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iOS 8 Application Development in 24 Hours, Sams Teach Yourself: Application Development in 24 Hours(Sams Teach Yourself in 24 Hours)

iOS 8 Application Development in 24 Hours, Sams Teach Yourself: Application Development in 24 Hours(Sams Teach Yourself in 24 Hours)

          
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About the Book

In just 24 sessions of one hour each, learn how to build powerful applications for today’s hottest handheld devices: the iPhone and iPad! Using this book’s straightforward, step-by-step approach, you’ll master every skill and technology you need, from setting up your iOS development environment to building great user interfaces, sensing motion to writing multitasking applications. Each lesson builds on what you’ve already learned, giving you a rock-solid foundation for real-world success!

  • Step-by-step instructions carefully walk you through the most common iOS development tasks.
  • Quizzes and Exercises help you test your knowledge.
  • By the Way notes present interesting information related to the discussion.
  • Did You Know? tips show you easier ways to perform tasks.
  • Watch Out! cautions alert you to possible problems and give you advice on how to avoid them.

John Ray is currently serving as the Director of the Office of Research Information Systems at the Ohio State University. His many books include Using TCP/IP: Special Edition, Maximum Mac OS X Security, Mac OS X Unleashed, Teach Yourself Dreamweaver MX in 21 Days, and Sams Teach Yourself iOS 7 Application Development in 24 Hours.

 

Printed in full color–figures and code appear as they do in Xcode

  • Covers iOS 8 and up
  • Learn to navigate the Xcode 6.x development environment
  • Prepare your system and iDevice for efficient development
  • Get started quickly with Apple’s new language: Swift
  • Test code using the new iOS Playground
  • Understand the Model-View-Controller (MVC) development pattern
  • Visually design and code interfaces using Xcode Storyboards, Segues, Exits, Image Slicing, and the iOS Object Library
  • Use Auto Layout and Size Classes to adapt to different screen sizes and orientations
  • Build advanced UIs with Tables, Split Views, Navigation Controllers, and more
  • Read and write preferences and data, and create System Settings plug-ins
  • Use the iOS media playback and recording capabilities
  • Take photos and manipulate graphics with Core Image
  • Sense motion, orientation, and location with the accelerometer, gyroscope, and GPS
  • Integrate online services using Twitter, Facebook, Email, Web Views, and Apple Maps
  • Create universal applications that run on both the iPhone and iPad
  • Write background-aware multitasking applications
  • Trace, debug, and monitor your applications as they run


Table of Contents:

Introduction 1

 

HOUR 1: Preparing Your System and iDevice for Development 5

Welcome to the iOS Platform . . . . . . . 5

Becoming an iOS Developer . . . . . . . . . . . . . . . . . . . . . . . . . 9

Running an iOS App . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . 16

Developer Technology Overview . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . 23

Further Exploration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Q&A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Workshop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Activities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

 

HOUR 2: Introduction to Xcode and the iOS Simulator 29

Using Xcode . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . 29

Using the iOS Simulator . . . . . . . . . . . . . . . . . . . . . . . . 63

Further Exploration . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . 71

Summary . . . . . . . . . . . . . . . . . . . . . . . . . 71

Q&A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Workshop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Activities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

 

HOUR 3: Discovering Swift and the iOS Playground 77

Object-Oriented Programming and Swift . . . . . . . . . . . . . . . .. . . . . . . . . . . 77

The Terminology of Object-Oriented Development . . . . . . . . . . . . . . . .. . . . . . . . . 79

Exploring the Swift File Structure . . . . . . . . . . . . . . . . . . . . . . . . . 82

Swift Programming Basics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

Memory Management and Automatic Reference Counting . . . . . . . . . . . . . . . 107

Introducing the iOS Playground . . . . . .  . . . . . . . . . . . . . . . . . . 108

Further Exploration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

Q&A . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . 113

Workshop . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

Activities . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116

 

HOUR 4: Inside Cocoa Touch 117

What Is Cocoa Touch? . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

Exploring the iOS Technology Layers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119

Tracing the iOS Application Life Cycle . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . 126

Cocoa Fundamentals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127

Exploring the iOS Frameworks with Xcode . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . 135

Further Exploration . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . 143

Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143

Q&A . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143

Workshop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144

Activities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146

 

HOUR 5: Exploring Interface Builder 147

Understanding Interface Builder . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . 147

Creating User Interfaces . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . 154

Customizing the Interface Appearance . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . 164

Connecting to Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170

Further Exploration . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . 179

Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180

Q&A . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181

Workshop . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181

Activities . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . 184

 

HOUR 6: Model-View-Controller Application Design 185

Understanding the MVC Design Pattern . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185

How Xcode Implements MVC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187

Using the Single View Application Template . . . . . . . . . . . . . . . . . . . . . . . 191

Further Exploration . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . 209

Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . 210

Q&A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210

Workshop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210

Activities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213

 

HOUR 7: Working with Text, Keyboards, and Buttons 215

Basic User Input and Output . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . 215

Using Text Fields, Text Views, and Buttons . . . . . . . . . . . . . . . . . . . . . . . . . 217

Further Exploration . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246

Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246

Q&A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247

Workshop . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . 247

Activities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . 249

 

HOUR 8: Handling Images, Animation, Sliders, and Steppers 251

User Input and Output . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . 251

Creating and Managing Image Animations, Sliders, and Steppers . . . . . . . . . . . . . 253

Further Exploration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275

Summary . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . 276

Q&A . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 276

Workshop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277

Activities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279

 

HOUR 9: Using Advanced Interface Objects and Views 281

User Input and Output (Continued) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 281

Using Switches, Segmented Controls, and Web Views . . . . . . . . . . . . . . .. . . . . 287

Using Scrolling Views . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303

Further Exploration . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . . 312

Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313

Q&A . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313

Workshop . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313

Activities . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 316

 

HOUR 10: Getting the User’s Attention 317

Alerting the User . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . 317

Exploring User Alert Methods . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . 328

Further Exploration . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . 343

Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 344

Q&A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 344

Workshop . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . 344

Activities . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 347

 

HOUR 11: Implementing Multiple Scenes and Popovers 349

Introducing Multiscene Storyboards . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . 350

Using Segues . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . 377

Popovers, Universal Applications, and iPhones . . . . . . . . . . . . . . . .. . . . . . . . 390

Further Exploration . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . 395

Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 396

Q&A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 396

Workshop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 396

Activities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 399

 

HOUR 12: Making Choices with Toolbars and Pickers 401

Understanding the Role of Toolbars . . . . . . . . . . . . . . . . . . . . . . . . . . 401

Exploring Pickers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 404

Using the Date Picker . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 412

Using a Custom Picker . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 425

Further Exploration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 440

Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 441

Q&A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 441

Workshop . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 442

Activities . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 444

 

HOUR 13: Advanced Storyboards Using Navigation and Tab Bar Controllers 445

Advanced View Controllers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 445

Exploring Navigation Controllers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 447

Understanding Tab Bar Controllers . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . 452

Using a Navigation Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 458

Using a Tab Bar Controller . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . 469

Further Exploration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 479

Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 480

Q&A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . 480

Workshop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . 481

Activities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . 483

 

HOUR 14: Navigating Information Using Table Views and Split View Controllers 485

Understanding Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 486

Exploring the Split View Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 495

A Simple Table View Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 498

Creating a Master-Detail Application . . . . . . . . . . . . . . .  . . . . . . . . . . . 507

Further Exploration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 521

Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 522

Q&A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . 523

Workshop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . 523

Activities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . 525

 

HOUR 15: Reading and Writing Application Data 527

iOS Applications and Data Storage . . . . . . . . . . . . . . . . . . . . . . . . 527

Data Storage Approaches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 530

Creating Implicit Preferences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 539

Implementing System Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 546

Implementing File System Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 559

Further Exploration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 567

Summary . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 568

Q&A . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 568

Workshop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 569

Activities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 571

 

HOUR 16: Building Responsive User Interfaces 573

Responsive Interfaces . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . 573

Using Auto Layout . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . . 578

Programmatically Defined Interfaces . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . 600

Further Exploration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 607

Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 607

Q&A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 608

Workshop . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 608

Activities . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 610

 

HOUR 17: Using Advanced Touches and Gestures 611

Multitouch Gesture Recognition . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . 611

Adding Gesture Recognizers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 612

Using Gesture Recognizers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 614

Further Exploration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 635

Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 635

Q&A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 636

Workshop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 636

Activities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 638

 

HOUR 18: Sensing Orientation and Motion 639

Understanding Motion Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 639

Accessing Orientation and Motion Data . . . . . . . . . . . .  . . . . . . . . . . . . . . 643

Sensing Orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 647

Detecting Acceleration, Tilt, and Rotation . . . . . . . . . . . . . . . . . .  . . . . . . . . . . 652

Further Exploration . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . 663

Summary . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 664

Q&A . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 664

Workshop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 664

Activities . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 666

 

HOUR 19: Working with Rich Media 669

Exploring Rich Media . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . 669

The Media Playground Application . . . . . . . . . .. . . . . . . . . . . . . . . 683

Further Exploration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 708

Summary . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 709

Q&A . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 709

Workshop . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 710

Activities . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 712

 

HOUR 20: Interacting with Other iOS Services 713

Extending iOS Service Integration . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . 713

Using the Address Book, Email, Social Networking, and Maps . . . . . . . . . . . . . . . . . . . . 730

Further Exploration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 746

Summary . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 746

Q&A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 746

Workshop . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 747

Activities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 749

 

HOUR 21: Implementing Location Services 751

Understanding Core Location . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . 751

Creating a Location-Aware Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . 758

Further Exploration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 777

Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 778

Q&A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 778

Workshop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 778

Activities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 781

 

HOUR 22: Building Background-Ready Applications 783

Understanding iOS Backgrounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 783

Disabling Backgrounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 789

Handling Background Suspension . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . 790

Implementing Local Notifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 792

Using Task-Specific Background Processing. . . . . . . . . . . . . . . . . . . . . 795

Completing a Long-Running Background Task . . . . . . . . . .  . . . . . . . . . . . . . 800

Performing a Background Fetch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 806

Further Exploration . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . 810

Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 811

Q&A . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 811

Workshop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 812

Activities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 814

 

HOUR 23: Building Universal Applications 815

Universal Application Development . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . 815

Size Classes . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . 819

Further Exploration . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . 833

Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . 834

Q&A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 834

Workshop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 834

Activities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . 836

 

HOUR 24: Application Tracing, Monitoring, and Debugging 837

Instant Feedback with NSLog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 838

Using the Xcode Debugger . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . 841

Further Exploration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 858

Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 859

Q&A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 859

Workshop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 859

Activities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 862

 

 

 

Index 863

 

ONLINE APPENDIX A: Introducing Xcode Source Control


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Product Details
  • ISBN-13: 9780672337239
  • Publisher: Pearson Education (US)
  • Publisher Imprint: Sams Publishing
  • Depth: 38
  • Height: 231 mm
  • No of Pages: 928
  • Spine Width: 31 mm
  • Weight: 1198 gr
  • ISBN-10: 0672337231
  • Publisher Date: 30 Apr 2015
  • Binding: SA
  • Edition: 6 PAP/PSC
  • Language: English
  • Series Title: Sams Teach Yourself in 24 Hours
  • Sub Title: Application Development in 24 Hours
  • Width: 179 mm


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