commit ff02cd54d44ff5767264fca22a3926c9cb135f57
author Winson Chung <winsonc@google.com> Wed Feb 14 09:14:12 2018 -0800
committer Winson Chung <winsonc@google.com> Wed Feb 14 09:16:26 2018 -0800
tree d26a9047fb70e8bb6e74da443fab61c55ccb5bf4
parent f6c65d7e54f34c4b38160d07f91be5ab13c9c242

Skip updating displacement if handler is already invalidated.

Bug: 73338391
Change-Id: I091e8a682f95631e15b3f2cbe3e281c4f18003b9

quickstep/src/com/android/quickstep/WindowTransformSwipeHandler.java

diff --git a/quickstep/src/com/android/quickstep/WindowTransformSwipeHandler.java b/quickstep/src/com/android/quickstep/WindowTransformSwipeHandler.java
index 9bcbf34..91f4453 100644
--- a/quickstep/src/com/android/quickstep/WindowTransformSwipeHandler.java
+++ b/quickstep/src/com/android/quickstep/WindowTransformSwipeHandler.java
@@ -461,6 +461,9 @@
 
         if (mLauncherTransitionController != null) {
             Runnable runOnUi = () -> {
+                if (mLauncherTransitionController == null) {
+                    return;
+                }
                 mLauncherTransitionController.setPlayFraction(shift);
 
                 // Make sure the window follows the first task if it moves, e.g. during quick scrub.