Merge "launcher: check if task still exists before leaving it in focus" into sc-v2-dev am: 03f0c67420

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15273350

Change-Id: Ida8a2d63d6570812555ad55155e9e6111dd06377
diff --git a/quickstep/src/com/android/quickstep/views/RecentsView.java b/quickstep/src/com/android/quickstep/views/RecentsView.java
index 6d3f855..d03ea1d 100644
--- a/quickstep/src/com/android/quickstep/views/RecentsView.java
+++ b/quickstep/src/com/android/quickstep/views/RecentsView.java
@@ -1158,7 +1158,9 @@
             final TaskView taskView = (TaskView) getChildAt(pageIndex);
             taskView.bind(task, mOrientationState);
         }
-        if (mFocusedTaskId == -1 && getTaskViewCount() > 0) {
+
+        // If the list changed, maybe the focused task doesn't exist anymore
+        if (getFocusedTaskView() == null && getTaskViewCount() > 0) {
             mFocusedTaskId = getTaskViewAt(0).getTaskId();
         }
         updateTaskSize();