commit ed2f309652cfbac2844dc49518c1efa5591d8322
author Shen Lin <shhenlin@gmail.com> Tue Dec 20 11:29:51 2022 +0800
committer Shen Lin <shhenlin@gmail.com> Tue Dec 20 11:42:27 2022 +0800
tree 8e77bcc7b5b91fc7b7e78cb0858133cf23d11046
parent e3c1707e3617a01820380fff3238e91955443265

Fix NPE in FallbackSwipeHandler when getRunningTask() returns null

mGestureState.getRunningTask() is probably null in this situation, we
need to add a null check here refer to the usage in TaskAnimationManager.

Bug: 263041039
Test: manual
Change-Id: I7707bf204190ff506f40640ff764f07cb98aab68

quickstep/src/com/android/quickstep/FallbackSwipeHandler.java

diff --git a/quickstep/src/com/android/quickstep/FallbackSwipeHandler.java b/quickstep/src/com/android/quickstep/FallbackSwipeHandler.java
index 99f7bdd..3b11228 100644
--- a/quickstep/src/com/android/quickstep/FallbackSwipeHandler.java
+++ b/quickstep/src/com/android/quickstep/FallbackSwipeHandler.java
@@ -107,7 +107,8 @@
         super(context, deviceState, taskAnimationManager, gestureState, touchTimeMs,
                 continuingLastGesture, inputConsumer);
 
-        mRunningOverHome = mGestureState.getRunningTask().isHomeTask();
+        mRunningOverHome = mGestureState.getRunningTask() != null
+                && mGestureState.getRunningTask().isHomeTask();
         if (mRunningOverHome) {
             runActionOnRemoteHandles(remoteTargetHandle ->
                     remoteTargetHandle.getTransformParams().setHomeBuilderProxy(