1/* 2 * Copyright (c) 2023 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"), 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16import type AppStateData from './AppStateData'; 17 18/** 19 * The app foreground state observer. 20 * 21 * @syscap SystemCapability.Ability.AbilityRuntime.Core 22 * @systemapi 23 * @since 11 24 */ 25export default class AppForegroundStateObserver { 26 /** 27 * Will be called when foreground or background application changed. 28 * 29 * @param { AppStateData } appStateData - State changed application info. 30 * @syscap SystemCapability.Ability.AbilityRuntime.Core 31 * @systemapi 32 * @since 11 33 */ 34 onAppStateChanged(appStateData: AppStateData): void; 35} 36