Sharing experiences and solutions for integrating actors into existing codebases.

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Master Metal shaders for SwiftUI development. Learn the GPU fundamentals behind stunning visual effects — no graphics programming experience required.

If you’ve ever tried straddling two worlds—one foot in the elegant, type-safe realm of Swift and the other in the sprawling ecosystem of Java—you know the pain of keeping them in sync. Swift 6.2 introduces a first-class Swift–Java interoperability layer via…

Swift’s new C++ interoperability is a game-changer, letting you tap into mature C++ libraries from Swift’s safe, expressive syntax. In this post, I’ll guide you through the language-pair preview introduced in Swift 5.9—showing how to call C++ functions, wrap…

Ever wondered what really happens under the hood when you build that shiny Swift app? Here’s a confession: I used to treat assembly like dark magic—until I decided to embrace it. In this first installment of our three-part series, we’ll cover the bare essentials:…

GPS coordinates aren’t exact. Sensor readings have noise. User behavior is probabilistic. Yet we write code that pretends uncertainty doesn’t exist, forcing messy real-world data through clean Boolean logic.

Starting with iOS 17, Apple introduced the Observation framework to make updating SwiftUI views more efficient.

Understand DrawingGroup, CompositingGroup and GeometryGroup in the Core Animation way

The question of whether the ViewModel concept should exist has become increasingly prevalent recently.

Introduction

A comprehensive guide to SwiftUI's four spacer types - learn how Spacer, _TextBaselineRelativeSpacer, _HSpacer, and _VSpacer work internally, their sizing logic, and when to use each type effectively.

New techniques we’re using at Airbnb to improve and maintain performance of SwiftUI features at scale

A guide to making the best use of the tools available to you to fix bugs in your apps and get to the root cause of the issue in record time.

Learn how to use WebView and WebPage to load and save web content

Learn how to handle navigation in WebView and WebPage

Learn how to craft effective, guided prompts for Apple’s Foundation Model using Swift, SwiftUI, and the powerful FoundationModels framework.

Explore going from prompts to multi-agent architecture by leveraging Foundation Models tool calling capabilities and exposing LLMs themselves as tools

Step through the essential setup for AlarmKit timers in iOS 26, from requesting authorization and scheduling a countdown to presenting the Live Activity and an in-app list of active timers.