From de6819a453180bd7fd4ec63d21d09b36b9b7acc9 Mon Sep 17 00:00:00 2001
From: Alex Chau <alexchau@google.com>
Date: Tue, 20 Jul 2021 11:07:50 +0100
Subject: [PATCH] Check if running task is null in onPrepareGestureEndAnimation

- The crash happen when swiping to overview from home without any task in recents
- A simple null check fixes the issue

Fix: 194166137
Test: FallbackRecentsTest#goToOverviewFromHome
Change-Id: I9344a96a4a78fcfc88d2ad53e44ecd43b23114d5
---
 quickstep/src/com/android/quickstep/views/RecentsView.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/quickstep/src/com/android/quickstep/views/RecentsView.java b/quickstep/src/com/android/quickstep/views/RecentsView.java
index b8a38adeb6..e128942dc4 100644
--- a/quickstep/src/com/android/quickstep/views/RecentsView.java
+++ b/quickstep/src/com/android/quickstep/views/RecentsView.java
@@ -1792,7 +1792,7 @@ public abstract class RecentsView<ACTIVITY_TYPE extends StatefulActivity<STATE_T
                 .displayOverviewTasksAsGrid(mActivity.getDeviceProfile())) {
             TaskView runningTaskView = getRunningTaskView();
             float runningTaskPrimaryGridTranslation = 0;
-            if (indexOfChild(runningTaskView) != getNextPage()) {
+            if (runningTaskView != null && indexOfChild(runningTaskView) != getNextPage()) {
                 // Apply the gird translation to running task unless it's being snapped to.
                 runningTaskPrimaryGridTranslation = mOrientationHandler.getPrimaryValue(
                         runningTaskView.getGridTranslationX(),