RxJava delay for each item of list emitted

Question

I\'m struggling to implement something I assumed would be fairly simple in Rx.

I have a list of items, and I want to have each item emitted with a delay.

It

Answer 1

You can use

   Observable.interval(1, TimeUnit.SECONDS)
            .map(new Function() {
                @Override
                public Integer apply(Long aLong) throws Exception {
                    return aLong.intValue() + 1;
                }
            })
            .startWith(0)
            .take(listInput.size())
            .subscribe(new Consumer() {
                @Override
                public void accept(Integer index) throws Exception {
                    Log.d(TAG, "---index of your list --" + index);
                }
            });

This code above not duplicate value(index). "I'm sure"