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Jquery Mobile Cookbook www.it-ebooks.info jQuery Mobile Cookbook Over 80 recipes with examples and practical tips to help you quickly learn and develop cross-platform applications with jQuery Mobile Chetan K Jain BIRMINGHAM - MUMBAI www.it-ebooks.info jQuery Mobile Cookbook Copyright © 2012 Packt Publishing All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, without the prior written permission of the publisher, except in the case of brief quotations embedded in critical articles or reviews. Every effort has been made in the preparation of this book to ensure the accuracy of the information presented. However, the information contained in this book is sold without warranty, either express or implied. Neither the author, nor Packt Publishing, and its dealers and distributors will be held liable for any damages caused or alleged to be caused directly or indirectly by this book. Packt Publishing has endeavored to provide trademark information about all of the companies and products mentioned in this book by the appropriate use of capitals. However, Packt Publishing cannot guarantee the accuracy of this information. First published: November 2012 Production Reference: 1011112 Published by Packt Publishing Ltd. Livery Place 35 Livery Street Birmingham B3 2PB, UK. ISBN 978-1-84951-722-5 www.packtpub.com Cover Image by Abhishek Pandey ([email protected]) www.it-ebooks.info Credits Author Project Coordinator Chetan K Jain Vishal Bodwani Reviewers Proofreader Shaun Dunne Aaron Nash Ankit Garg Maria Gould Yousef Jadallah Indexer Acquisition Editor Hemangini Bari Usha Iyer Production Coordinator Lead Technical Editor Arvindkumar Gupta Arun Nadar Cover Work Technical Editors Arvindkumar Gupta Kirti Puajri Lubna Shaikh www.it-ebooks.info About the Author Chetan K Jain loves to code, and has been writing code for over 16 years now. He is a Senior Architect, and has worked on mobile technologies for over 4 years for Nokia. Since then, he has moved on to work as a freelance consultant. Chetan has significant experience in writing cross-platform mobile apps using jQuery Mobile, HTML5, CSS3, JavaScript, Nodejs, and has also worked extensively on Qt. Prior to mobile technologies, he has worked with Java technology and was also certified as an MCSD and MCSE in his early days. Chetan is an active contributor to open source development, and tries to help jQuery Mobile development whenever he can. He regularly participates in developer forums, and was earlier a top-ranked member and a "mad scientist" in the Nokia Qt Developer Forum. Chetan was born in Bangalore and lives there with his wife Shwetha and son Tanmay. The only time he ventured to live away from Bangalore was when he worked for over 4 years in the USA. His adventure didn't end there. He did a solo US cross country drive in his two door coupe from the east coast to the west and back, driving alone for over 8000 plus miles in 16 days to experience and live life as he calls it. His travelogue can be found at http://adventure.chetankjain.net. Chetan has contributed and published over 15 books to Gutenberg as a volunteer. He has also published four books on Jaina Literature and History written by his mother Saraswathamma. He is a voracious reader, and his other interests include music, movies, and travelling. Photography is his favorite hobby, and his clicks can be found at http://www.facebook.com/chetankjainphotos/photos_stream. Chetan can be reached at [email protected]. He also blogs at http://dev.chetankjain.net. www.it-ebooks.info Acknowledgement First and foremost, my wife Shwetha and son Tanmay deserve full credit for the completion of this book. This book was possible only because of their understanding, support, and countless sacrifices. For days I would be unavailable, miss many family events, and yet they continued to shower me with all their love and affection. I thank my parents, Mahendra Kumar Jaini and Saraswathamma, for their love, support, and for everything that I am today. I miss my father, but he is always there with me. My mother is my muse, and I follow her footsteps now as an author. I have a very supportive sister Suma Jain and nephew Poojith Jain who never fail to pep me up. Ashwin Das, is family, and I enjoy bouncing all my ideas with him. I thank my very close friend, Chidananda P, for all the help and support that he continues to give me. I thank my childhood friend Anand Rao for always being there as my buddy and for encouraging every project of mine. My venture into mobile space has been very enjoyable. I thank all my former colleagues in Nokia—Prahalad Rao for being a great manager and for directly supporting me at work when I started this book, Sathish EV for all those initial reviews, Bhuwan Lodha for encouraging me to blog, Ashwin Das, Karthik S, Prasad S, Pavanesh, and Krishna KN for all the suggestions given. A very special thanks to Govind Ashrit, who actually urged me to write this book. Thank you guys! I also thank Shaun Dunne, Ankit Garg, and Yousef Jadallah for reviewing the technical content of the book, and suggesting valuable changes and corrections. Finally, I thank Packt Publishers and Usha Iyer for giving me this opportunity. My heartfelt thanks to my editors Vishal Bodwani, Arun Nadar, Kirti Pujari, and Lubna Shaikh for tirelessly reviewing my writing—multiple times, and giving me many valuable suggestions. You guys were just great! www.it-ebooks.info About the Reviewers Shaun Dunne is a Developer working for SapientNitro in London, UK, and has been coding since 2008 with a passion for JavaScript and all the front-end goodness. Working for a large agency over the past few years, Shaun has had the chance to use various web technologies to build large scale applications, and found a passion for getting other people excited about the web. Shaun has been hacking the mobile web for a couple of years, trying and testing all the tools available and sharing his discoveries where he can, to ensure that others are aware of what is available to use and in what situation. When he's not working or spending some family time with his kids, he can usually be found on the web, tinkering, blogging, and building things. He's currently working on his own book, a self-published title about SASS and Friends called UberCSS, which is due to be released in the winter of 2012. Ankit Garg is a Front-End Developer at iGate Global Solutions. He likes to call himself a Mobile Web Application Developer, a JavaScript Developer, and a blogger. He likes reading, practicing, and blogging new things in the Mobile Web and JavaScript space. If you would like to reach him, send him an e-mail to [email protected]. www.it-ebooks.info Yousef J. Jadallah is a software developer. He has good hands-on experience of web and .NET technologies, such as ASP.NET, SQL Server, AJAX, ASP.NET AJAX, C#,VB.NET, jQuery Mobile, HTML5, Web Services, and REST. He spends most of his leisure time helping the communities on Microsoft technologies, specifically in the Microsoft official forum. He is honored with the Microsoft Community Contributor Award - 2011 (CCA). He is from Jordan. You can contact with him through his blog: http://weblogs.asp.net/yousefjadallah. www.it-ebooks.info www.PacktPub.com Support files, eBooks, discount offers and more You might want to visit www.PacktPub.com for support files and downloads related to your book. Did you know that Packt offers eBook versions of every book published, with PDF and ePub files available? You can upgrade to the eBook version atwww.PacktPub.com and as a print book customer, you are entitled to a discount on the eBook copy. Get in touch with us at [email protected] for more details. At www.PacktPub.com, you can also read a collection of free technical articles, sign up for a range of free newsletters and receive exclusive discounts and offers on Packt books and eBooks. http://PacktLib.PacktPub.com Do you need instant solutions to your IT questions? PacktLib is Packt's online digital book library. Here, you can access, read and search across Packt's entire library of books. Why Subscribe? f Fully searchable across every book published by Packt f Copy and paste, print and bookmark content f On demand and accessible via web browser Free Access for Packt account holders If you have an account with Packt at www.PacktPub.com, you can use this to access PacktLib today and view nine entirely free books. Simply use your login credentials for immediate access. www.it-ebooks.info www.it-ebooks.info www.it-ebooks.info To Shwetha and Tanmay, you fill my life with joy and wonder. www.it-ebooks.info www.it-ebooks.info Table of Contents Preface 1 Chapter 1: Get Rolling 7 Introduction 7 Writing your first jQuery Mobile application 9 Using JS Bin to create a simple application 12 Chapter 2: Pages and Dialogs 17 Introduction 17 Writing a single-page template application 18 Writing a multi-page template application 22 Prefetching pages for faster navigation 25 Using the DOM cache to improve performance 29 Custom styling a dialog 32 Using CSS to create a bouncing page transition 36 Using JS to create a slide and fade page transition 40 Using data-url to handle the login page navigation 44 Using History API to create a custom error pop up 48 Chapter 3: Toolbars 55 Introduction 55 Using fullscreen fixed toolbars 55 Using persistent navbars in toolbars 59 Customizing the header with multiple buttons 64 Adding a customized round button to the header 66 Adding an image to the header 69 Adding
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