PhoneGap 1.4 wrapping Sencha Touch 2.X - What about performance?

Question

I\'m building a multiplatform tablet app wrapping it with Phonegap 1.4 using just its webview, then I work my magic with the Sencha Touch 2 framework. By multiplatform I mea

Answer 1

I´m not a phoneGap or Sencha developer whatsoever, but i try to keep up with what concerns browsers performance and evolution.

You got so many abstraction layers (sencha touch, phonegap, android, webkit, fffuuu) for your app that it may be very hard to understand where performance issues are.

As far as i get phonegap design, it does not embed any webkit implementation, what it does (on android) is to make use of android.webkit.WebView. I found many people complain about how webview got a terrible performance over android webkit browser itself. it may be hard to improve here, since you are using phonegap, and messing up with android sdk may make you loss portability, if thats important to you.

What i see as a performance problem on phonegap is that depends not only on the hardware, but also on the browser implementation the OS have.

If you want to tune performance, then you may make improves in your js/css code. This can be simple as caching DOM nodes in js (DOM queries are slow), keep the DOM minimal or it may be more hard, because since phonegap targets diferent browser engines implementations, you may need to target you code to those browsers in order to improve performance.