Summary
In this chapter, we explored how to go about downloading and installing Xcode development tools and then moved on to discussing and using playgrounds to write Swift code to get to grips with some of the Swift programming language features. Next, we looked at some of the newest features that come as part of the Swift 2.0 language.
In the next chapter, you will learn about the WatchKit platform and its architecture as well as the application's life cycle. You will get accustomed to the WatchKit classes and learn about some of the limitations with the WatchKit platform architecture; then you will learn about Apple Watch Human Interface Guidelines and take a look at what's new in watchOS 2.