AsyncImage got some useful improvements in iOS 27. We can now pass a URLRequest for per-image headers, caching, and timeout control, and provide a custom URLSession for image loading across a SwiftUI view hierarchy. You can learn more in my new post: nilcoalescing.com/blog/AsyncIm...

The Cold & Iced section in Breve has been growing! Four new recipes landed today, ready for hot days and slow, refreshing coffee breaks. Find them in Breve: apps.apple.com/us/app/breve... #Coffee #CoffeeRecipes #iOS

Reorder items within and between custom SwiftUI containers, and build selection-aware multi-item drag and drop interactions with the new APIs in iOS 27: nilcoalescing.com/blog/NewSwif...

Excited to share that I'll be running a SwiftUI workshop at iOSDevUK this September! Really looking forward to attending the conference, meeting everyone, and spending some time in Aberystwyth. Hope to see you there!

I've been experimenting with the new SwiftUI APIs for reordering items in container views and drag-and-drop in iOS 27. I documented what I've learned in my new blog post: nilcoalescing.com/blog/NewSwif...

Last day of the sale!

I've built a macOS app for designing mesh gradients. Tintly generates gradients from pasted color palettes and lets you adjust control points visually. It can export images, SVGs, CSS, and SwiftUI code. It's now available on the Mac App Store: apps.apple.com/us/app/tintl... #macOSDev #IndieDev

I wrote about two additions to SwiftUI's navigation transition APIs in iOS 27. The new crossFade transition provides an alternative presentation animation, while AnyNavigationTransition makes it possible to choose a transition dynamically at runtime: nilcoalescing.com/blog/SwiftUI...

I've just released an update for @brevecoffeeapp.bsky.social! It adds Home Screen widgets with daily coffee suggestions, recipe sharing, improved search, and better VoiceOver support ☕️

My WWDC26 book sale will be running for a few more days!

In iOS 27 we can add swipe actions to items in any scroll container, not just List, by applying the new swipeActionsContainer() modifier to the wrapping ScrollView. I wrote a post with some examples: nilcoalescing.com/blog/CustomS... #WWDC26 #iOSDev #SwiftUI

In Xcode 27 @State changes from a property wrapper to a macro, gaining lazy evaluation of the initial value. I summarized what this means for managing @Observable classes in our SwiftUI views: nilcoalescing.com/blog/Initial... #WWDC26 #SwiftUI #iOSDev

For a new app I'm working on, I needed to display a measurement in a SwiftUI Text view with the unit in a smaller font than the value. We can do this by targeting the unit component in an AttributedString. I shared an example on my blog: nilcoalescing.com/blog/Styling...

The SwiftUI Way is currently 30% off for WWDC26!

I wrote a new post covering the full range of animation timing options in SwiftUI, including easing curves, spring animations, the CustomAnimation protocol and more: nilcoalescing.com/blog/Animati... #iOSDev #SwiftUI

My annual WWDC book sale has started! All my Swift and SwiftUI books, including my most recent book, The SwiftUI Way, are now 30% off! You can learn more about the available books and bundles on my website: books.nilcoalescing.com #iOSDev #SwiftLang #SwiftUI

While building and testing a macOS app locally, values stored in UserDefaults remain between launches. We can quickly clear them using the defaults delete command. I wrote a short post as a reference: nilcoalescing.com/blog/Clearin... #macOSDev

The May issue of the Nil Coalescing newsletter is out! I shared Apple's community recognition page, some observations from using AI agents with SwiftUI, recent blog posts, and a bit of pre-WWDC excitement: nilcoalescing.com/newsletter/2...

I wrote a new post about TimelineView in SwiftUI and how it can be used to build views that update periodically or continuously without relying on explicit state changes, making it possible to create dynamic interfaces and visual effects: nilcoalescing.com/blog/Timelin... #iOSDev #SwiftUI

To programmatically scroll to an edge, a raw offset, or a view with a provided identity in SwiftUI, we can use the scrollPosition(_:anchor:) modifier. It takes a binding to a ScrollPosition, available from iOS 18: nilcoalescing.com/blog/ModernS... #iOSDev #SwiftUI

BackgroundStyle in SwiftUI exposes hierarchical levels via .secondary, .tertiary, and similar properties, giving us system background colors that adapt to context and color scheme without the need to bridge through UIColor: nilcoalescing.com/blog/Hierarc... #iOSDev #SwiftUI

We can customize where the scroll view should initially position its content in SwiftUI using the defaultScrollAnchor() modifier. It also lets us set a different anchor per situation, for example when the content is smaller than its container: nilcoalescing.com/blog/ModernS... #iOSDev #SwiftUI

I've just published a post covering the modern SwiftUI APIs for programmatic scrolling, including defaultScrollAnchor(), scrollPosition(), and others, also highlighting some nuances that are easy to miss: nilcoalescing.com/blog/ModernS... #iOSDev #SwiftUI

AI coding agents tend to hardcode spacing in SwiftUI, which can look wrong and cramped when a user adjusts their font size preference. SwiftUI's default container spacing adjusts for Dynamic Type automatically, but if you need custom spacing, consider using the ScaledMetric API. #iOSDev #SwiftUI

Learn how to build a SwiftUI mindset, use the framework more effectively in your projects and avoid common pitfalls from Natalia Panferova, former SwiftUI Frameworks Engineer at Apple: www.youtube.com/watch?v=Y_Ov... #iOSDev #SwiftUI

Excited to share that I'll be speaking at /dev/world on tour in Sydney in July! Can't wait to try out new SwiftUI APIs after WWDC26 and present my learnings 🤩 ontour.devworld.au

Starting from iOS 26, we can make a block of text easier to read at a glance by applying a loose line height with the new lineHeight() modifier in #SwiftUI. The modifier comes with many overloads to make customized line height adjustments: nilcoalescing.com/blog/Adjusti...

My friends from Those Who Swift newsletter are running a special promotion on my recent book "The SwiftUI Way - A field guide to SwiftUI patterns and anti-patterns" this week! Check out this week's issue to take advantage of the deal: thosewhoswift.substack.com/p/those-who-... #iOSDev #SwiftUI

Apple just published a new community recognition page with many inspiring developers, advocates, and educators who are making a difference in the Apple developer community and I'm so happy and honored to be one of them 😊 developer.apple.com/community/re...

Knowing which SwiftUI modifiers to reach for when styling the macOS window toolbar is not always obvious, and similar appearances can often be achieved in more than one way. I put together a reference for the different ways to do it on macOS 26: nilcoalescing.com/blog/AGuideT... #macOSDev #SwiftUI

Create a chart with the Swift Charts framework to show UV index throughout the day inspired by the iOS Weather app that dims the area up to the current time: nilcoalescing.com/blog/AreaCha... #iOSDev #macOSDev #SwiftUI

By default, SwiftUI popovers transform into sheets in a compact horizontal size class, but we can apply presentationCompactAdaptation(.popover) to the popover's content to override this and show a popover on iPhone: nilcoalescing.com/blog/Popover... #iOSDev #SwiftUI

I wrote a post on implementing background app refresh in SwiftUI. It covers setting up the capability in Xcode, scheduling a task, registering a handler with backgroundTask(_:action:), and testing it using the Xcode debugger: nilcoalescing.com/blog/Schedul... #iOSDev #SwiftUI

We can easily animate insertion and removal of SF Symbols in SwiftUI with symbol effect transitions. We don't even need to apply an implicit animation with the animation(_:value:) modifier or wrap the state modification in a withAnimation {} call. #iOSDev #SwiftUI

The April issue of the Nil Coalescing newsletter has been sent out and is now available online 📬 I shared links to talks from try! Swift Tokyo, the reception of 'The SwiftUI Way' book, and new content this month: nilcoalescing.com/newsletter/2... #iOSDev #SwiftLang #SwiftUI

Just noticed that my talk from try! Swift Tokyo got featured in Tech Talks Weekly 🙌 www.techtalksweekly.io/p/issue-101-...

The onChange() modifier in SwiftUI has gone through some API changes since it was introduced. I wrote an overview of the modern variants, including how to access old and new values, and trigger the action on initial appearance: nilcoalescing.com/blog/Overvie... #iOSDev #SwiftUI

Starting with Swift 6.2 and iOS 26, EnumeratedSequence conforms to RandomAccessCollection, allowing enumerated() to be used directly in ForEach and List views in SwiftUI: nilcoalescing.com/blog/UsingEn... #iOSDev #SwiftUI

List in #SwiftUI is only lazy when it can determine how many views a ForEach element resolves to without evaluating the closure. Using an `if` statement inside ForEach, or wrapping rows in AnyView makes SwiftUI evaluate the ForEach closure for every element before any rows are displayed.

Extend your app’s functionality to the entire macOS system by implementing services that users can access from the context menu or the Services menu in other apps: nilcoalescing.com/blog/macOSSy... #macOSDev

Got home from Japan and try! Swift Tokyo, the trip was amazing! It was so good to meet the local iOS community and explore Tokyo a bit. Thank you so much for having me @tryswift.jp ☺️ #tryswift

Register your macOS app as a login item using SMAppService: nilcoalescing.com/blog/LaunchA... #macOSDev

Got the nicest feedback about my SwiftUI books, it made me really happy 🥰 "... the explanations of view identity and data flow made sense in a way that just hadn’t gotten through to me no matter how many other tutorials or bits of Apple documentation I read."

The new backgroundExtensionEffect() SwiftUI modifier in iOS 26 lets us extend and blur visual content beyond a view’s bounds, creating continuous backgrounds behind elements like sidebars, inspectors, and overlay controls: nilcoalescing.com/blog/Backgro... #SwiftUI #iOSDev

Today was the last day of the try! Swift Tokyo conference and also the day of my talk. I think it went well 😌 Thank you so much to everyone involved @tryswift.jp for such an amazing experience! #tryswift

Heading to Japan tomorrow for @tryswift.jp ✈️ I've never been to Tokyo or the try! Swift conference before, so getting to attend and speak is a dream! Can't wait to meet everyone! tryswift.jp/en/

SwiftUI offers several methods to change the color of text, including foregroundStyle() and tint() modifiers, AttributedString attributes, and the textRenderer() API for advanced styling: nilcoalescing.com/blog/Foregro... #SwiftUI #iOSDev

Published a new YouTube video covering some advanced techniques for working with Optionals in Swift. I shared these as part of my presentation "Swift's Hidden Gems" at the ARCtic Conference and many developers were surprised youtu.be/qgDIOrKnmuw #SwiftLang

I wrote a post on how we can embed SF Symbols in Text and style them with modifiers in SwiftUI by leveraging LocalizedStringKey interpolation: nilcoalescing.com/blog/Embeddi... #iOSDev #SwiftUI

SwiftUI is approachable at first, but in real-life projects it's easy to make mistakes that can compromise app stability and performance. My new book "The SwiftUI Way" will help you recognize the most common anti-patterns and choose better alternatives: books.nilcoalescing.com/the-swiftui-...