Ch. 6.20 - Programmatically Switch from App to Settings
NOTE: Xcode 13 for iOS 15 simulator doesn't seem to be showing the simulated app under Settings, but if you run this on a device, you should see settings where you can turn location services off and on, as shown in the video.
Learn to move from app to device privacy settings using UIApplication.openSettingsURLString and UIApplication.shared.open(URL). Also learn to work with multi-button alerts w/AlertAction completion handlers.
Part of the "WeatherGift" App in Prof. Gallaugher's "Learn to Program Using Swift for iOS Development". For more info, see https://gallaugher.com/swift