针对应用前、后台模式切换状态监测,监测到变化后根据业务需要再做详细的操作即可;
可以通过 应用站内组件模块间广播消息 Emitter 的方式将其状态分发至所需模块处理;
具体参考如下 code:
// 监听应用前、后台模式
import common from '@ohos.app.ability.common';
import ApplicationStateChangeCallback from '@ohos.app.ability.ApplicationStateChangeCallback';
/****** 应用前、后台模式切换相关 ******/
let appActiveCallback: ApplicationStateChangeCallback = {
onApplicationForeground() {
console.log('[App 前后台监听] - 进入前台')
// do somethings
},
onApplicationBackground() {
console.log('[App 前后台监听] - 进入后台')
// do somethings
}
}
// 监听:应用前、后台模式切换
try {
let context = getContext(this) as common.UIAbilityContext
// this.context.getApplicationContext().on('applicationStateChange', appActiveCallback)
context.getApplicationContext().on('applicationStateChange', appActiveCallback)
} catch (error) {
console.info(`error code: ${(error as BusinessError).code}, error msg: ${(error as BusinessError).message}`);
}
@Entry
@Component
struct MainPage {
build() {
}
}
以上便是此次分享的全部内容，希望能对大家有所帮助！
