Convert RxJava Observables To Live Data With Kotlin Extension Functions

Question

I\'ve been using alot of RxJava Observables converted to LiveData in my code using LiveDataReactiveStreams.fromPublisher() library. So I t

Answer 1

Your solution is fine if you want to use LiveData and Rx together.

If you just want to auto-dispose your subscription you could implement it on Disposable like this:

private class LifecycleDisposable(obj: Disposable) :
        DefaultLifecycleObserver, Disposable by obj {
    override fun onStop(owner: LifecycleOwner) {
        if (!isDisposed) {
            dispose()
        }
    }
}

fun Disposable.attachToLifecycle(owner: LifecycleOwner) {
    owner.lifecycle.addObserver(LifecycleDisposable(this))
}

and call it like

Observable.just(1, 2, 3).subscribe().attachToLifecycle(this)

where this references any LifecycleOwner.