自己手打的Retrofit2+Rxjava 2结合的案例

自己也是最近几天看了相关的文章，就尝试写了一下，有点小激动，纯粹是为了记录一下

一.依赖如下

 

 

二。直接上正题

1.url用的是豆瓣的：

BASE_URL = "https://api.douban.com/v2/movie/"

配置retrofit

public class HttpMethods { 
     public static final String BASE_URL = "https://api.douban.com/v2/movie/";   
     private static final int DEFAULT_TIMEOUT = 5;  
    private Retrofit retrofit;  private MovieService movieService; 
  private HttpMethods() { 
//手动创建一个OkHttpClient并设置超时时间  
OkHttpClient mOkHttpClient = new OkHttpClient.Builder() .connectTimeout(HttpConfig.HTTP_TIME, TimeUnit.SECONDS)//设置连接超时时间  .readTimeout(HttpConfig.HTTP_TIME, TimeUnit.SECONDS)//设置读取超时时间  .writeTimeout(HttpConfig.HTTP_TIME, TimeUnit.SECONDS)//设置写入超时时间 // .addInterceptor(InterceptorUtil.HeaderInterceptor())//添加其他拦截器  .addInterceptor(InterceptorUtil.LogInterceptor())//添加日志拦截器  .build();
    retrofit = new Retrofit.Builder() .addConverterFactory(GsonConverterFactory.create())

                //这里就是retrofit和rxjava扯上关系了
                .addCallAdapterFactory(RxJava2CallAdapterFactory.create())
                .baseUrl(BASE_URL)
                .client(mOkHttpClient)
                .build();
        movieService = retrofit.create(MovieService.class);

    }


    //在访问HttpMethods时创建单例
    private static class SingletonHolder {


        private static final HttpMethods INSTANCE = new HttpMethods();
    }

    //获取单例
    public static HttpMethods getInstance() {
        return SingletonHolder.INSTANCE;
    }

    public MovieService API() {
        return movieService;
    }


    /**
     * 用于获取豆瓣电影Top250的数据
     *  @param
     * @param start      起始位置
     * @param count      获取长度
     */
    public void getTopMovie(Subscriber subscriber, int start, int count){
        movieService.getTopMovie(start, count)
                .subscribeOn(Schedulers.io())
                .observeOn(AndroidSchedulers.mainThread())
                .subscribe(subscriber);
    }

2.定义api

public interface MovieService {  @GET("top250") Flowable getTopMovie(@Query("start") int start, @Query("count") int count);

MovieEntity为具体的实体类，我就不贴出来了

3.高潮来了

/**  * 第一种retrofit2 和Rxjava2 结合成功获取数据的方案  */ HttpMethods.getInstance().API() .getTopMovie( 0, 10) .subscribeOn(Schedulers.io()) .observeOn(AndroidSchedulers.mainThread()) .subscribe(new Consumer() { @Override  public void accept(MovieEntity movieEntity) throws Exception { MovieEntity ob = movieEntity;  List subjects = ob.getSubjects();  tv_title.setText(subjects.get(2).getTitle());  } });   /**  * 第二种retrofit2 和Rxjava2 结合成功获取数据的方案  */ HttpMethods.getInstance().API() .getTopMovie( 0, 10) .subscribeOn(Schedulers.io()) .observeOn(AndroidSchedulers.mainThread()) .subscribe(new Subscriber() { @Override  public void onSubscribe(Subscription s) {/**  * 第一种retrofit2 和Rxjava2 结合成功获取数据的方案  */ HttpMethods.getInstance().API() .getTopMovie( 0, 10) .subscribeOn(Schedulers.io()) .observeOn(AndroidSchedulers.mainThread()) .subscribe(new Consumer() { @Override  public void accept(MovieEntity movieEntity) throws Exception { MovieEntity ob = movieEntity;  List subjects = ob.getSubjects();  tv_title.setText(subjects.get(2).getTitle());  } });   /**  * 第二种retrofit2 和Rxjava2 结合成功获取数据的方案  */ HttpMethods.getInstance().API() .getTopMovie( 0, 10) .subscribeOn(Schedulers.io()) .observeOn(AndroidSchedulers.mainThread()) .subscribe(new Subscriber() { @Override  public void onSubscribe(Subscription s) {BASE_URL = "https://api.douban.com/v2/movie/"

              //这里注意了，一定要设置，只有设置了，接下来的方法才会被调用
                s.request(Long.MAX_VALUE);
                tv_title.setText("I got it ");
            }

            @Override
            public void onNext(MovieEntity movieEntity) {
                MovieEntity ob  = movieEntity;
                List subjects  = ob.getSubjects();
                tv_title.setText(subjects.get(2).getTitle());
            }

            @Override
            public void onError(Throwable t) {
                tv_title.setText(" a error");
            }

            @Override
            public void onComplete() {
                tv_title.setText("it is finished");
            }
        });

}