SwiftUI: A Convenient but Slow Framework

2023/08/26

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The article discusses the convenience and performance limitations of SwiftUI, a framework for building user interfaces in Swift. The author shares their experience of building a calendar app using SwiftUI and highlights the challenges they faced. They praise the convenience of SwiftUI, mentioning features like light and dark mode support, customizable color schemes, keyboard navigation, and fluid animations. However, they also point out that SwiftUI's LazyHGrid element was not suitable for their use case and they had to create their own grid using HStacks and VStacks. Despite some challenges, the author found building with SwiftUI surprisingly easy. This article serves as a reminder for SwiftUI engineers to consider the performance limitations and pain points that developers may encounter while using the framework.