firebase push notification in flutter (Sample Code)

firebase push notification in flutter

import 'dart:io';
import 'package:firebase_messaging/firebase_messaging.dart';
import 'package:flutter/material.dart';
import 'package:flutter_local_notifications/flutter_local_notifications.dart';


class MyAppsPage extends StatelessWidget {
  return MaterialApp(
            home: HomePage(title: 'Firebase'),
          );
}

class HomePage extends StatefulWidget {
  HomePage({Key key, this.title}) : super(key: key);
  final String title;

  @override
  _AppsPageState createState() => _AppsPageState();
}

class _AppsPageState extends State<HomePage> {
  FirebaseMessaging _firebaseMessaging = new FirebaseMessaging();
  FlutterLocalNotificationsPlugin flutterLocalNotificationsPlugin;

  @override
  void initState() {
    
    super.initState();    

    _firebaseMessaging.configure(
      onMessage: (Map<String, dynamic> message) {
        print('on message $message');
        showNotification(message);
      },
      onResume: (Map<String, dynamic> message) {
        print('on resume $message');
      },
      onLaunch: (Map<String, dynamic> message) {
        print('on launch $message');
      },
    );
    _firebaseMessaging.requestNotificationPermissions(
        const IosNotificationSettings(sound: true, badge: true, alert: true));
    _firebaseMessaging.getToken().then((token) {
      fcm_token = token;
      print(token);
    });

    flutterLocalNotificationsPlugin = new FlutterLocalNotificationsPlugin();
    var android = new AndroidInitializationSettings('@mipmap/ic_launcher');
    var iOS = new IOSInitializationSettings();
    var initSetttings = new InitializationSettings(android, iOS);
    flutterLocalNotificationsPlugin.initialize(initSetttings,
        onSelectNotification: onSelectNotification);

  }


  @override
  Widget build(BuildContext context) {
    return Scaffold();
  }



  Future onSelectNotification(String payload) {
    showDialog(
      context: context,
      builder: (_) =>
      new AlertDialog(
        title: new Text('Notification'),
        content: new Text('$payload'),
      ),
    );
  }

  showNotification(Map<String, dynamic> message) async {
    var android = new AndroidNotificationDetails(
        'channel id', 'channel NAME', 'CHANNEL DESCRIPTION',
        priority: Priority.High, importance: Importance.Max);
    var iOS = new IOSNotificationDetails();
    var platform = new NotificationDetails(android, iOS);
    await flutterLocalNotificationsPlugin.show(0, 'Message Title,',
        'Test Message Body', platform,
        payload: 'Test Message (you can put notification msg)');
  }

}