<How do I wait for a void function to finish execu...

# stackoverflow

[user]

How do I wait for a void function to finish executing before triggering a completable in Android?
I'm very new to RxJava/RxAndroid and I'm very confused with how to achieve this workflow:
Trigger void function
Once it completes, provide some sort of callback to start a Completable function.
I tried wrapping my void function in an Observable that emits a , but honestly I've no clue if that's the right thing to do.
fun observableFoo(): Observable {
return Observable.create { emitter ->
emitter.onNext( voidFunction() )
}
.subscribeOn(Schedulers.io())...