1 /* 2 * Copyright (C) 2017 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 com.android.incallui.incalluilock; 18 19 /** 20 * Prevents the {@link com.android.incallui.InCallActivity} from auto-finishing where there are no 21 * calls left. Acquired through {@link 22 * com.android.incallui.InCallPresenter#acquireInCallUiLock(String)}. Example: when a dialog is 23 * still being displayed to the user the InCallActivity should not disappear abruptly when the call 24 * ends, this lock should be held to keep the activity alive until it is dismissed. 25 */ 26 public interface InCallUiLock { 27 release()28 void release(); 29 } 30