我正在将 GoRouter 集成到我的 Flutter 应用程序中,我已经在使用 Riverpod。我有一个isAuthorizedProvider
定义如下:
final isAuthorizedProvider = Provider<bool>((ref) {
final authStateChanged = ref.watch(_authStateChangedProvider);
final user = authStateChanged.asData?.value;
return user != null;
});
而且我不确定如何定义依赖于上面的 Provider 的 GoRouter。我想出了以下几点:
final goRouterProvider = Provider<GoRouter>((ref) => GoRouter(
debugLogDiagnostics: true,
redirect: (state) {
final isAuthorized = ref.watch(isAuthorizedProvider);
final isSigningIn = state.subloc == state.namedLocation('sign_in');
if (!isAuthorized) {
return isSigningIn ? null : state.namedLocation('sign_in');
}
// if the user is logged in but still on the login page, send them to
// the home page
if (isSigningIn) return '/';
// no need to redirect at all
return null;
},
routes: [
GoRoute(
path: '/',
...,
),
GoRoute(
name: 'sign_in',
path: '/sign_in',
...,
),
GoRoute(
name: 'main',
path: '/main',
...,
),
...
],
));
class MyApp extends ConsumerWidget {
const MyApp({Key? key}) : super(key: key);
@override
Widget build(BuildContext context, WidgetRef ref) {
final goRouter = ref.watch(goRouterProvider);
return MaterialApp.router(
routeInformationParser: goRouter.routeInformationParser,
routerDelegate: goRouter.routerDelegate,
);
}
这是正确的做法吗?