RxView.clicks(button).debounce(300, TimeUnit.MILLISECONDS).subscribe(new Action1<Void>() {
   @Override
   public void call(Void aVoid) {
    Log.i("test", "clicked");
   }
  });

 //轮训请求
Observable.create(new Observable.OnSubscribe<String>(){
 @Override
 public void call(Subscriber<? super String> subscriber) {

  Schedulers.newThread().createWorker().schedulePeriodically(new Action0() {
   @Override
   public void call() {

    //请求网络



   }
  },10,10, TimeUnit.SECONDS);

 }
}).subscribe(new Action1<String>() {
 @Override
 public void call(String s) {

 }
});

//轮询
Subscription mRepeat = Observable.interval(2,2,TimeUnit.SECONDS)
  .subscribe(new Action1<Long>() {
 @Override
 public void call(Long aLong) {


 }
});

//延迟
Observable.timer(2,TimeUnit.SECONDS)
  .subscribe(call ->{


});