Implementing the StoreKit framework in SwiftUI — A quick disclaimer: This article is based on iOS 13 and Swift 5.x. I should also mention for beginners in this domain that the StoreKit framework can only be used if you are a registered Apple developer. I put together a more recent one here. StoreKit will not work on…

Implementing new features in StoreKit — Before you read this story, note an updated version [as in code] can be found here. Subscriptions, Receipts, and StoreKit in iOS 14 The gold standard of in-app purchases and subscriptionsmedium.com Much of the buzz at WWDC2020 was given over to SwiftUI 2.0 and ARKit, so you should forgive yourself for missing a seismic change to the StoreKit framework — a change that will make…

A look at some different ways to link a class with a SwiftUI interface — I was playing around with SpriteKit, and it occurred to me that it might be a good exercise to remind myself of how many different ways I could link my SwiftUI code with my SpriteKit scene/class. I don’t present these in any order, preference, or recommendation; I show them in…

A second stab at updating Apple’s SceneKit demo — Last week I published an article on rebuilding Apple’s WWDC 2017 SceneKit demo using SwiftUI. A paper that you can find here. Within that article, I rebuilt the controls for the game using SwiftUI, a semi-successful rebuild in which I made one fatal error. I split the SCNSceneRendererDelegate code into…

An attempt at updating Foxy 2 game code — Sadly, the last time Apple talked about SceneKit at any real length was in 2017, although it did make an appearance of a sort in 2018. In 2017 they did an excellent presentation with a rocking demo that looked really good, foxy2. Fortunately, the demo code is still available and…

Creating the missing component of the new Apple Charts library — I started this article before the WWDC 2022, an event with a sexy new framework announced by Apple called Charts. I was briefly worried as I heard the announcement in the latest SwiftUI talk that I may have been beaten to the post, but I felt better when I realized…

Continuing the adventure on SceneKit capabilities — Around the same time they were making the Alien movie, there was a second sci-fi in production that would become a $10 billion dollar franchise that Disney recently rebooted. That movie came out in 1977, and it was called Star Wars. With a company behind it that would go on…

Continuing my investigation into SceneKit — A while back, I wrote a piece about the Swift Algorithms library. A set of code primitives developed by Apple that — well — one day may make it into the core Swift language. Implementations that are probably better pieces of code than you or I would have time to…

Using a fantastic scene from The Alien series This month in 1979, Sigourney Weaver starred in a lead role for a sci-fi horror movie that would create a franchise of films spanning three decades, the Alien series. During the movie, there is a sequence, just 30 seconds of it, that…