Go_Router传递对象到新路由

Question

我想从listview传递对象到子路由。似乎没有办法传递对象。

有什么办法吗?

GoRouter routes(AuthBloc bloc) {
return GoRouter(
navigatorKey: _rootNavigatorKey,
routes: <RouteBase>[
GoRoute(
routes: <RouteBase>[
GoRoute(
path: loginURLPagePath,
builder: (BuildContext context, GoRouterState state) {
return const LoginPage();
},
),
GoRoute(
path: homeURLPagePath,
builder: (BuildContext context, GoRouterState state) =>
const HomePage(),
routes: <RouteBase>[
GoRoute(
path: feeURLPagePath,
name: 'a',
builder: (context, state) => FeePage(),
routes: [
/// Fee Details page
GoRoute(
name: 'b',
path: feeDetailsURLPagePath,
builder: (BuildContext context, GoRouterState state) =>
const FeeDetails(),
),
]),
],
),
],
path: welcomeURLPagePath,
builder: (BuildContext context, GoRouterState state) =>
const SplashPage(),
),
],
refreshListenable: GoRouterRefreshStream(bloc.stream),
debugLogDiagnostics: true,
initialLocation: welcomeURLPagePath,
},
);
} 

错误提示没有找到feeDetails的初始匹配!

Answer 1

在context.goNamed()中使用extra参数

的例子:

对象:

class Sample {
String attributeA;
String attributeB;
bool boolValue;
Sample(
{required this.attributeA,
required this.attributeB,
required this.boolValue});}

定义GoRoute

GoRoute(
path: '/sample',
name: 'sample',
builder: (context, state) {
Sample sample = state.extra as Sample; // -> casting is important
return GoToScreen(object: sample);
},
),

调用为:

Sample sample = Sample(attributeA: "True",attributeB: "False",boolValue: false)
context.goNamed("sample",extra:sample );

接收为:

class GoToScreen extends StatelessWidget {
Sample? object;
GoToScreen({super.key, this.object});
@override
Widget build(BuildContext context) {
return Scaffold(
body: Center(
child: Text(
object.toString(),
style: const TextStyle(fontSize: 24),
)),
);
}
}