flutter-examples/using_listview/lib/main.dart

import 'package:flutter/material.dart';

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

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return new MaterialApp(
        home: new Scaffold(
      appBar: new AppBar(
        title: new Text("Using Listview"),
      ),
      body: new Center(
        child: new Text("Hello World!"),
      ),
    ));
  }
}