ArkTS后台代理提醒，需要如何处理？

"reqPermissions": [ 
  { 
    "name": "ohos.permission.PUBLISH_AGENT_REMINDER", 
  } 
]

import reminderAgent from'@ohos.reminderAgent';

let reminderRequest : reminderAgent.ReminderRequestAlarm  = { 
  reminderType: reminderAgent.ReminderType.REMINDER_TYPE_ALARM,//提醒类型：闹钟 
  hour: this.hour,//小时 
  minute: this.minute,//分钟 
  title: '闹钟',//标题 
  actionButton: [//提醒通知栏中显示的按钮 
    { 
      title: "close", 
      type: reminderAgent.ActionButtonType.ACTION_BUTTON_TYPE_CLOSE 
    } 
  ], 
  maxScreenWantAgent: {//点击通知后需要跳转的目标ability信息 
    pkgName : 'com.example.alarmclock', 
    abilityName: 'com.example.alarmclock.MainAbility' 
  } 
}

let timer : reminderAgent.ReminderRequestTimer = { 
  reminderType: reminderAgent.ReminderType.REMINDER_TYPE_TIMER,//提醒类型：倒计时 
  triggerTimeInSeconds: 10,//设置倒计时的秒数 
  actionButton: [ 
    { 
      title: "close", 
      type: reminderAgent.ActionButtonType.ACTION_BUTTON_TYPE_CLOSE 
    } 
  ], 
  wantAgent: { 
    pkgName: "com.example.device", 
    abilityName: "com.example.device.MainAbility" 
  }, 
  title: "this is title", 
  content: "this is content", 
}

this.reminderId = await reminderAgent.publishReminder(reminderRequest)

reminderAgent.cancelReminder(item.reminderId, () => { 
  Logger.info(TAG, `do next`) 
})