Book excerpt: The Cocoa Touch frameworks and APIs are powerful tools for creating native iOS apps, and they're free with Xcode, Apple's development environment. If you've already gotten your feet wet with Objective-C, and you're ready to learn more about iOS development, then Learn Cocoa Touch for iOS is the book for you. You'll learn on the job - building cool apps as you read through the book that will teach you what you need to know to use Cocoa Touch and prepare you for creating your own apps. Learn Cocoa Touch for iOS shows you how to use frameworks like MapKit, Twitter, and MediaPlayer. You'll also learn about hardware APIs so you can get the most out of your accelerometer, camera, and more. You'll even learn about more advanced features like Grand Central Dispatch. A home inventory management system A live-updating Twitter client A photo browser with an animated slideshow If you're ready for the next step toward becoming a Cocoa Touch master, this is the book for you. What you’ll learn Get up and running with Xcode and Apple’s other development tools Discover the Objective-C language and when to use the underlying C language Use the Model-View-Controller (MVC) paradigm to create well-designed apps Implement network services in your apps Animate screen components with UIKit animations Get awesome performance with multithreaded code Who this book is for Novice or intermediate programmers who want to create engaging iOS applications and get in-depth coverage of Cocoa Touch. Table of Contents Getting Started: Xcode and Hello World Objective-C in a Nutshell Memory Management and ARC Model-View-Controller Programming: Well-Designed Code The Delegation Pattern Managing On-Screen Content with View Controllers Providing Lists of Content with Table Views Nib Loading In-Depth Parent and Child View Controllers Handling User Touches Saving Content in Your App Moving Data Around Core Data Integrating Networking and Web Services Writing Modern Code with Blocks Managing What Happens When Timers Run Loops Grand Central Dispatch User Interface Design Custom UIView Subclasses Creating Dynamic User Interfaces with CoreGraphics Animation with UIKit and CoreAnimation Hardware APIs: Accelerometer, Camera, etc. Media in Your App: Playing Audio and Video Localization and Internationalization: Maximizing Your App’s Reach