IPhone iOS 4 Development Essentials

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Table of Contents

About iPhone iOS 4 App Development Essentials The Anatomy of an iPhone 4 iOS 4 Display Wireless Connectivity Wired Connectivity Memory Camera Sensors Location Detection Central Processing Unit (CPU) Graphics Processing Unit (GPU) Speaker and Microphone Vibration The iOS 4 Architecture and SDK Frameworks iPhone OS becomes iOS An Overview of the iOS 4 Architecture iPhone iOS 4 Development Frameworks The iPhone iOS 4 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 iPhone iOS 4 Media Layer iOS 4 Graphics and Video Support 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 iPhone iOS 4 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 iPhone iOS 4 Core OS Layer Accelerate Framework (Accelerate.framework) External Accessory framework (ExternalAccessory.framework) Security Framework (Security.framework) System (LibSystem) Installing Xcode and the iOS 4 SDK Identifying if you have an Intel or PowerPC based Mac Installing Xcode and the iOS 4 SDK Starting Xcode Creating a Simple iPhone iOS 4 App Starting Xcode Creating the iOS App User Interface Changing Component Properties Adding Objects to the User Interface Building and Running an iOS App in Xcode Dealing with Build Errors Testing iOS 4 Apps on the iPhone – Developer Certificates and Provisioning Profiles Joining the iOS Developer Program Creating an iOS Development Certificate Signing Request Submitting the iOS Development Certificate Signing Request Installing an iOS Development Certificate Assigning Devices Creating an App ID Creating an iOS Development Provisioning Profile Selecting a Device for Development Associating an App ID with an App Installing an App onto a Device The Basics of Objective-C Programming (iOS4 iPhone) 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 iPhone iOS 4 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, Initializing and Releasing a Class Instance Calling Methods and Accessing Instance Data Creating the Program Section Bringing it all Together Structuring Object-Oriented Objective-C Code An Overview of the iPhone iOS 4 Application Development Architecture Model View Controller (MVC) The Target-Action pattern, IBOutlets and IBActions Subclassing Delegation Creating an Interactive iOS 4 iPhone App 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 Writing iOS 4 Code to Hide the iPhone Keyboard Creating the Example App Hiding the Keyboard when the User Touches the Return Key Hiding the Keyboard when the User Taps the Background Understanding iPhone 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 iOS 4 iPhone Rotation, View Resizing and Layout Handling Enabling Rotation Testing Rotation Behavior Configuring View Autosizing Coding Layout and Size Changes Creating an iOS 4 iPhone Multiview Application using the Tab Bar An Overview of the Tab Bar Understanding View Controllers in an iOS 4 iPhone Multiview Application Setting up the Tab Bar Example Application Creating the Content Views and View Controllers Configuring the App Delegate Creating the UITabBarController Associating Content Views with Tabs Connecting the App Delegate Outlet to the Tab Bar Controller Designing the Content Views Testing the Multiview Application Creating a Simple iOS 4 iPhone 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 Creating a Navigation based iOS 4 iPhone 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 Using the UIPickerView and UIDatePicker Components in iOS 4 iPhone Applications The DatePicker and PickerView Components A DatePicker Example Designing the User Interface Coding the Date Picker Example Functionality Releasing Memory Building and Running the iPhone Date Picker Application An iOS 4 iPhone UIPickerView Example Creating the iOS 4 PickerView Project UIPickerView Delegate and DataSource The pickerViewController.h File Designing the User Interface Initializing the Arrays Implementing the DataSource Protocol Implementing the Delegate Hiding the Keyboard Testing the Application Working with Directories on iOS 4 (iPhone) 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 Working with Files on iOS 4 (iPhone) 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 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 iOS 4 iPhone Directory Handling and File I/O – A Worked Example The Example iPhone Application Setting up the Application project Defining the Actions and Outlets Designing the User Interface Checking the Data File on Application Startup Implementing the Action Method Building and Running the Example iOS 4 iPhone Data Persistence using Archiving An Overview of Archiving The Archiving Example Application Implementing the Actions and Outlets Releasing Memory Designing the iPhone User Interface Checking for the Existence of the Archive File on Startup Archiving Object Data in the Action Method Testing the Application iOS 4 iPhone Database Implementation using SQLite What is SQLite? Structured Query Language (SQL) Trying SQLite on MacOS X Preparing an iOS 4 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 An Example SQLite based iOS 4 iPhone Application About the Example SQLite iPhone 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 Working with iOS 4 iPhone 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 An iOS 4 iPhone Core Data Tutorial The iPhone Core Data Example Application Creating a Core Data based iPhone Application Creating the Entity Description Adding a View Controller Connecting the View Adding Actions and Outlets to the View Controller Designing the User Interface Saving Data to the Persistent Store using Core Data Retrieving Data from the Persistent Store using Core Data Releasing Memory Building and Running the Example Application An Overview of iOS 4 iPhone Multitouch, Taps and Gestures The Responder Chain Forwarding an Event to the Next Responder Gestures Taps Touches Touch Notification Methods touchesBegan method touchesMoved method touchesEnded method touchesCancelled method An Example iOS 4 iPhone Touch, Multitouch and Tap Application The Example iOS iPhone Tap and Touch Application Creating the Example iOS Touch Project Creating the Outlets Designing the user Interface Enabling Multitouch on the View Implementing the touchesBegan Method Implementing the touchesMoved Method Implementing the touchesEnded Method Building and Running the Touch Example Application Detecting iOS 4 iPhone Touch Screen Gesture Motions The Example iOS 4 iPhone Gesture Application Creating the Example Project Creating Outlets Designing the Application User Interface Implementing the touchesBegan Method Implementing the touchesMoved Method Implementing the touchesEnded Method Building and Running Gesture Example Drawing iOS 4 iPhone 2D Graphics with Quartz Introducing Core Graphics and Quartz 2D The drawRect Method Points, Coordinates and Pixels The Graphics Context Working with Colors in Quartz 2D An iOS 4 iPhone Graphics Drawing Tutorial using Quartz 2D The iOS iPhone Drawing Example Application Creating the New Project Creating the UIView Subclass Locating the drawRect Method in the UIView 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 Bézier Curve Drawing a Quadratic Bézier Curve Dashed Line Drawing Drawing an Image into a Graphics Context Integrating iAds into an iOS 4 iPhone App iOS iPhone Advertising Options iAds Advertisement Formats Basic Rules for the Display of iAds Creating an Example iAds iPhone 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 An Overview of iOS 4 iPhone Multitasking Understanding iOS Application States A Brief Overview of the Multitasking Application Lifecycle Disabling Multitasking for an iOS Application Checking for Multitasking Support Supported Forms of Background Execution The Rules of Background Execution Scheduling Local Notifications Scheduling iOS 4 iPhone Local Notifications Creating the Local Notification iPhone App Project Locating the Application Delegate Method Adding a Sound File to the Project Scheduling the Local Notification Testing the Application Cancelling Scheduled Notifications Immediate Triggering of a Local Notification Getting iPhone 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 An Example iOS 4 iPhone Location Application Creating the Example iOS iPhone 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 iPhone Location Application Accessing the Camera and Photo Library from an iOS 4 iPhone Application The iOS 4 UIImagePickerController Class Creating and Configuring a UIImagePickerController Instance Configuring the UIImagePickerController Delegate Detecting Device Capabilities Saving Movies and Images An Example iOS 4 iPhone Camera Application An Overview of the Application Creating the Camera Project Configuring Protocols, Outlets and Actions Designing the User Interface Implementing the Action Methods Writing the Delegate Methods Releasing Memory Building and Running the Application Video Playback from within an iOS 4 iPhone Application An Overview of the MPMoviePlayerController Class Supported Video Formats The iPhone 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 Enabling Device Rotation Build and Run the Application Accessing a Network based Video File Basic iOS 4 iPhone Animation using Core Animation UIView 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 UIView Detecting Screen Touches and Performing the Animation Building and Running the Animation Application Playing Audio on an iPhone using AVAudioPlayer (iOS 4) Support Audio Formats Receiving Playback Notifications Controlling and Monitoring Playback Creating the iPhone Audio Example Application Adding the AVFoundation Framework Adding an Audio File to the Project Resources Creating Actions and Outlets Implementing the Action Methods Creating Initializing the AVAudioPlayer Object Implementing the AVAudioPlayerDelegate Protocol Methods Designing the User Interface Releasing Memory Building and Running the Application Recording Audio on an iPhone with AVAudioRecorder (iOS 4) An Overview of the iPhone AVAudioRecorder Tutorial Creating the Recorder Project Declarations, Actions and Outlets Creating the AVAudioRecorder Instance Implementing the Action Methods Implementing the Delegate Methods Designing the User Interface Releasing Memory Testing the Application Detecting when an iPhone Headphone or Docking Connector is Unplugged (iOS 4) Detecting a Change to the Audio Hardware Route An Example iPhone Headphone and Dock Connector Detection Application Adding the AudioToolBox Framework to the Project Configuring the Property Listener Writing the Property Listener Callback Testing the Application

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