Learn how to test your SwiftUI iOS views in a simple and fast way using snapshot testing.

This blog post describes the process of reverse engineering UIKit to identify and fix our top crash in PSPDFKit for iOS.

I've been playing with intelligent code generation for a couple of years now, and I'd like to show you how to achieve this with SourceKit.

Property wrapper is a Swift language feature. The main goal here is wrapping properties with a logic that we extract into a separate type to reuse it across the codebase. This week, we will learn how to create a property wrapper to read data in Keychain and…

A quick overview of async/awaits, structured concurrency, and actor with sample code that helps you get started using Swift concurrency.

Learn with this tutorial guide how to create a Chain of Responsibility Pattern in Swift. Lot of examples to learn that design pattern.

In last week's post, I demonstrated how you can use a task group in Swift to concurrently run multiple tasks that produce the same output. This is useful when you're loading a bunch of images…

Learn how you can leverage Swift Concurrency’s actors and async/await features to build a token refresh flow.

A look at using tilesets programmatically in SpriteKit

Dynamically configure a Core Data fetch request for use with SwiftUI.

Learn what @MainActor is and how you can use Global Actors in Swift.

Unwrap or throw an error if an optional returns nil. It's a common scenario in Swift programs for which we're exploring several solutions.

Various techniques that let us define fully dynamic colors that adapt to the user’s selected color scheme, using either SwiftUI or UIKit.

When we talk about modular app, we rarely mention how complex it can be over time and get out of hand. In most cases, importing frameworks into one another is a reasonable solution but we can do more. Let’s explore how with dependency inversion in Swift and…

The accessibility inspector can help you to improve the accessibility of you apps.

AsyncSequence and effectful read-only properties combine to make something beautiful.

Since way back in iOS 2.0, the venerable Formatter class and its derivations such as DateFormatter and NumberFormatter have been the go-to for converting values to and from strings. Over the years …

If you have ever worked with an app with multiple alerts, please beware that the system can present only the latest or outermost one. Let's see how we can mitigate this.

Trying to reference two methods with the same name and parameters will cause an ambiguous compile error. Learn how to resolve it.