in nav2-usability/scenario_code/lib/deeplink-queryparam/deeplink_queryparam_go_router.dart [64:84]
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(),
body: ListView(
children: [
TextField(
decoration: InputDecoration(
hintText: 'filter',
),
onSubmitted: (value) => context.go('/?filter=$value'),
),
for (var book in books)
if (filter == null || book.title.toLowerCase().contains(filter!))
ListTile(
title: Text(book.title),
subtitle: Text(book.author),
)
],
),
);
}