Book Image

jQuery Mobile Cookbook

By : Chetan Jain
Book Image

jQuery Mobile Cookbook

By: Chetan Jain

Overview of this book

jQuery Mobile is an award winning, HTML5/CSS3 based open source cross-platform UI framework. It offers a very cool and highly customizable UX. It is built on the popular jQuery library and uses declarative coding making it easy to use and learn. It is the market leader today considering the numerous browsers and platforms that it supports."jQuery Mobile Cookbook" presents over a hundred recipes written in a simple and easy manner. You can quickly learn and start writing code immediately. Advanced topics such as using scripts to manipulate, customize, and extend the framework are also covered. These tips address your common everyday problems. The book is very handy for both beginner and experienced jQuery Mobile developers.You start by developing simple apps using various controls and learn to customize them. Later you explore using advanced aspects like configurations, events, and methods.Develop single and multi-page applications. Use caching to boost performance. Use custom transitions, icon sprites, styles, and themes. Learn advanced features like configurations, events, and methods. Explore future trends by using HTML5 new features and semantics with jQuery Mobile."jQuery Mobile Cookbook" is an easy read and is packed with practical tips and screenshots.
Table of Contents (19 chapters)
jQuery Mobile Cookbook
Credits
About the Author
Acknowledgement
About the Reviewers
www.PacktPub.com
Preface
Index

Using scroll events


When you scroll, the jQuery Mobile framework fires the scrollstart event. When you stop scrolling the scrollstop event is triggered. This recipe shows you how to use these two events.

Getting ready

Copy the full code of this recipe from the code/08/scroll sources folder. You can launch this code by using the URL http://localhost:8080/08/scroll/main.html

How to do it...

Carry out the following steps:

  1. Create main.html with the page content div styled with a large value for its height, so that the scroll bars appear:

    <div id="main" data-role="page" data-theme="e">
      <div data-role="header" data-theme="a" data-
      position="fixed">
        <h1>Scroll Events</h1>
      </div>    
      <div data-role="content">
        <div style="height: 1000px">Scroll now</div>
      </div>
    </div>
  2. Add the following script to the <head> section to handle the scroll events:

    $(window).bind("scrollstart", function(event) {
      $("h1").html("Scrolling now...