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}, { "id": "01a08219-587f-709c-ace6-fc7cc51823b8", "title": "Defining dynamic colors in Swift", "url": "https://www.swiftbysundell.com/articles/defining-dynamic-colors-in-swift", "published_at": "2021-08-15T10:00:00+00:00" }, { "id": "01a08219-587f-709c-ace6-fc7cc5a59879", "title": "Using ‘@unknown default’ within switch statements", "url": "https://www.swiftbysundell.com/articles/using-an-unknown-default-case-within-a-switch-statement", "published_at": "2021-08-06T14:12:00+00:00" }, { "id": "01a08219-587f-709c-ace6-fc7cc5e9b54f", "title": "Podcast: “WWDC21, two months later”, with special guest Jordan Morgan", "url": "https://www.swiftbysundell.com/podcast/102", "published_at": "2021-08-02T16:30:00+00:00" }, { "id": "01a08219-587f-709c-ace6-fc7cc63f91ec", "title": "Throwing and asynchronous Swift properties", "url": "https://www.swiftbysundell.com/articles/throwing-async-properties", "published_at": "2021-07-27T15:50:00+00:00" }, { "id": "01a08219-587f-709c-ace6-fc7cc71b9141", "title": "Attaching property wrappers to function arguments", "url": "https://www.swiftbysundell.com/tips/attaching-property-wrappers-to-function-arguments", "published_at": "2021-07-23T11:30:00+00:00" }, { "id": "01a08219-587f-709c-ace6-fc7cc8075412", "title": "Podcast: “Cross-platform SwiftUI”, with special guest Malin Sundberg", "url": "https://www.swiftbysundell.com/podcast/101", "published_at": "2021-07-15T16:15:00+00:00" }, { "id": "01a08219-587f-709c-ace6-fc7cc8ecfad8", "title": "Stroking and filling a SwiftUI shape at the same time", "url": "https://www.swiftbysundell.com/articles/stroking-and-filling-a-swiftui-shape-at-the-same-time", "published_at": "2021-07-13T15:00:00+00:00" }, { "id": "01a08219-587f-709c-ace6-fc7cc9bc50ff", "title": "Mutating and non-mutating Swift contexts", "url": "https://www.swiftbysundell.com/articles/mutating-and-nonmutating-swift-contexts", "published_at": "2021-07-07T15:35:00+00:00" }, { "id": "01a08219-587f-709c-ace6-fc7cca6bda2c", "title": "Sponsor: ViRE", "url": "https://www.swiftbysundell.com/sponsor/vire-july-2021", "published_at": "2021-07-05T10:45:00+00:00" }, { "id": "01a08219-587f-709c-ace6-fc7cca9b8560", "title": "Podcast: “A tower of capabilities”, with special guest Chris Lattner", "url": "https://www.swiftbysundell.com/podcast/100", "published_at": "2021-07-02T15:35:00+00:00" }, { "id": "01a08219-587f-709c-ace6-fc7ccadd2fda", "title": "Dismissing a SwiftUI modal or detail view", "url": "https://www.swiftbysundell.com/articles/dismissing-swiftui-modal-and-detail-views", "published_at": "2021-06-29T12:10:00+00:00" }, { "id": "01a08219-587f-709c-ace6-fc7ccb474d0a", "title": "Calling async functions within a Combine pipeline", "url": "https://www.swiftbysundell.com/articles/calling-async-functions-within-a-combine-pipeline", "published_at": "2021-06-25T10:50:00+00:00" }, { "id": "01a08219-587f-709c-ace6-fc7ccb736626", "title": "Making SwiftUI views refreshable", "url": "https://www.swiftbysundell.com/articles/making-swiftui-views-refreshable", "published_at": "2021-06-24T12:30:00+00:00" }, { "id": "01a08219-587f-709c-ace6-fc7ccbd3b701", "title": "Basics: Availability checks", "url": "https://www.swiftbysundell.com/basics/availability", "published_at": "2021-06-23T15:12:00+00:00" }, { "id": "01a08219-587f-709c-ace6-fc7ccbde6b5a", "title": "Customizing how an external Swift type is encoded or decoded", "url": "https://www.swiftbysundell.com/articles/customizing-how-a-type-is-encoded-or-decoded", "published_at": "2021-06-22T13:40:00+00:00" }, { "id": "01a08219-587f-709c-ace6-fc7ccc40900d", "title": "Connecting async/await to other Swift code", "url": "https://www.swiftbysundell.com/articles/connecting-async-await-with-other-swift-code", "published_at": "2021-06-21T17:35:00+00:00" }, { "id": "01a08219-587f-709c-ace6-fc7ccc466f65", "title": "Automatic conversions between Double and CGFloat values in Swift 5.5", "url": "https://www.swiftbysundell.com/tips/double-cgfloat-auto-conversions", "published_at": "2021-06-15T15:00:00+00:00" }, { "id": "01a08219-587f-709c-ace6-fc7ccc816a6e", "title": "Using the MainActor attribute to automatically dispatch UI updates on the main queue", "url": "https://www.swiftbysundell.com/articles/the-main-actor-attribute", "published_at": "2021-06-13T14:45:00+00:00" }, { "id": "01a08219-587f-709c-ace6-fc7ccd67d0d9", "title": "Podcast: “Structured concurrency”, with special guest Doug Gregor", "url": "https://www.swiftbysundell.com/podcast/99", "published_at": "2021-06-11T15:00:00+00:00" }, { "id": "01a08219-587f-709c-ace6-fc7cce29daaa", "title": "First looks at the new APIs and frameworks announced at WWDC21 on WWDC by Sundell & Friends", "url": "https://wwdcbysundell.com", "published_at": "2021-06-10T11:15:00+00:00" }, { "id": "01a08219-587f-709c-ace6-fc7cceb3e440", "title": "A Swift developer’s WWDC dreams - 2021 edition", "url": "https://www.swiftbysundell.com/articles/a-swift-developers-wwdc-dreams-2021", "published_at": "2021-06-03T19:40:00+00:00" }, { "id": "01a08219-587f-709c-ace6-fc7ccebe69f9", "title": "Podcast: “An entire spectrum of apps”, with special guest Sean Allen", "url": "https://www.swiftbysundell.com/podcast/98", "published_at": "2021-05-31T16:35:00+00:00" }, { "id": "01a08219-587f-709c-ace6-fc7ccf0e245d", "title": "Avoiding problematic cases when using Swift enums", "url": "https://www.swiftbysundell.com/articles/avoiding-problematic-enum-cases-in-swift", "published_at": "2021-05-27T14:20:00+00:00" }, { "id": "01a08219-587f-709c-ace6-fc7ccfe2fae9", "title": "Podcast: “Anything can happen during WWDC”, with special guest Ish ShaBazz", "url": "https://www.swiftbysundell.com/podcast/97", "published_at": "2021-05-21T17:20:00+00:00" } ] posts Claim your blog

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Swift by Sundell

swiftbysundell.com

2026

Why Swift is introducing a warning for weak captures within nested closures original ↗

30 Aug 2026

Swift protocols and the main actor original ↗

31 Jul 2026

2025

Building a design system at Genius Scan original ↗

31 Aug 2025

Deciding between ‘let’ and ‘var’ for Swift struct properties original ↗

23 Jul 2025

Decoding Swift types that require additional data original ↗

30 Jun 2025

Tips and tricks for when using SwiftUI’s ViewBuilder original ↗

30 May 2025

Using Swift’s defer keyword within async and throwing contexts original ↗

15 Apr 2025

Modern URL construction in Swift original ↗

31 Mar 2025

Swift by Sundell is back!original ↗

31 Mar 2025

2023

SwiftUI views versus modifiers original ↗

27 Feb 2023

Observing the content offset of a SwiftUI ScrollView original ↗

30 Jan 2023

2022

Podcast: “The evolution of Swift”, with special guest Nick Lockwood original ↗

19 Dec 2022

Podcast: “Swift concurrency in practice”, with special guest Ben Scheirman original ↗

18 Nov 2022

Combining opaque return types with primary associated types original ↗

12 Nov 2022

Podcast: “Responsive and smooth UIs”, with special guest Adam Bell original ↗

31 Oct 2022

Podcast: “Freelancing and WWDC22 highlights”, with special guest Donny Wals original ↗

17 Sept 2022

Podcast: “The role of system design”, with special guest Gui Rambo original ↗

31 Aug 2022

Sponsored: Essential Developer original ↗

13 Jul 2022

Podcast: “What’s new in SwiftUI in iOS 16?”, with special guest Natalia Panferova original ↗

11 Jul 2022

Switching between SwiftUI’s HStack and VStack original ↗

8 Jul 2022

Podcast: “Swift 5.7, generics, and the road to Swift 6”, with special guest Ben Cohen original ↗

10 Jun 2022

Using the ‘some’ and ‘any’ keywords to reference generic protocols in Swift 5.7 original ↗

8 Jun 2022

Swift 5.7’s new optional unwrapping syntax original ↗

7 Jun 2022

Rendering SwiftUI views within UITableView or UICollectionView cells on iOS 16 original ↗

7 Jun 2022

Podcast: “The evolution of SwiftUI”, with special guest Chris Eidhof original ↗

18 May 2022

Swift by Sundell turns five years old today! Here’s what’s next for the website and the podcast original ↗

5 May 2022

Podcast: “A framework and an app”, with special guest Simon Støvring original ↗

30 Apr 2022

Type placeholders in Swift original ↗

14 Apr 2022

Podcast: “Accessibility on Apple’s platforms”, with special guest Sommer Panage original ↗

21 Mar 2022

Abstract types and methods in Swift original ↗

15 Mar 2022

Sponsor: Judo original ↗

8 Mar 2022

Basics: Equality original ↗

4 Mar 2022

Podcast: “Where is Swift headed in 2022?”, with special guest JP Simard original ↗

27 Feb 2022

Writing testable code when using SwiftUI original ↗

17 Feb 2022

Combining protocols in Swift original ↗

9 Feb 2022

Memory management when using async/await in Swift original ↗

3 Feb 2022

Automatically retrying an asynchronous Swift Task original ↗

25 Jan 2022

Backgrounds and overlays in SwiftUI original ↗

20 Jan 2022

Basics: Loops original ↗

13 Jan 2022

Creating Combine-compatible versions of async/await-based APIs original ↗

5 Jan 2022

Two ways of capturing self strongly within a closure original ↗

2 Jan 2022

2021

Podcast: “The 2021 Season Finale”original ↗

30 Dec 2021

Building an asynchronous SwiftUI button original ↗

22 Dec 2021

Podcast: “Custom rendering”, with special guest James Thomson original ↗

20 Dec 2021

New Discover page: Concurrency original ↗

16 Dec 2021

Delaying an asynchronous Swift Task original ↗

13 Dec 2021

Lightweight dependency injection and unit testing using async functions original ↗

9 Dec 2021

Podcast: “Concurrency beyond app development”, with special guest Tim Condon original ↗

6 Dec 2021

What role do Tasks play within Swift’s concurrency system?original ↗

2 Dec 2021

Swift actors: How do they work, and what kinds of problems do they solve?original ↗

24 Nov 2021

Podcast: “Code maintenance”, with special guest Nick Lockwood original ↗

22 Nov 2021

Unit testing Swift code that uses async/await original ↗

16 Nov 2021

Using count vs isEmpty to check whether a collection contains any elements original ↗

11 Nov 2021

Building async and concurrent versions of forEach and map original ↗

10 Nov 2021

Podcast: “Concurrency and Swift-DocC”, with special guest Marin Todorov original ↗

4 Nov 2021

Using Swift’s concurrency system to run multiple tasks in parallel original ↗

3 Nov 2021

Podcast: “UIKit in 2021”, with special guest Ben Scheirman original ↗

30 Oct 2021

Making async system APIs backward compatible original ↗

28 Oct 2021

Swift’s new concurrency system gains backward compatibility in Xcode 13.2 original ↗

27 Oct 2021

New Discover page: Generics original ↗

25 Oct 2021

Specialized extensions using generic type constraints original ↗

21 Oct 2021

Building editable lists with SwiftUI original ↗

14 Oct 2021

Which of the SwiftUI APIs introduced in iOS 15 are backward compatible?original ↗

10 Oct 2021

Podcast: “Opportunities for optimization”, with special guest Christian Selig original ↗

7 Oct 2021

Programmatic navigation in SwiftUI original ↗

1 Oct 2021

Podcast: “Building various kinds of editors”, with special guest Marcin Krzyzanowski original ↗

28 Sept 2021

Previewing SwiftUI views in landscape original ↗

25 Sept 2021

Using Combine’s share operator to avoid duplicate work original ↗

17 Sept 2021

New Discover page: Codable original ↗

16 Sept 2021

Codable synthesis for Swift enums original ↗

9 Sept 2021

Sponsor: Paste original ↗

6 Sept 2021

Conditional compilation within Swift expressions original ↗

3 Sept 2021

Podcast: “The magic of Augmented Reality”, with special guest Roxana Jula original ↗

2 Sept 2021

Async sequences, streams, and Combine original ↗

26 Aug 2021

Podcast: “What’s new in Swift 5.5”, with special guest Antoine van der Lee original ↗

23 Aug 2021

Using static protocol APIs to create conforming instances original ↗

20 Aug 2021

Defining dynamic colors in Swift original ↗

15 Aug 2021

Using ‘@unknown default’ within switch statements original ↗

6 Aug 2021

Podcast: “WWDC21, two months later”, with special guest Jordan Morgan original ↗

2 Aug 2021

Throwing and asynchronous Swift properties original ↗

27 Jul 2021

Attaching property wrappers to function arguments original ↗

23 Jul 2021

Podcast: “Cross-platform SwiftUI”, with special guest Malin Sundberg original ↗

15 Jul 2021

Stroking and filling a SwiftUI shape at the same time original ↗

13 Jul 2021

Mutating and non-mutating Swift contexts original ↗

7 Jul 2021

Sponsor: ViRE original ↗

5 Jul 2021

Podcast: “A tower of capabilities”, with special guest Chris Lattner original ↗

2 Jul 2021

Dismissing a SwiftUI modal or detail view original ↗

29 Jun 2021

Calling async functions within a Combine pipeline original ↗

25 Jun 2021

Making SwiftUI views refreshable original ↗

24 Jun 2021

Basics: Availability checks original ↗

23 Jun 2021

Customizing how an external Swift type is encoded or decoded original ↗

22 Jun 2021

Connecting async/await to other Swift code original ↗

21 Jun 2021

Automatic conversions between Double and CGFloat values in Swift 5.5 original ↗

15 Jun 2021

Using the MainActor attribute to automatically dispatch UI updates on the main queue original ↗

13 Jun 2021

Podcast: “Structured concurrency”, with special guest Doug Gregor original ↗

11 Jun 2021

First looks at the new APIs and frameworks announced at WWDC21 on WWDC by Sundell & Friends original ↗

10 Jun 2021

A Swift developer’s WWDC dreams - 2021 edition original ↗

3 Jun 2021

Podcast: “An entire spectrum of apps”, with special guest Sean Allen original ↗

31 May 2021

Avoiding problematic cases when using Swift enums original ↗

27 May 2021

Podcast: “Anything can happen during WWDC”, with special guest Ish ShaBazz original ↗

21 May 2021