Swift

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Get ready for Swift 6! Learn how to migrate your Xcode projects and packages to the latest major release of Apple's programming language.

Leverage the new magic replace symbol effect in iOS 18 for smooth transitions of slashes and badges in SF Symbols.

Hi 👋 WWDC is right around the corner! (and thanks to Photoroom I’m actually attending it onsite at Apple Park today!) Now before we learn about all the new exciting additions to iOS and Swift, how about discovering 3 advanced tips in Swift that you can already use? But first, I have a big than

All you need to know about Apple's macro-based testing library available from Xcode 16 and the Swift 6 Toolchain.

The JSONDecoder class uses several decoding strategies to decode dates encoded using different formats in JSON data.

In general I think Apple’s APIs are pretty good. However there are the occasional exceptions where my brain, for whatever reason, can’t seem to get a hold on the essence of the API design and results in me constantly looking up the docs. In UIKit, the UIAnimatedTransitioning and UIPresentationController APIs come to mind.

Perhaps “quirks” is not the correct description, but I recently encountered some unexpected behavior when modifying a protocol in Swift. While I wa

With the release of Xcode 15, Apple introduced an exciting feature called String Catalogs. This feature aims to streamline the localization process for your

Apple added a content unavailable view in iOS 17. It's available for both SwiftUI and UIKit.

A scroll view with a sticky header which shrinks as you scroll. Written with SwiftUI.

The view controller lifecycle has a new callback in iOS 17 that's back-deployable to iOS 13. Here's a quick guide to viewIsAppearing.

In iOS 17, Apple introduced a new framework called TipKit. You can utilize this framework to create tooltips that teach people hidden features of your apps.

In iOS 17, Apple added a range of sensory feedback view modifiers to SwiftUI.

When you’re writing SwiftUI views, you definitely don’t want to run expensive tasks in the view’s initializer, as it might get called very often. Also, since the view doesn’t have structural identity yet when the initializer runs, you can’t reliably store data.

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Foundation overloads the pattern matching operator ~= to enable matching against error codes in catch clauses.

Getting started with MapKit for SwiftUI

In this tutorial, we will walk you through how to work with SwiftUI maps. You will also learn how to add markers and annotations to a map view.

In UIKit, UITableViewCell has a customizable accessory view. You can use one of the few accessory options that is provided by iOS by setting th

Apple made changes to the SwiftUI onChange handler in iOS 17.

In this tutorial, we explain how to use the scrollTransition modifier in SwiftUI to animate the transition of views in a scroll view.

Xcode 15 introduces a new “bookmarks” feature, which lets you bookmark lines or entire files. It is a welcome change that has sherlocked my hack for usin

Beginning with the introduction of dark mode in iOS 13, colors in iOS are now (optionally) dynamic. You can provide light and dark variants for all color

In iOS 17, SwiftUI introduces a new modifier called scrollPosition for detecting scroll positions of scroll views. This tutorial will guide you through its usage and show you a quick demo.