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The professional programmer's Deitel® guide to iPhone® and iPad® app development using iOS® 8, SwiftT, Xcode® 6, and Cocoa Touch®

Billions of apps have been downloaded from Apple's App Store! This book gives you everything you'll need to start developing great iOS 8 apps quickly using Swift-Apple's programming language of the future. You'll also learn what makes a great app and how to publish your apps in the App Store. The book uses an app-driven approach-each new technology is discussed in the context of seven fully tested iOS 8 apps, complete with syntax shading, code highlighting, code walkthroughs and sample outputs. Apps you'll develop include:

Welcome App
Cannon Game
Tip Calculator
Doodlz
Twitter® Searches
Address Book
Flag Quiz
Practical, Example-Rich Coverage of:

iOS® 8, XCode® 6, SwiftT
Object-Oriented Programming with SwiftT and Cocoa Touch®
UI Design, Storyboards, Auto Layout, Outlets, Outlet Collections, Actions
View Controllers, Views, View Animations
Event Handling, Multi-Touch
Single View, Master-Detail, Game Templates
Accessibility, Internationalization
Core Data Database Access
User Defaults, iCloud Key-Value Storage
Social Framework Sharing
SpriteKit Game Programming: Animation, Graphics, Physics, Collision Detection
Accelerometer and Motion Event Handling
Grand Central Dispatch
App Store, Pricing, Monetization and more.
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For information on Deitel's Dive Into® Series programming training courses delivered at organizations worldwide visit www.deitel.com/training or write to deitel@deitel.com
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About This Book

Sales of iOS devices and app downloads have been explosive. The first-generation iPhone sold 6.1 million units in its initial five quarters of availability (bit.ly/iPhoneGen1l). The iPhone 6 and iPhone 6 Plus, released in September 2014, sold over 10 million combined in their first weekend of availability (bit.ly/FirstiPhone6Weekend). iPad sales are equally impressive. The first generation iPad, launched in April 2010, sold 3 million units in its first 80 days of availability (bit.ly/iPadGen1). In just the first quarter of 2014, Apple sold a record 26 million iPads (bit.ly/iPad2014Q1). At the time of this writing, there were over 1.2 million apps in the App Store (bit.ly/iOSApps2014) and more than 75 billion apps have been downloaded!

This book presents leading-edge computing technologies for professional software developers. At the heart of the book is the Deitel "app-driven approachö- a variant of Deitel's live-code approach-concepts are presented in the context of complete working iOS apps, rather than using code snippets. The introduction and app test drives at the beginning of each chapter show one or more sample executions. The book's source code is available at: www.deitel.com/books/iOS8FP1.

You'll quickly learn everything you need to start building iOS 8 apps-beginning with a test-drive of the Tip Calculator app in Chapter 1, then building your first apps in Chapter 2 with visual programming and in Chapter 3 with Swift. By the time you reach Chapter 9, you'll be ready to create your own apps for submission to the App Store. We'll overview the submission process, including uploading your apps, deciding whether to sell your apps or offer them for free, and marketing them using in-app advertising, social media, Internet public relations and more.




Preface xix

Before You Begin xxvii

Chapter 1: Introduction to iOS 8 App Development and Swift 1

1.1 Introduction 2

1.2 iPhone and iPad Sales Data 3

1.3 Gestures 4

1.4 Sensors 5

1.5 Accessibility 6

1.6 iPhone 6 and iPhone 6 Plus 7

1.7 iOS Operating System History and Features 8

1.8 iOS 8 16

1.9 Apple Watch 18

1.10 App Store 19

1.11 Objective-C 20

1.12 Swift: Apple's Programming Language of the Future 20

1.13 Can I Use Swift Exclusively? 24

1.14 Cocoa Touch® iOS Frameworks 25

1.15 Xcode 6® Integrated Development Environment 31

1.16 Object Oriented-Programming Review 33

1.17 Test-Driving the Tip Calculator App in the iPhone and iPad Simulators 36

1.18 What Makes a Great App? 38

1.19 iOS Security 40

1.20 iOS Publications and Forums 41

1.21 Wrap-Up 42

Chapter 2: Welcome App 43

Dive-Into® Xcode: Introducing Visual User Interface Design with Cocoa Touch, Interface Builder, Storyboarding and Auto Layout, Universal Apps, Accessibility, Internationalization

2.1 Introduction 44

2.2 Technologies Overview 45

2.3 Creating a Universal App Project with Xcode 46

2.4 Xcode Workspace Window 49

2.5 Storyboarding the Welcome App's UI 52

2.6 Running the Welcome App 64

2.7 Making Your App Accessible 67

2.8 Internationalizing Your App 69

2.9 Wrap-Up 74

Chapter 3: Tip Calculator App 75

Introducing Swift, Text Fields, Sliders, Outlets, Actions, View Controllers, Event Handling, NSDecimalNumber, NSNumberFormatter and Automatic Reference Counting

3.1 Introduction 76

3.2 Technologies Overview 77

3.3 Building the App's UI 85

3.4 Creating Outlets with Interface Builder 96

3.5 Creating Actions with Interface Builder 99

3.6 Class ViewController 100

3.7 Wrap-Up 109

Chapter 4: Twitter® Searches App 111

Master-Detail Applications, Split View Controllers, Navigation Controllers, Storyboard Segues, Social Framework Sharing, User Defaults, iCloud Key-Value Storage, Collections, Web Views, Alert Dialogs

4.1 Introduction 112

4.2 Test-Driving the App 113

4.3 Technologies Overview 120

4.4 Building the App's UI 128

4.5 Class Model 131

4.6 Class MasterViewController 141

4.7 Class DetailViewController 154

4.8 Wrap-Up 157

Chapter 5: Flag Quiz App 158

UISegmentedControls, UISwitches, Outlet Collections, View Animations, UINavigationController, Segues, NSBundle, Scheduling Tasks with Grand Central Dispatch

5.1 Introduction 159

5.2 Test-Driving the Flag Quiz App 161

5.3 Technologies Overview 165

5.4 Building the GUI 170

5.5 Model Class 178

5.6 QuizViewController Class 184

5.7 SettingsViewController Class 193

5.8 Wrap-Up 196

Chapter 6: Cannon Game App 198

Xcode Game Template, SpriteKit, Animation, Graphics, Sound, Physics, Collision Detection, Scene Transitions, Listening for Touches

6.1 Introduction 199

6.2 Test-Driving the Cannon Game App 202

6.3 Technologies Overview 203

6.4 Creating the Project and Classes 209

6.5 Class GameViewController 211

6.6 Class Blocker 213

6.7 Class Target 218

6.8 Class Cannon 221

6.9 Class GameScene 226

6.10 Class GameOverScene 235

6.11 Programmatic Internat