ios 7 App Development Essentials

Transcription

1 ios 7 App Development Essentials

2 Table of Contents 1. Start Here For New ios Developers For ios 6 Developers Source Code Download Feedback Errata 3 2. Joining the Apple ios Developer Program Registered Apple Developer Downloading Xcode and the ios 7 SDK ios Developer Program When to Enroll in the ios Developer Program? Enrolling in the ios Developer Program Summary 8 3. Installing Xcode 5 and the ios 7 SDK Identifying if you have an Intel or PowerPC based Mac Installing Xcode 5 and the ios 7 SDK Starting Xcode Creating a Simple ios 7 App Starting Xcode Creating the ios App User Interface Changing Component Properties Adding Objects to the User Interface Building and Running an ios 7 App in Xcode Dealing with Build Errors Testing Different Screen Sizes Testing User Interface Appearance in Different ios Versions Monitoring Application Performance Summary ios 7 Architecture and SDK Frameworks iphone OS becomes ios An Overview of the ios 7 Architecture The Cocoa Touch Layer UIKit Framework (UIKit.framework) Map Kit Framework (MapKit.framework) Push Notification Service 30 iii

3 5.3.4 Message ill Framework (MessageUl.framework) Address Book ill Framework (Addressill.framework) Game Kit Framework (GameKit.framework) iad Framework (iad.framework) Event Kit Ul Framework (EventKit.framework) Accounts Framework (Accounts.framework) Social Framework (Social.framework) SpriteKit Framework (SpriteKit.framework) The ios Media Layer Core Video Framework (CoreVideo.framework) Core Text Framework (CoreText.framework) Image I/O Framework (ImagelO.framework) Assets Library Framework (AssetsLibrary.framework) Core Graphics Framework (CoreGraphics.framework) Core Image Framework (Corelmage.framework) Quartz Core Framework (QuartzCore.framework) OpenGL ES framework (OpenGLES.framework) GLKit Framework (GLKitframework) NewsstandKit Framework (NewsstandKit.framework) ios Audio Support AVFoundation framework (AVFoundation.framework) Core Audio Frameworks [CoreAudio.framework, AudioToolbox.framework and Audioilnit.framework) Open Audio iibrary (OpenAL) Media Player Framework (MediaPlayer.framework) Core Midi Framework (CoreMIDI.framework) The ios Core Services Layer Address Book Framework (AddressBook.framework) CFNetwork Framework (CFNetwork.framework) Core Data Framework (CoreData.framework) Core Foundation Framework (CoreFoundation.framework) Core Media Framework (CoreMedia.framework) Core Telephony Framework (CoreTelephony.framework) EventKit Framework (EventKit.framework) Foundation Framework (Foundation.framework) Core iocation Framework (CoreLocation.framework) Mobile Core Services Framework (MobileCoreServices.framework) Store Kit Framework (StoreKit.framework) SQiite library System Configuration Framework (SystemConfiguration.framework) Quick Look Framework (QuickLook.framework) 35 iv

4 5.7 The ios Core OS Layer Accelerate Framework (Accelerate.framework) External Accessory Framework (ExternalAccessory.framework) Security Framework (Security.framework) System (LibSystem) Testing Apps on ios 7 Devices with Xcode Configuring Xcode with Apple IDs Generating Signing Identities Adding a Device to the Developer Portal Running an Application on a Registered Device Summary The Basics of Objective-C Programming Objective-C Data Types and Variables Objective-C Expressions Objective-C Flow Control with if and else Looping with the for Statement Objective-C Looping with do and while Objective-C do while... loops The Basics of Object Oriented Programming in Objective-C What is an Object? What is a Class? Declaring an Objective-C Class Interface Adding Instance Variables to a Class Define Class Methods Declaring an Objective-C Class Implementation Declaring and Initializing a Class Instance Automatic Reference Counting (ARC) Calling Methods and Accessing Instance Data Objective-C and Dot Notation How Variables are Stored An Overview of Indirection Indirection and Objects Indirection and Object Copying Creating the Program Section Bringing it all Together Structuring Object-Oriented Objective-C Code The Basics of Modern Objective-C Default Property Synthesis 67 v

5 9.2 Method Ordering NSNumber Literals Array Literals Dictionary Literals Summary An Overview of the ios 7 Application Development Architecture Model View Controller (MVC) The Target-Action pattern, IBOutlets and IBActions Subclassing Delegation Summary Creating an Interactive ios 7 App Creating the New Project Creating the User Interface Building and Running the Sample Application Adding Actions and Outlets Building and Running the Finished Application Summary Writing ios 7 Code to Hide the Keyboard Creating the Example App Hiding the Keyboard when the User Touches the Return Key Hiding the Keyboard when the User Taps the Background Summary Understanding ios 7 Views, Windows and the View Hierarchy An Overview of Views The UlWindow Class The View Hierarchy View Types The Window Container Views Controls Display Views Text and Web Views Navigation Views and Tab Bars Alert Views and Action Sheets Summary An Introduction to Auto Layout in ios 7 97 vi

6 14.1 An Overview of Auto Layout Alignment Rects Intrinsic Content Size Content Hugging and Compression Resistance Priorities Three Ways to Create Constraints Constraints in more Detail Summary Working with ios 7 Auto Layout Constraints in Interface Builder A Simple Example of Auto Layout in Action Enabling and Disabling Auto Layout in Interface Builder The Auto Layout Features of Interface Builder Suggested Constraints Visual Cues Highlighting Constraint Problems Viewing, Editing and Deleting Constraints Creating New Constraints in Interface Builder Resolving Auto Layout Problems Summary An ios 7 Auto Layout Example Preparing the Project Designing the User Interface Adding Auto Layout Constraints Adjusting Constraint Priorities Testing the Application Summary Implementing ios 7 Auto Layout Constraints in Code Creating Constraints in Code Adding a Constraint to a View Turning off Auto Resizing Translation An Example Application Creating the Views Creating and Adding the Constraints Removing Constraints Summary : Implementing Cross-Hierarchy Auto Layout Constraints in ios The Example Application Establishing Outlets Writing the Code to Remove the Old Constraint 140 vii

7 18.4 Adding the Cross Hierarchy Constraint I Testing the Application Summary Understanding the ios 7 Auto Layout Visual Format Language Introducing the Visual Format Language I Visual Language Format Examples I Using the constraintswithvisualformat: Method I Summary Using Storyboards in Xcode Creating the Storyboard Example Project Accessing the Storyboard I Adding Scenes to the Storyboard Configuring Storyboard Segues Configuring Storyboard Transitions Associating a View Controller with a Scene Passing Data Between Scenes Unwinding Storyboard Segues Triggering a Storyboard Segue Programmatically Summary Using Xcode 5 Storyboards to Create an ios 7 Tab Bar Application An Overview of the Tab Bar Understanding View Controllers in a Multiview Application Setting up the Tab Bar Example Application Reviewing the Project Files Renaming the Initial View Controller Adding the View Controller for the Second Content View Adding the Tab Bar Controller to the Storyboard Adding a Second View Controller to the Storyboard Designing the View Controller User interfaces Configuring the Tab Bar Items Building and Running the Application Summary An Overview of ios 7 Table Views and Xcode 5 Storyboards An Overview of the Table View Static vs. Dynamic Table Views The Table View Delegate and datasource Table View Styles Table View Cell Styles 169 viii

8 22.6 Table View Cell Reuse 22.7 Summary Using Xcode 5 Storyboards to Build Dynamic TabieViews with Prototype Table View Cells Creating the Example Project 23.2 Adding the TableView Controller to the Storyboard Creating the UlTableViewController and UlTableViewCell Subclasses Declaring the Cell Reuse Identifier Designing a Storyboard UlTableView Prototype Cell Modifying the CarTableViewCell Class Creating the Table View Datasource Downloading and Adding the Image Files Compiling and Running the Application Summary 24. Implementing ios 7 TableView Navigation using Storyboards in Xcode Understanding the Navigation Controller Adding the New Scene to the Storyboard Adding a Navigation Controller Establishing the Storyboard Segue Modifying the CarDetailViewController Class Using prepareforsegue: to Pass Data between Storyboard Scenes Testing the Application 24.8 Summary 25. Using an Xcode 5 Storyboard to Create a Static Table View An Overview of the Static Table Project 25.2 Creating the Project 25.3 Adding a Table View Controller Changing the Table View Content Type Designing the Static Table Adding Items to the Table Cells Modifying the StaticTableViewController Class Building and Running the Application 25.9 Summary 26. An ipad ios 7 Split View and Popover Example An Overview of Split View and Popovers About the Example ipad Split View and Popover Project Creating the Project 26.4 Reviewing the Project Configuring Master View Items ix

9 26.6 Configuring the Detail View Controller Connecting Master Selections to the Detail View Popover Implementation Testing the Application Summary Implementing a Page based ios 7 Application using UlPageViewController The UlPageViewController Class The UlPageViewController DataSource Navigation Orientation Spine Location The UlPageViewController Delegate Protocol Summary An Example ios 7 UlPageViewController Application The Xcode Page-based Application Template Creating the Project Adding the Content View Controller Creating the Data Model Initializing the UlPageViewController Running the UlPageViewController Application Summary Using the ios 7 UlPickerView and UIDatePicker Components The DatePicker and PickerView Components A DatePicker Example Designing the User Interface Coding the Date Picker Example Functionality Building and Running the Date Picker Application An ios 7 UlPickerView Example Creating the ios 7 PickerView Project UlPickerView Delegate and DataSource The PickerViewController.h File Designing the User Interface Initializing the Arrays Implementing the DataSource Protocol Implementing the Delegate Protocol Hiding the Keyboard Testing the Application Working with Directories on ios x

10 A I 31.1 The Application Documents Directory The Objective-C NSFileManager, NSFileHandle and NSData Classes Understanding Pathnames in Objective-C Obtaining a Reference to the Default NSFileManager Object Identifying the Current Working Directory Identifying the Documents Directory Identifying the Temporary Directory Changing Directory Creating a New Directory Deleting a Directory Listing the Contents of a Directory Getting the Attributes of a File or Directory Working with Files on ios Creating an NSFileManager Instance Checking for the Existence of a File Comparing the Contents of Two Files Checking if a File is Readable/Writable/Executable/Deletable Moving/Renaming a File Copying a File Removing a File Creating a Symbolic Link Reading and Writing Files with NSFileManager Working with Files using the NSFileHandle Class Creating an NSFileHandle Object NSFileHandle File Offsets and Seeking Reading Data from a File Writing Data to a File Truncating a File : Summary ios 7 Directory Handling and File I/O 33.1 The Example Application Worked Example Setting up the Application Project Designing the User Interface Checking the Data File on Application Startup Implementing the Action Method Building and Running the Example 34. Preparing an ios 7 App to use icioud Storage What is icioud? 259 xi

11 34.2 icioud Data Storage Services Preparing an Application to Use icioud Storage Enabling icioud Support for an ios 7 Application Reviewing the icioud Entitlements File Manually Creating the Entitlements File Accessing Multiple Ubiquity Containers Ubiquity Container URLs Summary Managing Files using the ios 7 UIDocument Class An Overview of the UIDocument Class Subclassing the UIDocument Class Conflict Resolution and Document States The UIDocument Example Application Creating a UIDocument Subclass Designing the User Interface Implementing the Application Data Structure Implementing the contentsfortype Method Implementing the loadfromcontents Method Loading the Document at App Launch Saving Content to the Document Testing the Application Summary Using icioud Storage in an ios 7 Application icioud Usage Guidelines Preparing the icioudstore Application for icioud Access Configuring the View Controller Implementing the viewdidload Method Implementing the metadataquerydidfinishgathering: Method Implementing the savedocument Method Enabling icioud Document and Data Storage Running the icioud Application Reviewing and Deleting icioud Based Documents Reviewing icioud Activities in the Xcode Debugging Debug Navigator Making a Local File Ubiquitous Summary Synchronizing ios 7 Key-Value Data using icioud An Overview of icioud Key-Value Data Storage Sharing Data Between Applications 288 xii

12 37.3 Data Storage Restrictions Conflict Resolution Receiving Notification of Key-Value Changes An icioud Key-Value Data Storage Example Enabling the Application for icioud Key Value Data Storage Designing the User Interface Implementing the View Controller Modifying the viewdidload Method Implementing the Notification Method Implementing the savedata Method Testing the Application ios 7 Data Persistence using Archiving An Overview of Archiving The Archiving Example Application Designing the User Interface Checking for the Existence of the Archive File on Startup Archiving Object Data in the Action Method Testing the Application Summary ios 7 Database Implementation using SQLite What is SQLite? Structured Query Language (SQL) Trying SQLite on MacOS X Preparing an ios Application Project for SQLite Integration Key SQLite Functions Declaring a SQLite Database Opening or Creating a Database Preparing and Executing a SQL Statement Creating a Database Table Extracting Data from a Database Table Closing a SQLite Database Summary An Example SQLite based ios 7 Application About the Example SQLite Application Creating and Preparing the SQLite Application Project Importing sqlite3.h and declaring the Database Reference Designing the User Interface Creating the Database and Table 311 xiii

13 40.6 Implementing the Code to Save Data to the SQLite Database Implementing Code to Extract Data from the SQLite Database Building and Running the Application Summary Working with ios 7 Databases using Core Data The Core Data Stack Managed Objects Managed Object Context Managed Object Model Persistent Store Coordinator Persistent Object Store Defining an Entity Description Obtaining the Managed Object Context Getting an Entity Description Creating a Managed Object Getting and Setting the Attributes of a Managed Object Fetching Managed Objects Retrieving Managed Objects based on Criteria Summary An ios 7 Core Data Tutorial The Core Data Example Application Creating a Core Data based Application Creating the Entity Description Adding a Storyboard to the Project Adding a View Controller Designing the User Interface Saving Data to the Persistent Store using Core Data Retrieving Data from the Persistent Store using Core Data Building and Running the Example Application Summary An Overview of ios 7 Multitouch, Taps and Gestures The Responder Chain Forwarding an Event to the Next Responder Gestures Taps Touches 43.6 Touch Notification Methods touchesbegan method xiv j

14 touchesmoved method touchesended method touchescancelled method Summary An Example ios 7 Touch, Multitouch and Tap Application The Example ios 7 Tap and Touch Application Creating the Example ios Touch Project Designing the User Interface Enabling Multitouch on the View Implementing the touchesbegan Method Implementing the touchesmoved Method Implementing the touchesended Method Getting the Coordinates of a Touch Building and Running the Touch Example Application Detecting ios 7 Touch Screen Gesture Motions The Example ios 7 Gesture Application Creating the Example Project Designing the Application User Interface Implementing the touchesbegan Method Implementing the touchesmoved Method Implementing the touchesended Method Building and Running the Gesture Example Summary 46. Identifying Gestures using ios 7 Gesture Recognizers The UIGestureRecognizer Class Recognizer Action Messages Discrete and Continuous Gestures Obtaining Data from a Gesture Recognizing Tap Gestures Recognizing Pinch Gestures Detecting Rotation Gestures Recognizing Pan and Dragging Gestures Recognizing Swipe Gestures Recognizing Long Touch (Touch and Hold) Gestures Summary 350 \7. An ios 7 Gesture Recognition Tutorial Creating the Gesture Recognition Project Designing the User Interface 351 xv

15 47.3 Implementing the Action Methods Testing the Gesture Recognition Application An Overview of ios 7 Collection View and Flow Layout An Overview of Collection Views The UlCollectionView Class The UlCollectionViewCell Class The UlCollectionReusableView Class The UlCollectionViewFlowLayout Class The UlCollectionViewLayoutAttributes Class The UlCollectionViewDataSource Protocol The UlCollectionViewDelegate Protocol The UlCollectionViewDelegateFlowLayout Protocol Cell and View Reuse Summary An ios 7 Storyboard-based Collection View Tutorial Creating the Collection View Example Project Removing the Template View Controller Adding a Collection View Controller to the Storyboard Adding the Collection View Cell Class to the Project Designing the Cell Prototype Implementing the Data Model Implementing the Data Source Testing the Application Setting Sizes for Cell Items Changing Scroll Direction Implementing a Supplementary View Implementing the Supplementary View Protocol Methods Deleting Collection View Items Summary Subclassing and Extending the ios 7 Collection View Flow Layout About the Example Layout Class Subclassing the UlCollectionViewFlowLayout Class Extending the New Layout Class Implementing the layoutattributesforltematlndexpath: Method Implementing the layoutattributesforelementslnrect: Method Implementing the modifylayoutattributes: Method Adding the New Layout and Pinch Gesture Recognizer Implementing the Pinch Recognizer 386 xvi

16 50.9 Avoiding Image Clipping Testing the Application Summary Drawing ios 7 2D Graphics with Core Graphics Introducing Core Graphics and Quartz 2D The drawrect Method Points, Coordinates and Pixels The Graphics Context Working with Colors in Quartz 2D Summary An ios 7 Graphics Tutorial using Core Graphics and Core Image The ios Drawing Example Application Creating the New Project Creating the UlView Subclass Locating the drawrect Method in the UlView Subclass Drawing a Line Drawing Paths Drawing a Rectangle Drawing an Ellipse or Circle Filling a Path with a Color Drawing an Arc Drawing a Cubic Bezier Curve Drawing a Quadratic Bezier Curve Dashed Line Drawing Drawing Shadows Drawing Gradients Drawing an Image into a Graphics Context Image Filtering with the Core Image Framework Summary Basic ios 7 Animation using Core Animation UlView Core Animation Blocks Understanding Animation Curves Receiving Notification of Animation Completion Performing Affine Transformations Combining Transformations Creating the Animation Example Application Implementing the Interface File Drawing in the UlView 422 xvii

17 53.9 Detecting Screen Touches and Performing the Animation Building and Running the Animation Application Summary ios 7 UIKit Dynamics - An Overview Understanding UIKit Dynamics The UIKit Dynamics Architecture Dynamic Items Dynamic Behaviors The Reference View The Dynamic Animator Implementing UIKit Dynamics in an ios 7 Application Dynamic Animator Initialization Configuring Gravity Behavior Configuring Collision Behavior Configuring Attachment Behavior Configuring Snap Behavior Configuring Push Behavior The UIDynamicltemBehavior Class Combining Behaviors to Create a Custom Behavior Summary An ios 7 UIKit Dynamics Tutorial Creating the UIKit Dynamics Example Project Adding the Dynamic Items Creating the Dynamic Animator Instance Adding Gravity to the Views Implementing Collision Behavior Attaching a View to an Anchor Point Implementing a Spring Attachment Between two Views Summary An Introduction to ios 7 Sprite Kit Programming What is Sprite Kit? The Key Components of a Sprite Kit Game Sprite Kit View Scenes Nodes Physics Bodies Physics World Actions 451 xviii i

18 I Transitions Texture Atlas An Example Sprite Kit Game Hierarchy The Sprite Kit Game Rendering Loop Summary An ios 7 Sprite Kit Game Tutorial About the Sprite Kit Demo Game Creating the SpriteKitDemo Project Reviewing the SpriteKit Game Template Project Creating the Game Scene Classes Implementing the Welcome Scene Transitioning to the Archery Scene Preparing the Archery Scene Adding the Texture Atlas Obtaining a Texture from the Atlas Preparing the Animation Texture Atlas Animating the Archer Sprite Node Creating the Arrow Sprite Node Shooting the Arrow Adding the Ball Sprite Node Summary An ios 7 Sprite Kit Collision Handling Tutorial Defining the Category Bit Masks Assigning the Category Masks to the Sprite Nodes Configuring the Collision and Contact Masks Implementing the Contact Delegate Implementing a Physics Joint Between Nodes Game Over Summary An ios 7 Sprite Kit Particle Emitter Tutorial What is the Particle Emitter? The Particle Emitter Editor The SKEmitterNode Class Using the Particle Emitter Editor Particle Emitter Node Properties Background Particle Texture Particle Birthrate 488 xix

19 Particle Life Cycle Particle Position Range Angle Particle Speed Particle Acceleration Particle Scale Particle Rotation Particle Color Particle Blend Mode Experimenting with the Particle Emitter Editor Bursting a Ball using Particle Emitter Effects Adding the Burst Particle Emitter Effect Summary Integrating iads into an ios 7 App ios Advertising Options Preparing to Run iads within an Application iad Advertisement Formats Banner Ads Interstitial Ads Medium Rectangle Ads Pre-Roll Video Ads Creating an Example iads Application Adding the iads Framework to the Xcode Project Enabling Banner Ads Adding a Medium Rectangle Ad Implementing an Interstitial Ad Configuring iads Test Settings Going Live with iads Summary ios 7 Multitasking, Background Transfer Service and Fetching Understanding ios Application States A Brief Overview of the Multitasking Application Lifecycle Checking for Multitasking Support Enabling Multitasking for an ios Application Supported Forms of Background Execution An Overview of Background Fetch An Overview of Remote Notifications An Overview of Local Notifications An Overview of Background Transfer Service 517 xx

20 61.10 The Rules of Background Execution Summary An ios 7 Background Transfer Service Tutorial Creating the Example Project The handleeventsforbackgroundurlsession Method Designing the User Interface Configuring the View Controller Implementing the Session Delegate Methods Testing the Application Summary Scheduling ios 7 Local Notifications Creating the Local Notification App Project Adding a Sound File to the Project Locating the Application Delegate Method Scheduling the Local Notification Testing the Application Cancelling Scheduled Notifications Immediate Triggering of a Local Notification Summary An Overview of ios 7 Application State Preservation and Restoration The Preservation and Restoration Process Opting In to Preservation and Restoration Assigning Restoration Identifiers Default Preservation Features of UIKit Saving and Restoring Additional State Information Understanding the Restoration Process Saving Genera! Application State Summary An ios 7 State Preservation and Restoration Tutorial Creating the Example Application Trying the Application without State Preservation Opting-in to State Preservation Setting Restoration Identifiers Encoding and Decoding View Controller State Adding a Navigation Controller to the Storyboard Adding the Third View Controller Creating the Restoration Class Summary 548 xxi

21 66. Integrating Maps into ios 7 Applications using MKMapltem MKMapltem and MKPIacemark Classes An Introduction to Forward and Reverse Geocoding Creating MKPIacemark Instances Working with MKMapltem MKMapltem Options and Enabling Turn-by-Turn Directions Adding Item Details to an MKMapltem Summary An Example ios 7 MKMapltem Application Creating the Mapltem Project Designing the User Interface Converting the Destination using Forward Geocoding Launching the Map Building and Running the Application Summary Getting Location Information using the ios 7 Core Location Framework The Basics of Core Location Configuring the Desired Location Accuracy Configuring the Distance Filter The Location Manager Delegate Obtaining Location Information from CLLocation Objects Longitude and Latitude Accuracy Altitude Calculating Distances Location Information and Multitasking Summary An Example ios 7 Location Application Creating the Example ios 7 Location Project Designing the User Interface Creating the CLLocationManager Object Implementing the Action Method Implementing the Application Delegate Methods Building and Running the Location Application Working with Maps on ios 7 with MapKit and the MKMapView Class About the MapKit Framework Understanding Map Regions 573 xxii

22 70.3 About the MKMapView Tutorial Creating the Map Project Adding the MapKit Framework to the Xcode Project Adding the Navigation Controller Creating the MKMapView Instance and Toolbar Configuring the Map View Changing the MapView Region Changing the Map Type Testing the MapView Application Updating the Map View based on User Movement Summary Working with MapKit Local Search in ios An Overview of ios 7 Local Search Adding Local Search to the MapSample Application Adding the Local Search Text Field Performing the Local Search Testing the Application Summary Using MKDirections to get ios 7 Map Directions and Routes An Overview of MKDirections Adding Directions and Routes to the MapSample Application Adding the New Classes to the Project Configuring the Results Table View Implementing the Result Table View Segue Adding the Route Scene Getting the Route and Directions Establishing the Route Segue Testing the Application Summary Using ios 7 Event Kit to Create Date and Location Based Reminders An Overview of the Event Kit Framework The EKEventStore Class Accessing Calendars in the Database Accessing Current Reminders Creating Reminders Creating Alarms Creating the Example Project Designing the User Interface for the Date/Time Based Reminder Screen 609 xxiii

23 73.9 Implementing the Reminder Code Hiding the Keyboard Designing the Location-based Reminder Screen Creating a Location-based Reminder Testing the Application Summary Accessing the ios 7 Camera and Photo Library The UllmagePickerController Class Creating and Configuring a UllmagePickerController Instance Configuring the UllmagePickerController Delegate Detecting Device Capabilities Saving Movies and Images Summary An Example ios 7 iphone Camera Application An Overview of the Application Creating the Camera Project Designing the User Interface Implementing the Action Methods Writing the Delegate Methods Building and Running the Application Video Playback from within an ios 7 Application An Overview of the MPMoviePlayerController Class Supported Video Formats The ios Movie Player Example Application Designing the User Interface Declaring the MoviePlayer Instance Implementing the Action Method 76.7 The Target-Action Notification Method Build and Run the Application Playing Audio on ios 7 using AVAudioPlayer Supported Audio Formats 77.2 Receiving Playback Notifications Controlling and Monitoring Playback Creating the Audio Example Application Adding an Audio File to the Project Resources Designing the User Interface 77.7 Implementing the Action Methods Creating and Initializing the AVAudioPlayer Object 641 xxiv

24 77.9 Implementing the AVAudioPlayerDelegate Protocol Methods Building and Running the Application Recording Audio on ios 7 with AVAudioRecorder An Overview of the AVAudioRecorder Tutorial Creating the Recorder Project Designing the User Interface Creating the AVAudioRecorder Instance Implementing the Action Methods Implementing the Delegate Methods Testing the Application Integrating Twitter and Facebook into ios 7 Applications The UlActivityViewController class The Social Framework Accounts Framework Using the UlActivityViewController Class Using the SLComposeViewController Class Summary An ios 7 Facebook Integration Tutorial using UlActivityViewController Creating the Facebook Social App Designing the User Interface Creating Outlets and Actions Implementing the selectlmage and Delegate Methods Hiding the Keyboard Posting the Message to Facebook Running the Social Application Summary ios 7 Facebook and Twitter Integration using SLRequest Using SLRequest and the Account Framework Twitter Integration using SLRequest Facebook Integration using SLRequest Summary An ios 7 Twitter Integration Tutorial using SLRequest Creating the TwitterApp Project Designing the User Interface Modifying the Interface File Accessing the Twitter API Calling the gettimeline Method 676 XXV

25 82.6 The Table View Delegate Methods Building and Running the Application Summary Making Store Purchases with the SKStoreProductViewController Class The SKStoreProductViewController Class Creating the Example Project Creating the User Interface Displaying the Store Kit Product View Controller Implementing the Delegate Method Adding the Store Kit Framework to the Build Phases Testing the Application Summary Building In-App Purchasing into ios 7 Applications In-App Purchase Options Uploading App Store Hosted Content Configuring In-App Purchase Items Sending a Product Request Accessing the Payment Queue The Transaction Observer Object Initiating the Purchase The Transaction Process Transaction Restoration Process Testing In-App Purchases Summary Preparing an ios 7 Application for In-App Purchases About the Example Application Creating the Xcode Project Registering and enabling the App ID for In App Purchasing Configuring the Application in itunes Connect Creating an In-App Purchase Item Summary An ios 7 In-App Purchase Tutorial The Application User Interface Designing the Storyboard Creating the Purchase View Controller Completing the InAppDemoViewController Class Completing the PurchaseViewController Class Testing the Application 707 xxvi

26 86.7 Troubleshooting Summary Configuring and Creating App Store Hosted Content for ios 7 In-App Purchases Configuring an Application for In-App Purchase Hosted Content The Anatomy of an In-App Purchase Hosted Content Package Creating an In-App Purchase Hosted Content Package Archiving the Hosted Content Package Validating the Hosted Content Package Uploading the Hosted Content Package Summary Preparing and Submitting an ios 7 Application to the App Store Verifying the ios Distribution Certificate Adding Icons and Launch Images to the Application Targeting 32-bit and 64-bit Architectures Archiving the Application for Distribution Configuring the Application in itunes Connect Validating and Submitting the Application Promoting your ios Apps using iad Workbench An Overview of iad Workbench Creating a New iads Campaign Campaign Targeting Options Designing the Banner Summary 728 Index 729 xxvii