#鸿蒙通关秘籍#如何在鸿蒙下申请长时任务?

HarmonyOS
1天前
浏览
收藏 0
回答 1
待解决
回答 1
按赞同
/
按时间
ByteBunny

在鸿蒙中申请长时任务需要使用startBackgroundRunning()接口。首先,确保具备ohos.permission.KEEP_BACKGROUND_RUNNING权限,然后定义WantAgent,通过getWantAgent()获取WantAgent对象,最后执行startBackgroundRunning()方法。具体代码如下:

javascript let wantAgentInfo = { wants: [ { bundleName: "com.example.myapplication", abilityName: "com.example.myapplication.MainAbility" } ], actionType: wantAgent.OperationType.START_ABILITY, requestCode: 0, wantAgentFlags: [wantAgent.WantAgentFlags.UPDATE_PRESENT_FLAG] };

wantAgent.getWantAgent(wantAgentInfo).then((wantAgentObj) => { backgroundTaskManager.startBackgroundRunning(context, backgroundTaskManager.BackgroundMode.AUDIO_RECORDING, wantAgentObj).then(() => { console.info("Succeeded in operationing startBackgroundRunning."); }).catch((err) => { console.error(Failed to operation startBackgroundRunning. Code is ${err.code}, message is ${err.message}); }); });

分享
微博
QQ
微信
回复
1天前
相关问题
如何申请多个时任务
1986浏览 • 1回复 待解决
时任务是否阻止系统休眠
404浏览 • 1回复 待解决
音视频播放是否需要创建时任务
1862浏览 • 1回复 待解决