Merge "Revert "Synchronize the app launch and taskbar stash animations."" into main
diff --git a/quickstep/src/com/android/launcher3/taskbar/KeyboardQuickSwitchView.java b/quickstep/src/com/android/launcher3/taskbar/KeyboardQuickSwitchView.java
index 0ba5de1..dbd9c73 100644
--- a/quickstep/src/com/android/launcher3/taskbar/KeyboardQuickSwitchView.java
+++ b/quickstep/src/com/android/launcher3/taskbar/KeyboardQuickSwitchView.java
@@ -54,6 +54,7 @@
 import com.android.launcher3.testing.shared.TestProtocol;
 import com.android.quickstep.util.DesktopTask;
 import com.android.quickstep.util.GroupTask;
+import com.android.systemui.shared.recents.model.Task;
 import com.android.systemui.shared.system.InteractionJankMonitorWrapper;
 
 import java.util.HashMap;
@@ -213,9 +214,16 @@
                         resources.getString(R.string.quick_switch_desktop),
                         Locale.getDefault()).format(args));
             } else {
+                final boolean firstTaskIsLeftTopTask =
+                        groupTask.mSplitBounds == null
+                        || groupTask.mSplitBounds.leftTopTaskId == groupTask.task1.key.id;
+                final Task leftTopTask = firstTaskIsLeftTopTask
+                        ? groupTask.task1 : groupTask.task2;
+                final Task rightBottomTask = firstTaskIsLeftTopTask
+                        ? groupTask.task2 : groupTask.task1;
                 currentTaskView.setThumbnails(
-                        groupTask.task1,
-                        groupTask.task2,
+                        leftTopTask,
+                        rightBottomTask,
                         updateTasks ? mViewCallbacks::updateThumbnailInBackground : null,
                         updateTasks ? mViewCallbacks::updateIconInBackground : null);
             }
diff --git a/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java b/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java
index 6085998..c3d3729 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java
@@ -1388,10 +1388,11 @@
      */
     public void launchSplitTasks(
             @NonNull GroupTask groupTask, @Nullable RemoteTransition remoteTransition) {
-        // Top/left and bottom/right tasks respectively.
-        Task task1 = groupTask.task1;
+        // SplitBounds can be null if coming from Taskbar launch.
+        final boolean firstTaskIsLeftTopTask = isFirstTaskLeftTopTask(groupTask);
         // task2 should never be null when calling this method. Allow a crash to catch invalid calls
-        Task task2 = groupTask.task2;
+        Task task1 = firstTaskIsLeftTopTask ? groupTask.task1 : groupTask.task2;
+        Task task2 = firstTaskIsLeftTopTask ? groupTask.task2 : groupTask.task1;
         mSplitSelectStateController.launchExistingSplitPair(
                 null /* launchingTaskView */,
                 task1.key.id,
@@ -1405,6 +1406,11 @@
                 remoteTransition);
     }
 
+    private static boolean isFirstTaskLeftTopTask(@NonNull GroupTask groupTask) {
+        return groupTask.mSplitBounds == null
+                || groupTask.mSplitBounds.leftTopTaskId == groupTask.task1.key.id;
+    }
+
     /**
      * Launches two apps as an app pair.
      */