如何在此代码中的Retrofit中访问此子阵列？

Question

我总是在Retrofit初学者。我试图在使用翻新注释时作出以下响应的对象。

响应：

{"status":"1", 
       "data":[{"title":"hb","rate":"12", 
               "pic":[{"file_name":"x"},{"file_name":"y"}]} 
        {"title":"hk","rate":"15", 
               "pic":[{"file_name":"x"},{"file_name":"y"}]}            
        {"title":"hc","rate":"18", 
               "pic":[{"file_name":"x"},{"file_name":"y"}]} 

        ]      
}     

对于我写代码在再循环器视图来显示它。 通过编写下面的代码我能够获取数据对象的元素，但不能访问响应的pic对象的元素。 我应该在这段代码中编辑什么来访问图片对象的元素？

Book_Hotel.java：

public class Book_Hotel extends Fragment { 
    private RecyclerView recyclerView; 
    private RecyclerView.LayoutManager layoutManager; 
    private Recycler_Adapter adapter; 
    private Api_Contact con; 
    private Api_Interface apiInterface; 
    @Nullable 
    @Override 
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) { 
     View view = inflater.inflate(R.layout.fragment_book__hotel, container, false); 
     getActivity().setTitle("Room List"); 
     recyclerView = (RecyclerView) view.findViewById(R.id.recycler); 
     layoutManager = new LinearLayoutManager(getActivity()); 
     recyclerView.setLayoutManager(layoutManager); 
     recyclerView.setHasFixedSize(true); 
     apiInterface = Api_Client.getApiClient().create(Api_Interface.class); 
     Call<Api_Contact> call = apiInterface.getContacts(); 
     call.enqueue(new Callback<Api_Contact>() { 
      @Override 
      public void onResponse(Call<Api_Contact> call, Response<Api_Contact> response) { 
       con = response.body(); 
       Log.e("data", con.getData().toString()); 
       adapter = new Recycler_Adapter(getActivity(), con.getData()); 
       recyclerView.setAdapter(adapter); 

      } 
      @Override 
      public void onFailure(Call<Api_Contact> call, Throwable t) { 
       Log.e("fail", t.toString()); 

       if (t.toString().contains(" Unable to resolve")) { 
        Toast.makeText(getActivity(), "Internet connect prob", Toast.LENGTH_SHORT).show(); 
       } 
      } 
     }); 
     return view; 
    } 
} 

Api_Client.java：

public class Api_Client { 
    public static final String BASE_URL="xxxxxxxxxxxxxxxxxxxxxxxxxxx"; 
    public static Retrofit retrofit = null; 
    public static Retrofit getApiClient(){ 
     if(retrofit==null){ 
      retrofit=new Retrofit.Builder().baseUrl(BASE_URL).addConverterFactory(GsonConverterFactory.create()).build(); 
      Log.e("in client",retrofit.toString()); 
     } 
     return retrofit; 
    } 
} 

Api_Contact.java：

public class Api_Contact { 
    @SerializedName("status") 
    private String Status; 
    @SerializedName("data") 
    private List<data> Data; 
    public String getStatus() { 
     return Status; 
    } 

    public List<data> getData() { 
     Log.e("in get data of contact", Data.toString()); 
     return Data; 
    } 
} 

Api_Interface.java：

public interface Api_Interface{ 
    @GET("xxxxxxx") 
    Call<Api_Contact> getContacts(); 
} 

Recycler_Adapter.java：

public class Recycler_Adapter extends RecyclerView.Adapter<Recycler_Adapter.MyViewHolder> { 
    private List<data> data; 
    Context context; 
    public Recycler_Adapter(Context context, List<data> contacts) { 
     this.context = context; 
     this.data = contacts; 
    } 
    @Override 
    public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { 
     View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.roomlist_row, parent, false); 
     return new MyViewHolder(view); 
    } 
    @Override 
    public void onBindViewHolder(Recycler_Adapter.MyViewHolder holder, int position) { 

     holder.title.setText(data.get(position).getTitle()); 
     holder.price.setText(data.get(position).getRate()); 
    } 
    @Override 
    public int getItemCount() { 
     return data.size(); 
    } 
    public class MyViewHolder extends RecyclerView.ViewHolder { 
     TextView title, price; 
     public MyViewHolder(View itemView) { 
      super(itemView); 
      title = (TextView) itemView.findViewById(R.id.awesom); 
      price = (TextView) itemView.findViewById(R.id.rate); 
     } 
    } 
} 

请帮我解决this.That会appreciated.Thank你。

Answer 1

你需要这样做：

public class Api_Contact { 
    @SerializedName("status") 
    private String status; 
    @SerializedName("data") 
    private List<Data> data; 

    public String getStatus() { 
    return status; 
    } 

    public List<Data> getData() { 
    Log.e("in get data of contact", data.toString()); 
    return data; 
    } 

} 

而且你需要创建这个两个班：

public class Data { 

    @SerializedName("title") 
    private String title; 
    @SerializedName("rate") 
    private String rate; 
    @SerializedName("pic") 
    private List<Pic> picList; 

    public void setTitle(String title) { 
    this.title = title; 
    } 

    public void setRate(String rate) { 
    this.rate = rate; 
    } 

    public void setPicList(List<Pic> picList) { 
    this.picList = picList; 
    } 

    public String getTitle() { 
    return title; 
    } 

    public String getRate() { 
    return rate; 
    } 

    public List<Pic> getPicList() { 
    return picList; 
    } 

} 

而且

public class Pic { 

    @SerializedName("file_name") 
    private String fileName; 

    public void setFileName(String fileName) { 
    this.fileName = fileName; 
    } 

    public String getFileName() { 
    return fileName; 
    } 

}