Performant, sleek and elegant.
Testing networking code might sound tricky at first but in reality, it just means using custom URLProtocol what returns data we would like to. This allows testing the networking module without mocking URLSession. Using this approach we could do so much more, even integrating a third party networking library. Networking class wrapping URLSession Firstly, let's …
Continue reading "Testing networking code with custom URLProtocol on iOS"
There are several ways how to create user interfaces on iOS: programmatically, xib per view or using storyboard for multiple views. Personally I tend to use xibs and programmatically created layouts more but sometimes I also use UIStoryboard - depends on the situation on hand. Therefore I like to present two small additions to UIStoryboard …
Continue reading "Instantiating view controllers from UIStoryboard on iOS"
Every app consists of different flows for achieving a specific goal. For example, there is a sequence of views for sign up. When sign up flow ends, we need to move to so called main view what represents the main functionality of the app. There are definitely a lot of different ways how to handle …
Continue reading "Navigating using flow controllers and responder chain on iOS"
In this post we will go over basic usage of generics in Swift by building a simple singly linked list. Introduction to generics Generic code is code where the functionality is described without using specific types. Meaning, the code can use any types what match with constraints (if there are any). It's best to take …
Continue reading "Singly linked list with generics in Swift"
We will look into how to make a property observable using a separate class managing the observers. It is an alternative and simple way of observing property changes without using ReactiveSwift, Key-Value Observing or anything else similar. It can be an excellent glue between Model and View Model in MVVM or between View and Presenter …
Continue reading "Making a property observable from outer scope using generic class Observable"
