Ya, I was joking about the grudge -- just some nice frustrated learning
experience feelings! I don't know why but I've always had the impression that
item renderers slowed down the list/datagrid display, so it's good to see
people telling me I'm wrong.
I'll do the custom renderer on my 2nd pass of finishing up this application.
With this experience I've also found that using binded x/y values
'y="{something.x + something.y}"' really really slows things down as well.
Changing that code I was able to get down to around 1000ms. Not what I wanted,
but more acceptable forsure!!
I can see where renderers would make the code much more managable, so it will
always be in the back of my mind as well.
I appreciate all the feedback and pointers...
Thanks much,
Jason
----- Original Message -----
From: Michael Schmalle
To: flexcoders@yahoogroups.com
Sent: Tuesday, September 23, 2008 6:26 PM
Subject: Re: [flexcoders] Speeding up draw time with nested VBoxes
> plus I have a grudge against vboxes now :P
It's not the gun that kills but the finger that pulled the trigger... ;-)
VBoxs serve their purposes and perform great when they are used 'correctly'.
I know that sounds bad but I don't mean it like that.
There are while(loops) in the layout code that acts like a circular saw, when
it's grinding it's taking A LOT of energy from the Player, the large the wood,
the more power it needs.
The plus side is, since the algorithms are so good in it, with controls that
have limited children and layout logic, there is a lot you can do with boxes
(stretching).
But Tracy is totally right, item renderers are what you need. I think this
will change in the future, the way developers look at 'renderers'. Renderers
abstract and decouple your repetitive layout and child creation code from the
main component controller. You can then at any time in the future optimize a
renderer of any kind easily and efficiently.
Mike
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