Written by 
I rarely participate actively in the Swift Evolution process, but I frequently refer to evolution proposals for my work, often multiple times per week. The proposals aren’t always easy to read, but they’re the most comprehensive (and sometimes only) documentation we have for many Swift features. For years, my tool of choice for searching Swift […]
One of the most interesting aspects of SwiftUI, at least from an architectural perspective, is how it essentially treats views as data. After all, a SwiftUI view isn’t a direct representation of the pixels that are being rendered on the screen, but rather a description of how a given piece of UI should work, look, […]
When building various kinds of scrollable UIs, it’s very common to want to observe the current scroll position (or content offset, as UIScrollView calls it) in order to trigger layout changes, load additional data when needed, or to perform other kinds of actions depending on what content that the user is currently viewing. However, when […]
On this final episode of 2022, Nick Lockwood returns to the show to discuss the overall evolution of Swift and its ecosystem of tools and libraries. How has Swift changed since its original introduction in 2014, how does it compare to other modern programming languages, and how might the language continue to evolve in 2023 […]
Ben Scheirman returns to the show to discuss how Swift’s built-in concurrency features, such as async/await and tasks, can be used in practice when building apps for Apple’s platforms. Essential Developer: Join the iOS Architect Crash Course to accelerate your journey towards becoming a senior developer. It’s 100% free and held entirely online. NordVPN: Get […]
Ever since Swift was first introduced, it’s been very common to need to use type erasure when working with generic protocols — ones that either reference Self within their requirements, or make use of associated types. For example, in earlier versions of Swift, when using Apple’s Combine framework for reactive programming, every time we wanted […]
Adam Bell returns to the podcast to discuss different techniques and approaches for optimizing UI code, and how to utilize tools like animations in order to build iOS apps that feel fast and responsive. NordVPN: Get an exclusive discount on NordVPN’s excellent VPN service, by going to nordvpn.com/sundell. They even have a 30-day money-back guarantee. […]
I had played with SwiftUI sporadically in the past, but it wasn’t until now that I had built a complete App Store-ready app with it. When SwiftUI was first announced I was very concerned about certain quirks of the framework and how it was probably not suitable for professional iOS development, but with the framework […]
Donny Wals returns to the show to talk about being an iOS developer freelancer, and to discuss some of the key new APIs, Swift language features, and frameworks that were introduced at WWDC22. Essential Developer: Join the iOS Architect Crash Course to accelerate your journey towards becoming a senior developer. It’s 100% free and held […]
The concept of Type Erasure is not new to Swift, but was radically improved in Swift 5.7 with the addition of the any prefix keyword (not to be confused with the capitalized Any type!) and improvements to the already existing some Opaque Type keyword. In this article, we’ll explain the concept of type erasure, how […]