Как устранить исключение «Незаконное государство» для добавления фрагмента дубликата

Question

Я выполняю действие с табулатом (используя ViewPager и FragmentPagerAdapter). Каждая из вкладок представляет собой отдельные фрагменты. На одной из вкладок (CheckInNewRecipient) есть два фрагмента: один внизу для отображения списка контактов для выбора и один сверху для контактов, которые были выбраны.

Возникает недопустимое исключение состояния, при котором фрагмент вкладки CheckInNewRecipient добавляется дважды. Этот фрагмент создается (onAttach и onCreate) один раз при запуске табуляции. Когда я начинаю заполнять подфрагменты внутри него, он добавляет два подфрагмента и затем пытается снова загрузить основной фрагмент. В моем коде нет ничего, что говорило бы о перезагрузке этого фрагмента, кроме заполнения обоих субфрагментов.

Прикреплено недопустимое исключение состояния из logcat

2020-04-07 07:49:23.819 11883-11883/com.grgapps.checkingin E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.grgapps.checkingin, PID: 11883
    java.lang.IllegalStateException: Fragment already added: CheckInNewRecipients{722367} (1cda137a-bd2a-40b3-b65d-e4e3ddd4eafd) id=0x7f09006d android:switcher:2131296365:2}
        at androidx.fragment.app.FragmentManager.addFragment(FragmentManager.java:1628)
        at androidx.fragment.app.BackStackRecord.executeOps(BackStackRecord.java:405)
        at androidx.fragment.app.FragmentManager.executeOps(FragmentManager.java:2333)
        at androidx.fragment.app.FragmentManager.executeOpsTogether(FragmentManager.java:2120)
        at androidx.fragment.app.FragmentManager.removeRedundantOperationsAndExecute(FragmentManager.java:2075)
        at androidx.fragment.app.FragmentManager.execPendingActions(FragmentManager.java:1977)
        at androidx.fragment.app.FragmentManager$4.run(FragmentManager.java:417)
        at android.os.Handler.handleCallback(Handler.java:751)
        at android.os.Handler.dispatchMessage(Handler.java:95)
        at android.os.Looper.loop(Looper.java:154)
        at android.app.ActivityThread.main(ActivityThread.java:6077)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:866)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:756)

Ниже приведен onCreateView во фрагменте, являющемся одной из вкладок.

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        Log.i(TAG, "CheckInNewRecipients onCreateView: ");
        context = getActivity();

        FragmentTransaction transaction = getChildFragmentManager().beginTransaction();

        ContactsSelectionListDisplay contactsSelectionListDisplay = new
                ContactsSelectionListDisplay(R.layout.activity_check_in_new, getActivity());
                Log.i(TAG, "CheckInNewRecipients onCreateView: initializing ContactsSelectionAndDisplay ");

        ContactsFilterAndDisplay contactsFilterAndDisplay =
                new ContactsFilterAndDisplay(R.layout.activity_check_in_new, getActivity());
                Log.i(TAG, "CheckInNewRecipients onCreateView: initializing ContactsFilterAndDisplay ");


        transaction.add(R.id.check_in_recipient_selection_list_recycler_view,contactsSelectionListDisplay).commit();
                Log.i(TAG, "CheckInNewRecipients onCreateView: after add of ContactsSelectionListDisplay" + this.context);

        transaction.add(R.id.check_in_recipient_contacts_list_recycler_view, contactsFilterAndDisplay).commit();
                Log.i(TAG, "CheckInNewRecipients onCreateView: after transaction.add statements");


        return inflater.inflate(R.layout.fragment_check_in_new_recipients, container, false);

    }

Это макет фрагмента для CheckInNewRecipients

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    tools:context=".CheckInNewRecipients">

    <!-- TODO: Update blank fragment layout -->
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">

    <include layout="@layout/fragment_contacts_selection_list_display" />

    <include layout="@layout/fragment_contacts_filter_and_display" />

    </LinearLayout>

</FrameLayout>

Ниже приведено первое включение из приведенного выше макета фрагмента.

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="200dp"
    tools:context=".ContactsSelectionListDisplay">

    <!-- TODO: Update blank fragment layout -->

    <androidx.recyclerview.widget.RecyclerView
        android:id="@+id/check_in_recipient_selection_list_recycler_view"
        android:layout_width="match_parent"
        android:layout_height="200dp"
        android:divider="#467FD7"
        android:dividerHeight="10dp"
        tools:listitem="@layout/recycler_view_check_in_recipient_selected_list"/>


</FrameLayout>

Ниже приводится второе включение из макета фрагмента

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="350dp"
    tools:context=".ContactsFilterAndDisplay">

    <!-- TODO: Update blank fragment layout -->

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">

    <androidx.constraintlayout.widget.ConstraintLayout
        android:layout_width="match_parent"
        android:layout_height="108dp">



        <RadioGroup
            android:layout_width="wrap_content"
            android:layout_height="55dp"
            android:orientation="horizontal">

        </RadioGroup>

        <RadioButton
            android:id="@+id/radio_all_contacts"
            android:layout_width="80dp"
            android:layout_height="55dp"
            android:layout_marginTop="44dp"
            android:layout_marginEnd="328dp"
            android:buttonTint="#2196F3"
            android:drawableTint="#2196F3"
            android:onClick="onRadioButtonClicked"
            android:text="@string/radio_contact_filter_all"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintTop_toTopOf="parent" />

        <RadioButton
            android:id="@+id/radio_app_users"
            android:layout_width="100dp"
            android:layout_height="55dp"
            android:layout_marginTop="44dp"
            android:layout_marginEnd="228dp"
            android:buttonTint="#2196F3"
            android:drawableTint="#2196F3"
            android:onClick="onRadioButtonClickedAppUsers"
            android:text="@string/radio_contact_filter_app_users"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintTop_toTopOf="parent" />

        <RadioButton
            android:id="@+id/radio_by_group"
            android:layout_width="100dp"
            android:layout_height="55dp"
            android:layout_marginTop="44dp"
            android:layout_marginEnd="120dp"
            android:buttonTint="#2196F3"
            android:drawableTint="#2196F3"
            android:onClick="onRadioButtonClickedByGroup"
            android:text="@string/radio_contact_filter_by_group"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintTop_toTopOf="parent" />

        <RadioButton
            android:id="@+id/radio_filter_search"
            android:layout_width="100dp"
            android:layout_height="55dp"
            android:layout_marginStart="304dp"
            android:layout_marginTop="44dp"
            android:buttonTint="#2196F3"
            android:drawableTint="#2196F3"
            android:onClick="onRadioButtonClickedSearch"
            android:text="@string/radio_contact_filter_search"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintHorizontal_bias="0.0"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent" />

        <TextView
            android:id="@+id/textView14"
            android:layout_width="match_parent"
            android:layout_height="30dp"
            android:text="@string/title_contacts_filter"
             />
    </androidx.constraintlayout.widget.ConstraintLayout>


        <androidx.recyclerview.widget.RecyclerView
            android:id="@+id/check_in_recipient_contacts_list_recycler_view"
            android:layout_width="match_parent"
            android:layout_height="250dp"
            android:divider="#467FD7"
            android:dividerHeight="10dp"
            tools:listitem="@layout/recycler_view_check_in_contacts_list" />
    </LinearLayout>

</FrameLayout>

Ниже приведен полный код CheckInNewRecipients

package com.grgapps.checkingin;

import android.content.Context;
import android.net.Uri;
import android.os.Bundle;

import androidx.fragment.app.Fragment;
import androidx.fragment.app.FragmentManager;
import androidx.fragment.app.FragmentTransaction;

import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import javax.security.auth.login.LoginException;

import static android.view.View.getDefaultSize;
import static androidx.constraintlayout.widget.Constraints.TAG;

/**
 * A simple {@link Fragment} subclass.
 * Activities that contain this fragment must implement the
 * {@link CheckInNewRecipients.OnFragmentInteractionListener} interface
 * to handle interaction events.
 * Use the {@link CheckInNewRecipients#newInstance} factory method to
 * create an instance of this fragment.
 */
public class CheckInNewRecipients extends Fragment {
        // TODO: Rename parameter arguments, choose names that match
    // the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
    private static final String ARG_PARAM1 = "param1";
    private static final String ARG_PARAM2 = "param2";

    // TODO: Rename and change types of parameters
    private String mParam1;
    private String mParam2;
    private Context context;
    private OnFragmentInteractionListener mListener;

    public CheckInNewRecipients() {
        // Required empty public constructor
        Log.i(TAG, "CheckInNewRecipients: ");
    }

    /**
     * Use this factory method to create a new instance of
     * this fragment using the provided parameters.
     *
     * @param param1 Parameter 1.
     * @param param2 Parameter 2.
     * @return A new instance of fragment CheckInNewRecipients.
     */
    // TODO: Rename and change types and number of parameters
    public static CheckInNewRecipients newInstance(String param1, String param2) {
        CheckInNewRecipients fragment = new CheckInNewRecipients();
        Log.i(TAG, "CheckInNewRecipients newInstance: ");
        Bundle args = new Bundle();
        args.putString(ARG_PARAM1, param1);
        args.putString(ARG_PARAM2, param2);
        fragment.setArguments(args);
        return fragment;

    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        Log.i(TAG, "CheckInNewRecipients onCreate: ");
        if (getArguments() != null) {
            mParam1 = getArguments().getString(ARG_PARAM1);
            mParam2 = getArguments().getString(ARG_PARAM2);
        }
        Log.i(TAG, "CheckInNewRecipients onCreate: On Create Completed");
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        Log.i(TAG, "CheckInNewRecipients onCreateView: ");
        context = getActivity();

        FragmentTransaction transaction = getChildFragmentManager().beginTransaction();

        ContactsSelectionListDisplay contactsSelectionListDisplay = new
                ContactsSelectionListDisplay(R.layout.activity_check_in_new, getActivity());
                Log.i(TAG, "CheckInNewRecipients onCreateView: initializing ContactsSelectionAndDisplay ");

        ContactsFilterAndDisplay contactsFilterAndDisplay =
                new ContactsFilterAndDisplay(R.layout.activity_check_in_new, getActivity());
                Log.i(TAG, "CheckInNewRecipients onCreateView: initializing ContactsFilterAndDisplay ");


        transaction.add(R.id.check_in_recipient_selection_list_recycler_view,contactsSelectionListDisplay).commit();
                Log.i(TAG, "CheckInNewRecipients onCreateView: after add of ContactsSelectionListDisplay" + this.context);

        transaction.add(R.id.check_in_recipient_contacts_list_recycler_view, contactsFilterAndDisplay).commit();
                Log.i(TAG, "CheckInNewRecipients onCreateView: after transaction.add statements");


        return inflater.inflate(R.layout.fragment_check_in_new_recipients, container, false);

    }

    // TODO: Rename method, update argument and hook method into UI event
    public void onButtonPressed(Uri uri) {
        Log.i(TAG, "CheckInNewRecipients onButtonPressed: ");
        if (mListener != null) {
            mListener.onFragmentInteraction(uri);
        }
    }

    @Override
    public void onAttach(Context context) {
        super.onAttach(context);
        Log.i(TAG, "CheckInNewRecipients onAttach: ");
        if (context instanceof OnFragmentInteractionListener) {
            mListener = (OnFragmentInteractionListener) context;
        } else {
            throw new RuntimeException(context.toString()
                    + " must implement OnFragmentInteractionListener");
        }
        Log.i(TAG, "CheckInNewRecipients onAttach: On Attach Completed");
    }

    @Override
    public void onDetach() {
        super.onDetach();
        mListener = null;
    }

    /**
     * This interface must be implemented by activities that contain this
     * fragment to allow an interaction in this fragment to be communicated
     * to the activity and potentially other fragments contained in that
     * activity.
     * <p>
     * See the Android Training lesson <a href=
     * "http://developer.android.com/training/basics/fragments/communicating.html"
     * >Communicating with Other Fragments</a> for more information.
     */
    public interface OnFragmentInteractionListener {
        // TODO: Update argument type and name
        void onFragmentInteraction(Uri uri);
    }
}
// FragmentManager transaction = getActivity().getSupportFragmentManager();
//transaction.beginTransaction().add(R.id.check_in_recipient_selection_list_recycler_view,
//       contactsSelectionListDisplay).commit();

//transaction.beginTransaction().add(R.id.check_in_recipient_contacts_list_recycler_view,
//        contactsFilterAndDisplay).commit();

Ниже приведен код java одного из фрагментов. Второй фрагмент отражает первый.

package com.grgapps.checkingin;

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.net.Uri;
import android.os.Bundle;

import androidx.annotation.Nullable;
import androidx.core.content.ContextCompat;
import androidx.fragment.app.Fragment;
import androidx.lifecycle.Observer;
import androidx.lifecycle.ViewModelProvider;
import androidx.recyclerview.widget.DividerItemDecoration;
import androidx.recyclerview.widget.ItemTouchHelper;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;

import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

import com.google.android.material.snackbar.Snackbar;

import java.util.List;
import java.util.Objects;

import static androidx.constraintlayout.widget.Constraints.TAG;


/**
 * A simple {@link Fragment} subclass.
 * Activities that contain this fragment must implement the
 * {@link ContactsSelectionListDisplay.OnFragmentInteractionListener} interface
 * to handle interaction events.
 * Use the {@link ContactsSelectionListDisplay#newInstance} factory method to
 * create an instance of this fragment.
 */
public class ContactsSelectionListDisplay extends Fragment {
    // TODO: Rename parameter arguments, choose names that match
    // the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
    private static final String ARG_PARAM1 = "param1";
    private static final String ARG_PARAM2 = "param2";

    // TODO: Rename and change types of parameters
    private String mParam1;
    private String mParam2;
    private RecyclerView recyclerView;
    private RecyclerView.Adapter checkInContactSelectionListAdapter;
    //private RecyclerView.LayoutManager layoutManager;
    private MainViewModel mViewModel;
    private CheckInContactsSelectionListDisplayAdapter mAdapter;
    private MainViewModelProviderFactory viewModelFactory;
    private TextView checkInContactsPhotoThumbnail;
    private TextView checkInContactsDisplayLastName;
    private TextView checkInContactsDisplayFirstName;
    private TextView checkInContactsListGroups;
    private Context context;
    private ContactsSelectionListDisplay.OnFragmentInteractionListener mListener;

    public ContactsSelectionListDisplay(int layoutID, Context context) {
        // Required empty public constructor
        Log.i(TAG, "ContactsSelectionListDisplay: ");
    }

    /**
     * Use this factory method to create a new instance of
     * this fragment using the provided parameters.
     *
     //* @param param1 Parameter 1.
     //* @param param2 Parameter 2.
     * @return A new instance of fragment ContactsSelectionLIstDisplay.
     */
    // TODO: Rename and change types and number of parameters
    public static ContactsSelectionListDisplay newInstance(int layoutid, Context context) {
        ContactsSelectionListDisplay fragment =
                new ContactsSelectionListDisplay(R.layout.activity_check_in_new, context);
        Bundle args = new Bundle();
        //args.putString(ARG_PARAM1, param1);
        //args.putString(ARG_PARAM2, param2);
        fragment.setArguments(args);
        Log.i(TAG, "ContactsSelectionListDisplay newInstance: ");
        return fragment;
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        Log.i(TAG, "ContactsSelectionListDisplay onCreate: ");
        if (getArguments() != null) {
            mParam1 = getArguments().getString(ARG_PARAM1);
            mParam2 = getArguments().getString(ARG_PARAM2);
        }
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        Log.i(TAG, "ContactsSelectionListDisplay onCreateView: "+ context);
        viewModelFactory = new MainViewModelProviderFactory(this.context);
        mViewModel = new ViewModelProvider(this, viewModelFactory).get(MainViewModel.class);


        mAdapter = new CheckInContactsSelectionListDisplayAdapter(R.layout.fragment_contacts_selection_list_display, context);
        RecyclerView recyclerView = getActivity().findViewById(R.id.check_in_recipient_selection_list_recycler_view);
        recyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
        recyclerView.setAdapter(mAdapter);
        recyclerView.addItemDecoration(new DividerItemDecoration(getContext(),
                LinearLayoutManager.VERTICAL));
        return inflater.inflate(R.layout.fragment_contacts_selection_list_display, container, false);
    }
    @Override
    public void onAttach(Context context) {

        super.onAttach(context);

        Log.i(TAG, "ContactsSelectionListDisplay : OnAttach");

        viewModelFactory = new MainViewModelProviderFactory(context.getApplicationContext());
        mViewModel = new ViewModelProvider(this, viewModelFactory).get(MainViewModel.class);


    }
    // TODO: Rename method, update argument and hook method into UI event
    public void onButtonPressed(Uri uri) {
        if (mListener != null) {
            mListener.onFragmentInteraction(uri);
        }
    }
    @Override
    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);

        Log.i(TAG, "ContactsSelectionListDisplay: On Activity Created");

        context = this.getContext();
        mViewModel = new ViewModelProvider(this, viewModelFactory).get(MainViewModel.class);

        mAdapter = new CheckInContactsSelectionListDisplayAdapter(R.layout.fragment_contacts_selection_list_display, context);
        RecyclerView recyclerView = getView().findViewById(R.id.check_in_recipient_selection_list_recycler_view);
        recyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
        recyclerView.setAdapter(mAdapter);
        recyclerView.addItemDecoration(new DividerItemDecoration(getContext(),
                LinearLayoutManager.VERTICAL));

        observerSetup();
        Log.i(TAG, "ContactsSelectionListDisplay onActivityCreated: Observer SetUp Complete");
        ItemTouchHelper.SimpleCallback callback = new
                ItemTouchHelper.SimpleCallback(0, ItemTouchHelper.RIGHT | ItemTouchHelper.LEFT) {


                    public boolean onMove(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder, RecyclerView.ViewHolder target) {
                        return false;
                    }

                    @Override
                    public void onSwiped(RecyclerView.ViewHolder viewHolder, int direction) {

                        int position = viewHolder.getAdapterPosition();

                        mAdapter.deleteItem(position);
                        Snackbar snackbar = Snackbar.make(viewHolder.itemView, "Item " + (direction == ItemTouchHelper.RIGHT ? "deleted" : "archived") + ".", Snackbar.LENGTH_LONG);
                        snackbar.setDuration(3000);
                        snackbar.setAction(android.R.string.cancel, new View.OnClickListener() {

                            @Override
                            public void onClick(View view) {
                                mAdapter.undoDelete();
                            }
                        });
                        snackbar.show();
                    }
                    @Override
                    public void onChildDraw (Canvas c, RecyclerView
                            recyclerView, RecyclerView.ViewHolder viewHolder, float dX, float dY,
                                             int actionState, boolean isCurrentlyActive){
                        new RecyclerViewSwipeDecorator.Builder(c, recyclerView, viewHolder, dX, dY, actionState, isCurrentlyActive)
                                .addSwipeLeftBackgroundColor(ContextCompat.getColor(getContext(), R.color.recycler_view_item_swipe_left_background))
                                .addSwipeLeftActionIcon(R.drawable.ic_archive_white_24dp)
                                .addSwipeRightBackgroundColor(ContextCompat.getColor(getContext(), R.color.recycler_view_item_swipe_right_background))
                                .addSwipeRightActionIcon(R.drawable.ic_delete_white_24dp)
                                .addSwipeRightLabel(getString(R.string.action_delete))
                                .setSwipeRightLabelColor(Color.WHITE)
                                .addSwipeLeftLabel(getString(R.string.action_archive))
                                .setSwipeLeftLabelColor(Color.WHITE)
                                .create()
                                .decorate();
                        super.onChildDraw(c, recyclerView, viewHolder, dX, dY, actionState, isCurrentlyActive);
                    }
                };

        ItemTouchHelper itemTouchHelper = new ItemTouchHelper(callback);
        itemTouchHelper.attachToRecyclerView(recyclerView);

        CustomToast newtoast = new CustomToast(getContext(),"you clicked on this" );
        newtoast.show();
        Log.i(TAG, "ContactsSelectionListDisplay onActivityCreated: Completed OnActivityCreated");
    }


    @Override
    public void onDetach() {
        super.onDetach();
        mListener = null;
    }

    /**
     * This interface must be implemented by activities that contain this
     * fragment to allow an interaction in this fragment to be communicated
     * to the activity and potentially other fragments contained in that
     * activity.
     * <p>
     * See the Android Training lesson <a href=
     * "http://developer.android.com/training/basics/fragments/communicating.html"
     * >Communicating with Other Fragments</a> for more information.
     */
    public interface OnFragmentInteractionListener {
        // TODO: Update argument type and name
        void onFragmentInteraction(Uri uri);
    }
    private void observerSetup() {
        Log.i(TAG, "ContactsSelectionListDisplay observerSetup:");
        checkInContactsPhotoThumbnail = getView().findViewById(R.id.checkInRecipientSelectedPhotoThumbnail);
        checkInContactsDisplayLastName = getView().findViewById(R.id.checkInRecipientSelectedLastName);
        checkInContactsDisplayFirstName = getView().findViewById(R.id.checkInRecipientSelectedFirstName);
        checkInContactsListGroups = getView().findViewById(R.id.checkInRecipientSelectedGroups);
        if(mViewModel.getSelectionListContacts() != null)
            Log.i(TAG, "ContactsSelectionListDisplay getSelectionListContacts != null observerSetup: ");
            Objects.requireNonNull(mViewModel.getSelectionListContacts()).observe(getViewLifecycleOwner(),
                new Observer<List<ContactTable>>() {
                @Override
                public void onChanged(@Nullable final List<ContactTable> allSelectionListContacts) {
                    Log.i(TAG, "ContactsSelectionListDisplay observer setup onChanged: ");
                    mAdapter.setContactSelectionList(allSelectionListContacts);
                }
            });

    }
}