[automerge] Revert "Revert "Sync hotseat/taskbar handoff"" 2p: 27f9559203 2p: debdedebed

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/17606862

Bug: 223789074
Bug: 223443781
Bug: 202507555
Change-Id: I4c81d223826ba53f18b6e03d603e2a8ffb694f35

quickstep/src/com/android/launcher3/taskbar/TaskbarViewController.java

@@ -200,6 +200,16 @@ public class TaskbarViewController implements TaskbarControllers.LoggableTaskbar
                 ));
     }
 
+    /**
+     * Creates the icon alignment controller if it does not already exist.
+     * @param launcherDp Launcher device profile.
+     */
+    public void createIconAlignmentControllerIfNotExists(DeviceProfile launcherDp) {
+        if (mIconAlignControllerLazy == null) {
+            mIconAlignControllerLazy = createIconAlignmentController(launcherDp);
+        }
+    }
+
     /**
      * Sets the taskbar icon alignment relative to Launcher hotseat icons
      * @param alignmentRatio [0, 1]
@@ -207,9 +217,7 @@ public class TaskbarViewController implements TaskbarControllers.LoggableTaskbar
      *                       1 => fully aligned
      */
     public void setLauncherIconAlignment(float alignmentRatio, DeviceProfile launcherDp) {
-        if (mIconAlignControllerLazy == null) {
-            mIconAlignControllerLazy = createIconAlignmentController(launcherDp);
-        }
+        createIconAlignmentControllerIfNotExists(launcherDp);
         mIconAlignControllerLazy.setPlayFraction(alignmentRatio);
         if (alignmentRatio <= 0 || alignmentRatio >= 1) {
             // Cleanup lazy controller so that it is created again in next animation