HarmonyOS 监听飞行模式的开启和关闭

可以参考下demo：

import web_webview from '@ohos.web.webview';
import commonEventManager from '@ohos.commonEventManager';
import { BusinessError } from '@kit.BasicServicesKit';


@Entry
@Component
struct Index {
  scroller: Scroller = new Scroller();
  mainController: web_webview.WebviewController = new web_webview.WebviewController();
  subController: web_webview.WebviewController = new web_webview.WebviewController();
  tabController: TabsController = new TabsController()

  aboutToAppear(): void {
    this.listen()
  }

  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: 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: 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`);
      }
    })
  }

  build() {
    Column(){
      Text('获取')
    }
    .height('100%')
  }
}

settingApi为设置数据项，不是手机设置的那个，监听飞行模式用公共事件去监听系统公共事件：https://developer.huawei.com/consumer/cn/doc/harmonyos-references-V5/commonevent-definitions-V5