Firebase.instance.signOut() not setting the currentUser() to null - firebase

Question

Why is my signOut() method not setting the currentUser() to null??
When I click on logout on my homepage it checks the isAuthenticated() method which is returning a user instead of null. Also, just have a look at the two comments I've included inside the logout() method.
Thank You!!
Here's my code -
class Auth with ChangeNotifier {
final FirebaseAuth _auth = FirebaseAuth.instance;
final GoogleSignIn _googleSignIn = GoogleSignIn();
bool isAuthenticated() {
print('$currentUser inside the isAuthenticated');
if (currentUser == null) {
print('false');
return false;
}
print('true');
return true;
}
Future<FirebaseUser> get currentUser async {
return await _auth.currentUser();
}
Future<FirebaseUser> signInWithEmail(String email, String password) async {
try {
final response = await _auth.signInWithEmailAndPassword(
email: email,
password: password,
);
print(response);
if (response == null) {
print('response is null');
} else {
notifyListeners();
return response.user;
}
} catch (error) {
print('some error');
throw error;
}
}
Future<FirebaseUser> signInWithGoogle() async {
try {
final GoogleSignInAccount _userDetails = await _googleSignIn.signIn();
if (_userDetails == null) {
print('No user found');
} else {
final GoogleSignInAuthentication googleAuth =
await _userDetails.authentication;
final AuthCredential credential = GoogleAuthProvider.getCredential(
accessToken: googleAuth.accessToken,
idToken: googleAuth.idToken,
);
final FirebaseUser user =
(await _auth.signInWithCredential(credential)).user;
return user;
}
notifyListeners();
print('google sign in ran successfully');
} catch (error) {
throw error;
}
}
Future<FirebaseUser> logout() async {
try {
print('logout ran');
print(currentUser); //THIS RETURNS AN INSTANCE OF USER
_auth.signOut().then( (response) {
print('signout successful');
});
await _googleSignIn.signOut();
print(currentUser); //THIS *ALSO* RETURNS AN INSTANCE OF USER
notifyListeners();
return currentUser;
} catch (error) {
print('an error');
}
}
}
I know there would a silly mistake that I'm unable to catch but it's tiring now!! I've tried other methods that I could find on stackoverflow

Answer 1

May be the future is not complete when you try getting current user, have you tried await instead of then in logout?
Future<FirebaseUser> logout() async {
try {
print('logout ran');
print(currentUser); //THIS RETURNS AN INSTANCE OF USER
await _auth.signOut();
await _googleSignIn.signOut();
//The problem is with this, you need to await this
//print(currentUser); //THIS *ALSO* RETURNS AN INSTANCE OF USER
var user = await currentUser;
print(user); //prints null
notifyListeners();
return currentUser;
} catch (error) {
print('an error');
}
}

Answer 2

I faced similar issue and worked it around by assigning null to currentUser. It works fine now!
case R.id.main_logout_option:
updateUserStatus(getString(R.string.strOffline));
mAuth.signOut();
currentUser = null;
goToLoginActivity();
break;