RXJava实现延迟几秒操作

        Observable.timer(10,TimeUnit.SECONDS).subscribe(new Observer() {
            @Override
            public void onSubscribe(Disposable d) {
                
            }

            @Override
            public void onNext(Long aLong) {

            }

            @Override
            public void onError(Throwable e) {

            }

            @Override
            public void onComplete() {

            }
        });