retrofit+rxjava封装

public class RetrofitHelper {
    private static OkHttpClient okHttpClient;
  private static ServiceAPI serviceAPI;
    private static ServiceAPI api;
    static {
        initOkhttpClient();
    }
    private static OkHttpClient initOkhttpClient() {
        if (okHttpClient==null){
            synchronized (RetrofitHelper.class){
                if (okHttpClient==null){
                    okHttpClient=new OkHttpClient.Builder()
                            .build();
                }

            }
        }
        return okHttpClient;
    }
public static  ServiceAPI getAPI(){
if (serviceAPI==null){
    synchronized (ServiceAPI.class){
        if (serviceAPI==null){
          api = RetrofitHelper.createAPI(ServiceAPI.class,Api.URl);
        }
    }
}
    return  api;
}
    /**
     *
     * @param clzz
     * @param url
     * @param <T>
     * @return
     */
    public static  <T> T createAPI(Class<T> clzz,String url){
        Retrofit retrofit=new Retrofit.Builder()
                .baseUrl(url)
                .addConverterFactory(GsonConverterFactory.create())
                .addCallAdapterFactory(RxJava2CallAdapterFactory.create())
                .build();
        return  retrofit.create(clzz);
    }
}

public interface ServiceAPI {
    //首页
    @GET(Api.HOME)
    Observable<Home_Bean> home();
//分类
    @GET(Api.CLASSIFY)
    Observable<Classify_Bean>classify();
    //分类子列表
    @GET(Api.CLASSIFY2)
    Observable<ClassifyBean2>classify2(@Query("cid")String cid);
    @GET(Api.PRODUCTLIST)
    Observable<Productlist_Bean>productlist(@Query("pscid")String pscid);
    //详情
    @GET(Api.PARTICULARS)
    Observable<Particulars_Bean>particulars(@Query("pid")String pid,@Query("suorce")String suorce);
    //添加购物车
    @GET(Api.ADDCART)
    Observable<AddCart_Bean>addcart(@QueryMap Map<String,String>map);
    //登录
    @GET(Api.LOGIN)
    Observable<Login_Bean>login(@Query("mobile")String name,@Query("password")String pass);
   //注册
    @GET(Api.REGISTER)
    Observable<Register_Bean>register(@Query("mobile")String name,@Query("password")String pass);
   //订单列表
    @GET(Api.ORDERSLIST)
    Observable<Indent_Bean>indentlist(@QueryMap Map<String,String>map);
}