Get a solid grounding in the fundamentals of Cocoa Touch, and avoid problems during iPhone and iPad app development. With this revised and expanded edition, you’ll dig into Cocoa and learn how to work effectively with Objective-C and Xcode. This book covers iOS 5 and Xcode 4.3 in a rigorous, orderly fashion—ideal whether you’re approaching iOS for the first time or need a reference to bolster existing skills. Many discussions have been expanded or improved. All code examples have been revised, and many new code examples have been added. The new memory management system—ARC—is thoroughly explained and all code examples have been revised to use it. New Objective-C features, such as declaration of instance variables in the class’s implementation section, are described and incorporated into the revised example code. Discussion of how an app launches, and all code examples, are revised for project templates from Xcode 4.2 and later. Other new Xcode features, including the Simulator’s Debug menu, are covered, with screen shots based on Xcode 4.2 and later. The discussion of Instruments is expanded, with screen shots—by popular request! Storyboards are explained and discussed. The explanation of view controllers is completely rewritten to include iOS 5 features, such as custom parent view controllers and UIPageViewController. The Controls chapter now includes iOS 5 interface customizability and the appearance proxy. New features of interface classes are discussed, including tiling and animated images, new table view features, new alert view styles. Coverage of frameworks such as Core Motion and AV Foundation is greatly expanded. New iOS 5 classes and frameworks are also discussed, including Core Image and UIDocument (and iCloud support). Important iOS 5 changes that can break existing code are explicitly called out in the text and listed in the index. About the Author Matt Neuburg has a PhD in Classics and has taught at many universities and colleges. He has been programming computers since 1968. He has written applications for Mac OS X and iOS, is a former editor of MacTech Magazine, and is a long-standing contributing editor for TidBITS. His previous O'Reilly books are Frontier: The Definitive Guide, REALbasic: The Definitive Guide, and AppleScript: The Definitive Guide. He makes a living writing books, articles, and software documentation, as well as by programming, consulting, and training. Table of Contents Language Chapter 1 Just Enough C Compilation, Statements, and Comments Variable Declaration, Initialization, and Data Types Structs Pointers Arrays Operators Flow Control and Conditions Functions Pointer Parameters and the Address Operator Files The Standard Library More Preprocessor Directives Data Type Qualifiers Chapter 2 Object-Based Programming Objects Messages and Methods Classes and Instances Class Methods Instance Variables The Object-Based Philosophy Chapter 3 Objective-C Objects and Messages An Instance Reference Is a Pointer Messages and Methods Typecasting and the id Type Messages as Data Type C Functions CFTypeRefs Blocks Chapter 4 Objective-C Classes Class and Superclass Interface and Implementation Header File and Implementation File Class Methods The Secret Life of Classes Chapter 5 Objective-C Instances How Instances Are Created Polymorphism The Keyword self The Keyword super Instance Variables and Accessors Key–Value Coding Properties How to Write an Initializer IDE Chapter 6 Anatomy of an Xcode Project New Project The Project Window The Project File and Its Dependents The Target From Project to App Chapter 7 Nib Management A Tour of the Nib-Editing Interface Nib Loading and File’s Owner Making and Loading a Nib Outlet Connections Action Connections Additional Initialization of Nib-Based Instances Chapter 8 Documentation The Documentation Window Class Documentation Pages Sample Code Other Resources Chapter 9 Life Cycle of a Project Choosing a Device Architecture Localization Editing Your Code Navigating Your Code Debugging Unit Testing Static Analyzer Clean Running in the Simulator Running on a Device Device Management Version Control Instruments Distribution Ad Hoc Distribution Final App Preparations Submission to the App Store Cocoa Chapter 10 Cocoa Classes Subclassing Categories Protocols Optional Methods Some Foundation Classes The Secret Life of NSObject Chapter 11 Cocoa Events Reasons for Events Subclassing Notifications Delegation Data Sources Actions The Responder Chain Application Lifetime Events Swamped by Events Chapter 12 Accessors and Memory Management Accessors Key–Value Coding Memory Management Properties Chapter 13 Data Communication Model–View–Controller Instance Visibility Notifications Key–Value Observing Views Chapter 14 Views The Window Subview and Superview Frame Bounds and Center Layout Transform Visibility and Opacity Chapter 15 Drawing UIImage and UIImageView Graphics Contexts UIImage Drawing CGImage Drawing CIFilter and CIImage Drawing a UIView Graphics Context Settings Paths and Drawing Clipping Gradients Colors and Patterns Graphics Context Transforms Shadows Points and Pixels Content Mode Chapter 16 Layers View and Layer Layers and Sublayers Drawing in a Layer Transforms Shadows, Borders, and More Layers and Key–Value Coding Chapter 17 Animation Drawing, Animation, and Threading UIImageView and UIImage Animation View Animation Implicit Layer Animation Core Animation Actions Emitter Layers Chapter 18 Touches Touch Events and Views Receiving Touches Restricting Touches Interpreting Touches Gesture Recognizers Touch Delivery Interface Chapter 19 View Controllers The View Controller Hierarchy View Controller and View Creation Rotation Presented View Controller Tab Bar Controllers Navigation Controllers Page View Controller Container View Controllers Storyboards View Controller Lifetime Events View Controller Memory Management Chapter 20 Scroll Views Creating a Scroll View Scrolling Zooming Scroll View Delegate Scroll View Touches Scroll View Performance Chapter 21 Table Views Table View Cells Table View Data Table View Selection Table View Scrolling and Layout Table View Searching Table View Editing Table View Menus Chapter 22 Popovers and Split Views Configuring and Displaying a Popover Managing a Popover Dismissing a Popover Popover Segues Automatic Popovers Split Views Chapter 23 Text UILabel UITextField UITextView Core Text Chapter 24 Web Views Loading Content Communicating with a Web View Chapter 25 Controls and Other Views UIActivityIndicatorView UIProgressView UIPickerView UISearchBar UIControl Bars Appearance Proxy Chapter 26 Modal Dialogs Alert View Action Sheet Dialog Alternatives Local Notifications Some Frameworks Chapter 27 Audio System Sounds Audio Session Audio Player Remote Control of Your Sound Playing Sound in the Background Further Topics in Sound Chapter 28 Video MPMoviePlayerController MPMoviePlayerViewController UIVideoEditorController An Introduction to AV Foundation Video Chapter 29 Music Library Exploring the Music Library The Music Player The Music Picker Chapter 30 Photo Library and Image Capture UIImagePickerController Image Capture With AV Foundation The Assets Library Framework Chapter 31 Address Book Address Book Database Address Book Interface Chapter 32 Calendar Calendar Database Calendar Interface Chapter 33 Mail Mail Message SMS Message Chapter 34 Maps Displaying a Map Annotations Overlays Chapter 35 Sensors Location Heading Acceleration and Attitude Final Topics Chapter 36 Persistent Storage The Sandbox Basic File Operations Saving and Reading Files User Defaults File Sharing Document Types Handing Off a Document The Document Architecture XML SQLite Image File Formats Chapter 37 Basic Networking HTTP Requests Bonjour Push Notifications Beyond Basic Networking Chapter 38 Threads The Main Thread Why Threading Is Hard Three Ways of Threading Threads and App Backgrounding Chapter 39 Undo The Undo Manager The Undo Interface The Undo Architecture Chapter 40 Epilogue Index Colophon