161847f8eSopenharmony_ci/*
261847f8eSopenharmony_ci * Copyright (c) 2023 Huawei Device Co., Ltd.
361847f8eSopenharmony_ci * Licensed under the Apache License, Version 2.0 (the "License"),
461847f8eSopenharmony_ci * you may not use this file except in compliance with the License.
561847f8eSopenharmony_ci * You may obtain a copy of the License at
661847f8eSopenharmony_ci *
761847f8eSopenharmony_ci *     http://www.apache.org/licenses/LICENSE-2.0
861847f8eSopenharmony_ci *
961847f8eSopenharmony_ci * Unless required by applicable law or agreed to in writing, software
1061847f8eSopenharmony_ci * distributed under the License is distributed on an "AS IS" BASIS,
1161847f8eSopenharmony_ci * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
1261847f8eSopenharmony_ci * See the License for the specific language governing permissions and
1361847f8eSopenharmony_ci * limitations under the License.
1461847f8eSopenharmony_ci */
1561847f8eSopenharmony_ci
1661847f8eSopenharmony_ci/**
1761847f8eSopenharmony_ci * @file
1861847f8eSopenharmony_ci * @kit AbilityKit
1961847f8eSopenharmony_ci */
2061847f8eSopenharmony_ci
2161847f8eSopenharmony_ciimport type AppStateData from './AppStateData';
2261847f8eSopenharmony_ci
2361847f8eSopenharmony_ci/**
2461847f8eSopenharmony_ci * The app foreground state observer.
2561847f8eSopenharmony_ci *
2661847f8eSopenharmony_ci * @syscap SystemCapability.Ability.AbilityRuntime.Core
2761847f8eSopenharmony_ci * @systemapi
2861847f8eSopenharmony_ci * @since 11
2961847f8eSopenharmony_ci */
3061847f8eSopenharmony_ciexport default class AppForegroundStateObserver {
3161847f8eSopenharmony_ci  /**
3261847f8eSopenharmony_ci   * Will be called when foreground or background application changed.
3361847f8eSopenharmony_ci   *
3461847f8eSopenharmony_ci   * @param { AppStateData } appStateData - State changed application info.
3561847f8eSopenharmony_ci   * @syscap SystemCapability.Ability.AbilityRuntime.Core
3661847f8eSopenharmony_ci   * @systemapi
3761847f8eSopenharmony_ci   * @since 11
3861847f8eSopenharmony_ci   */
3961847f8eSopenharmony_ci  onAppStateChanged(appStateData: AppStateData): void;
4061847f8eSopenharmony_ci}
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