Cancelling an Observable in RxJava

Question

I have an observable that is performing a download. However I want to cancel that observable when I click on a button.

How is that possible?

Thank you.

Answer 1

In my case I had a Publish subject that was emitting items in a certain condition. In some condition I wanted to cancel it, So I added a sealed class that holds the state:

sealed class DelayedItem {
   object Ignore : DelayedItem()
   data class Handle(val text: String) : DelayedItem()
}

And my subscriber was bounced like that:

myPublishSubject
            .subscribeOn(Schedulers.io())
            .debounce(500, TimeUnit.MILLISECONDS)
            .subscribe {
                if (it is DelayedItem.Handle)
                    handleItem(it)
            }

Hope it helps!