IPad iOS 4 App development Essentials - Xcode 4 Edition

This eBook is currently under development and is scheduled for completion in June 2011. New chapters are added regularly be so please check back for updates.

1. Introduction
   
   
2. The Anatomy of an iPad 2
   • iOS 4
   • Display
   • Wireless Connectivity
   • Wired Connectivity
   • Memory
   • Cameras
   • Sensors
   • Location Detection
   • Central Processing Unit (CPU)
   • Graphics Processing Unit (GPU)
   • Speaker and Microphone
   • Battery
     
     
3. iOS 4 Architecture and SDK Frameworks
   • iPhone OS becomes iOS
   • An Overview of the iOS 4 Architecture
   • The Cocoa Touch Layer
   • UIKit Framework (UIKit.framework)
   • Map Kit Framework (MapKit.framework)
   • Push Notification Service
   • Message UI Framework (MessageUI.framework)
   • Address Book UI Framework (AddressUI.framework)
   • Game Kit Framework (GameKit.framework)
   • iAd Framework (iAd.framework)
   • Event Kit UI Framework
   • The iOS Media Layer
   • Core Video Framework (CoreVideo.framework)
   • Core Text Framework (CoreText.framework)
   • Image I/O Framework (ImageIO.framework)
   • Assets Library Framework (AssetsLibrary.framework)
   • Core Graphics Framework (CoreGraphics.framework)
   • Quartz Core Framework (QuartzCore.framework)
   • OpenGL ES framework (OpenGLES.framework)
   • iOS Audio Support
   • AV Foundation framework (AVFoundation.framework)
   • Core Audio Frameworks (CoreAudio.framework, AudioToolbox.framework and AudioUnit.framework)
   • Open Audio Library (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 Location Framework (CoreLocation.framework)
   • Mobile Core Services Framework (MobileCoreServices.framework)
   • Store Kit Framework (StoreKit.framework)
   • SQLite library
   • System Configuration Framework (SystemConfiguration.framework)
   • Quick Look Framework (QuickLook.framework)
   • The iOS Core OS Layer
   • Accelerate Framework (Accelerate.framework)
   • External Accessory framework (ExternalAccessory.framework)
   • Security Framework (Security.framework)
   • System (LibSystem)
     
     
4. Installing Xcode 4 and the iOS 4 SDK (iPad)
   • Identifying if you have an Intel or PowerPC based Mac
   • Installing Xcode 4 and the iOS 4 SDK
   • Starting Xcode 4
     
     
5. Creating a Simple iPad iOS 4 App
   • Starting Xcode 4
   • Creating the iOS App User Interface
   • Changing Component Properties
   • Adding Objects to the User Interface
   • Building and Running an iPad App in Xcode 4
   • Dealing with Build Errors
     
     
6. An Overview of the iPad iOS 4 Application Development Architecture
   • Model View Controller (MVC)
   • The Target-Action pattern, IBOutlets and IBActions
   • Subclassing
   • Delegation
     
     
7. Creating an Interactive iOS 4 iPad App (Xcode 4)
   • Creating the New Project
   • Creating the User Interface
   • Building and Running the Sample Application
   • Adding Actions and Outlets
   • Connecting the Actions and Outlets to the User Interface
   • Building and Running the Finished Application
     
     
8. Writing iOS 4 Code to Hide the iPad Keyboard
   • Creating the Example App
   • Hiding the Keyboard when the User Touches the Return Key
   • Hiding the Keyboard when the User Taps the Background
     
     
9. Understanding iPad iOS 4 Views, Windows and the View Hierarchy
   • An Overview of Views
   • The UIWindow 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
     
     
10. iOS 4 iPad Rotation, View Resizing and Layout Handling (Xcode 4)
    • Setting up the Example
    • iPad Screen Resolution
    • Enabling Rotation
    • Testing Rotation Behavior
    • Configuring View Autosizing
    • Coding Layout and Size Changes
      
      
11. Creating an iOS 4 iPad Multiview Application using the Tab Bar
    • An Overview of the Tab Bar
    • Understanding View Controllers in a Multiview Application
    • Setting up the Tab Bar Example Application
    • Configuring the App Delegate
    • Creating the UITabBarController
    • Connecting the App Delegate Outlet to the Tab Bar Controller
    • Creating the Content Views and View Controllers
    • Associating Content Views with Tabs
    • Testing the Multiview Application
      
      
12. Creating a Simple iOS 4 iPad Table View Application
    • An Overview of the Table View
    • The Table View Delegate and dataSource
    • Table View Styles
    • Table View Cell Styles
    • Setting up the Project
    • Adding the Table View Component
    • Making the Delegate and dataSource Connections
    • Implementing the dataSource
    • Building and Running the Application
    • Adding Table View Images and Changing Cell Styles
      
      
13. Creating a Navigation based iOS 4 iPad Application using TableViews
    • Understanding the Navigation Controller
    • An Overview of the Example
    • Setting up the Project
    • Reviewing the Project Files
    • Setting up the Data in the Root View Controller
    • Writing Code to Display the Data in the Table View
    • Creating the Second View Controller
    • Connecting the Second View Controller to the Root View Controller
    • Creating the NIB File for the Second Table View
    • Implementing the Functionality of the Second View Controller
    • Popping the View Controller off the Navigation Controller Stack
    • Adding the Navigation Code
      
      
14. An iPad iOS 4 Split View and Popover Example
    • An Overview of Split View and Popovers
    • About the Example iPad Split View and Popover Project
    • Creating the Project
    • Reviewing the Project
    • Configuring Master View Items
    • Configuring the Detail View Controller
    • Connecting Master Selections to the Detail View
    • Popover Implementation
    • Testing the Application
      
      
15. An iOS 4 iPad Multiple Component UIPickerView Example (Xcode 4)
    • Creating the iPad PickerView Project
    • UIPickerView Delegate and DataSource
    • The pickerViewController.h File
    • Designing the User Interface
    • Initializing the Arrays
    • Implementing the DataSource Protocol
    • Implementing the Delegate
    • Releasing Memory
    • Testing the Application
      
      
16. Working with Directories on the iPad with iOS 4
    • The Application Documents Directory
    • The Objective-C NSFileManager, NSFileHandle and NSData Classes
    • Understanding Pathnames in Objective-C
    • Creating an NSFileManager Instance 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
      
      
17. Working with Files on the iPad with iOS 4
    • Creating an NSFileManager Instance
    • Checking if a File Exists
    • 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
    • NSFileHandle File Offsets and Seeking
    • Reading Data from a File
    • Writing Data to a File
    • Truncating a File
      
      
18. iPad iOS 4 SDK Directory Handling and File I/O – A Worked Example
    • The Example iPad Application
    • Setting up the Application project
    • Designing the User Interface
    • Checking for the Data File on Application Startup
    • Implementing the Action Method
      
      
19. Data Persistence on the iPad using Archiving with iOS 4
    • An Overview of Archiving
    • The iPad Object Archiving Example Application
    • Implementing the Actions and Outlets
    • Releasing Memory
    • Designing the iPad User Interface
    • Checking for the Existence of the Archive File on Startup
    • Archiving Object Data in the Action Method
    • Testing the Application
      
      
20. iOS 4 iPad Database Implementation using SQLite
    • What is SQLite?
    • Structured Query Language (SQL)
    • Trying SQLite on MacOS X
    • Preparing an iPad 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
      
      
21. An Example SQLite based iOS 4 iPad Application
    • About the Example SQLite iPad Application
    • Creating and Preparing the SQLite Application Project
    • Importing sqlite3.h and declaring the Database Reference
    • Creating the Outlets and Actions
    • Releasing Memory
    • Creating the Database and Table
    • Implementing the Code to Save Data to the SQLite Database
    • Implementing Code to Extract Data from the SQLite Database
    • Designing the User Interface
    • Building and Running the Application
      
      
22. Working with iOS 4 iPad 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
      
      
23. Identifying iPad Gestures using iOS 4 Gesture Recognizers
    • The UIGestureRecognizer Class
    • Recognizer Action Messages
    • Discrete and Continuous Gestures
    • Obtaining Data from an iPad 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
      
      
24. An iPad iOS 4 Gesture Recognition Tutorial
    • Creating the Gesture Recognition Project
    • Configuring the Label Outlet
    • Designing the User Interface
    • Configuring the Gesture Recognizers
    • Adding the Action Methods
    • Testing the Gesture Recognition Application
      
      
25. Basic iPad Animation using Core Animation
    • UIView Core Animation Blocks
    • Understanding Animation Curves
    • Receiving Notification of Animation Completion
    • Performing Affine Transformations
    • Combining Transformations
      
      
26. An iPad Core Animation Tutorial
    • Creating the Core Animation Project
    • Implementing the Interface File
    • Drawing in the UIView
    • Detecting Screen Touches and Performing the Animation
    • Building and Running the Animation Application
      
      
27. Integrating iAds into an iOS 4 iPad App
    • Making Money from an iPad Application
    • iOS iPad Advertising Options
    • iAds Advertisement Formats
    • Basic Rules for the Display of iAds
    • Creating an Example iAds iPad Application
    • Adding the iAds Framework to the Xcode Project
    • Configuring the View Controller
    • Designing the User Interface
    • Creating the Banner Ad
    • Displaying the Ad
    • Changing Ad Format during Device Rotation
    • Implementing the Delegate Methods
    • bannerViewActionShouldBegin
    • bannerViewActionDidFinish
    • bannerView:didFailToReceiveAdWithError
      
      
28. An Overview of iOS 4 iPad Multitasking
    • Understanding iOS Application States
    • A Brief Overview of the iPad Multitasking Application Lifecycle
    • Disabling Multitasking for an iPad Application
    • Checking for Multitasking Support
    • Supported Forms of Background Execution
    • The Rules of Background Execution
    • Scheduling Local Notifications
      
      
29. Scheduling iOS 4 iPad Local Notifications
30. Getting iPad Location Information using the iOS 4 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
      
      
31. An Example iOS 4 iPad Location Application
    • Creating the Example iOS iPad Location Project
    • Adding the Core Location Framework to the Project
    • Configuring the View Controller
    • Designing the User Interface
    • Creating the CLLocationManager Object
    • Implementing the Action Method
    • Implementing the Application Delegate Methods
    • Releasing Memory
    • Building and Running the iPad Location Application
      
      
32. Working with Maps on the iPad with MapKit and the MKMapView Class
    • About the MapKit Framework
    • Understanding Map Regions
    • About the iPad MKMapView Tutorial
    • Creating the iPad Map Tutorial
    • Adding the MapKit Framework to the Xcode Project
    • Declaring an Outlet for the MapView
    • Creating the MKMapView and Connecting the Outlet
    • Adding the Navigation Controller
    • Changing the MapView Region
    • Changing the Map Type
    • Testing the iPad MapView Application
    • Updating the Map View based on User Movement
    • Adding Basic Annotations to a Map View
      
      
33. Video Playback from within an iOS 4 iPad Application
    • An Overview of the MPMoviePlayerController Class
    • Supported Video Formats
    • The iPad Movie Player Example Application
    • Adding the MediaPlayer Framework to the Project
    • Declaring the Action Method
    • Designing the User Interface
    • Adding the Video File to the Project Resources
    • Implementing the Action Method
    • The Target-Action Notification Method
    • Build and Run the Application
    • Accessing a Network based Video File
      
      
34. Playing Audio on an iPad using AVAudioPlayer
    • Supported Audio Formats
    • Receiving Playback Notifications
    • Controlling and Monitoring Playback
    • Creating the iPad Audio Example Application
    • Adding the AVFoundation Framework
    • Adding an Audio File to the Project Resources
    • Creating Actions and Outlets
    • Implementing the Action Methods
    • Updating the Playback Time
    • Creating Initializing the AVAudioPlayer Object
    • Implementing the AVAudioPlayerDelegate Protocol Methods
    • Designing the User Interface
    • Releasing Memory
    • Building and Running the Application