rchives/2006/07/as3_weakly_refe.html
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> - Original Message -
> From: "EECOLOR" <[EMAIL PROTECTED]>
> To: "Flash Coders List"
> Sent: Friday, March 14, 2008 1:18 PM
> Subject: Re: [Flashcoders] Passing vars with the the timer and
- Original Message -
From: "EECOLOR" <[EMAIL PROTECTED]>
To: "Flash Coders List"
Sent: Friday, March 14, 2008 1:18 PM
Subject: Re: [Flashcoders] Passing vars with the the timer and events
I have modified my test classes slightly. And found that when debugging this
mo
I have modified my test classes slightly. And found that when debugging this
movie in Flex Builder 3, the garbage collection was triggered when I moved
my mouse within the Flash movie.
I suspect that the method behind the screens that runs the garbage collector
is quite complex. I think that in mo
Hey there,
I was totally shocked this morning. If what you were saying was true it
would mean that if you created a class with a listener to itself and
instantiated it, it would never be garbage collected.
So I did some extra tests.
1. Your example with a weak listener (same result)
2. Trying to
Oh man, thank you for this example!
This totally blows me away. I am sorry I was so persistent. You are correct.
I will have to check all my applications now, hehe.
This also means that all my earlier arguments are incorrect and that the use
of Delegate is indeed very dangerous.
Thank you for sh
> There is no such thing as "a reference to be created invisibly within the
> event system".
I disagree. Try this test code:
package {
import flash.events.Event;
import flash.display.Sprite;
import flash.utils.getTimer;
public class TestClass ex
>If you add a normal event listener to a child,
>and then remove that child, the child is _not_ garbage collected.
>Objects are only garbage collected when all references to the object
>are removed. Adding a normal event listener causes a reference to be
>created invisibly within the event system.
> The common use for weak event
> listeners is when adding listeners to the stage
I disagree. Weak event listeners should be used in nearly all cases.
> In most cases there is actually no real benefit of creating weak event
> listeners. In most cases parents add
> listeners to their children
>That's a dangerous practice.
I do not completely agree.
>It prevents you from using weak event listeners
Correct.
The common use for weak event
listeners is when adding listeners to the stage: the stage is allways
present and adding normal listeners to it will insure that the
listener will per
Thanks Jason,
That is how I approached in the end. I was just getting stuck while
dispatching custom events from the extended Timer class. but I think all is
solved now.
On 3/12/08, Merrill, Jason <[EMAIL PROTECTED]> wrote:
>
> Haven't followed this thread, and don't even know what the original
Haven't followed this thread, and don't even know what the original
question is other than the thread title, but I'll just jump in and add,
I don't think attaching variables to events is a good idea anymore, I
used to do it in AS2 all the time with Delegate, but now with the new
AS2 event model, I
I was a little bit concerned about the
Delegate approach and I was able to figure out that extending the Timer
class and adding a property to to the new class everything worked fine.
My issue was that once the handler the
extended time
That's a dangerous practice. It prevents you from using weak event
listeners -- because the only reference to your delegate function
object is the event listener itself, a weakly-referenced listener will
be garbage collected. Now have to manually remove your listener to
make sure your object is gar
If we ever he need to pass extra arguments to the handler we use a delegate
class to pass them. Usage:
obj.addEventListener(Event.TYPE, Delegate.create(this, _handler, arg1,
arg2));
private function _handler(e:Event, arg1:Object, arg2:Object):void
{
};
I added our delegate class as an attachmen
Hi Bob,
Thanks for the comment, that is the route that started working on after
posting the question and the only issue I am having is dispatching the
custom event when the timer has been reached, I did a soft search for
samples of extending the Timer Class with custom TimerEvents but wasnt able
t
Hi Helmut,
One option is extending Timer such that it dispatches your custom
SoundTimerEvent rather than the built in TimerEvent.
Another option, if _sound is a class var, would be to have your
timeEventHandler dispatch the SoundTimerEvent.
hth,
Bob
Helmut Granda wrote:
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