public void login(View viewUsername, View viewPassword) {
        if (!makingLogin) {
            if (adapter.checkAllFields((EditText) viewUsername,
                    (EditText) viewPassword)) {
                makingLogin = true;

                username = ((EditText) viewUsername).getText().toString()
                        .trim();
                password = ((EditText) viewPassword).getText().toString()
                        .trim();

                onLogin();
            }
        }
    }