每天安排通知Flutter

Question

FlutterLocalNotificationsPlugin flutterLocalNotificationsPlugin =
      new FlutterLocalNotificationsPlugin();
  var initializationSettingsAndroid;
  var initializationSettingsIOS;
  var initializationSettings;

  void _showNotification() async {
    await _demoNotification();
  }

  Future<void> _demoNotification() async {
    var now = DateTime.now();
    print(now);
    var time_spec = new Time(10, 46, 10);
    print(time_spec.hour);
    var vibrationPattern = new Int64List(4);
    vibrationPattern[0] = 0;
    vibrationPattern[1] = 1000;
    vibrationPattern[2] = 5000;
    vibrationPattern[3] = 2000;
    var androidPlatformChannelSpecifics = AndroidNotificationDetails(
        'channel_ID', 'channel name', 'channel description',
        importance: Importance.Max,
        priority: Priority.High,
        ticker: 'test ticker');

    var iOSChannelSpecifics = IOSNotificationDetails();
    var platformChannelSpecifics = NotificationDetails(
        androidPlatformChannelSpecifics, iOSChannelSpecifics);
    await flutterLocalNotificationsPlugin.showDailyAtTime(6, 'Reminder',
        'Did you add your Details today', time_spec, platformChannelSpecifics,
        payload: "payload");
      var pending =  flutterLocalNotificationsPlugin.pendingNotificationRequests();

  }

  @override
  void initState() {
    super.initState();
    initializationSettingsAndroid =
        new AndroidInitializationSettings('@mipmap/ic_launcher');
    initializationSettingsIOS = new IOSInitializationSettings(
        onDidReceiveLocalNotification: onDidReceiveLocalNotification);
    initializationSettings = new InitializationSettings(
        initializationSettingsAndroid, initializationSettingsIOS);
    flutterLocalNotificationsPlugin.initialize(initializationSettings,
        onSelectNotification: onSelectNotification);
  }

  Future<void> onSelectNotification(String payload) async {
    if (payload != null) {
      print('notification payload: ' + payload);
    }
    // Navigator.push(
    //     context, new MaterialPageRoute(builder: (context) => new Setting()));
  }

  Future onDidReceiveLocalNotification(
      int id, String title, String body, String payload) async {
    await showDialog(
        context: context,
        builder: (BuildContext context) => CupertinoAlertDialog(
              title: Text(title),
              content: Text(body),
              actions: <Widget>[
                CupertinoDialogAction(
                  isDefaultAction: true,
                  child: Text('Ok'),
                  onPressed: () async {
                    Navigator.of(context, rootNavigator: true).pop();
                    await Navigator.push(context,
                        MaterialPageRoute(builder: (context) => Setting()));
                  },
                )
              ],
            ));
  }

这是用于在特定时间显示每日通知的代码 ................................................... ................................................... ................................................... ................................................... ................................................... ................................................... ................................................... .................................... 这是对的吗