Android Retrofit：将回调中的列表添加到类中

Question

我是第一次在这里使用Retrofit。

我想将我的列表从 Callback 放到 UsersData 类中。这是不可能的。但是，如果我删除 UsersData 中的所有内容并将 Profile 中的内容放入 UsersData 中，那么它就可以工作。但它不能满足我的需求。我需要能够将 List 从 Callback 放入 UsersData 类。

在我的片段中：

 App.getRestClient().getAttendanceService().getUsers(48, new Callback<List<UsersData>>() {
    @Override
    public void success(List<UsersData> usersDao, Response response) {

        String ble = usersDao.get(0).getResults().get(0).getFirstName();
        Toast.makeText(getActivity(),ble, Toast.LENGTH_SHORT).show();

    }

    @Override
    public void failure(RetrofitError error) {

    }
});

应用程序

public class App extends Application {

    private static RestClient restClient;

    public static App instance = null;

    public static Context getInstance() {
        if (null == instance) {
            instance = new App();
        }
        return instance;
    }

    @Override
    public void onCreate(){
        super.onCreate();
        restClient = new RestClient();
    }

    public static RestClient getRestClient(){
        return restClient;
    }
}

还有我的客户

public class RestClient {

    private static final String BASE_URL = "www.Link_to_json.com" ;
    private AttendanceService attendanceService;

    public RestClient()
    {
        Gson gson = new GsonBuilder()
                .setDateFormat("yyyy'-'MM'-'dd'T'HH':'mm':'ss'.'SSS'Z'")
                .create();

        RestAdapter restAdapter = new RestAdapter.Builder()
                //.setLogLevel(RestAdapter.LogLevel.FULL)
                .setEndpoint(BASE_URL)
                //.setClient(new OkClient(new OkHttpClient()))
                //.setConverter(new GsonConverter(gson))
                .build();

        attendanceService = restAdapter.create(AttendanceService.class);
    }

    public AttendanceService getAttendanceService()
    {
        return attendanceService;
    }
}

我的界面

public interface AttendanceService {

    @GET("/GetUsers")
    void getUsers(@Query("companyId") int i, Callback<List<UsersData>> u );

}

和用户数据

public class UsersData {

    private List<Profile>  results;
    public List<Profile> getResults() {
        return results;
    }

}

配置文件数据类：

public  String firstName;
public  String lastname;
public  int userId;
public  String userNameId;
...

json 示例：

[
    {
        "AttendanceDate":null,
        "AttendanceStatus":1,
        "AttendanceStatusDescription":null,
        "CompanyId":48,
        "Email":"",
        "FirstName":"Sindri",
        "Gender":1,
        "Gsm":"",
        "Id":259,
        "LastName":"yeh",
        "MiddleName":"",
        "Role":0,"UserId":"corp\\marg"
    },{
        "AttendanceDate":null,
        "AttendanceStatus":1,
        "AttendanceStatusDescription":null,
        "CompanyId":48,
        "Email":"",
        "FirstName":"David",
        "Gender":1,
        "Gsm":"",
        "Id":165,
        "LastName":"Guðmundsson",
        "MiddleName":"",
        "Role":0,"UserId":"corp\\marg"
    }
]

Answer 1

尝试将列表/数组包装在 UsersData 类本身中：

public interface AttendanceService {

    @GET("/GetUsers")
    void getUsers(@Query("companyId") int i, Callback<UsersData> u );
}

UsersData.java：

public class UsersData {

    public Profile[] results;

    public class Profile {
        public String firstName;
        public String lastname;
        public int userId;
        public String userNameId;
    }
}

在回调中，您可以迭代结果数组。 正如 UMESH0492 所评论的，您还应该在 JSON 中命名您的列表：

{
"profile": [
    {
        "AttendanceDate":null,
        "AttendanceStatus":1,
        "AttendanceStatusDescription":null,
        "CompanyId":48,
        "Email":"",
        "FirstName":"Sindri",
        "Gender":1,
        "Gsm":"",
        "Id":259,
        "LastName":"yeh",
        "MiddleName":"",
        "Role":0,"UserId":"corp\\marg"
    },{
        "AttendanceDate":null,
        "AttendanceStatus":1,
        "AttendanceStatusDescription":null,
        "CompanyId":48,
        "Email":"",
        "FirstName":"David",
        "Gender":1,
        "Gsm":"",
        "Id":165,
        "LastName":"Guðmundsson",
        "MiddleName":"",
        "Role":0,"UserId":"corp\\marg"
    }
]
}