Beginning iPhone 3 Development: Exploring the iPhone SDK

586 Pages·25.345 MB·English

by  Dave Mark, Jeff LaMarche

Cyan yelloW SPoT MaTTe
MaGenTa BlaCk
PanTone 123 C
BookS for ProfeSSIonalS By ProfeSSIonalS® Companion
• a complete, soup-to-nuts course in iphone and ipod touch AeBvBaiolaoblke A complete course in iPhone foarn SddU rkepv d3iasetedd
and iPod touch programming
programming, written in an easy-to-read style and perfect for e
g
beginners and advanced readers alike
i
• n
packed full of intricate, reusable examples that showcase the
n
nearly endless possibilities of the iphone Sdk
i
n
•
Updated edition fully compatible with apple’s iphone Sdk 3 g

a i
re you a programmer looking for a new challenge? Does the thought of
P
building your very own iPhone application make your heart race and your
pulse quicken? If so, then Beginning iPhone 3 Development is the book for you. h
assuming a minimal working knowledge of objective-C, this book starts with
o
the basics, walking you through the process of downloading and installing
apple’s free iPhone SDk 3 and stepping you through the creation of your first n
simple iPhone application. you’ll move on from there, mastering the iPhone
interface elements that you’ve come to know and love, such as buttons, e
switches, pickers, toolbars, and sliders.

you’ll master tables and learn how to save your data using the iPhone file system, 3
as well as using SQlite, iPhone’s built-in database management system. you’ll also

draw using Quartz 2D and openGl eS; add gestural support to your applications; D
work with the camera, the photo library, the accelerometer, preferences, local-
ization, and Core location; and do much more. e
apple’s iPhone SDk 3, this book, and your imagination are all you’ll need to v
start building your very own best-selling iPhone applications.
e
Beginning
Dave Mark is a longtime mac developer and author of a number
of bestselling books including Learn C on the Mac, the Macintosh l
Programming Primer series, and Ultimate Mac Programming. o
Jeff LaMarche is a seasoned mac developer. He’s written about Cocoa p iPhone 3 Development
and objective-C for MacTech Magazine and has written articles for
m
apple’s developer technical Services web site.
e
n Exploring the iPhone SDK
S
e
tl t
ti
d
e
t
a
l
e L
r a
M Dave Mark  |  Jeff LaMarche
aM
r
Companion eBook See laSt page for detailS on $10 eBook verSion ISBN 978-1-4302-2459-4 char
ek
53999
US $39.99
Shelve in
Mobile Computing/Macintosh Programming
SOURCE CODE ONLINE
User level:
www.apress.com
Beginner–Intermediate 9 781430 224594
www.iphonedevbook.com
this print for content only—size & color not accurate spine = 1.114" 584 page count

Beginning iPhone 3
Development
Exploring the iPhone SDK
Dave Mark
Jeff LaMarche
24594FM.indd 1 6/25/09 2:18:04 PM
Beginning iPhone 3 Development: Exploring the iPhone SDK
Copyright © 2009 by Dave Mark and Jeff LaMarche
All rights reserved. No part of this work may be reproduced or transmitted in any form or by any means, electronic
or mechanical, including photocopying, recording, or by any information storage or retrieval system, without the
prior written permission of the copyright owner and the publisher.
ISBN-13 (pbk): 978-1-4302-2459-4
ISBN-13 (electronic): 978-1-4302-2460-0
Printed and bound in the United States of America 9 8 7 6 5 4 3 2 1
Trademarked names may appear in this book. Rather than use a trademark symbol with every occurrence of a
trademarked name, we use the names only in an editorial fashion and to the benefit of the trademark owner, with
no intention of infringement of the trademark.
Lead Editors: Clay Andres, Douglas Pundick
Technical Reviewer: Mark Dalrymple
Editorial Board: Clay Andres, Steve Anglin, Mark Beckner, Ewan Buckingham, Tony Campbell, Gary Cornell,
Jonathan Gennick, Michelle Lowman, Matthew Moodie, Jeffrey Pepper, Frank Pohlmann, Ben Renow-Clarke,
Dominic Shakeshaft, Matt Wade, Tom Welsh
Project Managers: Grace Wong, Beth Christmas
Copy Editors: Kim Wimpsett, Heather Lang
Associate Production Director: Kari Brooks-Copony
Senior Production Editor: Laura Cheu
Compositor: Dina Quan
Proofreader: Nancy Sixsmith
Indexer: BIM Indexing & Proofreading Services
Artist: April Milne
Cover Designer: Kurt Krames
Manufacturing Director: Tom Debolski
Distributed to the book trade worldwide by Springer-Verlag New York, Inc., 233 Spring Street, 6th Floor, New York,
NY 10013. Phone 1-800-SPRINGER, fax [phone], e-mail [email protected], or visit
http://www.springeronline.com.
For information on translations, please contact Apress directly at 2855 Telegraph Avenue, Suite 600, Berkeley, CA
94705. Phone [phone], fax [phone], e-mail [email protected], or visit http://www.apress.com.
Apress and friends of ED books may be purchased in bulk for academic, corporate, or promotional use. eBook
versions and licenses are also available for most titles. For more information, reference our Special Bulk Sales–
eBook Licensing web page at http://www.apress.com/info/bulksales.
The information in this book is distributed on an “as is” basis, without warranty. Although every precaution has
been taken in the preparation of this work, neither the author(s) nor Apress shall have any liability to any person or
entity with respect to any loss or damage caused or alleged to be caused directly or indirectly by the information
contained in this work.
The source code for this book is available to readers at http://www.apress.com.
24594FM.indd 2 6/25/09 2:18:04 PM
To Deneen, you are the light of my life. LFU4FREIH. . .
—Dave
To the most important people in my life, my wife and kids.
—Jeff
24594FM.indd 3 6/25/09 2:18:04 PM
24594FM.indd 4 6/25/09 2:18:05 PM
Contents at a Glance
About the Author .............................................................xvii
About the Technical Reviewer ................................................. xix
Acknowledgments ............................................................ xxi
Preface to Beginning iPhone 3 Development ...................................xxiii
Preface to Beginning iPhone 2 Development ....................................xxv
chapter 1 Welcome to the Jungle ...................................... 1
chapter 2 Appeasing the Tiki Gods ....................................13
chapter 3 Handling Basic Interaction ..................................31
chapter 4 More User Interface Fun ....................................57
chapter 5 Autorotation and Autosizing ................................99
chapter 6 Multiview Applications ....................................119
chapter 7 Tab Bars and Pickers .......................................145
chapter 8 Introduction to Table Views ................................193
chapter 9 Navigation Controllers and Table Views .....................247
chapter 10 Application Settings and User Defaults .....................321
chapter 11 Basic Data Persistence .....................................347
chapter 12 Drawing with Quartz and OpenGL .........................397
chapter 13 Taps, Touches, and Gestures ...............................437
chapter 14 Where Am I? Finding Your Way with Core Location ..........465
chapter 15 Whee! Accelerometer! .....................................477
chapter 16 iPhone Camera and Photo Library ..........................499
chapter 17 Application Localization ...................................511
chapter 18 Where to Next? ...........................................531
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 537
v
24594FM.indd 5 6/25/09 2:18:05 PM
24594FM.indd 6 6/25/09 2:18:05 PM
Contents
About the Author .............................................................xvii
About the Technical Reviewer ................................................. xix
Acknowledgments ............................................................ xxi
Preface to Beginning iPhone 3 Development ...................................xxiii
Preface to Beginning iPhone 2 Development ....................................xxv
chapter 1 Welcome to the Jungle . . . . . . . . . . . . . . . . . . . . . . . . . . .1
What This Book Is ..............................................2
What You Need Before You Can Begin ...........................2
What You Need to Know Before You Begin ......................5
What’s Different About Coding for iPhone? .....................6
Only One Running Application ............................6
Only One Window .........................................6
Limited Access ............................................6
Limited Response Time ....................................7
Limited Screen Size .......................................7
Limited System Resources .................................7
No Garbage Collection ....................................8
Some New Stuff ...........................................8
A Different Approach ......................................8
What’s in This Book ............................................8
Chapter 2 .................................................8
Chapter 3 .................................................8
Chapter 4 .................................................9
Chapter 5 .................................................9
Chapter 6 .................................................9
Chapter 7 .................................................9
Chapter 8 .................................................9
Chapter 9 .................................................9
Chapter 10 ................................................9
Chapter 11 ................................................9
Chapter 12 ...............................................10
Chapter 13 ...............................................10
Chapter 14 ...............................................10
vii
24594FM.indd 7 6/25/09 2:18:05 PM
viii CONTENTS
Chapter 15 ...............................................10
Chapter 16 ...............................................10
Chapter 17 ...............................................10
Chapter 18 ...............................................10
What’s New in This Update? ...................................11
Are You Ready? ...............................................11
chapter 2 Appeasing the Tiki Gods . . . . . . . . . . . . . . . . . . . . . . . 13
Setting Up Your Project in Xcode ..............................13
The Xcode Project Window ...............................16
Introducing Interface Builder ..................................19
What’s in the Nib File? ....................................21
Adding a Label to the View ...............................22
Some iPhone Polish—Finishing Touches .......................25
Ready to Compile and Run ...............................28
Bring It on Home .............................................29
chapter 3 Handling Basic Interaction . . . . . . . . . . . . . . . . . . . . . 31
The Model-View-Controller Paradigm ..........................31
Creating Our Project ..........................................33
Creating the View Controller ..................................33
Outlets ..................................................34
Actions ..................................................36
Adding Actions and Outlets to the View Controller ........36
Adding Actions and Outlets to the Implementation File ...39
Using the Application Delegate ...............................44
Editing MainWindow.xib ......................................47
Editing Button_FunViewController.xib .........................49
Creating the View in Interface Builder .....................49
Connecting Everything ..................................52
Trying It Out .............................................56
Bring It on Home .............................................56
chapter 4 More User Interface Fun . . . . . . . . . . . . . . . . . . . . . . . 57
A Screen Full of Controls ......................................58
Active, Static, and Passive Controls ............................59
Creating the Application ......................................60
Importing the Image .....................................60
Implementing the Image View and Text Fields. . . . . . . . . . . . .61
24594FM.indd 8 6/25/09 2:18:05 PM