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Keith Harrison @kharrison

I write about iOS development at useyourloaf.com. Also (mostly) at twit.social/@kharrison

Joined December 2007
  • Tweets 191
  • Following 57
  • Followers 2,931
36 Photos and videos
Using the Entry macro to reduce boilerplate when adding custom values to the SwiftUI environment #iOSDev #SwiftUI useyourloaf.com/blog/entry-m…

Entry Macro for Custom SwiftUI Environment Values

The Entry macro reduces the boilerplate when customizing the SwiftUI environment.

useyourloaf.com
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Using if and switch as expressions #SwiftLang #iosdev useyourloaf.com/blog/swift-s…

Swift Switch And If Expressions

Using a switch or if statement as an expression.

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Xcode bookmarks useyourloaf.com/blog/xcode-b… #Xcode #iOSDev

Xcode Bookmarks

Xcode 15 added a new way to bookmark source code annotations and search queries.

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Turning on strict concurrency checking doesn't protect you from accidentally blocking the main actor. Something I find way too easy to do as I learn how to use Swift Concurrency. #SwiftLang #iOSDev #SwiftUI useyourloaf.com/blog/swiftui…

SwiftUI Tasks Blocking the MainActor

I find it way too easy to accidentally block the MainActor, and hang the user interface, with a long-running task that I thought was on a background thread.

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Still using print statements to debug your App. Maybe it's time you moved to the unified OS logging framework? #iOSDev #Xcode useyourloaf.com/blog/xcode-c…

Xcode Console and Unified Logging

If you're still using print statements to debug your App it's time you moved to the unified OS logging framework.

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Silencing the Core Data CloudKit sync debug messages that fill the Xcode console #iOSDev #CoreData #SwiftData useyourloaf.com/blog/disabli…

Disabling Core Data CloudKit Logging

How do you stop the Core Data CloudKit sync logging from filling the Xcode console?

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I never fully understood what was going on using Xcode Intent Definition files to create app shortcuts. The App Intents framework (iOS 16) gets rid of the config files but it's still a lot to learn. #iOSDev useyourloaf.com/blog/getting…

Getting Started With App Intents

How to get started creating shortcuts and Siri actions with the App Intents framework.

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Let’s get the year started with a couple of #SwiftData bug reports about fetching pending changes useyourloaf.com/blog/swiftda…

SwiftData Fetching Pending Changes

When you fetch data using Core Data or SwiftData it includes pending changes by default.

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There are at least three ways to delete data from a SwiftData store. Here’s a quick recap. useyourloaf.com/blog/swiftda…… #iOSDev #SwiftData
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Each year I think I’ve done the last update to my Auto Layout book but Apple manages to change just enough to tempt me. The latest edition is updated for Xcode 15 and iOS 17. For 20% off with code BLACKFRIDAY follow this link kharrison.gumroad.com/l/albo… #iOSDev

Modern Auto Layout

Learn Modern Auto Layout For iOSUsing Auto Layout? How many of these do you recognize?⚠️ Randomly adding and removing constraints to get the layout you want⚠️ Changing content hugging and compressi...

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In iOS 17, Apple added control over which column shows when a Split View collapses to a single column. #iOSDev #SwiftUI useyourloaf.com/blog/swiftui…

SwiftUI SplitView Compact Column Control

In iOS 17, Apple added control over which column shows when a Split View collapses to a single column.

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iOS 17 adds support for custom UIKit traits that bridge to the SwiftUI environment #iOSDev #SwiftUI useyourloaf.com/blog/custom-…

Custom Traits and SwiftUI

Starting with iOS 17 you can add your own custom traits to the UIKit trait environment and have them interoperate with the SwiftUI environment.

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Apple deprecated traitCollectionDidChange in iOS 17, replacing it with a method to register for specific trait changes. #iOSDev #UIKit useyourloaf.com/blog/registe…

Registering For Trait Changes

Apple deprecated traitCollectionDidChange in iOS 17, replacing it with a method to register for specific trait changes.

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Everyone gets the dynamic island but not much else is new with the iPhone 15 screen sizes useyourloaf.com/blog/iphone-… #iOSDev

iPhone 15 Screen Sizes

Here's a recap of what's new with the 2023 iPhone 15 screen sizes.

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Turning on strict concurrency checking for all targets in a Swift package: useyourloaf.com/blog/strict-… #iOSDev #SwiftLang

Strict Concurrency Checking in Swift Packages

How do you enable strict concurrency checking in a Swift Package?

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There's not much (any?) documentation on how you run background SwiftData tasks. Here's what works for me. #SwiftData #iOSDev useyourloaf.com/blog/swiftda…

SwiftData Background Tasks

How do you perform a SwiftData operation in the background?

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In iOS 17, Apple deprecated the onChange(of:perform) view modifier replacing it with two new variations. #iOSDev #SwiftUI useyourloaf.com/blog/swiftui…

SwiftUI onChange Deprecation

Apple made changes to the SwiftUI onChange handler in iOS 17.

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Migrating to Observable useyourloaf.com/blog/migrati… #iOSDev #SwiftUI

Migrating to Observable

A quick guide to migrating an ObservableObject to Observable.

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Notes from my WWDC23 Core Data lab, mostly about CloudKit sync but touching on SwiftData and a few other things useyourloaf.com/blog/wwdc23-… #WWDC23 #CoreData

WWDC23 Core Data Lab Notes

Lab notes from my Core Data lab at WWDC23.

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WWDC23 SwiftData Lab Notes #WWDC23 #SwiftData #iOSDev useyourloaf.com/blog/wwdc23-…

WWDC23 SwiftData Lab Notes

Notes from my WWDC23 SwiftData lab.

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