Natalia Panferova

Adjusting line height in SwiftUI on iOS 26 iOS 26 introduces the lineHeight(_:) modifier and AttributedString.LineHeight attribute for adjusting vertical spacing between lines of text in SwiftUI.

On iOS 26, we have a new #SwiftUI modifier, lineHeight(_:), for adjusting the distance between the baselines of two subsequent lines of text. There are a few options available in this new API, so I thought I would look through how they behave in practice: nilcoalescing.com/blog/Adjusti...

Animating SF Symbols in SwiftUI Add symbol effect animations and transitions to symbol images in SwiftUI to handle icon state changes without custom drawing or animation logic.

Add symbol effect animations and transitions to symbol images in SwiftUI to handle icon state changes without custom drawing or animation logic: nilcoalescing.com/blog/Animati...
#iOSDev #SwiftUI

Nil Coalescing - Nil Coalescing Newsletter - February 2026 February is the shortest month of the year, yet for our team at Nil Coalescing, it was an incredibly packed one. We spent most of it on the move! I recently had the opportunity to speak at the ARCtic ...

The February issue of the Nil Coalescing newsletter is out 📬
It’s been a busy month for our team with lots of travel! I've shared a glimpse into my "Swift's Hidden Gems" talk from the ARCtic Conference, a new SwiftUI post, and plans for the near future.
nilcoalescing.com/newsletter/2...

Isolate SwiftUI animations to specific attributes Precisely scope animations to specific animatable attributes by using the animation(_:body:) API introduced in iOS 17.

✨ 𝐼𝑠𝑜𝑙𝑎𝑡𝑒 𝑆𝑤𝑖𝑓𝑡𝑈𝐼 𝑎𝑛𝑖𝑚𝑎𝑡𝑖𝑜𝑛𝑠 by Natalia Panferova (@natpanferova.bsky.social)

iOS 17's 𝑎𝑛𝑖𝑚𝑎𝑡𝑖𝑜𝑛(_:𝑏𝑜𝑑𝑦:) modifier offers granular control over which attributes animate. Learn how to adopt it in your apps.

#SwiftUI #Animation #iOSDev

nilcoalescing.com/blog/Isolate...

Defining custom string interpolation behavior in Swift Extend Swift’s string interpolation to define custom behavior, such as value formatting, directly inside string literals.

Extend Swift’s string interpolation to define custom behavior, such as value formatting, directly inside string literals: nilcoalescing.com/blog/Definin...
#SwiftLang

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𝗝𝗮𝗻𝘂𝗮𝗿𝘆'𝘀 𝘁𝗼𝗽 𝟯 𝗺𝗼𝘀𝘁-𝗲𝗻𝗴𝗮𝗴𝗲𝗱:

🥇 @natpanferova.bsky.social on 𝘚𝘍 𝘚𝘺𝘮𝘣𝘰𝘭𝘴 𝘢𝘯𝘪𝘮𝘢𝘵𝘪𝘰𝘯
🥈 @fatbobman.com on 𝘊𝘩𝘪𝘭𝘥 𝘚𝘵𝘢𝘵𝘦 𝘶𝘱𝘥𝘢𝘵𝘦𝘴
🥉 @natpanferova.bsky.social on 𝘚𝘵𝘳𝘪𝘯𝘨 𝘪𝘯𝘵𝘦𝘳𝘱𝘰𝘭𝘢𝘵𝘪𝘰𝘯

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Full articles 👇

#iOS #SwiftUI #Swift

Isolate SwiftUI animations to specific attributes Precisely scope animations to specific animatable attributes by using the animation(_:body:) API introduced in iOS 17.

For precise control over which attributes should animate in #SwiftUI, especially in generic components that accept arbitrary content, we can use the animation(_:body:) API introduced in iOS 17 to avoid accidental animations.

I've written a post about it: nilcoalescing.com/blog/Isolate...

Sunset over Iso Syöte with snow covered trees in the foreground shaped by heavy frost, glowing orange light from the low winter sun on the horizon, and an expansive frozen forest stretching into the distance under a clear blue sky

Natalia Panferova standing in a snowy park in Oulu, wearing a dark winter coat, knit hat, scarf, and boots, smiling on a snow covered path with frost covered trees and a dark sculpture visible in the background

Reindeer standing in a snowy forest enclosure at a reindeer farm, partially framed by frost covered evergreen branches, with antlers visible and snow covering the ground and surrounding trees

Natalia Panferova speaking on stage at the ARCtic Conference, standing at a podium under blue stage lighting with a large screen behind her displaying a Swift logo with heart shaped balloons

Last week I had an amazing opportunity to be part of the ARCtic Conference and present a talk on lesser known Swift language features. I really enjoyed the conference and my stay in Lapland ❄️ ☃️ 🦌 Thank you to all the organizers, speakers and attendees!

Initializing @Observable classes within the SwiftUI hierarchy Learn the recommended ways to initialize and store @Observable classes in SwiftUI views, and see what can go wrong when observable state is managed incorrectly.

Using @Observable is great, but it has one small caveat. The initializer of the @Observable objects will be called multiple times, even with @State

@nilcoalescing.com's excellent article covers that topic in more detail.

#iOS #swiftUi

nilcoalescing.com/blog/Initial...

Handle plurals in SwiftUI Text views with inflection Display grammatically correct text effortlessly with Foundation's automatic grammar agreement, handling pluralization without extra logic.

Display grammatically correct text in SwiftUI effortlessly with Foundation's automatic grammar agreement, handling pluralization without extra logic: nilcoalescing.com/blog/HandleP...
#SwiftUI #iOSDev

SwiftUI Fundamentals The essential guide to SwiftUI core concepts and APIs

Yesterday I joined a book club session with iOS developers at Expedia who have been reading SwiftUI Fundamentals (books.nilcoalescing.com/swiftui-fund...). We talked through less obvious parts of SwiftUI, and they shared very positive feedback about the book. Made writing it feel worthwhile 😊

Noncopyable types in Swift Explore noncopyable types in Swift and learn how they enforce stricter ownership rules to avoid unintended errors and resource conflicts.

Explore noncopyable types in Swift and learn how they enforce stricter ownership rules to avoid unintended errors and resource conflicts: nilcoalescing.com/blog/Noncopy...
#SwiftLang

Initializing @Observable classes within the SwiftUI hierarchy Learn the recommended ways to initialize and store @Observable classes in SwiftUI views, and see what can go wrong when observable state is managed incorrectly.

Initializing `@Observable` objects in SwiftUI views isn't as simple as it looks. 🧐

@natpanferova.bsky.social explains why you need `@State` and how to handle the lifecycle correctly.
nilcoalescing.com/blog/Initia...

Nil Coalescing - Nil Coalescing Newsletter - January 2026 In this issue of the newsletter, I want to share some insights from iOS Conf SG, including the main ideas from my own talk, as well as a few learnings from other talks at the conference. I hope you wi...

The January issue of the Nil Coalescing newsletter has been sent out and is now available online!

I shared some insights from iOS Conf SG, the main ideas from my own talk on building a SwiftUI mindset, and also a few learnings from other talks: nilcoalescing.com/newsletter/2...

#iOSDev #SwiftUI

Animating SF Symbols in SwiftUI Add symbol effect animations and transitions to symbol images in SwiftUI to handle icon state changes without custom drawing or animation logic.

Add symbol effect animations and transitions to symbol images in SwiftUI to handle icon state changes without custom drawing or animation logic: nilcoalescing.com/blog/Animati...
#iOSDev #SwiftUI

Natalia Panferova speaking on stage at iOS Conf SG, presenting a talk titled "The SwiftUI Mindset"

Group photo of speakers, organizers and attendees gathered at iOS Conf SG

Natalia Panferova’s iOS Conf SG speaker badge displayed with RevenueCat plush toys and photo booth printouts on a table

I had a great time at iOS Conf SG last week! I really enjoyed chatting with developers in the iOS community, learning from other speakers, and sharing my SwiftUI talk. Big thank you to all the organizers and volunteers for such a great conference experience 🤩
#iOSConfSG

Create a fully custom About window for a Mac app in SwiftUI Design a custom About window for your SwiftUI macOS app with a personalized layout, detailed app information, and a styled background that fits your app’s look and feel.

Needed to add some information to the About window in the admin app. This post by @natpanferova.bsky.social was really helpful.

nilcoalescing.com/blog/FullyCu...

Defining custom string interpolation behavior in Swift Extend Swift’s string interpolation to define custom behavior, such as value formatting, directly inside string literals.

🔤 𝘋𝘦𝘧𝘪𝘯𝘪𝘯𝘨 𝘊𝘶𝘴𝘵𝘰𝘮 𝘚𝘵𝘳𝘪𝘯𝘨 𝘐𝘯𝘵𝘦𝘳𝘱𝘰𝘭𝘢𝘵𝘪𝘰𝘯 𝘉𝘦𝘩𝘢𝘷𝘪𝘰𝘳 by Natalia Panferova (@natpanferova.bsky.social)

Learn how to extend Swift's string interpolation with custom behavior for formatting dates and values directly in string literals.

#Swift #SwiftUI

nilcoalescing.com/blog/Definin...

iOS Newsletter Issue 75 Issue 75 • January 16, 2026

📢 𝗜𝘀𝘀𝘂𝗲 𝟳𝟱 is out!

This week's squad:
🤖 𝘓𝘢𝘯𝘨𝘶𝘢𝘨𝘦 𝘔𝘰𝘥𝘦𝘭 𝘛𝘰𝘬𝘦𝘯𝘪𝘻𝘢𝘵𝘪𝘰𝘯
🔤 𝘊𝘶𝘴𝘵𝘰𝘮 𝘚𝘵𝘳𝘪𝘯𝘨 𝘐𝘯𝘵𝘦𝘳𝘱𝘰𝘭𝘢𝘵𝘪𝘰𝘯
⚙️ 𝘚𝘸𝘪𝘧𝘵 𝘊𝘰𝘮𝘱𝘪𝘭𝘦𝘳 𝘏𝘢𝘤𝘬𝘴
📋 𝘌𝘷𝘦𝘯𝘵𝘒𝘪𝘵 𝘙𝘦𝘮𝘪𝘯𝘥𝘦𝘳𝘴
🎵 𝘔𝘶𝘴𝘪𝘤𝘒𝘪𝘵 𝘔𝘢𝘴𝘵𝘦𝘳𝘤𝘭𝘢𝘴𝘴
👁️ 𝘝𝘪𝘴𝘪𝘰𝘯 𝘍𝘳𝘢𝘮𝘦𝘸𝘰𝘳𝘬 𝘛𝘶𝘵𝘰𝘳𝘪𝘢𝘭
🤝 𝘛𝘦𝘢𝘮𝘴 & 𝘈𝘐
🛠️ 𝘔𝘦𝘵𝘢𝘭 𝘛𝘰𝘰𝘭𝘤𝘩𝘢𝘪𝘯 𝘛𝘶𝘳𝘪𝘰𝘴

#iOS #Development

ios-newsletter.snappmobile.io/issues/2026-...

It makes me very happy to hear that 😃

Customizing the appearance of symbol images in SwiftUI Learn how to adjust size, color, rendering modes, variable values, and design variants of SF Symbols in SwiftUI apps.

Learn how to adjust size, color, rendering modes, variable values, and design variants of SF Symbols in SwiftUI apps: nilcoalescing.com/blog/Customi...
#iOSDev #SwiftUI

Animating SF Symbols in SwiftUI Add symbol effect animations and transitions to symbol images in SwiftUI to handle icon state changes without custom drawing or animation logic.

✨ 𝐴𝑛𝑖𝑚𝑎𝑡𝑖𝑛𝑔 𝑆𝐹 𝑆𝑦𝑚𝑏𝑜𝑙𝑠 𝑖𝑛 𝑆𝑤𝑖𝑓𝑡𝑈𝐼 by Natalia Panferova (@natpanferova.bsky.social)

Get icon animations without custom drawing code using SwiftUI symbol effects and content transitions.

#SwiftUI #SFSymbols

nilcoalescing.com/blog/Animati...

Screenshot of the Chestnut Latte recipe in Breve app

Have you tried this seasonal special yet?

Chestnut Latte - a silky balance of espresso and creamy milk enriched with the buttery sweetness of chestnut purée.

You can find the recipe in Breve: apps.apple.com/app/apple-st...

#CoffeeLovers #CoffeeTime

Defining custom string interpolation behavior in Swift Extend Swift’s string interpolation to define custom behavior, such as value formatting, directly inside string literals.

Swift’s string interpolation system is more powerful than it first appears. Beyond simple value substitution, it can be extended to apply custom logic when values are interpolated. I’ve published a post showing how it can be done: nilcoalescing.com/blog/Definin...
#SwiftLang

iOS Newsletter Issue 74 Issue 74 • January 9, 2026

📢 Issue 𝟕𝟒 is out!

Featuring:
🤖 𝑃𝑟𝑜𝑚𝑝𝑡𝑖𝑛𝑔 𝑎𝑛 𝑜𝑛-𝑑𝑒𝑣𝑖𝑐𝑒 𝑓𝑜𝑢𝑛𝑑𝑎𝑡𝑖𝑜𝑛 𝑚𝑜𝑑𝑒𝑙
📱 𝑆𝑤𝑖𝑓𝑡𝑈𝐼 𝑆𝑖𝑑𝑒𝑏𝑎𝑟 𝑆𝑒𝑙𝑒𝑐𝑡𝑖𝑜𝑛
📄 𝐶𝑢𝑠𝑡𝑜𝑚 𝐷𝑜𝑐𝑢𝑚𝑒𝑛𝑡 𝑇𝑦𝑝𝑒𝑠
✨ 𝐴𝑛𝑖𝑚𝑎𝑡𝑖𝑛𝑔 𝑆𝐹 𝑆𝑦𝑚𝑏𝑜𝑙𝑠
🔄 𝐶ℎ𝑖𝑙𝑑 𝑆𝑡𝑎𝑡𝑒 𝑈𝑝𝑑𝑎𝑡𝑒𝑠
⚡ 𝑆𝑤𝑖𝑓𝑡𝑈𝐼 𝑃𝑒𝑟𝑓𝑜𝑟𝑚𝑎𝑛𝑐𝑒
💾 𝑈𝑠𝑒𝑟𝐷𝑒𝑓𝑎𝑢𝑙𝑡𝑠 𝑆𝑡𝑟𝑢𝑐𝑡𝑠
🎨 𝐴𝐼-𝑔𝑒𝑛𝑒𝑟𝑎𝑡𝑒𝑑 𝐼𝑐𝑜𝑛𝑠

ios-newsletter.snappmobile.io/issues/2026-...

#iOSDev

YouTube video by Stewart Lynch Initializing Observable Classes

If you’ve ever wondered where to create your observable class in SwiftUI, this video walks through every case with real examples. Inspired by and credited to @natpanferova.bsky.social 's blog. Seven demo views that finally make it click. youtu.be/z0GD03x3gc4

Thank you for buying the book, I hope you'll find it useful! Regarding the architecture choice, I think it depends on the specific project needs, but the general advice from me would be to keep it simple and stick to something that is clear to you and others working on the same project.

Nil Coalescing - Nil Coalescing Newsletter - December 2025 I hope you are enjoying the end of the year and finding some time to slow down, reflect, and look ahead to what's next. As 2025 comes to a close, I thought this would be a good moment to look back and...

The end-of-year edition of the Nil Coalescing newsletter is out 🎉 It includes a recap of the most popular iOS and macOS posts from 2025, a look ahead to 2026, and a festive discount on my books: nilcoalescing.com/newsletter/2...
#iOSDev #macOSDev #SwiftLang #SwiftUI

Initializing @Observable classes within the SwiftUI hierarchy Learn the recommended ways to initialize and store @Observable classes in SwiftUI views, and see what can go wrong when observable state is managed incorrectly.

Learn the recommended ways to initialize and store Observable classes in SwiftUI views, and see what can go wrong when observable state is managed incorrectly: nilcoalescing.com/blog/Initial...
#iOSDev #SwiftUI

Animating SF Symbols in SwiftUI Add symbol effect animations and transitions to symbol images in SwiftUI to handle icon state changes without custom drawing or animation logic.

I've been exploring all the different animation types we can apply to SF Symbols in #SwiftUI and wrote a post covering symbol effect animations and transitions: nilcoalescing.com/blog/Animati...