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iOS SDK Development

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Copyright © 2012 The Pragmatic Programmers, LLC.

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No part of this publication may be reproduced, stored in a retrieval system, or transmitted,in any form, or by any means, electronic, mechanical, photocopying, recording, or otherwise,

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The Pragmatic BookshelfDallas, Texas • Raleigh, North Carolina

iOS SDK Development

Chris AdamsonBill Dudney

The Pragmatic BookshelfDallas, Texas • Raleigh, North Carolina

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The team that produced this book includes:

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Copyright © 2012 The Pragmatic Programmers, LLC.All rights reserved.

No part of this publication may be reproduced, stored in a retrieval system, ortransmitted, in any form, or by any means, electronic, mechanical, photocopying,recording, or otherwise, without the prior consent of the publisher.

Printed in the United States of America.ISBN-13: 978-1-934356-94-4Encoded using the finest acid-free high-entropy binary digits.Book version: P1.0—November 2012

Contents

Acknowledgments . . . . . . . . . . . ?

Introduction . . . . . . . . . . . . . ?

1. Tweetings and Welcome to iOS 6 . . . . . . . . ?Tooling Up ?1.1

1.2 Our First Project ?1.3 Building Our User Interface ?1.4 Coding the App ?1.5 Tweet, Sweet Success ?

2. Programming for iOS . . . . . . . . . . . ?Introducing Objective-C ?2.1

2.2 Methods and Messaging ?2.3 Memory Management ?2.4 Managing an Object’s Properties ?2.5 Auto Layout and the iPhone 5 ?2.6 The iOS Programming Stack ?2.7 Building Views with UIKit ?2.8 Using the Foundation Classes ?2.9 Internationalization ?2.10 Wrap-Up ?

3. Asynchronicity and Concurrency . . . . . . . . ?Encapsulating Concurrent Code with Blocks ?3.1

3.2 Grand Central Dispatch ?3.3 Concurrency and UIKit ?3.4 Sorting with Blocks ?3.5 Wrap-Up ?

4. View Controllers . . . . . . . . . . . . ?Practicing MVC ?4.1

4.2 Working with a View’s Life Cycle ?4.3 Building a Detailed Recipe View ?4.4 Wrap-Up ?

5. Table Views . . . . . . . . . . . . . ?The UITableView ?5.1

5.2 Displaying a List of Recipes ?5.3 Editing a Table ?5.4 Working with Cell Styles ?5.5 Recipe Details ?5.6 Wrap-Up ?

6. Storyboards and Container Controllers . . . . . . ?Laying Out Storyboards ?6.1

6.2 Using Container Controllers ?6.3 Moving Around with Navigation Controllers ?6.4 Managing View Controllers in Navigation Controllers ?6.5 Transferring App Control and Data ?6.6 Returning App Control and Data ?6.7 Wrap-Up ?

7. Documents and iCloud . . . . . . . . . . ?Making Recipes Persist ?7.1

7.2 Telling the Recipe Document About Edits ?7.3 Sharing Recipes ?7.4 Opening Shared Recipe Documents ?7.5 Storing Documents in iCloud ?7.6 Wrap-Up ?

8. Drawing and Animating . . . . . . . . . . ?Drawing Images ?8.1

8.2 Drawing Paths ?8.3 Using Shadows ?8.4 Rotating and Animating Images ?8.5 Drawing Shadows ?8.6 Wrap-Up ?

9. Testing and Fixing Apps . . . . . . . . . . ?Unit Testing ?9.1

9.2 Debugging Our App ?

Contents • vi

9.3 User Interface Testing ?9.4 Testing Performance with Instruments ?9.5 Wrap-Up ?

10. The App Store and Beyond . . . . . . . . . ?Protecting Our Code with Source Control ?10.1

10.2 Running on the Device ?10.3 Submitting Apps for Review ?10.4 After We Ship ?10.5 Onward! ?

A1. Wait! I Forgot (or Never Learned) C! . . . . . . . ?A1.1 C: The Basics ?A1.2 Pointers ?A1.3 Dynamic Memory Management ?

Bibliography . . . . . . . . . . . . . ?

Index . . . . . . . . . . . . . . . ?

Contents • vii