From 5841b168fb941d980ab82eb73b049fa0c17c52f4 Mon Sep 17 00:00:00 2001
From: Tony Wickham <twickham@google.com>
Date: Mon, 21 Aug 2023 18:46:44 +0000
Subject: [PATCH] Add null check for mRecentsView when recents animation is
 canceled

Flag: none
Test: TaplTestsPersistentTaskbar#testHideTaskbarPersistsOnRecreate
Fixes: 295796661
Change-Id: Idb454105cc86f1b9dbe720ba0ee28ad03436ec14
---
 .../android/quickstep/AbsSwipeUpHandler.java  | 30 ++++++++++---------
 1 file changed, 16 insertions(+), 14 deletions(-)

diff --git a/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java b/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
index 796840d829..7b6f10b8c5 100644
--- a/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
+++ b/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
@@ -518,20 +518,22 @@ public abstract class AbsSwipeUpHandler<T extends StatefulActivity<S>,
         // Set up a entire animation lifecycle callback to notify the current recents view when
         // the animation is canceled
         mGestureState.runOnceAtState(STATE_RECENTS_ANIMATION_CANCELED, () -> {
-                HashMap<Integer, ThumbnailData> snapshots =
-                        mGestureState.consumeRecentsAnimationCanceledSnapshot();
-                if (snapshots != null) {
-                    mRecentsView.switchToScreenshot(snapshots, () -> {
-                        if (mRecentsAnimationController != null) {
-                            mRecentsAnimationController.cleanupScreenshot();
-                        } else if (mDeferredCleanupRecentsAnimationController != null) {
-                            mDeferredCleanupRecentsAnimationController.cleanupScreenshot();
-                            mDeferredCleanupRecentsAnimationController = null;
-                        }
-                    });
-                    mRecentsView.onRecentsAnimationComplete();
-                }
-            });
+            if (mRecentsView == null) return;
+
+            HashMap<Integer, ThumbnailData> snapshots =
+                    mGestureState.consumeRecentsAnimationCanceledSnapshot();
+            if (snapshots != null) {
+                mRecentsView.switchToScreenshot(snapshots, () -> {
+                    if (mRecentsAnimationController != null) {
+                        mRecentsAnimationController.cleanupScreenshot();
+                    } else if (mDeferredCleanupRecentsAnimationController != null) {
+                        mDeferredCleanupRecentsAnimationController.cleanupScreenshot();
+                        mDeferredCleanupRecentsAnimationController = null;
+                    }
+                });
+                mRecentsView.onRecentsAnimationComplete();
+            }
+        });
 
         setupRecentsViewUi();
         mRecentsView.runOnPageScrollsInitialized(this::linkRecentsViewScroll);