This week's SwiftLee Weekly covers: Glass Views & Animations Singletons & Swift Concurrency Structured experiments Enjoy this week's SwiftLee Weekly! THIS WEEK'S BLOG POST SwiftUI Architecture: Structure Views for Reusability and Clarity I often find myself restructuring views after time happened and ContentView became too large. The techniques I've learned over the years are explained in this week's blog post. For those that are more visually oriented, I've also published a video for this...
8 days ago • 5 min read
This week's SwiftLee Weekly covers: My AI Agents journey The importance of Swift Migration Tooling Custom ViewModifiers are useless Enjoy this week's SwiftLee Weekly! THIS WEEK'S BLOG POST Why Swift Migration Tooling Matters Manually migrating to Swift's upcoming features is a bad idea. In fact, it can suddenly result in your code running more on the main thread, blocking the UI, and decreasing user experience. I'm using this typical example in a detailed post on how you can benefit from...
15 days ago • 5 min read
This week's SwiftLee Weekly covers: Programmatic navigation in SwiftUI The 5 biggest async/await mistakes The best mobile app monitoring product Enjoy this week's SwiftLee Weekly! THIS WEEK'S BLOG POST The 5 biggest mistakes iOS Developers make with async/await After migrating 20+ packages for RocketSim and developing a 65+ lesson course on Concurrency, I concluded that a few mistakes are most common. This led me to decide to spend over 50 hours offering a free 5-day email course to help you...
22 days ago • 4 min read
This week's SwiftLee Weekly covers: Next-level Xcode Simulator recordings Additional iOS 26 documentation for Agents.md Swift Package Manager traits Enjoy this week's SwiftLee Weekly! THIS WEEK'S BLOG POST Derived Data: 5 Things iOS Developers Do Wrong It's one of the most important directories when it comes down to development with Xcode: The Derived Data folder. Some of you might know all about it, some will hear about it for the first time in this newsletter. I've explored it quite a bit...
29 days ago • 4 min read
This week's SwiftLee Weekly covers: Apple Docs for LLMs Supporting async calls in defer Physics-driven moti Enjoy this week's SwiftLee Weekly! THIS WEEK'S BLOG POST App Store Optimization: Real-world Best Practices I started sharing this in last week's What I'm working on and it turned out way to much to share in just this newsletter. This week's article is a true piece of art if you like reading real-world journeys of app developers. I'm sharing my experience and results of RocketSim's App...
about 1 month ago • 5 min read
This week's SwiftLee Weekly covers: App Store Optimization - Screenshots Observation in Swift deep dive Memory Integrity Enforcement Enjoy this week's SwiftLee Weekly! THIS WEEK'S BLOG POST Introducing Diagnostics: Improved Debugging and User Support If you've been reporting issues to me for RocketSim, you might have noticed the HTML attachment to your emails. Today, I'm telling you all about these reports and how they can streamline your app's support channel. This could be a way to reduce...
about 1 month ago • 5 min read
This week's SwiftLee Weekly covers: Swift 6.2' new String Interpolation feature When should you use an actor? A better way of matching strings in tests You've might noticed I'm sending this out later than normally, and that's for a reason! It's Apple event day. Here are the most important links for this week: Xcode 26 RC 1 (Apple Silicon) Xcode 26 RC 1 And the most important date: September 15th is OS launch day! If you want your app's update to be available on day 1 of iOS, macOS, iPadOS,...
about 2 months ago • 5 min read
This week's SwiftLee Weekly covers: Dealing with Xcode migrations Debugging Swift Concurrency Controlling warnings in Swift Packages Enjoy this week's SwiftLee Weekly! THIS WEEK'S BLOG POST @ViewBuilder usage explained with code examples It's one of the most used result builders in SwiftUI: @ViewBuilder. Even if you're new to this attribute—you're already using it if you're writing SwiftUI code. Unde SPONSORED Fastlane alternative - Codemagic CLI tools Are you tired of Ruby and Fastlane...
about 2 months ago • 5 min read
This week's SwiftLee Weekly covers: Raw Identifiers in Swift Using a WebView in SwiftUI Using App Intents correctly Enjoy this week's SwiftLee Weekly! THIS WEEK'S BLOG POST Swift Computed Property: Code Examples While this is a basic in Swift, there are some nice additions since recently. For example, you can now use async and typed throws in the getter of a Swift computed property. SPONSORED Full iOS coverage. Fast If your test suite is missing critical flows or isn’t up to date, you’re at...
2 months ago • 5 min read