Swift

The learning materials list for RxSwift

The learning materials list for RxSwift

Reactive programming is awesome and really makes complex I/O stuff simple. However, FRP is totally different approach how you look at the events and programming. Such a change in thinking requires good quality materials which can make the learning process simpler and quicker. Here’s the list of materials

Memory management in RxSwift - DisposeBag

Memory management in RxSwift - DisposeBag

I’ve noticed a lot of beginners in RxSwift ask about DisposeBag. DisposeBag isn’t a standard thing in iOS development neither in other Rx’s implementations. Basically, it is how RxSwift handles memory management on iOS platform. In this article, I want to answer for few question like what

RxCaseStudy: Default value after a countdown

RxCaseStudy: Default value after a countdown

Recently somebody asked me how he can send a default value if the stream hasn’t sent a new value in 5 minutes using RxSwift. The final solution is short, however it uses few operators like merge, concat & flatMapLatest together which makes it more … advanced usage of Rx. I

RxSwift: Reactive Programming with Swift - The book review

RxSwift: Reactive Programming with Swift - The book review

The last Friday evening and the whole weekend I spent with the first book about RxSwift. It took a couple of months to prepare the book for four authors however, it took me 2 days to read it 😅. What I’ve found in this book? Who will take the most

How to handle errors in RxSwift

How to handle errors in RxSwift

In recent days MVVM become very popular architecture design for iOS apps. Especially when RxSwift starts to gain more and more popularity. In RxMVVM most of properties are expressed by Observables. However, Observables terminate whenever they receive error or completed events. Termination means an Observable subscription won’t receive any

RxTest - How to test the Observable in Swift

RxTest - How to test the Observable in Swift

Few articles earlier I showed you how you can wrap presentation of UIAlertController with the Observable. Despite there weren’t any tests in the sample project, I’ve written the whole sample in TDD. I didn’t upload test files for the last time because I didn’t want to

Presenting the UIAlertController with RxSwift

Presenting the UIAlertController with RxSwift

Showing an action sheet seems not to be a typical use case for the Observable. My first implementation ended with multiple PublishSubject inside UIViewController and ViewModel. Multiple subscriptions inside Observable’s chain is usually a code smell. Of course, I didn’t have multiple subscribe method calls inside my code,