1 /* 2 * Copyright (C) 2022 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package android.window; 18 19 /** 20 * Marker interface for {@link OnBackInvokedCallback} used for backward compatibility between the 21 * new system back and the old back event dispatching. Callbacks implementing this interface are 22 * allowed to be registered even if <code>enableOnbackInvoked</code> is set to false in the 23 * application manifest. 24 * @hide 25 */ 26 public interface CompatOnBackInvokedCallback extends OnBackInvokedCallback{ 27 28 @Override onBackInvoked()29 void onBackInvoked(); 30 } 31