Check if user is authenticated for the first time in Firebase Google Authentication in Android

Question

I am using Firebase Authentication in an Android application, and I am using Google account authentication as an option to sign in to the application.

How can I know

Answer 1

This may help you and try it:

Correct code location to check Firebase if a user has been created already?

Answer 2

In Firebase UI, JAVA:

 @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        Intent i;


        if (requestCode == RC_SIGN_IN) {
            IdpResponse response = IdpResponse.fromResultIntent(data);

            if (resultCode == RESULT_OK) {


                if(response.isNewUser()){
                Log.d(TAG, "onActivityResult: isNewUser "+response.isNewUser());
} else {

                // Successfully signed in
                }

                // ...
            } else {



//               handle error
            }
        }
    }