Book Image

Sencha Touch Cookbook

By : Ajit Kumar
Book Image

Sencha Touch Cookbook

By: Ajit Kumar

Overview of this book

Sencha touch is a versatile HTML5-based framework for developing mobile web apps that look and feel native on touch screen devices, and with it you can write your code once and deploy it to both iOS and Android saving you both time and money. The Sencha touch cookbook has a comprehensive selection of recipes covering everything from installation right through to HTML5 geo location. The Sencha Touch Cookbook really is your one stop resource for cross platform HTML5 application development. It covers the basics such as setting up an iOS and Android development environment right through to much more complex development issues such as touch gestures, animation, rich media and geo location. Every recipe is practically focused. Maximum action. Minimum theory.
Table of Contents (17 chapters)
Sencha Touch Cookbook
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Handling Scroll Events


When the scrolling is enabled on a component in Sencha Touch, the framework fires the scroll related events that we use to scroll the content. This recipe lists out the scroll related events and shows how to handle them.

Getting ready

Make sure that you have set up your development environment by following the recipes outlined in Chapter 1.

How to do it...

Carry out the following steps:

  1. Add the following handler functions inside the Ext.onReady in ch09_01.js:

        this.handleScrollEvent = function(e) {
          console.log('scroll');
        }
    
        this.handleScrollstartEvent = function(e) {
          console.log('scrollstart');
        }
        
        this.handleScrollendEvent = function(e) {
          console.log('scrollend');
        }
  2. Set scroll: 'vertical' property to the panel initialization:

      var pnl = new Ext.Panel({
        id:'main-panel',
          fullscreen: true,
        scroll: 'vertical',
          monitorOrientation: true,
  3. Add the following code after the component reference is retrieved using the Ext...