Threads
Information
Important difference between how to handle threads while subscribing or working with the UI in RxSwift
Check thread type
Use default Thread.isMainThread in the subscribe block in order to identify whether the thread is Main thread or background thread.
Observable<Int>.create { observer in
observer.onNext(1)
return Disposables.create()
}
.subscribe(onNext: { el in
print(Thread.isMainThread)
})
Code snippet from the article linked below about ObserveOn vs subscribeOn
Articles
thread-safety-with-subjects-in-rxswift
SO issue | rxswift-not-subscribing-on-main-thread
RxSwift Multithreading examples