[WMS][Bugfix]Fix screenshot sharing failure after the recent task is opened.

When open the recent task after taking the screenshot,the reorderMode will be changed to start a new activity of the screenshot.

Change-Id: I6f3192d67e5db3aa8c861046483b1851c1766f6c

Author: ben Wang

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

@@ -1676,6 +1676,12 @@ private int startActivityUnchecked(final ActivityRecord r, ActivityRecord source
                         intentGrants);
             } finally {
                 Trace.traceEnd(Trace.TRACE_TAG_WINDOW_MANAGER);
+
+                if (ActivityManager.isStartResultSuccessful(result) &&
+                        mService.mWindowManager.getRecentsAnimationController() != null) {
+                        mService.mWindowManager.getRecentsAnimationController().notifyActivityStarting();
+                }
+
                 startedActivityRootTask = handleStartResult(r, options, result, newTransition,
                         remoteTransition);
             }

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

@@ -290,6 +290,12 @@ private void finishAnimation(@RecentsAnimationController.ReorderMode int reorder
                     mWindowManager.getRecentsAnimationController();
             if (controller == null) return;
 
+            if (controller.isActivityStarting()) {
+                //Fix screenshot sharing failure after the recent task is opened.
+                Slog.i(TAG, "Change reorderMode because a activity is starting");
+                reorderMode = REORDER_MOVE_TO_ORIGINAL_POSITION;
+            }
+
             // Just to be sure end the launch hint in case the target activity was never launched.
             // However, if we're keeping the activity and making it visible, we can leave it on.
             if (reorderMode != REORDER_KEEP_IN_PLACE) {
@@ -302,12 +308,14 @@ private void finishAnimation(@RecentsAnimationController.ReorderMode int reorder
                 mService.stopAppSwitches();
             }
 
+            final int changedReorderMode = reorderMode;
+
             mWindowManager.inSurfaceTransaction(() -> {
                 Trace.traceBegin(TRACE_TAG_WINDOW_MANAGER,
                         "RecentsAnimation#onAnimationFinished_inSurfaceTransaction");
                 mService.deferWindowLayout();
                 try {
-                    mWindowManager.cleanupRecentsAnimation(reorderMode);
+                    mWindowManager.cleanupRecentsAnimation(changedReorderMode);
 
                     final Task targetRootTask = mDefaultTaskDisplayArea.getRootTask(
                             WINDOWING_MODE_UNDEFINED, mTargetActivityType);
@@ -327,7 +335,7 @@ private void finishAnimation(@RecentsAnimationController.ReorderMode int reorder
                     // Restore the launched-behind state
                     targetActivity.mLaunchTaskBehind = false;
 
-                    if (reorderMode == REORDER_MOVE_TO_TOP) {
+                    if (changedReorderMode == REORDER_MOVE_TO_TOP) {
                         // Bring the target root task to the front
                         mTaskSupervisor.mNoAnimActivities.add(targetActivity);
 
@@ -351,7 +359,7 @@ private void finishAnimation(@RecentsAnimationController.ReorderMode int reorder
                                         targetRootTask, topRootTask);
                             }
                         }
-                    } else if (reorderMode == REORDER_MOVE_TO_ORIGINAL_POSITION){
+                    } else if (changedReorderMode == REORDER_MOVE_TO_ORIGINAL_POSITION){
                         // Restore the target root task to its previous position
                         final TaskDisplayArea taskDisplayArea = targetActivity.getDisplayArea();
                         taskDisplayArea.moveRootTaskBehindRootTask(targetRootTask,

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

@@ -155,6 +155,8 @@ public class RecentsAnimationController implements DeathRecipient {
 
     private final ArrayList<RemoteAnimationTarget> mPendingTaskAppears = new ArrayList<>();
 
+    private boolean mIsActivityStarting = false;
+
     /**
      * An app transition listener to cancel the recents animation only after the app transition
      * starts or is canceled.
@@ -368,6 +370,14 @@ public void animateNavigationBarToApp(long duration) {
         }
     };
 
+    void notifyActivityStarting() {
+        mIsActivityStarting = true;
+    }
+
+    boolean isActivityStarting() {
+        return mIsActivityStarting;
+    }
+
     /**
      * @param remoteAnimationRunner The remote runner which should be notified when the animation is
      *                              ready to start or has been canceled