Entirely rewritten for Apple's Swift programming language, this updated cookbook helps you overcome the vexing issues you're likely to face when creating apps for iOS devices.You'll find hundreds of new and revised recipes for using the iOS 8 SDK, including techniques for working with Health data and HomeKit accessories, enhancing and animating graphics, storing and protecting data, sending and receiving notifications, and managing files and folders among them. Each recipe includes sample code on GitHub that you can use right away.Use CloudKit APIs to store information in the cloud with easeCreate custom keyboards and extensionsAccess users' health-related information with HealthKitInteract with accessories inside the user's home with HomeKitCreate vibrant and lifelike user interfaces with UIKit DynamicsUse the Keychain to protect your app's dataDevelop location-aware and multitasking-aware appsWork with iOS 8's audio and video APIsUse Event Kit UI to manage calendars, dates, and eventsTake advantage of the accelerometer and the gyroscopeGet working examples for implementing gesture recognizersRetrieve and manipulate contacts and groups from the Address BookDetermine a camera's availability and access the Photo Library