Book Image

Swift iOS Programming for Kids

By : Steffen D. Sommer, Jim Campagno
Book Image

Swift iOS Programming for Kids

By: Steffen D. Sommer, Jim Campagno

Overview of this book

This book starts at the beginning by introducing programming through easy to use examples with the Swift Playgrounds app. Kids are regularly encouraged to explore and play with new concepts to support knowledge acquisition and retention – these newly learned skills can then be used to express their own unique ideas. Children will be shown how to create their first iOS application and build their very own movie night application.
Table of Contents (21 chapters)
Swift iOS Programming for Kids
Credits
About the Authors
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface
2
Getting Set Up

Summary


This chapter covered a lot of ground related to how interfaces work and how we can construct them using Xcode's Interface Builder. The chapter started out by explaining the view hierarchy and how we can use that to position elements using frames, bounds, and Auto Layout. We also briefly looked at some of the important states in the view life cycle:

  • viewDidLoad(): This is called after the view has been loaded

  • viewWillAppear(_:): This is called every time the view is about to appear to the user

  • viewDidAppear(_:): This is called every time the view appears to the user

  • viewWillDisappear(_:): This is called every time the view is about to disappear for the user

We ended the chapter by making a small application, which we called Starry Night. The application scaled correctly across devices with different screen sizes because we used Auto Layout constraints. The application was able to animate the background color based on the user tapping the buttons. The application also showed how...