How to determine if the user is new when signing in after e-mail verification

Question

I'm trying to determine if the user is new or an existing one. When user is registered, e-mail verification is required. When verification is successful, the user can sign in for the first time. When a new user signing in, he must fill a mandatory form with his details, so it's a completely different activity.

I've tried to use use the getAdditionalUserInfo().isNewUser() but it's always returns false. I'm not sure if the e-mail verification somehow messes it up

mAuth.signInWithEmailAndPassword(mEmail, mPassword)
                .addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
    @Override
    public void onComplete(@NonNull Task<AuthResult> task) {
        if (task.isSuccessful()) {
            // Sign in success, update UI with the signed-in user's information
            FirebaseUser user = mAuth.getCurrentUser();
            updateUI(user);
            boolean flag = task.getResult().getAdditionalUserInfo().isNewUser();
            if (flag) {
                Toast.makeText(EmailPasswordActivity.this, "NEW USER.",
                        Toast.LENGTH_SHORT).show();

            } else {
                Toast.makeText(EmailPasswordActivity.this, "EXISTING USER.",
                        Toast.LENGTH_SHORT).show();

            }
        } else {
            // If sign in fails, display a message to the user.
            Log.w(TAG, "signInWithEmail:failure", task.getException());
            Toast.makeText(EmailPasswordActivity.this, "Authentication failed.",
                    Toast.LENGTH_SHORT).show();
            updateUI(null);
        }

        // [START_EXCLUDE]
        if (!task.isSuccessful()) {
            mStatusTextView.setText(R.string.auth_failed);
        }
        hideProgressDialog();
        // [END_EXCLUDE]
    }
});

score 1 · Answer 1 · answered Mar 25 '19 at 14:58

You could either

A) Save a boolean underneath their user profile in your firebase database to determine that they're a new user you can toggle it to true once they've signed in for the first time.

B) Or to save an un-needed web call, you could locally store a boolean in their shared preferences, to do the same thing, and set that to true after the first time they have signed in.

How to determine if the user is new when signing in after e-mail verification

1 Answers1