iOS Components and Frameworks: Understanding the Advanced Features of the iOS SDK

Take Your Next Leap Forward as an iOS App Developer! Covers iOS 7 and Xcode 5   iOS Components and Frameworks will help you leverage iOS’s powerful components and frameworks to build apps with outstanding performance, reliability, interactivity, media support, and customization.   Pioneering iOS developers Kyle Richter and Joe Keeley illuminate the sophisticated intermediate-to-advancedlevel techniques you’re now ready for. You’ll find example-rich coverage of topics ranging from social support to security, Core Data, TextKit, iCloud support, UIKit Dynamics, MapKit, and Passbook. There’s also a complete section on advanced performance and security, including the effective use of Grand Central Dispatch and Keychain.   Each chapter contains a complete sample project that walks you through integrating its technology into a typical iOS app. You’ll discover how multiple iOS features can be combined into exceptionally powerful apps and walk through a complete case study project: a fully functional game with complete Game Center integration.   Coverage includes: New physics-based animation effects provided by UIKit Dynamics Making the most of Core Location, MapKit, and Geofencing Leveraging Game Center features such as Leader Boards and Achievements Giving users access to their address and media libraries from within your app Using lightweight JSON to move data among servers, apps, and websites Syncing apps via iCloud using UIDocument and key-value store syncing Securing user data with Keychain Informing users of important app-related events via Notifications Storing and retrieving persistent data locally with Core Data Using advanced Objective-C features to write more manageable, concise apps Improving responsiveness through concurrency with Grand Central Dispatch Advanced text handling and display with TextKit Smoothly handling complex and continuous gestures Effective debugging techniques with Xcode 5 and Instruments Building passes for Passbook and PassKit If you’re a serious iOS developer who wants to build cutting-edge apps, iOS Components and Frameworks delivers the practical skills, reusable code, and expert insights you’re looking for.

Table of Contents:
1  UIKit Dynamics   1 Sample App   1 Introduction to UIKit Dynamics   2 Implementing UIKit Dynamics   3   Gravity   3   Collisions   4   Attachments   6   Springs   8   Snap   9   Push Forces   9   Item Properties   11 In-Depth UIDynamicAnimator and UIDynamicAnimatorDelegate   13 Summary   13 Exercises   14   2  Core Location, MapKit, and Geofencing   15 The Sample App   15 Obtaining User Location   15   Requirements and Permissions   16   Checking for Services   19   Starting Location Request   20   Parsing and Understanding Location Data   22   Significant Change Notifications   23   Using GPX Files to Test Specific Locations   24 Displaying Maps   26   Understanding the Coordinate Systems   26   MKMapKit Configuration and Customization   26   Responding to User Interactions   28 Map Annotations and Overlays   29   Adding Annotations   29   Displaying Standard and Custom Annotation Views   32   Draggable Annotation Views   35   Working with Map Overlays   36 Geocoding and Reverse-Geocoding   37   Geocoding an Address   37   Reverse-Geocoding a Location   41 Geofencing   44    Checking for Regional Monitoring Capability   44    Defining Boundaries   45    Monitoring Changes   46 Getting Directions   48 Summary   52 Exercises   53   3  Leaderboards   55 Whack-a-Cac   55   Spawning a Cactus   57   Cactus Interaction   60   Displaying Life and Score   62   Pausing and Resuming   63   Final Thoughts on Whack-a-Cac   64 iTunes Connect   65 Game Center Manager   68 Authenticating   70   Common Authentication Errors   71   iOS 6 Authentication   73 Submitting Scores   75   Adding Scores to Whack-a-Cac   78   Presenting Leaderboards   80   Score Challenges   82   Going Further with Leaderboards   84 Summary   86 Exercises   86   4  Achievements   87 iTunes Connect   87 Displaying Achievement Progress   89 Game Center Manager and Authentication   91 The Achievement Cache   91 Reporting Achievements   93 Adding Achievement Hooks   95   Completion Banners   96   Achievement Challenges   97   Adding Achievements into Whack-a-Cac   100   Earned or Unearned Achievements   101   Partially Earned Achievements   102   Multiple Session Achievements   104   Piggybacked Achievements and Storing Achievement Precision   105   Timer-Based Achievements   106 Resetting Achievements   107 Going Further with Achievements   108 Summary   110 Exercises   110   5  Getting Started with Address Book   111 Why Address Book Support Is Important   111 Limitations of Address Book Programming   112 Introduction to the Sample App   112 Getting Address Book Up and Running   112   Reading Data from the Address Book   115   Reading Multivalues from the Address Book   116   Understanding Address Book Labels   117   Working with Addresses   118 Address Book Graphical User Interface   120   People Picker   120 Programmatically Creating Contacts   125 Summary   128 Exercises   128   6  Working with Music Libraries   129 Introduction to the Sample App   129 Building a Playback Engine   131   Registering for Playback Notifications   131   User Controls   133   Handling State Changes   135   Duration and Timers   139   Shuffle and Repeat   140 Media Picker   141 Programmatic Picker   143   Playing a Random Song   144   Predicate Song Matching   145 Summary   147 Exercises   148   7  Working with and Parsing JSON   149 JSON   149   Benefits of Using JSON   149   JSON Resources   150 Sample App Overview   150 Accessing the Server   150 Getting JSON from the Server   151   Building the Request   151   Inspecting the Response   152   Parsing JSON   153   Displaying the Data   154 Posting a Message   155   Encoding JSON   156   Sending JSON to the Server   158 Summary   159 Exercise   159   8  Getting Started with iCloud   161 The Sample App   161 Setting Up the App for iCloud Support   162   Account Setup   162   Enabling iCloud Capabilities   163   Initializing iCloud   164 Introducing UIDocument   165   Subclassing UIDocument   165   Interacting with UIDocument   167 Interacting with iCloud   168   Listing Documents in iCloud   168   Detecting Conflicts in iCloud   172 Conflict Resolution   173 Key-Value Store Syncing   178 Summary   180 Exercises   180   9  Notifications   181 Differences Between Local and Push Notifications   181 Sample App   182 App Setup   182 Create Development Push SSL Certificate   184 Development Provisioning Profile   188 Custom Sound Preparation   194 Registering for Remote Notifications   194 Scheduling Local Notifications   196 Receiving Notifications   196 Push Notification Server   198 Basic Rails Setup   198 Add Support for Devices and Shouts   199 Device Controller   202 Shout Controller   202 Tying It All Together   204 Sending the Push Notifications   207 Handling APNs Feedback   207 Summary   208 Exercise  208   10  Bluetooth Networking with Game Kit   209 Limitations of Game Kit’s Bluetooth Networking   209 Benefits of Game Kit’s Bluetooth Networking   210 Sample App   210 The Peer Picker   215 Sending Data   218   Data Modes   219   Sending Data in the Sample App   219 Receiving Data   221   Receiving Data in the Sample App   221 State Changes   222 Advanced Features  223   Peer Display Name  223   Connecting Without the Peer Picker  223   Session Modes  225 Summary  225 Exercises  225   11  AirPrint  227 AirPrint Printers  227 Testing for AirPrint  229 Printing Text   229   Print Info  230   Setting Page Range  231   Error Handling  232   Starting the Print Job  232   Print Simulator Feedback  233 Print Center  234   UIPrintInteractionControllerDelegate  234 Printing Rendered HTML  236 Printing PDFs  237 Summary  239 Exercises  239   12  Core Data Primer  241 Deciding on Core Data  242 Core Data Managed Objects  243   Managed Objects  243   Managed Object Model  244   Managed Object Model Migrations  246   Creating Managed Objects  246   Fetching and Sorting Objects  247   Fetched Results Controller  248 The Core Data Environment  248   Persistent Store Coordinator  249   Persistent Store  249   Managed Object Context  249 Summary  250   13  Getting Up and Running with Core Data  251 Sample App  251 Starting a Core Data Project  252   Core Data Environment  254 Building Your Managed Object Model  256   Creating an Entity  257   Adding Attributes  257   Establishing Relationships  258   Custom Managed Object Subclasses  259 Setting Up Default Data  260   Inserting New Managed Objects  260   Other Default Data Setup Techniques  261 Displaying Your Managed Objects  262   Creating Your Fetch Request  262   Fetching by Object ID  264   Displaying Your Object Data  265   Using Predicates  267 Introducing the Fetched Results Controller  268   Preparing the Fetched Results Controller  268   Integrating Table View and Fetched Results Controller  271   Responding to Core Data Changes  273 Adding, Editing, and Removing Managed Objects  275   Inserting a New Managed Object  275   Removing a Managed Object  276   Editing an Existing Managed Object  277   Saving and Rolling Back Your Changes  278 Summary  279 Exercises  279   14  Language Features  281 Literals  282   Boxed Expressions  284 Automatic Reference Counting  285   Using ARC in a New Project  285   Converting an Existing Project to ARC  286   Basic ARC Usage  288   ARC Qualifiers  289 Blocks  290   Declaring and Using Blocks  290   Capturing State with Blocks  291   Using Blocks as Method Parameters  293   Memory, Threads, and Blocks  294 Properties  295   Declaring Properties  295   Synthesizing Properties  297   Accessing Properties  297   Dot Notation  298   Fast Enumeration  298 Method Swizzling  299 Summary  302 Exercises  302   15  Integrating Twitter and Facebook Using Social Framework  303 Social Integration  303 The Sample App  303 Logging In  304 Using SLComposeViewController  306 Posting with a Custom Interface  308   Posting to Twitter  308   Posting to Facebook  312   Creating a Facebook App  312 Accessing User Timelines  318   Twitter  318   Facebook  324 Summary  328 Exercises  328   16  Working with Background Tasks  329 The Sample App  330 Checking for Background Availability  330 Finishing a Task in the Background  331   Background Task Identifier  332   Expiration Handler  333   Completing the Background Task  333 Implementing Background Activities  335   Types of Background Activities  335   Playing Music in the Background  336 Summary  340 Exercises  340   17  Grand Central Dispatch for Performance  341 The Sample App  341 Introduction to Queues  343 Running on the Main Thread  343 Running in the Background  345 Running in an Operation Queue  347   Concurrent Operations  347   Serial Operations  349   Canceling Operations  350   Custom Operations  351 Running in a Dispatch Queue  353   Concurrent Dispatch Queues  353   Serial Dispatch Queues  355 Summary  357 Exercises  358   18  Using Keychain to Secure Data  359 Introduction to the Sample App  360 Setting Up and Using Keychain  360   Setting Up a New KeychainItemWrapper  361   Storing and Retrieving the PIN  362   Keychain Attribute Keys  363   Securing a Dictionary  364   Resetting a Keychain Item  366   Sharing a Keychain Between Apps  367   Keychain Error Codes  368 Summary  368 Exercises  369   19  Working with Images and Filters  371 The Sample App  371 Basic Image Data and Display  371   Instantiating an Image  372   Displaying an Image  373   Using the Image Picker  375   Resizing an Image  378 Core Image Filters  379   Filter Categories and Filters  379   Filter Attributes  382   Initializing an Image  384   Rendering a Filtered Image  385   Chaining Filters  386 Face Detection  387   Setting Up a Face Detector  388   Processing Face Features  388 Summary  390 Exercises  391   20  Collection Views  393 The Sample App  393 Introducing Collection Views  394   Setting Up a Collection View  395   Implementing the Collection View Data Source Methods  396   Implementing the Collection View Delegate Methods  399 Customizing Collection View and Flow Layout  401   Basic Customizations  401   Decoration Views  402 Creating Custom Layouts  406 Collection View Animations  411   Collection View Layout Changes  411   Collection View Layout Animations  412   Collection View Change Animations  414 Summary  415 Exercises  415   21  Introduction to TextKit  417 Sample App  417   Introducing NSLayoutManager  418 NSTextStore  418 Detecting Links Dynamically  421 Detecting Hits  422 Exclusion Paths  423 Content Specific Highlighting  425 Changing Font Settings with Dynamic Type  429 Summary  431 Exercises  431   22  Gesture Recognizers  433 Types of Gesture Recognizers  433 Basic Gesture Recognizer Usage  434 Introduction to the Sample App  434   Tap Recognizer in Action  435   Pinch Recognizer in Action  436 Multiple Recognizers for a View  438   Gesture Recognizers: Under the Hood  440   Multiple Recognizers for a View: Redux  441   Requiring Gesture Recognizer Failures  443 Custom UIGestureRecognizer Subclasses  444 Summary  445 Exercise  445   23  Accessing Photo Libraries  447 Sample App  447 The Assets Library  448 Enumerating Asset Groups and Assets  448   Permissions  449   Groups  451   Assets  455 Displaying Assets  458 Saving to the Camera Roll  462 Dealing with Photo Stream  465 Summary   467 Exercises  467   24  Passbook and PassKit  469 The Sample App  470 Designing the Pass  470   Pass Types  471   Pass Layout—Boarding Pass  471   Pass Layout—Coupon  471   Pass Layout—Event  472   Pass Layout—Generic  473   Pass Layout—Store Card  474   Pass Presentation  474 Building the Pass  476   Basic Pass Identification  477   Pass Relevance Information  478   Barcode Identification  478   Pass Visual Appearance Information  479   Pass Fields  479 Signing and Packaging the Pass  482   Creating the Pass Type ID  482   Creating the Pass Signing Certificate  484   Creating the Manifest  489   Signing and Packaging the Pass  489   Testing the Pass  490   Interacting with Passes in an App  490 Updating Passes Automatically  501 Summary  502 Exercises  502   25  Debugging and Instruments  503 Introduction to Debugging  503     The First Computer Bug  504   Debugging Basics with Xcode  504 Breakpoints  506   Customizing Breakpoints  507   Symbolic and Exception Breakpoints  508   Breakpoint Scope  508 Working with the Debugger  509 Instruments  511   The Instruments Interface  512   Exploring Instruments: The Time Profiler  514   Exploring Instruments: Leaks  516   Going Further with Instruments  519 Summary  519 Exercises  520   Index  521