import 'package:flutter/material.dart'; void main() => runApp(new MyApp()); class MyApp extends StatelessWidget { @override Widget build(BuildContext context) { return new MaterialApp( home: new Scaffold( appBar: new AppBar( // Here we take the value from the MyHomePage object that was created by // the App.build method, and use it to set our appbar title. title: new Text("GridView Example"), ), body: new Container( child: new Center(child: new Text("Hello World")), ), ), ); } }