3.6 Summary
This book was written using Xcode version 12.2 and the iOS 14 SDK running on macOS 11.0 (Big Sur). Before beginning SwiftUI development, the first step is to install Xcode and configure it with your Apple ID via the accounts section of the Preferences screen. Once these steps have been performed, a development certificate must be generated which will be used to sign apps developed within Xcode. This will allow you to build and test your apps on physical iOS-based devices.
When you are ready to upload your finished app to the App Store, you will also need to generate a distribution certificate, a process requiring membership in the Apple Developer Program as outlined in the previous chapter
Having installed the iOS SDK and successfully launched Xcode 12 we can now look at Xcode in more detail, starting with Playgrounds.