Play fallback animation if there are multiple closing targets.

Bug: 200247089
Test: close app w/ gesture nav, 3 button nav
      close split screen apps

Change-Id: I748f038eaf1542014f3acbb8fa31488936835dfe
diff --git a/quickstep/src/com/android/launcher3/QuickstepTransitionManager.java b/quickstep/src/com/android/launcher3/QuickstepTransitionManager.java
index c4a3fb5..9168390 100644
--- a/quickstep/src/com/android/launcher3/QuickstepTransitionManager.java
+++ b/quickstep/src/com/android/launcher3/QuickstepTransitionManager.java
@@ -1186,6 +1186,19 @@
         return false;
     }
 
+    private boolean hasMultipleTargetsWithMode(RemoteAnimationTargetCompat[] targets, int mode) {
+        int numTargets = 0;
+        for (RemoteAnimationTargetCompat target : targets) {
+            if (target.mode == mode) {
+                numTargets++;
+            }
+            if (numTargets > 1) {
+                return true;
+            }
+        }
+        return false;
+    }
+
     /**
      * @return Runner that plays when user goes to Launcher
      * ie. pressing home, swiping up from nav bar.
@@ -1580,7 +1593,8 @@
                 View launcherView = findLauncherView(appTargets);
                 boolean playFallBackAnimation = (launcherView == null
                         && launcherIsForceInvisibleOrOpening)
-                        || mLauncher.getWorkspace().isOverlayShown();
+                        || mLauncher.getWorkspace().isOverlayShown()
+                        || hasMultipleTargetsWithMode(appTargets, MODE_CLOSING);
 
                 boolean playWorkspaceReveal = true;
                 boolean skipAllAppsScale = false;