1/* 2 * Copyright (c) 2022-2023 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 16/** 17 * @file 18 * @kit AbilityKit 19 */ 20 21import AbilityConstant from './@ohos.app.ability.AbilityConstant'; 22import { Configuration } from './@ohos.app.ability.Configuration'; 23 24/** 25 * The environment callback. 26 * 27 * @syscap SystemCapability.Ability.AbilityRuntime.Core 28 * @since 9 29 */ 30/** 31 * The environment callback. 32 * 33 * @syscap SystemCapability.Ability.AbilityRuntime.Core 34 * @atomicservice 35 * @since 11 36 */ 37export default class EnvironmentCallback { 38 /** 39 * Called when the system configuration is updated. 40 * 41 * @param { Configuration } config - Indicates the updated configuration. 42 * @syscap SystemCapability.Ability.AbilityRuntime.AbilityCore 43 * @StageModelOnly 44 * @since 9 45 */ 46 /** 47 * Called when the system configuration is updated. 48 * 49 * @param { Configuration } config - Indicates the updated configuration. 50 * @syscap SystemCapability.Ability.AbilityRuntime.AbilityCore 51 * @StageModelOnly 52 * @atomicservice 53 * @since 11 54 */ 55 onConfigurationUpdated(config: Configuration): void; 56 57 /** 58 * Called when the system has determined to trim the memory, for example, when the ability is running in the 59 * background and there is no enough memory for running as many background processes as possible. 60 * 61 * @param { AbilityConstant.MemoryLevel } level - Indicates the memory trim level, which shows the current memory usage status. 62 * @syscap SystemCapability.Ability.AbilityRuntime.AbilityCore 63 * @StageModelOnly 64 * @since 9 65 */ 66 /** 67 * Called when the system has determined to trim the memory, for example, when the ability is running in the 68 * background and there is no enough memory for running as many background processes as possible. 69 * 70 * @param { AbilityConstant.MemoryLevel } level - Indicates the memory trim level, which shows the current memory usage status. 71 * @syscap SystemCapability.Ability.AbilityRuntime.AbilityCore 72 * @StageModelOnly 73 * @atomicservice 74 * @since 11 75 */ 76 onMemoryLevel(level: AbilityConstant.MemoryLevel): void; 77} 78