需要有关扑扑的Firebase通知的帮助

Question

我正在使用Firebase消息服务，并且试图将创建的任务通知自己。例如，我已将任务设置为1月6日，并且我希望该应用在1月6日通知我。我不了解如何执行此操作，因为我刚开始使用flutter（飞镖）。

在这里，我尝试过这样的代码，我已经完整列出了来自Firebase Cloud Firestore的任务，但是我想在上面添加通知服务。

这是我的代码。

  @override
  void initState() {
    // TODO: implement initState
    super.initState();
    _dateText = "${_dueDate.day}/${_dueDate.month}/${_dueDate.year}";

    menuDataList = [
      new MenuData(Icons.add, (context, menuData) {
 //      Navigator.of(context).push(new MaterialPageRoute(builder: (BuildContext context)=> new AddTask(email: widget.user.email)));

      _addData();

      }
      ,labelText: 'Add Task'
      ),
      new MenuData(Icons.group_add, (context, menuData) {
        Navigator.of(context).push(new MaterialPageRoute(builder: (BuildContext context)=> new AddGroup(email: widget.user.email)));
      }
      ,labelText: 'Add Group'
      ),
      new MenuData(Icons.group, (context, menuData) {

        Navigator.of(context).push(new MaterialPageRoute(builder: (BuildContext context)=> new CreateGroup(email: widget.user.email  )));
      }
      ,labelText: 'View Group'
      ),
      new MenuData(Icons.search, (context, menuData) {
        Navigator.of(context).push(new MaterialPageRoute(builder: (BuildContext context)=> new MySearchPage()));
      }
          ,labelText: 'Search Here'
      ),
    ];
    var android = new AndroidInitializationSettings('mipmap/ic_launcher');
    var ios = new IOSInitializationSettings();
    var platform = new InitializationSettings(android , ios);
    flutterLocalNotificationsPlugin.initialize(platform);
    _firebaseMessaging.configure(

      onMessage: (Map<String , dynamic> message){
        showNotification(message);
        print('on message $message');
      },
      onResume: (Map<String , dynamic> message){
        showNotification(message);
        print('on message $message');
      },
      onLaunch: (Map<String , dynamic> message){
        showNotification(message);
        print('on message $message');
      },
    );
    _firebaseMessaging.getToken().then((token){
      print(token);
    });
  }

  showNotification(Map<String , dynamic> message) async{
    var android = new AndroidNotificationDetails('channel_id' , "CHANNAL NAME" , "channelDescription");
    var ios = IOSNotificationDetails();
    var platform = new NotificationDetails(android, ios);
    await flutterLocalNotificationsPlugin.show(0, "this is my title", "this is my body title", platform);
  }