|  | // Flutter code sample for {{element}} | 
|  | // | 
|  | {{description}} | 
|  |  | 
|  | {{code-dartImports}} | 
|  |  | 
|  | import 'package:flutter/material.dart'; | 
|  | {{code-imports}} | 
|  |  | 
|  | void main() => runApp(const MyApp()); | 
|  |  | 
|  | /// This is the main application widget. | 
|  | class MyApp extends StatelessWidget { | 
|  | const MyApp({Key? key}) : super(key: key); | 
|  |  | 
|  | static const String _title = 'Flutter Code Sample'; | 
|  |  | 
|  | @override | 
|  | Widget build(BuildContext context) { | 
|  | return MaterialApp( | 
|  | title: _title, | 
|  | home: Scaffold( | 
|  | appBar: AppBar(title: const Text(_title)), | 
|  | body: const Center( | 
|  | child: MyStatefulWidget(), | 
|  | ), | 
|  | ), | 
|  | ); | 
|  | } | 
|  | } | 
|  |  | 
|  | {{code-preamble}} | 
|  |  | 
|  | /// This is the stateful widget that the main application instantiates. | 
|  | class MyStatefulWidget extends StatefulWidget { | 
|  | const MyStatefulWidget({Key? key}) : super(key: key); | 
|  |  | 
|  | @override | 
|  | State<MyStatefulWidget> createState() => _MyStatefulWidgetState(); | 
|  | } | 
|  |  | 
|  | /// This is the private State class that goes with MyStatefulWidget. | 
|  | class _MyStatefulWidgetState extends State<MyStatefulWidget> { | 
|  | {{code}} | 
|  | } |