First visit the Apple Events web page and find the link to the stream you want to download, e.g. the link for the iPhone 14 event from September 2022 looks like this: Now you need to install the yt-dlp command line utility, in Terminal type: yt-dlp is a fork of Read more…
Update 10/4/2024: It appears in Xcode 15.3 nothing special is required and can use await right next to the hello world print. TLDR: add @main and rename main.swift To create a command line tool in Xcode 14.3 that uses async/await there are a few tweaks required. When we create the Read more…
Learning SwiftUI can be tricky because it has a very different design to previous UI frameworks. Many make the mistake of trying to apply old design patterns which are not really compatible because of SwiftUI’s use of value semantics and its diffing algorithm – most developers from UIKit, Java or Read more…
Seems to me some developers think that @MainActor means “always main thread” and has the same behaviour as DispatchQueue.main.async which I don’t think is try. For example, the code below outputs: Because the Database class is not marked as @MainActor then loadModel will in fact be on a background thread, Read more…
I came across an interesting Stack Overflow question about how to support List selection of different types when using NavigationSplitView when in regular width, e.g. on iPad landscape. This problem doesn’t arise with NavigationStackView because multiple ForEach can simply iterate an array of each value and then there is a Read more…
If you need to show multiple sheets in SwiftUI it is best to use the framework features to your advantage. Rather than try to abstract the problem into a generic coordinator object, which you then have to unbundle again to customise each circumstance, you can simply create multiple small subview Read more…
I designed a better way to nest property wrappers than other examples I’ve seen in this article and this Stack Overflow question. The sample below is a redesigned version of the code in the question, which I also posted as an answer. Rather than use multiple property wrappers on the Read more…
I’ve seen a lot of code shared online getting the Coordinator wrong so thought I’d share an example of how I believe the Coordinator should be done. makeView returning context.coordinator.textView is taken from Fruta’s PaymentButton.swift but the ideas of the lazy var and textDidChange closure are my own. This means Read more…
There are not many examples of correctly using a Coordinator with UIViewRepresentable so thought I’d share one on mine. You’ll see many examples including some from Apple that return Coordinator(self) which I believe is a mistake because the UIViewRepresentable is a struct value type which is recreated on every state Read more…
It’s hard to find this feature in the documentation so thought I’d share an example here.