问我的回收器视图中的片段适配器getitem count显示为零，并且不显示layout.but中的值。我将数据从api添加到模型类。

EN

public class Premiums extends Fragment {
private RecyclerView recyclerPremium;
private RecyclerView.LayoutManager mLayoutManager;
private List<FeaturedAddDetails> featuredAddDetailsList = new ArrayList<>();
private List<PremiumDetails> premiumDetailslist = new ArrayList<>();
private NewestAdapter newestAdapter;
private PremiumAdapter premiumAdapter;
private String jsonResponse;
private PremiumDetails premiumDetails;
private JSONObject jsonobject;

public Premiums() {
}



@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    View mainView = inflater.inflate(R.layout.premium_fragment, container, false);
    recyclerPremium = (RecyclerView) mainView.findViewById(R.id.recycler_premium);
    premiumAdd();
    premiumAdapter = new PremiumAdapter(getActivity().getApplicationContext(), premiumDetailslist);
    recyclerPremium.setAdapter(premiumAdapter);
    return mainView;
}

@Override
public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
    super.onViewCreated(view, savedInstanceState);
    mLayoutManager = new LinearLayoutManager(getContext(), LinearLayoutManager.VERTICAL, false);
    recyclerPremium.setLayoutManager(mLayoutManager);
    recyclerPremium.setHasFixedSize(true);
}

private void premiumAdd() {
    PremiumRequestHandler premiumHandler = new PremiumRequestHandler("premiumADD");
    premiumHandler.executeAsStringRequest(new Response.Listener<String>() {
        @Override
        public void onResponse(String response) {
            Log.e("response", response);

            JSONArray jsonarray = null;
            try {
                jsonarray = new JSONArray(response);

            } catch (JSONException e) {
                e.printStackTrace();
            }
            for (int i = 0; i < jsonarray.length(); i++) {
                try {
                    jsonobject = jsonarray.getJSONObject(i);
                    Log.e("id", String.valueOf(jsonobject.getInt("id")));
                    premiumDetails = new PremiumDetails(jsonobject.getInt("id"),
                            jsonobject.getInt("userid"),
                            jsonobject.getInt("mobile"),
                            jsonobject.getInt("cityid"),
                            jsonobject.getInt("price"),
                            jsonobject.getInt("comments"),
                            jsonobject.getInt("created"),
                            jsonobject.getInt("categoryid"),
                            jsonobject.getInt("MainCategoryID"),
                            jsonobject.getInt("views"),
                            jsonobject.getInt("ImageCount"),
                            jsonobject.getInt("storeid"),
                            jsonobject.getString("title"),
                            jsonobject.getString("default_photo"),
                            jsonobject.getString("CityName"),
                            jsonobject.getString("CategoryName"),
                            jsonobject.getString("currency"),
                            jsonobject.getString("description"));
                    premiumDetailslist.add(premiumDetails);
                    premiumAdapter.setPremiumDetails(premiumDetailslist);
                } catch (JSONException e) {
                    e.printStackTrace();
                }
            }



        }
    }, new BaseRequest.ErrorResponseCallback() {
        @Override
        public void onError(Exception exception) {

        }
    });


}

    public class PremiumAdapter extends RecyclerView.Adapter<PremiumAdapter.MyViewHolderPremium> {
private List<PremiumDetails> premiumDetailsList;
private ImageLoader imageLoader;
private Context context;

public PremiumAdapter(Context context, List<PremiumDetails> premiumDetailsList) {
    this.premiumDetailsList = premiumDetailsList;
    this.context = context;
    notifyDataSetChanged();

}
public void setPremiumDetails(List<PremiumDetails> premiumDetailsList) {
    this.premiumDetailsList = premiumDetailsList;
    notifyDataSetChanged();
}


public class MyViewHolderPremium extends RecyclerView.ViewHolder  {
    private TextView txtTitle,txtDescription,txtCityName,txtPrice,txtCategory,txtHour,txtPhotoNo;
    private NetworkImageView imgPhoto;
    public MyViewHolderPremium(View itemView) {
        super(itemView);
        txtTitle = (TextView)itemView.findViewById(R.id.txt_title_fad);
        txtDescription = (TextView)itemView.findViewById(R.id.description_fad);
        txtCityName = (TextView)itemView.findViewById(R.id.city_name_fad);
        txtPrice = (TextView)itemView.findViewById(R.id.price_fad);
        txtCategory = (TextView)itemView.findViewById(R.id.category_fad);
        txtHour = (TextView)itemView.findViewById(R.id.hours_fad);
        txtPhotoNo = (TextView)itemView.findViewById(R.id.txt_photo_no_fad);
        imgPhoto=(NetworkImageView)itemView.findViewById(R.id.img_photo_lod_fad);
    }
}

@Override
public MyViewHolderPremium onCreateViewHolder(ViewGroup parent, int viewType) {
    View itemView = LayoutInflater.from(parent.getContext()).inflate(R.layout.featured_ad_adapter_layout,parent,false);
    final MyViewHolderPremium myViewHolderPremium = new MyViewHolderPremium(itemView);
    return myViewHolderPremium;
}

@Override
public void onBindViewHolder(MyViewHolderPremium holder, int position) {
    PremiumDetails premiumDetails = premiumDetailsList.get(position);
    holder.txtTitle.setText(premiumDetails.getTitle());
    holder.txtDescription.setText(premiumDetails.getDescription());
    holder.txtCityName.setText(premiumDetails.getCityName());
    holder.txtPrice.setText(Integer.toString(premiumDetails.getPrice()));
    holder.txtCategory.setText(premiumDetails.getCategoryName());
    holder.txtHour.setText(Integer.toString(premiumDetails.getCreated()));
    holder.txtPhotoNo.setText(Integer.toString(premiumDetails.getImageCount())+" photos " );
    try {
        imageLoader= VolleyHandler.getImageLoader();
    } catch (Exception e) {
        e.printStackTrace();
    }
    //imageLoader = CustomVolleyRequest.getInstance(context).getImageLoader();
    //imageLoader.get(featuredAddDetails.getDefault_photo(), ImageLoader.getImageListener(holder.imgPhoto, R.mipmap.ic_launcher, android.R.drawable.ic_dialog_alert));


    holder.imgPhoto.setImageUrl(premiumDetails.getDefault_photo(),imageLoader);
}
@Override
public int getItemCount() {
    Log.e("size", String.valueOf(premiumDetailsList.size()));
    return premiumDetailsList.size();
}}