如何正确回调新闻源 JSON 传递单个 api category_name

问：

如何以 JSON 格式传递新闻源回调。 应用程序在写入时崩溃。category_namepublic newsfeed newsfeed = null;

JSON API this：

object      {8}
    status   :ok
featured        [1]
category        [5]
menu        [5]
shopmenu
    
newsfeed        [1]
    cid :28
   category_name    :mobile
   recipes_count    :5

此回调数据

 public class CallbackHome implements Serializable {
 public String status = "";

public List<Recipe> featured = new ArrayList<>();


public List<Category> category = new ArrayList<>();
public List<menu> menu = new ArrayList<>();




public List<shopmenu> shopmenu = new ArrayList<>();



public newsfeed newsfeed = null;


public List<Recipe> recent = new ArrayList<>();
public List<Recipe> videos = new ArrayList<>();

}

如何正确回调新闻源数据 如何仅传递新闻源类别名称单个数据。category_name

displayData2(responseHome.newsfeed);

category_name = root_view.findViewById(R.id.mywidget);

public void displayData2(final newsfeed newsfeed) {

    category_name.setText(newsfeed.category_name);


}

模型类

public class newsfeed implements Serializable {

public int cid = -1;
public String category_name;


}