Apple's Human Interface Guidelines and SFSymbol Library
Note: If you're using Catalina, you already have the SFSymbols app installed on your machine. You can find it in the Applications folder on your machine.
Note: In this episode, you may see the now-obsolete #if DEBUG macro, which used to be utilised for previews to run in the canvas. This is now no longer necessary, and you can safely ignore it. We’ve removed it from the project for convenience as well.
TabViews are SwiftUI's answer to the UITabBarController from UIKit. It is so easy to get started with and customise to get the result you want.