Dart Streams blocking - stream

Question

I am using the BLoC pattern for a Futter app but I can't get both listeners to work.
If I call the loggedIn.listen() before the register.listen() the register.listen() won't work anymore and vice versa.
AuthBloc({this.authService}) {
Stream<CrendentialsDetail> detailStream = Observable.combineLatest2(
emailStream,
passwordStream,
(email, password) {
return CrendentialsDetail(email: email, password: password);
},
);
Stream<AuthResponse> loggedIn ... code ...
Stream<RegisterResponse> register ... code ...
register.listen((RegisterResponse res) {
Scaffold.of(_context).showSnackBar(
new SnackBar(
content: new Text(res.message),
),
);
}, onError: (error) {
Scaffold.of(_context).showSnackBar(
new SnackBar(
content: new Text(error.message),
),
);
});
loggedIn.listen((AuthResponse user) {
currentUserSubject.add(user);
_goToHome();
}, onError: (error) {
Scaffold.of(_context).showSnackBar(
new SnackBar(
content: new Text(error.message),
),
);
});
}
Any help will be appreciated!

Answer 1

This is the solution I'm using right now. Could someone explain to me why is works and my question not?
AuthBloc({this.authService}) {
Observable(loginSubject.stream).withLatestFrom(
Observable.combineLatest2(
emailStream,
passwordStream,
(email, password) {
return CrendentialsDetail(email: email, password: password);
},
), (_, d) {
return d;
}).flatMap((d) {
return Observable.fromFuture(authService.loginUser(d)).doOnListen(() {
loadingSubject.add(true);
}).doOnDone(() {
loadingSubject.add(false);
});
}).listen((AuthResponse user) {
currentUserSubject.add(user);
_goToHome();
}, onError: (error) {
Scaffold.of(_context).showSnackBar(
new SnackBar(
content: new Text(error.message),
),
);
});
Observable(signUpSubject.stream).withLatestFrom(
Observable.combineLatest2(
emailStream,
passwordStream,
(email, password) {
return CrendentialsDetail(email: email, password: password);
},
), (_, d) {
return d;
}).flatMap((d) {
return Observable.fromFuture(authService.register(d)).doOnListen(() {
loadingSubject.add(true);
}).doOnDone(() {
loadingSubject.add(false);
});
}).listen((RegisterResponse res) {
Scaffold.of(_context).showSnackBar(
new SnackBar(
content: new Text(res.message),
),
);
}, onError: (error) {
Scaffold.of(_context).showSnackBar(
new SnackBar(
content: new Text(error.message),
),
);
});
}