retrofit 用法

在github上有一个retrofit的例子，获取论坛的信息

public class ForumService {

private static final String FORUM_SERVER_URL = "http://jsonplaceholder.typicode.com";    private ForumApi mForumApi;

public ForumService() {

RequestInterceptor requestInterceptor = new RequestInterceptor() {            @Override            public void intercept(RequestFacade request) {                request.addHeader("Accept", "application/json");            }        };

RestAdapter restAdapter = new RestAdapter.Builder()                .setEndpoint(FORUM_SERVER_URL)                .setRequestInterceptor(requestInterceptor)                .setLogLevel(RestAdapter.LogLevel.FULL)                .build();　　　　　//创建一个接口实例        mForumApi = restAdapter.create(ForumApi.class);    }

public ForumApi getApi() {

return mForumApi;    }

public interface ForumApi {

@GET("/posts")        public Observable<List<Post>>            getPosts();

@GET("/posts/{id}")        public Observable<Post>            getPost(@Path("id") int postId);

@GET("/comments")        public Observable<List<Comment>>            getComments(@Query("postId") int postId);

@POST("/posts")        public Observable<Post>            postPost(Post post);    }}

代码中使用DetailPresenter 和ListPresenter程序运行时显示列表：