Animate TaskView as you swipe down on it to launch

Bug: 73835352
Change-Id: Ia255a7af8fb6cd972f99de6390e097afc29c1b90
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index 11e8c57..50a88ce 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -1684,6 +1684,10 @@
                 : mAppTransitionManager.getActivityLaunchOptions(this, v);
     }
 
+    public LauncherAppTransitionManager getAppTransitionManager() {
+        return mAppTransitionManager;
+    }
+
     @TargetApi(Build.VERSION_CODES.M)
     @Override
     protected boolean onErrorStartingShortcut(Intent intent, ItemInfo info) {