Chef Marius Constantinescu cooked your goodies.

Week 393

Happy Thursday! We finally got the Beta 3 of Xcode 13 that everyone was expecting last week or even the week before. And I also found this 12 hour course from Apple for learning the basics of Xcode, SwiftUI and UIKit, which, as far as I can tell, is new, even though I haven’t seen it advertised as new by Apple. But then again, I haven’t seen it advertised at all by Apple 😅. Still, a very good resource if you want to start learning how to make iOS apps.

Tips from Twitter

• Avoid index math in Collections: Ole Begemann with a reminder to use the Collection APIs and try to avoid subscripting Collections with integer indexes directly.
• iOS 15 changes in cell prefetching: Tyler Fox has a great thread on what changed in cell prefetching for UICollectionView and UITableView in iOS 15
• SwiftUI enhancements in Xcode 13 beta 3: Federico Zanetello highlights the changes that Xcode 13 beta 3 brings to SwiftUI

Articles

• Mastering AsyncImage in SwiftUI, by @mecid
• How to translate SwiftUI applications, by @fassko
• Bridge from Combine to AsyncSequence - the plan, by @icanzilb
• Bridge from Combine to AsyncSequence - the code, by @icanzilb
• Diffable data source behavior changes and reconfiguring cells in iOS 15, by @jesse_squires
• Unit testing: the pragmatic guide on where to start, by @hybridcattt
• Make Debugger Console Output Stand Out, by @dasdom

Tools/Controls

• Swift Identified Collections - A library of data structures for working with collections of identifiable elements in an ergonomic, performant way., by @pointfreeco
• Hammer - iOS touch synthesis library, by @gabriellanata

Videos

• Mastering Stacks in SwiftUI (VStack, HStack, LazyStacks, SwiftUI Tutorial), by @tundsdev
• Swift Heroes 2021 videos, by @swiftheroes_it

Contributors

• zntfdr, mecid, tundsdev, fassko, icanzilb, michael_tigas, sarunw