feat(QuickSwitch): Reimpl Baklava compat

Signed-off-by: Pun Butrach <pun.butrach@gmail.com>

compatLib/src/main/java/android/window/OnBackAnimationCallback.java

@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 package android.window;
-
 import android.annotation.NonNull;
 import android.app.Activity;
 import android.app.Dialog;
@@ -22,30 +21,29 @@ import android.view.View;
 import android.view.Window;
 
 /**
- * Interface for applications to register back animation callbacks along their custom back handling.
- *
- * <p>This allows the client to customize various back behaviors by overriding the corresponding
+ * Interface for applications to register back animation callbacks along their custom back
+ * handling.
+ * <p>
+ * This allows the client to customize various back behaviors by overriding the corresponding
  * callback methods.
- *
- * <p>Callback instances can be added to and removed from {@link OnBackInvokedDispatcher}, which is
- * held at window level and accessible through {@link Activity#getOnBackInvokedDispatcher()}, {@link
- * Dialog#getOnBackInvokedDispatcher()}, {@link Window#getOnBackInvokedDispatcher()} and {@link
- * View#findOnBackInvokedDispatcher()}.
- *
- * <p>When back is triggered, callbacks on the in-focus window are invoked in reverse order in which
+ * <p>
+ * Callback instances can be added to and removed from {@link OnBackInvokedDispatcher}, which
+ * is held at window level and accessible through {@link Activity#getOnBackInvokedDispatcher()},
+ * {@link Dialog#getOnBackInvokedDispatcher()}, {@link Window#getOnBackInvokedDispatcher()}
+ * and {@link View#findOnBackInvokedDispatcher()}.
+ * <p>
+ * When back is triggered, callbacks on the in-focus window are invoked in reverse order in which
  * they are added within the same priority. Between different priorities, callbacks with higher
  * priority are invoked first.
- *
  * <p>
- *
  * @see OnBackInvokedCallback
  */
 public interface OnBackAnimationCallback extends OnBackInvokedCallback {
     /**
      * Called when a back gesture has been started, or back button has been pressed down.
      *
-     * @param backEvent The {@link BackEvent} containing information about the touch or button
-     *     press.
+     * @param backEvent The {@link BackEvent} containing information about the touch or
+     *                  button press.
      * @see BackEvent
      */
     default void onBackStarted(@NonNull BackEvent backEvent) {}
@@ -54,10 +52,12 @@ public interface OnBackAnimationCallback extends OnBackInvokedCallback {
      * Called when a back gesture progresses.
      *
      * @param backEvent An {@link BackEvent} object describing the progress event.
+     *
      * @see BackEvent
      */
-    default void onBackProgressed(@NonNull BackEvent backEvent) {}
-
-    /** Called when a back gesture or back button press has been cancelled. */
-    default void onBackCancelled() {}
+    default void onBackProgressed(@NonNull BackEvent backEvent) { }
+    /**
+     * Called when a back gesture or back button press has been cancelled.
+     */
+    default void onBackCancelled() { }
 }