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SwiftUI apps often need to perform async operations that will throw errors when things go wrong. This post shows how you can present alerts for such errors, without a bunch of messy code.

So, you should keep in mind every custom type or function you build to cover functionality on older platforms, because you might need to delete them in a year as soon as you bump the minimal platform version. Or, you can make the compiler remind you about that code. This week, we will talk about a way to make the compiler help us in identifying dead code in our codebase.

Who would have thought that software development can spawn controversy? Never mind code padding and whethe curly braces should start on a new line, check out these Swift features.

In this post we will explore the most modern APIs that SwiftUI provides for programmatic scrolling, covering how to configure the initial scroll position of a scroll view, how to drive it programmatically, and how to read the current position back. We will also cover some of the nuances that are easy to miss. It's worth noting though, that all of these new APIs apply to ScrollView only, and ScrollViewReader remains the only native option for programmatic scrolling in lists.

The Observation framework is a modern Swift feature that provides automatic change tracking for observable objects. It replaces ObservableObject with a cleaner, more efficient approach using Swift macros.

I built a sample app for this post called Tour Merch. It’s an App Clip plus a parent app, both written in Swift 6 with strict concurrency on. The clip lets you buy a shirt at a Metallica show with Apple Pay; the parent app lets you see every shirt you’ve bought across the tour. The whole companion repo is at the end of this post if you want to clone and poke.

What I want to walk through is the stuff that matters once you sit down to build one of these: what App Clips are actually for, how invocation works, how the project is wired, where Apple Pay forces your hand under Swift 6, and how the clip hands off to the parent app without losing the receipt.

Feature flags are a foundational tool for modern mobile development. They allow teams to control behavior at runtime, roll out features gradually, run experiments, and decouple deployment from release. In iOS applications, a well-designed feature flag system also becomes a central coordination mechanism between product, QA, and engineering.

This article walks through a type-safe and thread-safe feature flag implementation in Swift. It explains the design decisions behind the approach, the problems it solves, and how to integrate it into a real application.