June 2012
Intermediate to advanced
168 pages
3h 39m
English
Content preview from Mobile JavaScript Application DevelopmentBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 4. Sencha Touch
Of all the frameworks presented in this book, Sencha Touch is probably the most complex and daunting of all. It is an amazing piece of JavaScript code, providing application developers with a fertile playground ready to be explored.
This chapter will provide an introduction to Sencha Touch, and will later explore its characteristics by creating three small applications from scratch.
Note
At the time of this writing, the current stable version of Sencha Touch is version 2.0.1.
Introduction and History
Sencha Touch is a fully fledged UI framework, in the same tradition as Cocoa Touch, Swing, or .NET. It is completely written in JavaScript, and it is a direct spin-off of the famous Ext.js framework, initially created in 2006 by Jack Slocum as an extension (hence the name) of the YUI framework from Yahoo!.
Sencha Touch provides a set of very complex widgets, reacting to the most complex gestures, geared towards the creation of extremely complex web applications. In this sense, Sencha Touch (and Ext.js) can be compared to Cappuccino, SproutCore, or other large-scale, enterprise-y frameworks.
Characteristics
And enterprise-y it is. Or at least that is how Sencha (the company behind Sencha Touch) is aggressively marketing it. Frameworks falling into this category usually have the following characteristics:
(Relatively) Large code footprint
Complex object hierarchy
Long list of widgets, with complex customizations, ready to be used out-of-the-box
Opinionated approaches to common ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.