using main function before runApp flutter
import 'package:flutter/material.dart';
main() => runApp(MyApp());
class MyApp extends StatefulWidget {
@override
MyAppState createState() {
return new MyAppState();
}
}
class MyAppState extends State<MyApp> {
@override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
body: Container()
),
);
}
}