利用RxJava防止控件二次点击（防抖）

app的build.gradle,导入Rxjava库

implementation : "io.reactivex:rxjava:1.2.10"

1.新建xxxSubscribe类实现Observable.OnSubscribe<View>

 private static final String TAG = "ClickSubscribe";
    private Subscriber mSubscriber;

    public ClickSubscribe(View view) {
        view.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                LogUtils.e(TAG, v.getClass().getSimpleName() + "我被点击了");
                mSubscriber.onNext(v);
            }
        });
    }

    @Override
    public void call(Subscriber<? super View> subscriber) {
        mSubscriber = subscriber;
    }

2.运用操作符

throttleFirst（time,TimeUnit.SECONDS）

如下方式

Observable.create(new ClickSubscribe(nextBtn))
                        .throttleFirst(2, TimeUnit.SECONDS)
                        .subscribe(new Action1<View>() {
                            //todo dothing
                        }