content: 
  /*
   * The MIT License (MIT)
   *
   * Copyright (c) 2015 malin
   *
   * Permission is hereby granted, free of charge, to any person obtaining a copy
   * of this software and associated documentation files (the "Software"), to deal
   * in the Software without restriction, including without limitation the rights
   * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   * copies of the Software, and to permit persons to whom the Software is
   * furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included in all
   * copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
   * SOFTWARE.
   */
  
  package com.malin.rxjava.service;
  
  
  import retrofit2.Retrofit;
  import retrofit2.adapter.rxjava.RxJavaCallAdapterFactory;
  import retrofit2.converter.gson.GsonConverterFactory;
  
  /**
   * 类描述:RetrofitService
   * 创建人:malin.myemail@gmail.com
   * 创建时间:16-1-24
   * 备注:{@link https://github.com/basil2style/Retrofit-Android-Basic} Thanks for  ,Her code is very good ! I made reference to his code,It saves me a lot of time!
   * 修改人:
   * 修改时间:
   * 修改备注:
   */
  public class RetrofitService {
      private static final String API = "https://api.github.com";
  
      protected RetrofitService() {
          retrofit = new Retrofit.Builder()
                  .baseUrl(API)
                  .addCallAdapterFactory(RxJavaCallAdapterFactory.create())
                  .addConverterFactory(GsonConverterFactory.create())
                  .build();
      }
  
      private volatile static RetrofitService instance = null;
  
      private Retrofit retrofit;
  
      public static RetrofitService getInstance() {
          if (instance == null) {
              synchronized (RetrofitService.class) {
                  if (instance == null) {
                      instance = new RetrofitService();
                  }
              }
          }
          return instance;
      }
  
      public <T> T createService(Class<T> clz){
          return retrofit.create(clz);
      }
  
  }
  