Previous chapters have covered many of the basics of computer science. You’ve found some Swift playgrounds and snippets of code that illustrate many of the concepts and issues. The focus of this book is on Swift and the basic frameworks of iOS and macOS — Cocoa and Cocoa Touch.
To actually develop in these environments, you will need to use Xcode, Apple’s
integrated development environment (IDE). This chapter will give you a general overview of how apps and other pieces of software are built in general (that is, not just on these platforms and with Xcode). Then you’ll ...
