Tài liệu Beginning PhoneGap: Mobile Web Framework for JavaScript and HTML5 docx

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BEGINNING PHONEGAP

INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xix

CHAPTER 1 Introducing PhoneGap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

CHAPTER 2 Installing and Confi guring PhoneGap . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

CHAPTER 3 Basic Walkthrough . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31

CHAPTER 4 Events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

CHAPTER 5 Working with the Device, the Network, and Notifi cations . . . . . . . . . . . 59

CHAPTER 6 Accelerometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

CHAPTER 7 Compass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

CHAPTER 8 Geolocation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

CHAPTER 9 Media . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

CHAPTER 10 Camera . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129

CHAPTER 11 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143

CHAPTER 12 Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157

CHAPTER 13 Contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179

CHAPTER 14 Capture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189

CHAPTER 15 Creating a Note-Taking Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197

APPENDIX A Answers to Exercises . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213

APPENDIX B Tools for PhoneGap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235

APPENDIX C PhoneGap .js . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247

APPENDIX D PhoneGap Plug-ins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 333

INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 349

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BEGINNING

PhoneGap

Thomas Myer

John Wiley & Sons, Inc.

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Beginning PhoneGap

Published by

John Wiley & Sons, Inc.

10475 Crosspoint Boulevard

Indianapolis, IN 46256

www.wiley.com

Copyright © 2012 by John Wiley & Sons, Inc., Indianapolis, Indiana

Published simultaneously in Canada

ISBN: 978-1-118-15665-0

ISBN: 978-1-118-22600-1 (ebk)

ISBN: 978-1-118-23932-2 (ebk)

ISBN: 978-1-118-25399-1 (ebk)

Manufactured in the United States of America

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Limit of Liability/Disclaimer of Warranty: The publisher and the author make no representations or warranties with

respect to the accuracy or completeness of the contents of this work and specifi cally disclaim all warranties, including

without limitation warranties of fi tness for a particular purpose. No warranty may be created or extended by sales or

promotional materials. The advice and strategies contained herein may not be suitable for every situation. This work

is sold with the understanding that the publisher is not engaged in rendering legal, accounting, or other professional

services. If professional assistance is required, the services of a competent professional person should be sought. Neither

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Inc., is not associated with any product or vendor mentioned in this book.

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To my wife, Hope, for loving me anyway.

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ABOUT THE AUTHOR

THOMAS MYER works and lives in Austin, Texas. He’s been a PHP web developer for about ten

years, and a mobile apps developer for the past three. Until recently, he was the Top Dog of Triple

Dog Dare Media, but now works for Deal Management, LLC, out of Minnesota, where he builds

web and mobile apps. You can follow him at @myerman on Twitter.

ABOUT THE TECHNICAL EDITORS

BRIAN LEROUX is the lead software architect at Nitobi Inc. where he focuses on delivering web and

mobile apps and helping developers all over the world write their apps. He is a contributor to the

popular PhoneGap Open Source framework, and is the creator of XUI and Lawnchair.

DANNY LOWE was born in Huntington Beach, and raised in Southern California, but now calls

Austin, Texas, his home. He is a computer programming superhero who has been skillfully hiding

his secret identity since 1996. When he is not writing code and saving the careers of project

managers by leaping tall deadlines in a single bound, Lowe is playing music, writing fi ction

and poetry, or hanging out with his wife, Stephanie, and two sons. Follow him on Twitter at

@DannyInAustin.

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ACQUISITIONS EDITOR

Mary James

PROJECT EDITOR

Kevin Shafer

TECHNICAL EDITORS

Brian LeRoux

Danny Lowe

SENIOR PRODUCTION EDITOR

Debra Banninger

COPY EDITOR

Kim Cofer

EDITORIAL MANAGER

Mary Beth Wakefi eld

FREELANCER EDITORIAL MANAGER

Rosemarie Graham

ASSOCIATE DIRECTOR OF MARKETING

David Mayhew

MARKETING MANAGER

Ashley Zurcher

BUSINESS MANAGER

Amy Knies

PRODUCTION MANAGER

Tim Tate

VICE PRESIDENT AND EXECUTIVE GROUP

PUBLISHER

Richard Swadley

VICE PRESIDENT AND EXECUTIVE

PUBLISHER

Neil Edde

ASSOCIATE PUBLISHER

Jim Minatel

PROJECT COORDINATOR, COVER

Katie Crocker

PROOFREADER

Nancy Carrasco

INDEXER

Robert Swanson

COVER DESIGNER

Ryan Sneed

COVER IMAGE

© tc397 / iStockPhoto

CREDITS

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ACKNOWLEDGMENTS

MANY THANKS TO Mary James of Wiley, who called out of the blue one day and wondered if I would

like to work on a PhoneGap book. The same thanks go to Kevin Shafer and the fi ne editorial team at

Wiley for taking my garbled gobblydegook and making it into an actual book.

This book would not be complete without my technical reviewers: Brian Leroux, who took a lot

of time out of his busy schedule to give me his thoughts on the manuscript; and Danny Lowe, who

proved invaluable as he tested every line of code in the examples. I know I was a pain in the rear to

work with, so thanks for putting up with me.

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CONTENTS

INTRODUCTION xix

CHAPTER 1: INTRODUCING PHONEGAP 1

Using PhoneGap 1

Looking at a Quick Showcase 2

Taking a Basic Run-Through 5

History of PhoneGap 8

Getting to Know the Origins of PhoneGap 8

Assessing PhoneGap’s Current Status 8

Understanding What PhoneGap Is Good/Bad At 9

Understanding the Basics of a PhoneGap Application 10

What You Can Build with PhoneGap 10

Quick Overview of the API 12

Mobile Design Issues 13

Summary 15

CHAPTER 2: INSTALLING AND CONFIGURING PHONEGAP 17

Downloading PhoneGap 17

Downloading PhoneGap for iOS 18

Downloading PhoneGap for Android 20

Downloading PhoneGap for BlackBerry 22

Downloading PhoneGap for webOS 23

Downloading PhoneGap for Symbian 24

Using PhoneGap Build 25

Choosing Your Environment 27

Summary 28

CHAPTER 3: BASIC WALKTHROUGH 31

Using PhoneGap with Xcode 31

Using PhoneGap with an Android Device 36

Using PhoneGap with a BlackBerry Device 41

Using PhoneGap with Other Devices 42

Summary 42

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