java.lang.illegalstateException：预期BEGIN_OBJECT但BEGIN_ARRAY改造

您提供的所有JSON首先是不正确的：

这是正确的JSON：

{ 
    "code": 200, 
    "error_message": null, 
    "data": [{ 
      "caller_id": "44", 
      "content_id": "003", 
      "alias": "Eli Sugigi", 
      "judul": "Angkat sekarang juga", 
      "source_content": "http://bla.bla.mp4", 
      "thumb_pic": "http://bla.bla.mp4", 
      "sub_start": "2017-12-27 14:17:10", 
      "sub_end": "2018-01-03 00:00:00" 
     }, 
     { 
      "caller_id": "44", 
      "content_id": "002", 
      "alias": "Eli Sugigi", 
      "judul": "Mas Ganteng Angkat Dong", 
      "source_content": "http://bla.bla.mp4", 
      "thumb_pic": "http://bla.bla.mp4", 
      "sub_start": "2017-12-27 15:52:40", 
      "sub_end": "2018-01-03 00:00:00" 
     } 
    ] 
} 

后来你的回应类用这个作为响应等级：

public class MyResponseClass 
{ 
    private String error_message; 
    private ArrayList<Data> data; 
    private String code; 
    public String getError_message() 
    { 
     return error_message; 
    } 
    public void setError_message (String error_message) 
    { 
     this.error_message = error_message; 
    } 
    public ArrayList<Data> getData() 
    { 
     return data; 
    } 
    public void setData (ArrayList<Data> data) 
    { 
     this.data = data; 
    } 
    public String getCode() 
    { 
     return code; 
    } 
    public void setCode (String code) 
    { 
     this.code = code; 
    } 
    @Override 
    public String toString() 
    { 
     return "ClassPojo [error_message = "+error_message+", data = "+data+", code = "+code+"]"; 
    } 
} 

后来使用MyResponseData作为您的改进数据解析器：

ContactItem callerID = SessionManager.getProfile(this); 
    Call<MyResponseData> call = ServicesFactory.getService().getMyCollection(callerID.caller_id); 

，并在您onResponse：

@Override 
     public void onResponse(Call<MyResponseData> call, Response<MyResponseData> response) { 
      if (response.isSuccessful() && response.body().isSuccessful()) { 
       //here collection will be arraylist of MyCollection class 
        collection.clear(); 
        collection.addAll(response.body().getData()); 
        rvCollection.getAdapter().notifyDataSetChanged(); 
      } 
      else { 
       Toast.makeText(UploadVideoToneActivity.this, response.errorBody().toString(), Toast.LENGTH_LONG).show(); 
      } 
     } 

测试它，如果需要的话

问题是你所得到的“JSONArray的回应和你想收到在JSONObject。

您应该使用'List'作为返回类型getMyCollection(callerID.caller_id)方法。然后执行该方法。

在onResponse方法，你必须得到像下面

List<MyCollection> data = (List<MyCollection>) response.body() 

更新

您可以点击这里查看列表（http://pojo.sodhanalibrary.com/）

把你JSON响应，然后按提交。您将获得Pojo类结构。

作出轻微修改尝试从APIResponse<MyCollection>更改为APIResponse<List<MyCollection>>

因此，代码变为：

public class UploadVideoToneActivity extends BaseActivity{ 
List<MyCollection> collection = new ArrayList<>(); 
private void loadCollection() { 
    ContactItem callerID = SessionManager.getProfile(this); 
    Call<APIResponse<List<MyCollection>>> call = ServicesFactory.getService().getMyCollection(callerID.caller_id); 
    call.enqueue(new Callback<APIResponse<List<MyCollection>>>() { 
     @Override 
     public void onResponse(Call<APIResponse<List<MyCollection>>> call, Response<APIResponse<List<MyCollection>>> response) { 
      if (response.isSuccessful() && response.body().isSuccessful()) { 
       List<MyCollection> data = (List<MyCollection>) response.body().data; 
       if (data != null) { 
        collection.clear(); 
        collection.addAll(data); 
        rvCollection.getAdapter().notifyDataSetChanged(); 
       } 
      } 
      else { 
       Toast.makeText(UploadVideoToneActivity.this, response.errorBody().toString(), Toast.LENGTH_LONG).show(); 
      } 
     } 
     @Override 
     public void onFailure(Call<APIResponse<List<MyCollection>>> call, Throwable t) { 
      Toast.makeText(UploadVideoToneActivity.this, t.getLocalizedMessage(), Toast.LENGTH_LONG).show(); 
     } 
    }); 
} 

而且更新您的Json（部分）至：

"data": [{ 
      "caller_id": "44", 
      "content_id": "003", 
      "alias": "Eli Sugigi", 
      "judul": "Angkat sekarang juga", 
      "source_content": "http://bla.bla.mp4", 
      "thumb_pic": "http://bla.bla.mp4", 
      "sub_start": "2017-12-27 14:17:10", 
      "sub_end": "2018-01-03 00:00:00" 
     }, 
     { 
      "caller_id": "44", 
      "content_id": "002", 
      "alias": "Eli Sugigi", 
      "judul": "Mas Ganteng Angkat Dong", 
      "source_content": "http://bla.bla.mp4", 
      "thumb_pic": "http://bla.bla.mp4", 
      "sub_start": "2017-12-27 15:52:40", 
      "sub_end": "2018-01-03 00:00:00" 
     } 
    ] 

希望它有帮助！