请善待并告诉我在哪里添加代码行以及遵循什么逻辑?
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
final alreadySaved = _savedQuotes.contains(context);
return MaterialApp(
theme: ThemeData(primaryColor: Colors.blue[600]),
home: Scaffold(
appBar: AppBar(title: Text('Quotes')),
body: ListView(
padding: const EdgeInsets.all(8),
children: <Widget>[
),
Container(
height: 50,
color: Colors.blue[200],
child: const Center(
child: Text(
'You only live once, but if you do it right, once is enough.')),
)
],
)));
}
}
我在 Dart 方面很差,刚开始 这里是应用程序的 Scrrenshot
我想在左侧为每个将打开和关闭收藏夹的引号添加类似图标