问题描述
BlockListener应该在成功登录或成功注册后打开欢迎窗口。在这两种情况下，BlocListener均不响应。初始化方法如下：
runApp(
MultiRepositoryProvider(
providers: [
RepositoryProvider<UserRepository>(
create: (context) => UserRepository(storage: storage)
),RepositoryProvider<SettingsRepository>(
create: (BuildContext context) => SettingsRepository(storage: storage)
),RepositoryProvider<SMSRepository>(
create: (BuildContext context) => SMSRepository(storage: storage)
),],child: MultiBlocProvider(
providers: [
BlocProvider<AuthentificationBloc>(
create: (BuildContext context) {
return AuthentificationBloc(userRepository: context.repository<UserRepository>());
}
),BlocProvider<SUSPECTBloc>(
create: (BuildContext context) => SUSPECTBloc()
)
],child: BlocProvider<SigninBloc>(
create: (BuildContext context) => SigninBloc(
userRepository: RepositoryProvider.of<UserRepository>(context),SUSPECTBloc: BlocProvider.of<SUSPECTBloc>(context),authentificationBloc: BlocProvider.of<AuthentificationBloc>(context)),child: App()
)
)
)
);
}
class App extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
onGenerateRoute: RouteGenerator.generateRoute,debugShowCheckedModeBanner: false,theme: DeliveroGnTheme.of(context),home: BlocListener<SUSPECTBloc,SUSPECTException>(
listener: (context,state) =>_shouldHandleException(context,state),child: BlocListener<AuthentificationBloc,AuthenticationState>(
listener: (context,state) {
if (state is AuthenticationSuccess) {
Navigator.of(context).pushReplacementNamed('/DataRecovery');
}else if (state is AuthenticationFailure) {
Navigator.of(context).pushReplacementNamed('/Login');
}else if(state is AuthenticationInProgress) {
Navigator.pushReplacement(context,MaterialPageRoute(builder: (_) {
return CircularLoadingWidget();
}));
}
},child: SplashScreen()
)
)
);
}
AuthentificationBloc
class AuthentificationBloc
extends Bloc<AuthenticationEvent,AuthenticationState> {
final UserRepository userRepository;
AuthentificationBloc({@required this.userRepository})
: assert(userRepository != null),super(AuthenticationInitial());
@override
AuthenticationState get initialState => AuthenticationInitial();
@override
Stream<AuthenticationState> mapEventToState(
AuthenticationEvent event,) async* {
yield StartAuthentication();
if (event is AuthenticationStarted) {
final bool hasCredentials = userRepository.hasCredentials();
if (hasCredentials) {
yield AuthenticationSuccess();
} else {
yield AuthenticationFailure();
}
}
if (event is AuthenticationLoggedOut) {
yield AuthenticationInProgress();
await userRepository.logout();
yield AuthenticationFailure();
}
}
}
在连接后调用AuthentificationBloc的SignBloc块：
class SigninBloc
extends Bloc<SigninEvent,BlocResponse<bool>> {
final UserRepository userRepository;
final SUSPECTBloc SUSPECTBloc;
AuthentificationBloc authentificationBloc;
SigninBloc({@required this.userRepository,@required this.SUSPECTBloc,this.authentificationBloc})
: assert(userRepository != null),super(BlocResponse.initial());
@override
BlocResponse<bool> get initialState => BlocResponse.initial();
@override
Stream<BlocResponse<bool>> mapEventToState(
SigninEvent event,) async* {
try{
if (event is LoggedIn) {
yield BlocResponse.loading('Loading');
print(event.phoneNumber);
final bool authenticate = await userRepository.authenticate(
event.phoneNumber,event.password
);
if(authenticate){
authentificationBloc.add(AuthenticationStarted());
yield BlocResponse.completed(authenticate);
}
else{
yield BlocResponse.error("incorrect password");
}
}
}catch (e,tracklist){
if(e is SUSPECTException){
SUSPECTBloc.emit(e);
}else{
print(tracklist);
}
yield BlocResponse.error(e.toString());
}
}
}
我指定当SplashScreen发出状态时，块会做出反应，但是当我们更改屏幕（登录过程）时，我会遇到问题。
感谢您对我的帮助
解决方法
暂无找到可以解决该程序问题的有效方法，小编努力寻找整理中！
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