private void registerAccount() {


        if (!isEmpty()) {
            if(!toSame()) {
                if(!checkName()) {
                    if(!checkEmail()) {
                            mDatabaseHelper.addUser(editTextNameRegistration.getText().toString(), editTextSurnameRegistration.getText().toString(),editTextLoginRegistration.getText().toString(), editTextPasswordRegistration.getText().toString(), editTextPin.getText().toString(), editTextMailRegistration.getText().toString());
                            Toast.makeText(this, "Stworzono konto", Toast.LENGTH_SHORT).show();
                            Intent intent = new Intent(OpenRegistration.this, MainActivity.class);
                            startActivity(intent);

                    }else{
                            Toast.makeText(this, "Mail już użyty", Toast.LENGTH_SHORT).show();}

                } else {
                        Toast.makeText(this, "Login już użyty", Toast.LENGTH_SHORT).show();}

            } else {
                Toast.makeText(this, "Różne hasła", Toast.LENGTH_SHORT).show();}

        } else {
            Toast.makeText(this, "Puste pola", Toast.LENGTH_SHORT).show();}

    }