当应用程序在后台运行时，Flutter与Firebase云消息传递需要一致的通知

Question

应用程序在后台使用Firebase推送通知时需要一致的通知

我已经使用Flutter本地通知插件在前台运行时实现了一致的通知，当后台运行时如何实现通知？ 这是我的代码部分：

static var androidPlatformChannelSpecifics = new AndroidNotificationDetails(
      'channelid', 'flutterfcm', 'your channel description',
      ledOnMs: 1000,
      enableVibration: true,
      enableLights: true,
      ticker: 'ticker',
      additionalFlags: Int32List.fromList([4]),
      importance: Importance.Max, priority: Priority.High);
  static var iOSPlatformChannelSpecifics = new IOSNotificationDetails();
  static var initializationSettingsAndroid = new AndroidInitializationSettings('@mipmap/ic_launcher');

  static var  initializationSettingsIOS = new IOSInitializationSettings(
      onDidReceiveLocalNotification: null );
  static var initializationSettings = new InitializationSettings(
      initializationSettingsAndroid, initializationSettingsIOS);

  static void firebaseCloudMessaging_Listeners(var currentState, BuildContext ctx) {
    pageState = currentState;
//    if (Platform.isIOS) iOS_Permission();
    flutterLocalNotificationsPlugin.initialize(initializationSettings,
        onSelectNotification: null);

    var platformChannelSpecifics = new NotificationDetails(
        androidPlatformChannelSpecifics, iOSPlatformChannelSpecifics);
      
    _firebaseMessaging.getToken().then((token){
      print("token:"+token);
    });
  
    _firebaseMessaging.configure(
      onMessage: (Map<String, dynamic> message) async {


        print('on message $message');
       
        await flutterLocalNotificationsPlugin.show(
          0,
          message['notification']['title'],
          message['notification']['body'],
          platformChannelSpecifics,
          payload: 'hello',);
       
      },
      onResume: (Map<String, dynamic> message) async {
      
        print('on resume $message');
      },
      onLaunch: (Map<String, dynamic> message) async {
        print('on launch $message');

      },
    );
  }

请分享您对此的知识，我需要在收到通知时蜂鸣电话，这就是我的目的。