/// Flutter code sample for {{element}} {{description}} import 'package:flutter/cupertino.dart'; {{code-imports}} void main() => runApp(new MyApp()); /// This is the main application widget. class MyApp extends StatelessWidget { static const String _title = 'Flutter Code Sample'; @override Widget build(BuildContext context) { return CupertinoApp( title: _title, home: CupertinoPageScaffold( navigationBar: CupertinoNavigationBar(middle: const Text(_title)), body: MyStatelessWidget(), ), ); } } {{code-preamble}} /// This is the stateless widget that the main application instantiates. class MyStatelessWidget extends StatelessWidget { MyStatelessWidget({Key key}) : super(key: key); @override {{code}} }