (!newTask && isOrhasTask) {
+        if (!newTask && isOrhasTask && !r.shouldBeVisible()) {
-            // Starting activity cannot be occluding activity, otherwise starting window could be
-            // remove immediately without transferring to starting activity.
-            final ActivityRecord occludingActivity = getOccludingActivityAbove(r);
-            if (occludingActivity != null) {
-                // Here it is!  Now, if this is not yet visible (occluded by another task) to the
-                // user, then just add it without starting; it will get started when the user
-                // navigates back to it.
-                ProtoLog.i(WM_DEBUG_ADD_REMOVE, "Adding activity %s to task %s "
-                                + "callers: %s", r, task,
-                        new RuntimeException("here").fillInStackTrace());
-                rTask.positionChildAtTop(r);
             ActivityOptions.abort(options);
             return;
         }
-        }
 
         // Place a new activity at top of root task, so it is next to interact with the user.
 
@@ -5697,9 +5685,7 @@ class Task extends TaskFragment {
             return false;
         }
 
-        // See if there is an occluding activity on-top of this one.
+        if (!r.shouldBeVisible()) return false;
-        final ActivityRecord occludingActivity = getOccludingActivityAbove(r);
-        if (occludingActivity != null) return false;
 
         if (r.finishing) Slog.e(TAG, "willActivityBeVisible: Returning false,"
                 + " would have returned true for r=" + r);