Unit 3: Summary

Nice work! This unit covered a lot of ground.

You've learned how to work with optional data in Swift. You've also learned about navigation hierarchies and how to build simple workflows using tabs and navigation stacks.

With your working knowledge of Xcode, Swift, and UIKit, there are many new apps that you're now capable of building. In the next unit, you'll up-level your UIKit experience by learning about table views, and you'll tie together all these skills to build an app that allows the user to view, enter, and save information.