SwiftUI

I came across this interesting Stack Overflow question How can I make a simple circular button in SwiftUI in macOS? It’s interesting because all of the proposed solutions required hard-coding a frame size. I decided to experiment with how to make a circle that dynamically resizes to the size of 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…

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…

Saw this interesting question on Stackoverflow and thought I would answer it. The trick is to use `DynamicProperty as an intermediary as follows:

Update June 2022: windowing APIs have now been added so the code below might not be the best way to implement it. Here is how to open a new window or re-activate an existing one in SwiftUI on macOS. In your ContentView create a button and open a URL for Read more…