Flutter notification badge on app icon

Flutter Badges Tutorial Code Example:

import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:badges/badges.dart';


void main() => runApp(MyApp());

class MyApp extends StatefulWidget {
  @override
  _MyAppState createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      home: HOMEWIDGET(),
    );
  }
}

class HOMEWIDGET extends StatefulWidget {
  const HOMEWIDGET({Key? key}) : super(key: key);

  @override
  _HOMEWIDGETState createState() => _HOMEWIDGETState();


}
class _HOMEWIDGETState extends State<HOMEWIDGET> {


  @override
  Widget build(BuildContext context) {
    return Scaffold(
       body: Center(
         child: Badge(
           badgeContent: Text('15'),
           badgeColor: Colors.redAccent, 
           child: Icon(Icons.message,size: 50,color:Colors.blue),
         ),
       )

    );
  }
}