Swift for the Really Impatient is the perfect jumpstart
to the Swift language for every experienced Objective-C developer.
Leading iOS and OS X developers Matt Henderson and Dave Wood help
you take full advantage of Swift’s powerful innovations,
without wasting time on basics you already know.
Through expert code examples and crystal-clear explanations, Henderson and Wood reveal how Swift features improve on Objective-C and show how to make the most of them. You’ll quickly master “Swift-er” techniques for using objects, classes, optionals, generics, functions, closures, and more. Each chapter includes hands-on exercises designed to reinforce and deepen your skills.
You’ll learn how to re-implement common Objective-C programming solutions in Swift, improving code clarity, power, and performance on both desktop and mobile devices. And, because you probably won’t (or can’t) abandon Objective-C anytime soon, you’ll discover how to use both languages together, smoothly integrate Swift into existing projects and workflows, and gradually move your current code base into the future. Coverage includes
Using Swift’s new patterns and concise, expressive syntax to produce safer, more reliable code
Leveraging the surprising power of Swift’s data structures
Utilizing Swift’s type system to help prevent errors common in other languages
Using optionals to correctly handle invalid, missing, or unknown values
Implementing generics to reduce duplication, improve power, and simplify maintenance
Interacting with C and Objective-C APIs
Abstracting functionality for reusable code while maintaining type safety
Isolating code in clean, flexible, low-overhead closures
Combining Swift with Objective-C in the same project
Avoiding gotchas when importing Objective-C classes in Swift projects
Nesting types to improve code clarity
Creating shared objects with singletons
Managing threading and concurrency with Swift’s advanced Grand Central Dispatch (GCD) patterns