数据未显示，但AdMob显示在RecyclerView上

Im trying to show list data on recyclerview and add AdMob after 3 data showing. i have follow Is there any way to Show Google Admob in Android Recycler View this link because its almost same on my coding but im use retrofit.

但是我的结果仅显示了AdMob测试行。它没有显示我的数据“名称”。

这是我的MainActivity

public class Nilai extends AppCompatActivity implements NilaiView {

    RecyclerView recyclerView;
    SwipeRefreshLayout swipeRefresh;

    NilaiPresenter presenter;
    RecyclerViewAdopter adapter;
    List<modelNilai> score;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_nilai);

        MobileAds.initialize(this, "ID_APP");

        recyclerView = findViewById(R.id.recyclerView);
        swipeRefresh = findViewById(R.id.swipe_refresh);

        recyclerView.setLayoutManager(new LinearLayoutManager(this));

        presenter = new NilaiPresenter(this);
        presenter.getNilai();

        swipeRefresh.setOnRefreshListener(
                () -> presenter.getNilai()
        );

    }

    @Override
    public void showLoading() {
        swipeRefresh.setRefreshing(true);
    }

    @Override
    public void hideLoading() {
        swipeRefresh.setRefreshing(false);
    }

    @Override
    public void onGetNilai(List<modelNilai> scores) {
        adapter = new RecyclerViewAdopter(Nilai.this, scores);
        adapter.notifyDataSetChanged();
        recyclerView.setItemAnimator(new DefaultItemAnimator());
        recyclerView.setAdapter(adapter);

        score = scores;

        for (int i = 0; i <= scores.size(); i += 3)
        {
            modelNilai myString2 = new modelNilai();
            myString.setId(i);
            scores.add(i,myString);
        }

    }

}

我的适配器

public class RecyclerViewAdopter extends RecyclerView.Adapter<RecyclerView.ViewHolder>{

    private Context mContext;
    private List<modelNilai> mList;

    public RecyclerViewAdopter(Context mContext, List<modelNilai> mList) {
        this.mList = mList;
        this.mContext = mContext;
    }

    public static class MyViewHolder extends RecyclerView.ViewHolder {
        public TextView name;
        public MyViewHolder(View view) {
            super(view);
            name = view.findViewById(R.id.namaSoal);
        }
    }

    public static class ViewHolderAdMob extends RecyclerView.ViewHolder {
        public AdView mAdView;
        public ViewHolderAdMob(View view) {
            super(view);
            mAdView = view.findViewById(R.id.adView);

            AdRequest adRequest = new AdRequest.Builder()
                    .addTestDevice("CEE26DC1A5BBF0E603B08A5460483046")
                    .build();
            mAdView.loadAd(adRequest);
        }
    }

    @Override
    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        RecyclerView.ViewHolder viewHolder = null;
        LayoutInflater inflater = LayoutInflater.from(parent.getContext());
        switch(viewType){
            case 1:
            {
                View v = inflater.inflate(R.layout.list_nilai_ad, parent, false);
                viewHolder = new MyViewHolder(v);
                break;
            }
            case 2:
            default:
            {
                View v = inflater.inflate(R.layout.banner_ad_row, parent, false);
                viewHolder = new ViewHolderAdMob(v);
                break;
            }
        }
        return viewHolder;
    }

    @Override
    public void onBindViewHolder(final RecyclerView.ViewHolder holder, final int position) {

        modelNilai model = mList.get(holder.getAdapterPosition());

        switch(holder.getItemViewType()){
            case 1:{
                MyViewHolder viewHolder = (MyViewHolder) holder;
                viewHolder.name.setText(model.getName());
                break;
            }
            case 2:{
                break;
            }
        }
    }

    @Override
    public int getItemViewType(int position)
    {
        return mList.get(position).getId();
    }

    @Override
    public int getItemCount() {
        return mList.size();
    }
}

我的主持人

public class NilaiPresenter {
    private NilaiView view;

    public NilaiPresenter(NilaiView view) {
        this.view = view;
    }

    void getNilai() {
        view.showLoading();

        ApiInterface apiInterface = ApiClient.getApiClient().create(ApiInterface.class);
        Call<List<modelNilai>> call = apiInterface.getNilai();
        call.enqueue(new Callback<List<modelNilai>>() {
            @Override
            public void onResponse(@NonNull Call<List<modelNilai>> call, @NonNull Response<List<modelNilai>> response) {
                view.hideLoading();
                if (response.isSuccessful() && response.body() != null) {
                    view.onGetNilai(response.body());
                }

            }

            @Override
            public void onFailure(@NonNull Call<List<modelNilai>> call, @NonNull Throwable t) {
                view.hideLoading();
                view.onRequestError(t.getLocalizedMessage());

            }
        });
    }
}

我的模特班

public class modelNilai {
    @Expose
    @SerializedName("id") private int id_nilai;
    @Expose
    @SerializedName("name") private String name;

    public int getId() {
        return id;
    }    
    public void setId(int id) {
        this.id = id;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
}

和我的视图界面

public interface NilaiView {
    void showLoading();
    void hideLoading();
    void onGetNilai(List<modelNilai> scores);
}

电话结果

应该显示为3个名称行和1个admob，然后每3行重复一次，然后显示1个admob。