The argument type 'StreamSubscription<User?>' can't be assigned to the paramete-CodePudding

I have bolded where the error line is. I am aware that I have assigned an incorrect type here, but what type should I return based on the error above? Thank you in advance.

class MyHomePage extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    final BaseAuth auth = Provider.of(context).auth;
    return StreamBuilder<String>(
      stream: **auth.authStateChanges**,
      builder: (context, AsyncSnapshot<String> snapshot) {
        if (snapshot.connectionState == ConnectionState.active) {
          final bool loggedIn = snapshot.hasData;
          if (loggedIn == true) {
            return HomePage();
          } else {
            return LoginPage();
          }
        }
        return CircularProgressIndicator();
      },
    );
  }
}

CodePudding user response：

You need to return:

StreamBuilder<User?>(...

Instead of:

StreamBuilder<String>

And change the builder to be of type User, like this:

builder: (context, AsyncSnapshot<User> snapshot) {...

And:

final AuthService auth = Provider.of(context).auth;

Docs: https://pub.dev/documentation/firebase_auth/latest/firebase_auth/FirebaseAuth/authStateChanges.html