Flutter authentification with streams - flutter

Question

apparently I'm doing something fundamentally wrong here... After I login, I send new bool value (T) to isAuthorized stream. StreamBuilder reruns and ends up executing correct if-else branch, but for some reason Login Widget remains rendered on the screen?
class App extends StatelessWidget {
#override
Widget build(BuildContext context) {
return MaterialApp(
title: 'App',
theme: appTheme,
initialRoute: '/',
home: StreamBuilder<bool>(
stream: getIt.get<SessionBloc>().isAuthorized,
initialData: false,
builder: (context, snapshot) {
if (snapshot.data) {
return Home();
} else {
return Login();
}
},
),
routes: {
'/': (context) => Home(),
'/profile': (context) => Profile(),
'/login': (context) => Login(),
'/register': (context) => Register(),
},
),
);
}
}

Answer 1

Because I don't know what's your bloc doing, I created a simple stream that mimics the bloc. It is working fine with this code snippet. If the bloc gives you what you want and goes appropriate if-else block, then you should consider deleting '/': (context) => Home().
This was the exception that I had when I have home route:
If the home property is specified, the routes table cannot include an entry for "/", since it would be redundant.
class Authorization {
final _authorization = StreamController<bool>();
StreamSink<bool> get send => _authorization.sink;
Stream<bool> get isAuthorized => _authorization.stream;
get close => _authorization.close();
}
class MyApp extends StatelessWidget {
Authorization a = new Authorization();
#override
Widget build(BuildContext context) {
return MaterialApp(
title: 'App',
home: StreamBuilder<bool>(
stream: a.isAuthorized,
initialData: false,
builder: (context, snapshot) {
if (snapshot.data) {
return Home(auth: a);
} else {
return Login(auth: a);
}
},
),
routes: {
'/login': (context) => Login(auth: a),
},
);
}
}
class Home extends StatelessWidget {
final Authorization _auth;
Home({#required Authorization auth})
: assert(auth != null),
_auth = auth;
#override
Widget build(BuildContext context) {
return Scaffold(
body: Column(
children: <Widget>[Text("Home"), RaisedButton(
onPressed: () {
_auth.send.add(false);
},
)],
),
);
}
}
class Login extends StatelessWidget {
final Authorization _auth;
Login({#required Authorization auth})
: assert(auth != null),
_auth = auth;
#override
Widget build(BuildContext context) {
return Scaffold(
body: Column(
children: <Widget>[Text("Login"), RaisedButton(
onPressed: () {
_auth.send.add(true);
},
)],
),
);
}
}