HarmonyOS 获取手机飞行模式API

本地测试可以多次监听，开启监听后只要切换状态均有回调。demo如下：

listen(){
  // 用于保存创建成功的订阅者对象，后续使用其完成订阅及退订的动作
  let subscriber: commonEventManager.CommonEventSubscriber | null = null;
  // 订阅者信息，其中的event字段需要替换为实际的事件名称。
  let subscribeInfo: commonEventManager.CommonEventSubscribeInfo = {
    events: ['usual.event.AIRPLANE_MODE'], // 订阅飞行模式公共事件
  };
  // 创建订阅者回调
  commonEventManager.createSubscriber(subscribeInfo, (err: Base.BusinessError, data: commonEventManager.CommonEventSubscriber) => {
    if (err) {
      console.error(`Failed to create subscriber. Code is ${err.code}, message is ${err.message}`);
      return;
    }
    console.info('Succeeded in creating subscriber.');
    subscriber = data;
    // 订阅公共事件回调
    if (subscriber !== null) {
      commonEventManager.subscribe(subscriber, (err: Base.BusinessError, data: commonEventManager.CommonEventData) => {
        if (err) {
          console.error(`Failed to subscribe common event. Code is ${err.code}, message is ${err.message}`);
          return;
        }
        console.info('log:'+data.event+'-'+data.bundleName+'-'+data.data+'-'+data.code+'-'+data.parameters)
      })
    } else {
      console.error(`Need create subscriber`);
    }
  })
}