Does lambda in Android use a memory leak cause?

Question

I watch this presentation, and at 13:42 they say that using lambda in transit:

api.getEvents()
    .subscribeOn(Schedulers.io())
    .observeOn(AndroidSchedulers.mainThread())
    .doOnSubscribe(() -> loadingIndication.show())
    .doOnUnsubscribe(() -> loadingIndication.hide())
    .subscribe(...);

causes a leak.

Can you explain how the leak works in this case? Does a leak appear depending on how we compile the code and which class we put the RxJava code in (for example, in Activity, Application, in Service)?

Answer 1

, lambdas , , , Activity. , .

api.getEvents()
    .subscribeOn(Schedulers.io())
    .observeOn(AndroidSchedulers.mainThread())
    .doOnSubscribe(() -> loadingIndication.show())
    .doOnUnsubscribe(() -> loadingIndication.hide())
    .subscribe(events -> {}, throwable -> {});

, , CompositeDisposable Disposable, , compositeDisposable.add() compositeDisposable.clear() onDestroy().