iPhone Apps with SwiftUI

I am learning Swift in order to write some apps for iPhone/iPad that might surface in a later version of my courses. Ignore this section for now unless you are really keen.

Among many other things, an iPhone is a rich measurement platform, especially for inertial measurements that relate to so many mechanical applications. iOS 13 and XCode 11 bring a new way of describing the user interfaces to these apps, using SwiftUI as a declarative framework for apps that translate easily over many platforms. This part of the book is for my notes as I explore this approach…