Current Apache Flex CSS performance?

[slmille4 <sl...@gmail.com>]

Back in 2010, apparently the CSS performance in Flex wasn't that great,
especially for complex stuff like descendent selectors:
http://jan.varwig.org/archive/flex-4-performance-tips
 
How is Apache Flex performance with CSS doing at the moment? Do the caveats
listed here (problems with infinite loops, descendent selectors) still
apply? If I'm working on a mobile (iPad) project, would using CSS be
recommended?
 
Cheers,
Steve M.



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RE: Current Apache Flex CSS performance?

[Maurice Amsellem <ma...@systar.com>]

>If I'm working on a mobile (iPad) project, would using CSS be recommended?

You can't do otherwise:  CSS are anyway used in the core Mobile Flex components, and many of them use descendant CSS. 
(few examples from mobile theme defaults.css):
 ActionBar ButtonBase
ActionBar Group#navigationGroup Button
ActionBar Group#navigationGroup Button.emphasized
ActionBar.beveled Group#actionGroup Button.emphasized
Callout ViewNavigator ActionBar.beveled Group#navigationGroup Button
Etc...

Moreover, mobile Flex uses the new @media CSS which allows to use different CSS settings for different DPI / OS.


Now, if you mean "not using CSS at all in your own code":
There are 100+ CSS entries in the mobile theme, plus the ones in the other SWC projects if you are using them (Charts, etc...) .

So unless you are using dozens of CSS in your own code,  I am not sure it will really make a difference,  and you will certainly lose in maintenability/flexibility if you hardcode everything.

You can use Adobe Scout to measure the performance gain of using/ not using CSS on your project.  

Regards,

Maurice 

-----Message d'origine-----
De : slmille4 [mailto:slmille4@gmail.com] 
Envoyé : samedi 2 novembre 2013 21:08
À : users@flex.apache.org
Objet : Current Apache Flex CSS performance?

Back in 2010, apparently the CSS performance in Flex wasn't that great, especially for complex stuff like descendent selectors:
http://jan.varwig.org/archive/flex-4-performance-tips
 
How is Apache Flex performance with CSS doing at the moment? Do the caveats listed here (problems with infinite loops, descendent selectors) still apply? If I'm working on a mobile (iPad) project, would using CSS be recommended?
 
Cheers,
Steve M.



--
View this message in context: http://apache-flex-users.2333346.n4.nabble.com/Current-Apache-Flex-CSS-performance-tp3492.html
Sent from the Apache Flex Users mailing list archive at Nabble.com.