Hi all, this is my first post here, even I usually read the threads with
much interest. I've been following the discussion about the FP9 problem
regarding to memory use and removing loaded assets, which I find very
important since I work in a large project with hundreds of large loaded
assets.
I've been doing an experiment today with a simple movie. You can
download it from http://www.hamoid.com/RamTest.fla
If you run it in the IDE, it traces memory increase since the beginning,
and it is pretty stable (does increase very little).
BUT if you edit the MC found in the library called "Inside" and drag all
key frames from frame 3 to frame 1 and run the experiment again, the
used ram increases at a few Kb / sec. all the time. Is this something I
should worry about? We have lots of these assets loaded and if each uses
more and more ram...
I found out about this ram increase while trying to develop a small
class our designers could use to pause movieclips for a random amout of
time. You can see the code "new Pause(this, 1, 10);" commented at frames
1 and 12 of the MC "Inside". The source code for the Pause class is:
package {
import flash.display.*;
import flash.events.TimerEvent;
import flash.utils.Timer;
public class Pause {
private var pDisp:MovieClip;
public function Pause(tDisp:MovieClip, tMin:Number, tMax:Number) {
pDisp = tDisp;
pDisp.stop();
var tDiff:Number = tMax - tMin;
var tTimer:Timer = new Timer(1000 * (tMin + Math.random() *
tDiff), 1);
tTimer.addEventListener(TimerEvent.TIMER, onTimer);
tTimer.start();
}
private function onTimer(tEvent:TimerEvent):void {
pDisp.play();
pDisp = null;
}
}
}
Some questions: If I use "new Pause(this, 1, 10);" in a frame, without
storing it into a variable, it could be garbage collected right? Testing
this file alone works as expected, but maybe in a large project I should
do "var p:Pause = new Pause(this, 1, 10);" so it's not removed by
accident. But in this second case, aren't we piling lots of Pause
objects? Or are the old ones recycled automatically because no one
references them?
What happens to all the "new Timer"? Are they deleted for the same
reason? They only run 1 time, and are stored in a temporary variable...
I wish we could have a callback executed when an object is garbage
collected, then we could know what's going on, otherwise we don't know
if things get deleted or not (execept if we use the profiler in FB).
Thanks, Abe
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