Swift Dev Journal

The following article provides an introduction to reading the flame graph in Instruments:

https://swiftdevjournal.com/posts/instruments-flame-graph-intro/

#Xcode

Most of the article covers using localizable strings in SwiftUI apps. https://mastodon.social/@jordanmorgan/115424000732860208

Swift Enums: Write Better, Safer, and Cleaner Code Swift enums are among Swift’s most powerful tools, adding structure, safety, and clarity to code that often leans on messy

The following article provides a nice introduction to Swift enums:

https://bugfender.com/blog/swift-enums/

#Swift

The following article provides some nice examples of creating toolbars in SwiftUI Mac apps:

https://ohanaware.com/swift/macOSToolbarExamples.html

#SwiftUI #MacDev

Using rich text in the TextEditor with SwiftUI Explore the usage of rich text within the TextEditor in SwiftUI using AttributedString.

The following article provides an introduction on supporting rich text editing with SwiftU's TextEditor view:

https://www.createwithswift.com/using-rich-text-in-the-texteditor-with-swiftui/

#SwiftUI

If you're wondering where to find the Library in Xcode 26 so you can access code snippets and storyboard UI elements, choose View > Show Library in Xcode or press Cmd-Shift-L.

#Xcode

Contextmenu https://wesleydegroot.nl/blog/contextmenu #SwiftUI# Contextmenu

The following article shows how to use Instruments to find the slow spots in your app's code:

https://swiftdevjournal.com/posts/cpu-profiler/

#Xcode

The following article shows how to run a command-line program from inside a Mac GUI app:

https://swiftdevjournal.com/running-a-command-line-program-from-a-mac-app/

#MacDev

Performing search with SwiftData in a SwiftUI app Learn how to combine SwiftData queries with the seachable modifier on SwiftUI.

The following article shows how to support search in a SwiftUI app that uses SwiftData:

https://www.createwithswift.com/performing-search-with-swiftdata-in-a-swiftui-app/

#SwiftData #SwiftUI

Time Profiler instrument tip: click the Self Weight column heading to bring the functions where your app spends the most time to the top of the call tree view.

If you want to learn more about Instruments, check out my book Profiling Swift Apps. You can learn more about the book at the following […]

The following article shows how to open document-like windows using SwiftUI's WindowGroup:

https://swiftdevjournal.com/posts/swiftui-window-group/

#SwiftUI

Are you not sure how to use the flame graph in Instruments? The following article should help you get started with the flame graph:

https://swiftdevjournal.com/posts/instruments-flame-graph-intro/

#Xcode

This looks like an interesting way to make apps for non-Apple platforms using SwiftUI-like syntax. https://techhub.social/@mvniekerk/115286188495170439

Implementing drag and drop with the SwiftUI modifiers Learn how to implement drag and drop features within your SwiftUI apps.

The following article shows how to use drag and drop in SwiftUI apps:

https://www.createwithswift.com/implementing-drag-and-drop-with-the-swiftui-modifiers/

#SwiftUI

The following article covers how to show an alert from a menu item in a SwiftUI Mac app:

https://swiftdevjournal.com/posts/show-swiftui-alert-from-mac-menu/

#SwiftUI #MacDev

If you don’t have the time or money for the Swift Virtuoso course, my new book, Profiling Swift Apps, will show you how to use Instruments. Learn more about the book at the following link:

https://swiftdevjournal.com/instruments-book/

#Xcode https://mastodon.social/@jamesdempsey/115265908536970962

I have made my Cocoa intro book free to download. If you ever wanted to make Mac apps with AppKit, this book can help you get started. Download the book at the following link:

https://swiftdevjournal.com/swift-dev-journal-intro-to-cocoa/

#MacDev

Misaligned SwiftUI text label Misaligned SwiftUI text label. GitHub Gist: instantly share code, notes, and snippets.

@helge The following gist without specifying the maxWidth makes the starting position of the labels depend on the length of the label text:

https://gist.github.com/SwiftDevJournal/265612aff3465baae4808cd3a20f0f69

TIL in SwiftUI: to get text labels in a VStack left-aligned, you have to set the stack's maximum width to infinity. Otherwise the starting position depends on the amount of text shown.

.frame(maxWidth: .infinity, alignment: .leading)

#SwiftUI

If the new SwiftUI instrument in Xcode 26 doesn't show any data after profiling, make sure you stop profiling from Instruments. When I stopped profiling by quitting the app, the SwiftUI instrument showed no data. When I clicked the Stop button in Instruments, the instrument showed data.

#Xcode

Instruments tip: to find your app's largest memory allocations, press Cmd-3 to open the allocations list. Sort the table by size to bring the largest allocations to the top of the table.

If you want to learn more about Instruments, check out my book Profiling Swift Apps. You can learn more […]

Using TextRenderer to create highlighted text [`TextRenderer`](https://developer.apple.com/documentation/swiftui/textrenderer) is a new protocol introduced at WWDC 2024 which lets us enhance how text is rendered in SwiftUI. In this small post, I want to show how to create a view that enables you...

The following article shows how to highlight text in a SwiftUI app:

https://alexanderweiss.dev/blog/2024-06-24-using-textrenderer-to-create-highlighted-text

#SwiftUI

Creating custom layouts with SwiftUI Understand how to create custom layouts with the Layout protocol in SwiftUI.

The following article shows how to create custom SwiftUI layouts:

https://www.createwithswift.com/creating-custom-layouts-with-swiftui/

#SwiftUI

Lazy-loading views with LazyVStack in SwiftUI Understand lazy loading to load views only when they appear in a SwiftUI app.

The following article introduces SwiftUI lazy VStacks:

https://www.createwithswift.com/lazy-loading-views-with-lazyvstack-in-swiftui/

#SwiftUI

The following article talks about a developer's experience making an iOS and Mac app with SwiftUI:

https://elegantchaos.com/2025/09/09/swiftui-action-abstraction.html

#SwiftUI

Swift Error Handling: Try, Throw & Do-Catch Explained Introduction to Swift error handling As developers, we know errors are unavoidable. Invalid inputs, failed network calls, or missing files

The following article provides a nice introduction to Swift error handling:

https://bugfender.com/blog/swift-error-handling/

#Swift

Profiling Swift Apps Find and Fix Problems with Your Code Using InstrumentsProfiling Swift Apps is a book that helps iOS and Mac developers make sense of the profiling data Instruments generates. The book shows you how to find the most important information in the Instru...

This is a reminder that today is the last day the Profiling Swift Apps book launch sale. The sale ends at 11:59 PM (23:59) Eastern time.

Buy book link: https://payhip.com/b/6Z4LG

#Xcode

Just submitted the final beta for LifePace, my new habit tracker.

TestFlight, details & video: https://cdf1982.com/lifepace/lifepace-presskit.html

Really proud of this one: juggling 4 platforms (iPhone, iPad, Mac & Watch) with Shortcuts, Widgets, Complications, Liquid Glass, FoundationModels […]

The following article shows how to use the CPU Profiler instrument to find the slow spots in your app code:

https://swiftdevjournal.com/posts/cpu-profiler/

#Xcode #iOSDev #MacDev