Preface

This book teaches you how to master the Swift programming language and use it in building apps with the new technologies introduced in iOS 8. Swift is a new programming language for iOS, OS X, and watchOS apps. In the beginning of this book, we will give you an advanced introduction to Swift, and then we will see how to apply this in real-app demos using the new technologies and APIs in iOS 8 such as TouchID, watchOS, Metal, and HealthKit.