ConnectionState changes twice in main class - flutter

Question

I have this app where I have an intro screen that I want to hide if the user has already skipped once.
I'm using bloc with a Provider.
My issue is the connection state changes twice when I hot restart the app and I've been spending hours without understanding the reason.
Here is my code:
my main class
void main() => runApp(StatsApp());
class StatsApp extends StatelessWidget {
#override
Widget build(BuildContext context) {
return MultiProvider(
providers: [
ChangeNotifierProvider(
create: (context) => IntroProvider(),
)
],
child: Consumer<IntroProvider>(builder: (context, value, child) {
return MaterialApp(
home: FutureBuilder(
future: value.bloc.checkSkipped(),
builder: (BuildContext context, snapshot) {
print(snapshot.connectionState);
print(snapshot.data);
return SplashScreen();
},
));
}),
);
}
}
my bloc
enum IntroEvents {
ReadLocalStorage,
SetIntroSkipped,
}
class IntroBloc extends Bloc<IntroEvents, bool> {
PrefsManager _prefsManager = PrefsManager.instance;
Future<bool> checkSkipped() async {
this.add(IntroEvents.ReadLocalStorage);
final skipped =
await _prefsManager.getValue(PrefTypes.Bool, "skippedIntro");
return skipped;
}
#override
// TODO: implement initialState
bool get initialState => false;
#override
Stream<bool> mapEventToState(IntroEvents event) async* {
switch (event) {
case IntroEvents.SetIntroSkipped:
_prefsManager.setValue(PrefTypes.Bool, "skippedIntro", true);
yield true;
break;
case IntroEvents.ReadLocalStorage:
final skipped =
await _prefsManager.getValue(PrefTypes.Bool, "skippedIntro");
yield skipped;
break;
default:
print("wtffffff");
}
}
}
my provider
class IntroProvider with ChangeNotifier {
IntroBloc _bloc;
IntroProvider(){
print("called IntroProvider");
_bloc = IntroBloc();
}
IntroBloc get bloc => _bloc;
}
Any help would be highly appreciated.

Answer 1

When working with snapshots you're able to check whether the snapshot.hasData. Normally you'd wrap the functionality you want to run when the snapshot has data in an if statement and provide some kind of default Widget when it does not.
FutureBuilder(
future: value.bloc.checkSkipped(),
builder: (BuildContext context, snapshot) {
print(snapshot.connectionState);
if (snapshot.hasData) {
print(snapshot.data);
}
return SplashScreen();
},
);