firebaseAuth.createUserWithEmailAndPassword(email, pass).addOnCompleteListener( new OnCompleteListener<AuthResult>() { @Override public void onComplete(@NonNull Task<AuthResult> task) { if (task.isSuccessful()) { startActivity(new Intent(SignUpActivity.this, MainActivity.class)); finish(); } else { Snackbar.make(mRlRoot, task.getException().getMessage(), Snackbar.LENGTH_LONG) .show(); } } });