public class ToastModule extends ReactContextBaseJavaModule {
    @ReactMethod
    // Calling module function from ReactJS code and works well
    public void goToRegisterCardView(Callback callback) {
        Intent intent = new Intent(getCurrentActivity(), NativeCardRegistrationActivity.class);
        getCurrentActivity().startActivity(intent); //start Activity successfully
    }
    ...
}

public class NativeCardRegistrationActivity extends AppCompatActivity implements ICardRegistrationCallback {
    @Override
    public void onRegistrationSuccess(CreditCard creditCard) {
        finish();// Exit whole app instead of going back.
    }
    ...
}