Firebase Android onAuthStateChanged called twice

Question

I\'ve start working with new Firebase SDK.

When I\'m doing user login, I\'m onAuthStateChanged method is being called twice with same state (etc. user sign in).

Answer 1

My workaround is to use a Boolean declared globally to flag if onAuthStateChanged has need called before.

private Boolean authFlag = false;
 mAuthListener = new FirebaseAuth.AuthStateListener() {
        @Override
        public void onAuthStateChanged(@NonNull final FirebaseAuth firebaseAuth) {
            if (firebaseAuth.getCurrentUser() != null) {
                if(authFlag== false) {
                    // Task to perform once
                    authFlag=true;
                }
            }
        }
    };