Question

我有一个指向JSON列表的链接，我想将其加载到我的RecycleView（android）中。我已经做过相同的列表，但它们通常都有一个名称（列表结果-示例）。我曾尝试用带引用的list来制作POJO，但它不起作用，尽管大量数据正在加载-记录在日志中。

public class MainActivity extends AppCompatActivity {
  TextView tvName;
  Call<ObjectsListResponse> call;
  private final OAuthService service = RestApi.createService(OAuthService.class);

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.item);
    tvName = findViewById(R.id.tvName);

    call = service.getListCities();
    call.enqueue(new Callback<ObjectsListResponse>(){
        @Override
        public void onResponse(Call<ObjectsListResponse> call, Response<ObjectsListResponse> response){
            ObjectsListResponse objectListResponse = response.body();
            tvName.setText(objectListResponse.getAny().get(0).getName());

        }
        @Override
        public void onFailure(Call <ObjectsListResponse> call, Throwable t) {
            if(call.isCanceled()) {
                Toast.makeText(MainActivity.this, R.string.error, Toast.LENGTH_SHORT).show();
            }
        }
    });

}

}`

public class ObjectsListResponse {
@SerializedName("")
List<ObjectResponse> any;

public List <ObjectResponse> getAny() {
    return any;
}

}

public class ObjectResponse {
@SerializedName("_entityName")
private String entityName;
@SerializedName("_instanceName")
private String instanceName;
@SerializedName("id")
private String id;
@SerializedName("name")
private String name;
@SerializedName("version")
private String version;

public String getEntityName() {
    return entityName;
}

public String getInstanceName() {
    return instanceName;
}

public String getId() {
    return id;
}


public String getName() {
    return name;
}

public String  getVersion() {
    return version;
}

}

无名称的JSON列表

带有图像的JSON列表

Answer 1

您的响应似乎是顶级的JSON数组，这意味着没有顶级响应对象。您仅具有“内部”响应对象的列表。

所以您需要完全删除此类：

public class ObjectsListResponse {

    @SerializedName("")
    List<ObjectResponse> any;

    public List <ObjectResponse> getAny() {
        return any;
    }
}

然后将您的Call对象更改为Call<List>。因此，将其替换：

Call<ObjectsListResponse> call;

和

call.enqueue(new Callback<ObjectsListResponse>(){
    @Override
    public void onResponse(Call<ObjectsListResponse> call, Response<ObjectsListResponse> response){
        ...
    }
    @Override
    public void onFailure(Call<ObjectsListResponse> call, Throwable t) {
        ...
    }
});

与此：

Call<List<ObjectResponse>> call;

还有这个

call.enqueue(new Callback<ObjectsListResponse>(){
    @Override
    public void onResponse(Call<List<ObjectResponse>> call, Response<List<ObjectResponse>> response){
        ...
    }
    @Override
    public void onFailure(Call<List<ObjectResponse>> call, Throwable t) {
        ...
    }
});

未命名清单的Pojo

1 个答案: