使用Volley库在Android中展开的ListView

Question

我正在使用排球库制作可扩展列表视图。我已经获取了所有工作正常的根类别。现在我必须映射子类别。我
不知道我该怎么解决。这是我的json响应代码：here is my child categories

JSONArray headerArray = object.getJSONArray("ListCategories");
                for (int i=0;i<headerArray.length();i++){
                    JSONObject jsonObject = headerArray.getJSONObject(i);
                    final int Id = jsonObject.getInt("CategoryID");
                    final String name = jsonObject.getString("CategoryName");
                    header.add(new Category(Id,name));
                    JSONArray childArray = headerArray.getJSONObject(index++).getJSONArray("ListChildCategories");

                    for (int j=0;j<childArray.length();j++){
                        JSONObject childObject = childArray.getJSONObject(i);
                        final int ChildId = childObject.getInt("ID");
                       final String ChildName = 
     jsonObject.getString("Name");
                        child.add(new ChildCategory(ChildId,""));
                    }
                    Log.e("childArray",childArray.toString());
                }
                adapter = new ExpandableCategoryAdapter(context,header,child);
                expandableListView.setAdapter(adapter);
                adapter.notifyDataSetChanged();

这是我的类别模型：

public int getId() {
    return Id;
}
public void setId(int id) {
    Id = id;
}
public String getCategoryName() {
    return categoryName;
}
public void setCategoryName(String categoryName) {
    this.categoryName = categoryName;
}

这是子类别的模型：

public String getName() {
    return Name;
}

public void setName(String Name) {
    this.Name = Name;
}

public int getId() {
    return Id;
}

public void setId(int Id) {
    this.Id = Id;
}