When we need to compare arrays based on custom criteria in #SwiftLang, we can use the elementsEqual(_:by:) method. It gives us more flexibility than using the == operator with arrays of Equatable elements:
nilcoalescing.com/blog/Compare...

Swift by Sundell is back! 😀

swiftbysundell.com/special/swif...

📰 Announcing Swift 6.1 📰 With ergonomic improvements to concurrency, simpler Objective-C interop, productivity and package improvements: swift.org/blog/swift-6... Install with Xcode 16.3 or the new swiftly version manager!

It can be difficult to find a clear, concise explanation of how method dispatch works in Swift, when calls are resolved statically or dynamically, and what that means for performance.

I wrote a post summarizing my learnings, with key cases and examples: nilcoalescing.com/blog/MethodD...

#SwiftLang

Implement a high-performance lazy scrolling list in #SwiftUI by efficiently reusing views for smooth scrolling with large datasets:
nilcoalescing.com/blog/CustomL...

Everyone wants to keep that main thread responsive. This usually comes down understanding and managing synchronous work.

That's what this post is all about.

www.massicotte.org/synchronous-...

If we want to present a sheet on top of another sheet in #SwiftUI, we have to attach the second sheet() modifier inside the content of the first sheet view, otherwise it won't work properly and SwiftUI will complain that only presenting a single sheet is supported.

Love this simple solution form Bruno Philipe. A Set gets rid of the duplicates but doesn't preserve the order. A simple sort by length for an Array would take care of that.

Made a small Swift package: a morphing view for UIKit (top) and SwiftUI (bottom). It's not as feature-rich as the one that UIKit uses, but it works pretty well. github.com/harlanhaskin...

UIKit tip: UIKit has a couple of hidden user defaults that turn on a bunch of very useful gesture logging. gist.github.com/harlanhaskin...

Let's start looking at managing real state with Swift concurrency!

So far, everything I've done in the past has been read-only. Here's another step-by-step post that examines stateful systems, actors, and reentrancy.

www.massicotte.org/step-by-step...

Ever wondered how to add padding to your #SwiftUI ScrollViews without reducing the actual content frame size? Starting with iOS 17, just use .safeAreaPadding instead of .padding.

#iOSDev

In many cases, adding a `.animation` or `withAnimation` might be all you need to have beautiful interruptible animations in SwiftUI.

I recently built a custom segmented control in #SwiftUI and found that matchedGeometryEffect() provided an easy way to animate a capsule highlighting the selected option as it transitions between choices.

I summarized the example in a blog post: nilcoalescing.com/blog/CustomS...

Hacked together a lil script that lets me write iOS code in Cursor. When I hit ⌘R it switches to Xcode, kicks off a new build (without xcodebuild's awful build times), and switches back to Cursor. Add this script, update your tasks.json, and pick a good key command.

gist.github.com/mergesort/6e...