While working on updating iOS screenshots for the App Store recently, I discovered that simctl status_bar is still broken. And unfortunately, I do not expect...

The GitHub issue I created for myself was Tap a photo to load it in Apple Photos. It was supposed to be a 10 minute thing. One of those tasks you quickly knock off and then feel good about yourself because you’ve been so productive.

How to load and use local Stable Diffusion models in a Swift app using CoreML and ml-stable-diffusion.

Explore Core Data relationships: types (one-to-one, one-to-many, many-to-many), inverse relationships, delete rules, and optimization for efficient data management.

How to create Conway's Game of life with SwiftUI

If you would like to start learn graph algotithms I hope this post can help you with finding some basic information about it. With shared playthrounds and examples you can check them it action by yourself.

You’re more of a video kind of person? I’ve got you covered! Here’s a video with the same content than this article 🍿

In this article I will show you how to achieve a strong compile-time guarantee that your code is correct. I will demonstrate how the internal structure of your types can hold unbreakable rules within them, known as invariants. Through real-world examples…

In this article I will introduce you to Typestate pattern, popularised by Rust language, now available in Swift 5.9. You will see how the combination of generic constraints and Swift's new memory ownership model allows you to write bulletproof code.

explore how MVVM fits into SwiftUI, how to leverage its advantages, and how it compares to Clean Swift and the Composable Architecture.

Explore Swift's @available annotation and #unavailable directive for managing function availability, ensuring adaptable, robust code.

iOS Availability 编译器实现机制解析，探讨编译器提供的Availability机制能带来哪些保障。

Get information and resources on building, testing, and submitting visionOS apps to the App Store.

We have back-ported Swift 5.9’s observation tools to work on Apple platforms going back almost 4 years ago! Start using it today even if you cannot target iOS 17.

Learn how to bring your App Icon in visionOS

Making use of ViewBuilder in SwiftUI

The second iteration of the StoreKit framework was the most significant change in my apps during the last few years. The recent version of the StoreKit framework has fully adopted Swift language features like async and await. This week, we will talk about…