Merge pull request #2588 from npv12/12.1-dev

Fix npe, gesture stuck issue

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

@@ -427,12 +427,10 @@ public abstract class AbsSwipeUpHandler<T extends StatefulActivity<S>,
                 HashMap<Integer, ThumbnailData> snapshots =
                         mGestureState.consumeRecentsAnimationCanceledSnapshot();
                 if (snapshots != null) {
-                    mRecentsView.switchToScreenshot(snapshots, () -> {
-                        if (mRecentsAnimationController != null) {
-                            mRecentsAnimationController.cleanupScreenshot();
-                        }
-                    });
                     mRecentsView.onRecentsAnimationComplete();
+                    if (mRecentsAnimationController != null) {
+                        mRecentsAnimationController.cleanupScreenshot();
+                    }
                 }
             });
 

src/com/android/launcher3/Workspace.java

@@ -605,7 +605,10 @@ public class Workspace extends PagedView<WorkspacePageIndicator>
 
         // Recycle the QSB widget
         if (mQsb != null) {
-            ((ViewGroup) mQsb.getParent()).removeView(mQsb);
+            ViewGroup viewGroup = (ViewGroup) mQsb.getParent();
+            if (viewGroup != null) {
+                viewGroup.removeView(mQsb);
+            }
         }
 
         // Remove the pages and clear the screen models