Keith Harrison
@useyourloaf.com
I write about iOS development at useyourloaf.com.
Reposted by Keith Harrison
After a number of truly awful attempts, I have a post about "Non-Sendable First Design" that I think I can live with.
I like this approach and I think you might like it too. It's simple, flexible, and most importantly, it looks "normal".
www.massicotte.org/blog/non-sen...
I like this approach and I think you might like it too. It's simple, flexible, and most importantly, it looks "normal".
www.massicotte.org/blog/non-sen...
Non-Sendable First Design
The easiest way to design concurrent systems in Swift was hiding in plain sight.
www.massicotte.org
December 17, 2025 at 7:02 PM
After a number of truly awful attempts, I have a post about "Non-Sendable First Design" that I think I can live with.
I like this approach and I think you might like it too. It's simple, flexible, and most importantly, it looks "normal".
www.massicotte.org/blog/non-sen...
I like this approach and I think you might like it too. It's simple, flexible, and most importantly, it looks "normal".
www.massicotte.org/blog/non-sen...
Treating Warnings as Errors in Swift Packages #swiftlang useyourloaf.com/blog/treatin...
Treating Warnings As Errors In Swift Packages
In Swift 6.2, Swift Packages give us control over which compiler warnings to treat as errors.
useyourloaf.com
September 4, 2025 at 9:49 AM
Treating Warnings as Errors in Swift Packages #swiftlang useyourloaf.com/blog/treatin...
Reposted by Keith Harrison
🚨 PSA for all of you updating your apps for iOS 26:
When you build using Xcode 26, the large navigation title gets broken (no left padding) when running on iOS 18.
🔗 Link to a fix below.
When you build using Xcode 26, the large navigation title gets broken (no left padding) when running on iOS 18.
🔗 Link to a fix below.
August 31, 2025 at 12:59 PM
🚨 PSA for all of you updating your apps for iOS 26:
When you build using Xcode 26, the large navigation title gets broken (no left padding) when running on iOS 18.
🔗 Link to a fix below.
When you build using Xcode 26, the large navigation title gets broken (no left padding) when running on iOS 18.
🔗 Link to a fix below.
Reposted by Keith Harrison
Anyone hit problems enabling approachable concurrency (or flags in its grouping) aside from the migration step required for NonisolatedNonsendingByDefault? Not talking about default isolation here.
I haven't encountered any anywhere and I'm curious. Seems like it is going quite smooth so far.
I haven't encountered any anywhere and I'm curious. Seems like it is going quite smooth so far.
August 31, 2025 at 11:14 AM
Anyone hit problems enabling approachable concurrency (or flags in its grouping) aside from the migration step required for NonisolatedNonsendingByDefault? Not talking about default isolation here.
I haven't encountered any anywhere and I'm curious. Seems like it is going quite smooth so far.
I haven't encountered any anywhere and I'm curious. Seems like it is going quite smooth so far.
Swift Raw Identifiers
Swift 6.2 adds raw identifiers to the language.
useyourloaf.com
August 21, 2025 at 8:23 AM
When Observable replaced ObservableObject in iOS 17 it was missing a way to stream changes. That was fixed in iOS 26 (swift 6.2). #iosdev #swiftui useyourloaf.com/blog/swift-o...
Swift Observations AsyncSequence for State Changes
Swift 6.2 introduces a new Observations type to stream state changes from an Observable type.
useyourloaf.com
August 6, 2025 at 5:48 PM
When Observable replaced ObservableObject in iOS 17 it was missing a way to stream changes. That was fixed in iOS 26 (swift 6.2). #iosdev #swiftui useyourloaf.com/blog/swift-o...
June 20, 2025 at 12:22 PM
How do you create a SwiftUI picker that works with optional selection so that not picking a value is possible? #iosdev #swiftui useyourloaf.com/blog/swiftui...
SwiftUI Picker With Optional Selection
Creating a SwiftUI picker that works with optional selection.
useyourloaf.com
May 14, 2025 at 5:53 PM
How do you create a SwiftUI picker that works with optional selection so that not picking a value is possible? #iosdev #swiftui useyourloaf.com/blog/swiftui...
How do you write SwiftData predicates to query for parent relationships? #iOSDev #SwiftData #SwiftUI useyourloaf.com/blog/swiftda...
SwiftData Predicates For Parent Relationships
How do you write SwiftData predicates to query for parent relationships.
useyourloaf.com
May 9, 2025 at 9:58 AM
How do you write SwiftData predicates to query for parent relationships? #iOSDev #SwiftData #SwiftUI useyourloaf.com/blog/swiftda...
Reposted by Keith Harrison
UIApplication delegate deprecation coming in iOS 19 SDK
lapcatsoftware.com
April 19, 2025 at 3:42 PM
My notes on the surprising (to me) scope of SwiftUI keyboard shortcuts #SwiftUI #iOSDev useyourloaf.com/blog/swiftui...
SwiftUI Keyboard Shortcut Scope
A SwiftUI keyboard shortcut remains active as long as the control it's attached to is still in the view hierarchy, even when not onscreen.
useyourloaf.com
April 11, 2025 at 10:10 AM
My notes on the surprising (to me) scope of SwiftUI keyboard shortcuts #SwiftUI #iOSDev useyourloaf.com/blog/swiftui...
How do you change the accessibility language used by VoiceOver with SwiftUI? #SwiftUI #iOSDev
useyourloaf.com/blog/swiftui...
useyourloaf.com/blog/swiftui...
SwiftUI Accessibility Language
How do you change the accessibility language used by VoiceOver with SwiftUI?
useyourloaf.com
April 2, 2025 at 9:35 AM
How do you change the accessibility language used by VoiceOver with SwiftUI? #SwiftUI #iOSDev
useyourloaf.com/blog/swiftui...
useyourloaf.com/blog/swiftui...
Changing the default behaviour of a scroll view to center content only when it’s smaller than the scroll view container #SwiftUI #iOSDev useyourloaf.com/blog/swiftui...
SwiftUI Default Scroll Anchor
Changing the default behaviour of a scroll view to center content only when it's smaller than the scroll view container.
useyourloaf.com
March 26, 2025 at 4:37 PM
Changing the default behaviour of a scroll view to center content only when it’s smaller than the scroll view container #SwiftUI #iOSDev useyourloaf.com/blog/swiftui...
Is there no way to set the accessibility language for a SwiftUI view? UIKit has the accessibility language property but there’s no equivalent in SwiftUI. I’ve seen people using AttributedString with the .accessibilitySpeechLanguage attribute but I can’t get it to work. #SwiftUI #iOSDev
March 25, 2025 at 11:33 AM
Swift Testing Completion Handlers
How do you test completion handlers with Swift Testing.
useyourloaf.com
March 13, 2025 at 10:07 AM
Provisional authorzation to send local user notifications. A feature old enough (iOS 12) for me to forget it exists. #iOSDev useyourloaf.com/blog/provisi...
Provisional Authorization of User Notificatons
Requesting provisional authorization to send local user notifications.
useyourloaf.com
February 13, 2025 at 5:42 PM
Provisional authorzation to send local user notifications. A feature old enough (iOS 12) for me to forget it exists. #iOSDev useyourloaf.com/blog/provisi...
How do you change the image a SwiftUI button shows when pressed? #SwiftUI #iOSDev useyourloaf.com/blog/swiftui...
SwiftUI Button Image When Pressed
How do you change the image a SwiftUI button shows while the user is pressing the button?
useyourloaf.com
January 29, 2025 at 8:05 PM
How do you change the image a SwiftUI button shows when pressed? #SwiftUI #iOSDev useyourloaf.com/blog/swiftui...
When the user chooses the reduce motion accessibility setting you should avoid large animations with objects that fly in/out of the screen #iOSDev #SwiftUI useyourloaf.com/blog/reducin...
Reducing Motion of Animations
Apply the reduce animation setting to your SwiftUI animations.
useyourloaf.com
January 23, 2025 at 10:53 AM
When the user chooses the reduce motion accessibility setting you should avoid large animations with objects that fly in/out of the screen #iOSDev #SwiftUI useyourloaf.com/blog/reducin...
Migrating XCTest to Swift Testing
A quick guide to migrating XCTest unit test to Swift Testing.
useyourloaf.com
December 10, 2024 at 10:54 AM
Reposted by Keith Harrison
Ok, it's time for another one of these "Swift concurrency step-by-step" posts.
It explores working with types that are not Sendable. All based around reading a model from some data store.
www.massicotte.org/step-by-step...
It explores working with types that are not Sendable. All based around reading a model from some data store.
www.massicotte.org/step-by-step...
Concurrency Step-by-Step: Reading from Storage
Not too long ago, I was re-reading an “introductory” post I wrote. Honestly, I could barely make it though. I guess a big part of that is that my own defintion of “introduction” when it comes to concu...
www.massicotte.org
November 30, 2024 at 12:25 PM
Ok, it's time for another one of these "Swift concurrency step-by-step" posts.
It explores working with types that are not Sendable. All based around reading a model from some data store.
www.massicotte.org/step-by-step...
It explores working with types that are not Sendable. All based around reading a model from some data store.
www.massicotte.org/step-by-step...
Reposted by Keith Harrison
The Department of Transport has a survey on how to integrate better. Tell them what you want (I want cycleways that connect to each other that are safe for children to use, and trains with a cadence high enough you don't need to use a timetable, like I had in London) www.smartsurvey.co.uk/s/PG2JMU/
Integrated National Transport Strategy: a call for ideas
Please take the time to complete our survey. Your feedback is important.
www.smartsurvey.co.uk
November 28, 2024 at 11:00 PM
The Department of Transport has a survey on how to integrate better. Tell them what you want (I want cycleways that connect to each other that are safe for children to use, and trains with a cadence high enough you don't need to use a timetable, like I had in London) www.smartsurvey.co.uk/s/PG2JMU/
SwiftUI Charts Plotting Functions
In iOS 18 SwiftUI charts can plot functions.
useyourloaf.com
November 27, 2024 at 4:13 PM
Automatic Trait Tracking
UIKit automatically tracks trait changes starting in iOS 18.
useyourloaf.com
November 15, 2024 at 9:50 AM
Reposted by Keith Harrison
Ok let’s try something! For my new bluesky friends, I’m gonna spent ~ the whole day tomorrow answering Swift concurrency questions here.
Do your worst!
#SwiftLang
Do your worst!
#SwiftLang
November 11, 2024 at 10:04 PM
Ok let’s try something! For my new bluesky friends, I’m gonna spent ~ the whole day tomorrow answering Swift concurrency questions here.
Do your worst!
#SwiftLang
Do your worst!
#SwiftLang