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Overcome the vexing, real-life issues you confront when creating apps for the iPhone, iPad, or iPod Touch. By making use of new and revised recipes in this updated cookbook, you'll quickly learn the steps necessary for writing complete iOS apps - including ways to store and protect data, enhance and animate graphics, stabilize video captures, and take advantage of Passbook. Thoroughly updated for the iOS 6 SDK, this cookbook shows you how to use hundreds of techniques to solve problems that developers of all levels commonly face. Each recipe includes sample code you can use right away. Define the layout of UI elements with Cocoa Auto Layout Develop location-aware apps Get working examples for implementing gesture recognizers Use new Objective-C Runtime features Play audio and video files and access the iPod library Retrieve contacts and groups from the Address Book Determine camera availability and access the Photo Library Create multitasking-aware apps Use Event Kit to manage calendars, dates, and events Learn capabilities of the Core Graphics framework Access the accelerometer and gyroscope Enhance your app with the iCloud service

Chapter 1 The Basics
Introduction
Creating a Simple iOS App in Xcode
Understanding Interface Builder
Compiling iOS Apps
Running iOS Apps on the Simulator
Running iOS Apps on iOS Devices
Packaging iOS Apps for Distribution
Declaring Variables in Objective-C
Allocating and Making Use of Strings
Comparing Values in Objective-C with an if Statement
Implementing Loops with for Statements
Implementing while Loops
Creating Custom Classes
Defining Functionality for Classes
Defining Two or More Methods with the Same Name
Allocating and Initializing Objects
Adding Properties to Classes
Moving from Manual Reference Counting to Automatic Reference Counting
Typecasting with Automatic Reference Counting
Delegating Tasks with Protocols
Determining Whether Instance or Class Methods Are Available
Determining Whether a Class Is Available at Runtime
Allocating and Making Use of Numbers
Allocating and Making Use of Arrays
Allocating and Making Use of Dictionaries
Allocating and Making Use of Sets
Creating Bundles
Loading Data from the Main Bundle
Loading Data from Other Bundles
Sending Notifications with NSNotificationCenter
Listening for Notifications Sent from NSNotificationCenter
Chapter 2 Implementing Controllers and Views
Introduction
Displaying Alerts with UIAlertView
Creating and Using Switches with UISwitch
Customizing the UISwitch
Picking Values with UIPickerView
Picking the Date and Time with UIDatePicker
Implementing Range Pickers with UISlider
Customizing the UISlider
Grouping Compact Options with UISegmentedControl
Customizing the UISegmentedControl
Presenting and Managing Views with UIViewController
Presenting Sharing Options with UIActivityViewController
Implementing Navigation with UINavigationController
Manipulating a Navigation Controller’s Array of View Controllers
Displaying an Image on a Navigation Bar
Adding Buttons to Navigation Bars Using UIBarButtonItem
Presenting Multiple View Controllers with UITabBarController
Displaying Static Text with UILabel
Customizing the UILabel
Accepting User Text Input with UITextField
Displaying Long Lines of Text with UITextView
Adding Buttons to the User Interface with UIButton
Displaying Images with UIImageView
Creating Scrollable Content with UIScrollView
Loading Web Pages with UIWebView
Presenting Master-Detail Views with UISplitViewController
Enabling Paging with UIPageViewController
Displaying Popovers with UIPopoverController
Displaying Progress with UIProgressView
Listening and Reacting to Keyboard Notifications
Constructing and Displaying Styled Texts
Chapter 3 Auto Layout and the Visual Format Language
Introduction
Placing UI Components in the Center of the Screen
Defining Horizontal and Vertical Constraints with the Visual Format Language
Utilizing Cross View Constraints
Configuring Auto Layout Constraints in Interface Builder
Chapter 4 Constructing and Using Table Views
Introduction
Instantiating a Table View
Assigning a Delegate to a Table View
Populating a Table View with Data
Receiving and Handling Table View Events
Using Different Types of Accessories in a Table View Cell
Creating Custom Table View Cell Accessories
Displaying Hierarchical Data in Table Views
Enabling Swipe Deletion of Table View Cells
Constructing Headers and Footers in Table Views
Displaying Context Menus on Table View Cells
Moving Cells and Sections in Table Views
Deleting Cells and Sections from Table Views
Utilizing the UITableViewController for Easy Creation of Table Views
Displaying a Refresh Control for Table Views
Chapter 5 Storyboards
Introduction
Creating a Project with Storyboards
Adding a Navigation Controller to a Storyboard
Passing Data From One Screen to Another
Adding a Storyboard to an Existing Project
Chapter 6 Concurrency
Introduction
Constructing Block Objects
Accessing Variables in Block Objects
Invoking Block Objects
Dispatching Tasks to Grand Central Dispatch
Performing UI-Related Tasks with GCD
Executing Non-UI Related Tasks Synchronously with GCD
Executing Non-UI Related Tasks Asynchronously with GCD
Performing Tasks After a Delay with GCD
Performing a Task Only Once with GCD
Grouping Tasks Together with GCD
Constructing Your Own Dispatch Queues with GCD
Running Tasks Synchronously with Operations
Running Tasks Asynchronously with Operations
Creating Dependency Between Operations
Creating Timers
Creating Concurrency with Threads
Invoking Background Methods
Exiting Threads and Timers
Chapter 7 Core Location and Maps
Introduction
Creating a Map View
Handling the Events of a Map View
Pinpointing the Location of a Device
Displaying Pins on a Map View
Displaying Pins with Different Colors on a Map View
Displaying Custom Pins on a Map View
Converting Meaningful Addresses to Longitude and Latitude
Converting Longitude and Latitude to a Meaningful Address
Chapter 8 Implementing Gesture Recognizers
Introduction
Detecting Swipe Gestures
Detecting Rotation Gestures
Detecting Panning and Dragging Gestures
Detecting Long Press Gestures
Detecting Tap Gestures
Detecting Pinch Gestures
Chapter 9 Networking, JSON, XML, and Twitter
Introduction
Downloading Asynchronously with NSURLConnection
Handling Timeouts in Asynchronous Connections
Downloading Synchronously with NSURLConnection
Modifying a URL Request with NSMutableURLRequest
Sending HTTP GET Requests with NSURLConnection
Sending HTTP POST Requests with NSURLConnection
Sending HTTP DELETE Requests with NSURLConnection
Sending HTTP PUT Requests with NSURLConnection
Serializing Arrays and Dictionaries into JSON
Deserializing JSON into Arrays and Dictionaries
Integrating Twitter Functionality into Your Apps
Parsing XML with NSXMLParser
Chapter 10 Audio and Video
Introduction
Playing Audio Files
Handling Interruptions while Playing Audio
Recording Audio
Handling Interruptions while Recording Audio
Playing Audio over Other Active Sounds
Playing Video Files
Capturing Thumbnails from a Video File
Accessing the Music Library
Chapter 11 Address Book
Introduction
Requesting Access to the Address Book
Retrieving a Reference to an Address Book
Retrieving All the People in the Address Book
Retrieving Properties of Address Book Entries
Inserting a Person Entry into the Address Book
Inserting a Group Entry into the Address Book
Adding Persons to Groups
Searching the Address Book
Retrieving and Setting a Person’s Address Book Image
Chapter 12 Files and Folder Management
Introduction
Finding the Paths of the Most Useful Folders on Disk
Writing to and Reading from Files
Creating Folders on Disk
Enumerating Files and Folders
Deleting Files and Folders
Securing Files on Disk
Saving Objects to Files
Chapter 13 Camera and the Photo Library
Introduction
Detecting and Probing the Camera
Taking Photos with the Camera
Taking Videos with the Camera
Storing Photos in the Photo Library
Storing Videos in the Photo Library
Retrieving Photos and Videos from the Photo Library
Retrieving Assets from the Assets Library
Editing Videos on an iOS Device
Chapter 14 Multitasking
Introduction
Detecting the Availability of Multitasking
Completing a Long-Running Task in the Background
Receiving Local Notifications in the Background
Playing Audio in the Background
Handling Location Changes in the Background
Saving and Loading the State of Multitasking iOS Apps
Handling Network Connections in the Background
Handling Notifications Delivered to a Waking App
Responding to Changes in App Settings
Opting Out of Multitasking
Chapter 15 Core Data
Introduction
Creating a Core Data Model with Xcode
Generating Class Files for Core Data Entities
Creating and Saving Data Using Core Data
Reading Data from Core Data
Deleting Data from Core Data
Sorting Data in Core Data
Boosting Data Access in Table Views
Implementing Relationships in Core Data
Chapter 16 Dates, Calendars, and Events
Introduction
Retrieving the List of Calendars
Adding Events to Calendars
Accessing the Contents of Calendars
Removing Events from Calendars
Adding Recurring Events to Calendars
Retrieving the Attendees of an Event
Adding Alarms to Calendars
Handling Event Changed Notifications
Presenting Event View Controllers
Presenting Event Edit View Controllers
Chapter 17 Graphics and Animations
Introduction
Enumerating and Loading Fonts
Drawing Text
Constructing, Setting, and Using Colors
Drawing Images
Constructing Resizable Images
Drawing Lines
Constructing Paths
Drawing Rectangles
Adding Shadows to Shapes
Drawing Gradients
Displacing Shapes Drawn on Graphic Contexts
Scaling Shapes Drawn on Graphic Contexts
Rotating Shapes Drawn on Graphic Contexts
Animating and Moving Views
Animating and Scaling Views
Animating and Rotating Views
Chapter 18 Core Motion
Introduction
Detecting the Availability of an Accelerometer
Detecting the Availability of a Gyroscope
Retrieving Accelerometer Data
Detecting Shakes on an iOS Device
Retrieving Gyroscope Data
Chapter 19 iCloud
Introduction
Setting Up Your App for iCloud
Storing and Synchronizing Dictionaries in iCloud
Creating and Managing Folders for Apps in iCloud
Searching for Files and Folders in iCloud
Storing User Documents in iCloud
Managing the State of Documents in iCloud
Handling Conflicts in iCloud Documents
Chapter 20 Pass Kit
Introduction
Creating Pass Kit Certificates
Creating Pass Files
Providing Icons and Images for Passes
Preparing Your Passes for Digital Signature
Signing Passes Digitally
Distributing Passes Using Email
Distributing Passes Using Web Services
Enabling Your iOS Apps to Access Passes on iOS Devices
Interacting with Passbook Programmatically
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