Direct Debit SEPA UI Component

public class DirectDebitSepaUiComponentFragment extends Fragment
	implements DirectDebitSepaUiComponent {

    private DirectDebitSepaUiComponentFragmentBinding binding;
    
    @Nullable
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater,
			     @Nullable ViewGroup container,
    	                     @Nullable Bundle savedInstanceState) {
        binding = DirectDebitSepaUiComponentFragmentBinding
    		    .inflate(inflater, container, false);
    
        return binding.getRoot();
    }
    
    @Override
    public void onUiComponentCreated(@NonNull DirectDebitSepaUiComponentInteraction interaction) {
        // this method will be called after onViewCreated() and before onStart(),
        // it provides the link to the UI Component interaction, use it to initialize your UI
        binding.payButton.setOnClickListener(v -> interaction.submitPaymentDetails());
    }
    
    @Override
    public void onInputValidation(@NonNull EditText editText, @Nullable String error) {
        // use this callback to show or hide input validation errors
        editText.setError(error);
    }
    
    @Override
    public void onViewVisibilityChange(@NonNull View view, int visibility) {
        // some views might be displayed or hidden depends on the brand
        // or checkout settings, this callback provides the view and required visibility value
        view.setVisibility(visibility);
    }
        
    @NonNull
    @Override
    public EditText getAccountHolderEditText() {
    	return binding.sepaAccountHolder;
    }
    
    @NonNull
    @Override
    public EditText getIbanEditText() {
    	return binding.sepaIban;
    }
}

class DirectDebitSepaUiComponentFragment : Fragment(), DirectDebitSepaUiComponent {

    private var _binding: DirectDebitSepaUiComponentFragmentBinding? = null
    private val binding get() = _binding!!

    override fun onCreateView(
        inflater: LayoutInflater,
        container: ViewGroup?,
        savedInstanceState: Bundle?
    ): View {
        _binding = DirectDebitSepaUiComponentFragmentBinding.inflate(
            inflater, container, false)

        return binding.root
    }

    override fun onDestroyView() {
        super.onDestroyView()

        _binding = null
    }
  
   override fun onUiComponentCreated(interaction: DirectDebitSepaUiComponentInteraction) {
       // this method will be called after onViewCreated() and before onStart(),
       // it provides the link to the UI Component interaction, use it to initialize your UI
        binding.payButton.setOnClickListener { interaction.submitPaymentDetails() }

    }

    override fun onInputValidation(editText: EditText, error: String?) {
        // use this callback to show or hide input validation errors
        editText.error = error
    }

    override fun onViewVisibilityChange(view: View, visibility: Int) {
        // some views might be displayed or hidden depends on the card brand
        // or checkout settings, this callback provides the view and required visibility value
        view.visibility = visibility
    }

    override fun getAccountHolderEditText(): EditText {
        return binding.sepaAccountHolder
    }

    override fun getIbanEditText(): EditText {
        return binding.sepaIban
    }
}