profile

SwiftLee Weekly by Antoine van der Lee

SwiftLee Weekly - Issue 255

Published 15 days ago • 5 min read

This week's SwiftLee Weekly covers:

  • Network Speed Control for Xcode's Simulator
  • Important App Store News
  • Creative Coding using Swift

Enjoy this week's SwiftLee Weekly!

THIS WEEK'S BLOG POST

​RocketSim 13 - Network Speed Control​

The next major release of RocketSim introduces a Network Speed Control. Similar to the Network Link Conditioner, but: it only affects your Simulator's networking conditions!

Find out what's more new in this release or check out this YouTube video:

video preview​

​

SPONSORED

​Master Mobile Monitoring SwiftUI Apps​

Monitor your app’s health with real-time insights into crash-free rates, start times, and more. Optimize performance and prevent user churn by addressing critical issues like app hangs, and ANRs. Learn how to keep your iOS app running smoothly across all devices by downloading this eBook.

CURATED FROM THE COMMUNITY

​Apps without trader status will be removed from the App Store in the EU - Latest News - Apple Developer​

This is the most important article to read this week. Ensure you’ve correctly set your trader status or your apps might be removed from the EU App Store.
​developer.apple.com​

​Introduction to Non-Copyable types​

What if you want a struct to be only used once? You can prevent it from being copied using non-copyable types in Swift. Vincent Pradeilles explains how it works.
​swiftwithvincent.com​

​Getting started with creative coding using Swift and SwiftUI​

I’ve never tried creative coding before, let alone using Swift. This might change after reading this in-depth article by Create with Swift.
​createwithswift.com​

​How to use cryptographic hash functions in CryptoKit for iOS security​

This article by Natascha Fadeeva came in handy: I literally have to update a hashing algorithm in my app this week. Apple’s CryptoKit framework is great for this.
​tanaschita.com​

​Attending Apple Intelligence and App Intents workshop at Paris​

What is it like to attend an Apple workshop? Thomas Durand shares his learnings on Apple Intelligence, App Intents, and the sample app they had to work with.
​blog.thomasdurand.fr​

SWIFT EVOLUTION

An overview of last week's Swift Proposal state changes. Check them out when they're in review, as it's your opportunity to influence the direction of Swift's future.

CODE SNIPPET OF THE WEEK

Using nonmutating in Swift

You can find this post on Twitter/X, LinkedIn, or Bluesky.

twitter profile avatar
Antoine v.d. SwiftLee 
Twitter Logo
@twannl
12:54 PM • Jan 20, 2025
7
Retweets
78
Likes
​

QUESTION OF THE WEEK

“
Do you offer any coding courses for Swift development?
— Anonymous

While my blog offers many articles and resources for free, I still often get asked whether I offer coding courses or even workshops. Up until now, I only released a course called "From Side Project to Going Indie," but I'm happy to share that I've started working on a new course focused on Swift Concurrency.

Three of the most popular articles of 2024 related to concurrency. This topic is close to my heart, and my articles are well-received.

Join the Swift Concurrency Course Waitlist

Be the first to know when the course goes live and get exclusive behind-the-scenes content and discounts. All you have to do is click the following button:

P.S. I'll also talk about Swift Concurrency at Deep Dish Swift and AppDevCon. Get your tickets while you still can!

Want to have your question answered next week? Ask your question via this form (anonymously) or reply to this email with your question.

EARN ROCKETSIM LIFETIME

Share and Earn RocketSim Lifetime & a 1-on-1 coaching session

Apple has recognized RocketSim as an Essential Developer Tool in the Mac App Store, and now you can get lifetime Pro access by sharing your unique referral link!
​​
How to get started:

​[RH_REFLINK GOES HERE]
​​
Rewards:

  • Earn your first reward after just 3 sign-ups!
  • Check your progress anytime using your referral dashboard.
  • The grand prize? A personalized 1-on-1 career coaching session!

Several subscribers have already claimed their rewards—will you be next?

Thank you so much for your support, and until next Tuesday,

Antoine

Thanks for being a SwiftLee subscriber!
​
All my content is available to you for free. Like what I do and want to support me?
​Buy me a coffee or try RocketSim, an Essential Developer Tool as recommended by Apple.

This newsletter is built with Kit.

SwiftLee Weekly by Antoine van der Lee

Join 20K+ subscribers who get weekly updates on Swift & SwiftUI development

A new SwiftLee article, code snippet, Swift Evolution updates, 5 top community articles, and a weekly answer to a question from the community to level up your Swift skills.

Read more from SwiftLee Weekly by Antoine van der Lee

This week's SwiftLee Weekly covers: Can you land an iOS job within 1 year? Winning an Apple Design Award Open-sourcing Swift Build Enjoy this week's SwiftLee Weekly! THIS WEEK'S BLOG POST Parameterized tests in Swift: Reducing boilerplate code Are you using Swift Testing already? If not, you might start doing so after trying out parameterized tests. They're quite a game changer for my tests and a great way to reuse a single test case. SPONSORED FREE iOS Architect Crash Course for a limited...

about 19 hours ago • 6 min read

This week's SwiftLee Weekly covers: Debugging the undebuggable Color mixing in SwiftUI Indie app launch learnings Enjoy this week's SwiftLee Weekly! THIS WEEK'S BLOG POST Network Link Conditioner: Simulating Slow Networking The Network Link Conditioner is part of Apple's additional Xcode tools and allows you to test your app under slow networking conditions. If you're testing your iOS apps for slow networking, there's a better alternative. SPONSORED Paywalls Made Easy – Superwall Huge apps...

8 days ago • 5 min read

This week's SwiftLee Weekly covers: SwiftUI Navigation Patterns Will AI replace app developers? Building crash-free apps Enjoy this week's SwiftLee Weekly! THIS WEEK'S BLOG POST SwiftUI Lists: Present rows of data explained with code examples Many of the apps built using SwiftUI use lists in some way. You can add sections, selection, or use different list styles. This week's article shows an overview of possibilities, including one modifier you must apply to use a custom list background....

22 days ago • 5 min read