RxJava 2 equivalent to isUnsubscribed

Question

I\'ve been working through the examples in the book Reactive Programming with RxJava, which is targeted at version 1 not 2. An introduction to infinite streams has the follo

Answer 1

After you subscribe to Observable, Disposable is returned. You can save it to your local variable and check disposable.isDisposed() to see if it still subscribing or not.