Re: [Flashcoders] Garbage Collection difficulty
quick trick:
http://blogs.eyepartner.com/adrian/flex/flex-tip-6-garbage-collection-in-flex/
On Thu, Jan 29, 2009 at 6:41 AM, Sander Schuurman
sander.schuur...@oswaldandruby.com wrote:
Thnx! ran a few tests on a server; and indeed my code is doing great, and
the GC occurs when some more memory is needed... thnx again...
I think the concept of this GC is key in AS3 development
-Original Message-
From: flashcoders-boun...@chattyfig.figleaf.com [mailto:
flashcoders-boun...@chattyfig.figleaf.com] On Behalf Of Nate Beck
Sent: Wednesday, 28 January 2009 17:34
To: Flash Coders List
Subject: Re: [Flashcoders] Garbage Collection difficulty
Ah yes... I knew I read it somewhere... It's in that Grant Skinner article.
*Deferred GC and Indeterminacy*
A *very* important thing to understand about the Garbage Collector in FP9
is
that it's operations are deferred. Your objects will not be removed
immediately when all active references are deleted, instead they will be
removed at some indeterminate time in the future (from a developer
standpoint). The GC uses a set of heuristics that look at RAM allocation
and
the size of the memory stack (among other things) to determine when to run.
As a developer, you must accept that fact that you will have no way of
knowing when (or even if) your inactive objects will get deallocated. You
must also be aware that inactive objects will continue to execute
indefinitely (until the GC deallocates it), so code will keep running (ex.
enterFrames), sounds will keep playing, loads will keep happening, events
will keep firing, etc.
It's very important to remember that you have no control over when your
objects will be deallocated, so you must make them as inert as possible
when
you are finished with them. Strategies to manage this will be the focus for
a future article.
On Wed, Jan 28, 2009 at 8:31 AM, Nate Beck n...@tldstudio.com wrote:
It was my understanding that Garbage Collection doesn't always occur
right
away. When you have orphaned objects sitting on the heap, they are *
eligible* for garbage collection. That doesn't mean they will be removed
from memory right away. Especially if you're testing for JUST that to
happen. Usually GC occurs when more memory is needed.
Someone else could probably speak to this topic much more intelligently
than me.. but that was my understanding of how GC in general works.
Cheers
On Tue, Jan 27, 2009 at 6:04 AM, Sander Schuurman
sander.schuur...@oswaldandruby.com wrote:
Thnx for the links... tried some, but still with no success... I now
have
the following:
public class Image extends MovieClip
{
private var _thumbLoader:Loader;
private var _largeLoader:Loader;
private var _thumb:Bitmap;
private var _large:Bitmap;
public function loadThumb() :void
{
_thumbLoader = new Loader();
_thumbLoader.contentLoaderInfo.addEventListener(Event.COMPLETE,
thumbLoaded, false, 0, true);
_thumbLoader.contentLoaderInfo.addEventListener(IOErrorEvent.IO_ERROR,
errorOccured, false, 0, true);
_thumbLoader.load(new URLRequest(_tu));
}
private function thumbLoaded( e :Event ) :void
{
_thumb = Bitmap(e.currentTarget.content);
_thumb.smoothing = true;
addChild(_thumb);
_thumbLoader.contentLoaderInfo.removeEventListener(Event.COMPLETE,
thumbLoaded);
_thumbLoader.contentLoaderInfo.removeEventListener(IOErrorEvent.IO_ERROR,
errorOccured);
_thumbLoader = null;
dispatchEvent(new Event(Image.IMG_LOADED));
}
public function loadLarge() :void
{
_largeLoader = new Loader();
_largeLoader.contentLoaderInfo.addEventListener(Event.COMPLETE,
largeLoaded, false, 0, true);
_largeLoader.contentLoaderInfo.addEventListener(IOErrorEvent.IO_ERROR,
errorOccured, false, 0, true);
_largeLoader.load(new URLRequest(_lu));
}
private function largeLoaded( e :Event ) :void
{
_large = e.currentTarget.content;
_large.smoothing = true;
addChild(_large);
_largeLoader.contentLoaderInfo.removeEventListener(Event.COMPLETE,
largeLoaded);
_largeLoader.contentLoaderInfo.removeEventListener(IOErrorEvent.IO_ERROR,
errorOccured);
//_largeLoader.content.dispose();
_largeLoader = null;
dispatchEvent(new Event(Image.IMG_LOADED));
}
public function disposeLarge() :void
{
if (_large)
{
removeChild(_large);
_large.bitmapData.dispose();
_large = null;
}
}
public function dispose() :void
{
disposeLarge();
removeChild(_thumb);
_thumb.bitmapData.dispose();
_thumb = null
}
}
Anyone some tips? The large bitmap stays in memory...
-Original Message-
From: flashcoders-boun...@chattyfig.figleaf.com [mailto:
flashcoders-boun...@chattyfig.figleaf.com
RE: [Flashcoders] Garbage Collection difficulty
Thnx! ran a few tests on a server; and indeed my code is doing great, and the
GC occurs when some more memory is needed... thnx again...
I think the concept of this GC is key in AS3 development
-Original Message-
From: flashcoders-boun...@chattyfig.figleaf.com
[mailto:flashcoders-boun...@chattyfig.figleaf.com] On Behalf Of Nate Beck
Sent: Wednesday, 28 January 2009 17:34
To: Flash Coders List
Subject: Re: [Flashcoders] Garbage Collection difficulty
Ah yes... I knew I read it somewhere... It's in that Grant Skinner article.
*Deferred GC and Indeterminacy*
A *very* important thing to understand about the Garbage Collector in FP9 is
that it's operations are deferred. Your objects will not be removed
immediately when all active references are deleted, instead they will be
removed at some indeterminate time in the future (from a developer
standpoint). The GC uses a set of heuristics that look at RAM allocation and
the size of the memory stack (among other things) to determine when to run.
As a developer, you must accept that fact that you will have no way of
knowing when (or even if) your inactive objects will get deallocated. You
must also be aware that inactive objects will continue to execute
indefinitely (until the GC deallocates it), so code will keep running (ex.
enterFrames), sounds will keep playing, loads will keep happening, events
will keep firing, etc.
It's very important to remember that you have no control over when your
objects will be deallocated, so you must make them as inert as possible when
you are finished with them. Strategies to manage this will be the focus for
a future article.
On Wed, Jan 28, 2009 at 8:31 AM, Nate Beck n...@tldstudio.com wrote:
It was my understanding that Garbage Collection doesn't always occur right
away. When you have orphaned objects sitting on the heap, they are *
eligible* for garbage collection. That doesn't mean they will be removed
from memory right away. Especially if you're testing for JUST that to
happen. Usually GC occurs when more memory is needed.
Someone else could probably speak to this topic much more intelligently
than me.. but that was my understanding of how GC in general works.
Cheers
On Tue, Jan 27, 2009 at 6:04 AM, Sander Schuurman
sander.schuur...@oswaldandruby.com wrote:
Thnx for the links... tried some, but still with no success... I now have
the following:
public class Image extends MovieClip
{
private var _thumbLoader:Loader;
private var _largeLoader:Loader;
private var _thumb:Bitmap;
private var _large:Bitmap;
public function loadThumb() :void
{
_thumbLoader = new Loader();
_thumbLoader.contentLoaderInfo.addEventListener(Event.COMPLETE,
thumbLoaded, false, 0, true);
_thumbLoader.contentLoaderInfo.addEventListener(IOErrorEvent.IO_ERROR,
errorOccured, false, 0, true);
_thumbLoader.load(new URLRequest(_tu));
}
private function thumbLoaded( e :Event ) :void
{
_thumb = Bitmap(e.currentTarget.content);
_thumb.smoothing = true;
addChild(_thumb);
_thumbLoader.contentLoaderInfo.removeEventListener(Event.COMPLETE,
thumbLoaded);
_thumbLoader.contentLoaderInfo.removeEventListener(IOErrorEvent.IO_ERROR,
errorOccured);
_thumbLoader = null;
dispatchEvent(new Event(Image.IMG_LOADED));
}
public function loadLarge() :void
{
_largeLoader = new Loader();
_largeLoader.contentLoaderInfo.addEventListener(Event.COMPLETE,
largeLoaded, false, 0, true);
_largeLoader.contentLoaderInfo.addEventListener(IOErrorEvent.IO_ERROR,
errorOccured, false, 0, true);
_largeLoader.load(new URLRequest(_lu));
}
private function largeLoaded( e :Event ) :void
{
_large = e.currentTarget.content;
_large.smoothing = true;
addChild(_large);
_largeLoader.contentLoaderInfo.removeEventListener(Event.COMPLETE,
largeLoaded);
_largeLoader.contentLoaderInfo.removeEventListener(IOErrorEvent.IO_ERROR,
errorOccured);
//_largeLoader.content.dispose();
_largeLoader = null;
dispatchEvent(new Event(Image.IMG_LOADED));
}
public function disposeLarge() :void
{
if (_large)
{
removeChild(_large);
_large.bitmapData.dispose();
_large = null;
}
}
public function dispose() :void
{
disposeLarge();
removeChild(_thumb);
_thumb.bitmapData.dispose();
_thumb = null
}
}
Anyone some tips? The large bitmap stays in memory...
-Original Message-
From: flashcoders-boun...@chattyfig.figleaf.com [mailto:
flashcoders-boun...@chattyfig.figleaf.com] On Behalf Of Glen Pike
Sent: Wednesday, 21 January 2009 21:18
To: Flash Coders List
Subject: Re: [Flashcoders] Garbage Collection difficulty
Hi,
I think if you use it locally, you still have to dispose of it:
http://www.bartclaessens.com/tag/memory-management/
http://labs.bigspaceship.com/2007/02/28/flash
Re: [Flashcoders] Garbage Collection difficulty
Ah yes... I knew I read it somewhere... It's in that Grant Skinner article.
*Deferred GC and Indeterminacy*
A *very* important thing to understand about the Garbage Collector in FP9 is
that it's operations are deferred. Your objects will not be removed
immediately when all active references are deleted, instead they will be
removed at some indeterminate time in the future (from a developer
standpoint). The GC uses a set of heuristics that look at RAM allocation and
the size of the memory stack (among other things) to determine when to run.
As a developer, you must accept that fact that you will have no way of
knowing when (or even if) your inactive objects will get deallocated. You
must also be aware that inactive objects will continue to execute
indefinitely (until the GC deallocates it), so code will keep running (ex.
enterFrames), sounds will keep playing, loads will keep happening, events
will keep firing, etc.
It's very important to remember that you have no control over when your
objects will be deallocated, so you must make them as inert as possible when
you are finished with them. Strategies to manage this will be the focus for
a future article.
On Wed, Jan 28, 2009 at 8:31 AM, Nate Beck n...@tldstudio.com wrote:
It was my understanding that Garbage Collection doesn't always occur right
away. When you have orphaned objects sitting on the heap, they are *
eligible* for garbage collection. That doesn't mean they will be removed
from memory right away. Especially if you're testing for JUST that to
happen. Usually GC occurs when more memory is needed.
Someone else could probably speak to this topic much more intelligently
than me.. but that was my understanding of how GC in general works.
Cheers
On Tue, Jan 27, 2009 at 6:04 AM, Sander Schuurman
sander.schuur...@oswaldandruby.com wrote:
Thnx for the links... tried some, but still with no success... I now have
the following:
public class Image extends MovieClip
{
private var _thumbLoader:Loader;
private var _largeLoader:Loader;
private var _thumb:Bitmap;
private var _large:Bitmap;
public function loadThumb() :void
{
_thumbLoader = new Loader();
_thumbLoader.contentLoaderInfo.addEventListener(Event.COMPLETE,
thumbLoaded, false, 0, true);
_thumbLoader.contentLoaderInfo.addEventListener(IOErrorEvent.IO_ERROR,
errorOccured, false, 0, true);
_thumbLoader.load(new URLRequest(_tu));
}
private function thumbLoaded( e :Event ) :void
{
_thumb = Bitmap(e.currentTarget.content);
_thumb.smoothing = true;
addChild(_thumb);
_thumbLoader.contentLoaderInfo.removeEventListener(Event.COMPLETE,
thumbLoaded);
_thumbLoader.contentLoaderInfo.removeEventListener(IOErrorEvent.IO_ERROR,
errorOccured);
_thumbLoader = null;
dispatchEvent(new Event(Image.IMG_LOADED));
}
public function loadLarge() :void
{
_largeLoader = new Loader();
_largeLoader.contentLoaderInfo.addEventListener(Event.COMPLETE,
largeLoaded, false, 0, true);
_largeLoader.contentLoaderInfo.addEventListener(IOErrorEvent.IO_ERROR,
errorOccured, false, 0, true);
_largeLoader.load(new URLRequest(_lu));
}
private function largeLoaded( e :Event ) :void
{
_large = e.currentTarget.content;
_large.smoothing = true;
addChild(_large);
_largeLoader.contentLoaderInfo.removeEventListener(Event.COMPLETE,
largeLoaded);
_largeLoader.contentLoaderInfo.removeEventListener(IOErrorEvent.IO_ERROR,
errorOccured);
//_largeLoader.content.dispose();
_largeLoader = null;
dispatchEvent(new Event(Image.IMG_LOADED));
}
public function disposeLarge() :void
{
if (_large)
{
removeChild(_large);
_large.bitmapData.dispose();
_large = null;
}
}
public function dispose() :void
{
disposeLarge();
removeChild(_thumb);
_thumb.bitmapData.dispose();
_thumb = null
}
}
Anyone some tips? The large bitmap stays in memory...
-Original Message-
From: flashcoders-boun...@chattyfig.figleaf.com [mailto:
flashcoders-boun...@chattyfig.figleaf.com] On Behalf Of Glen Pike
Sent: Wednesday, 21 January 2009 21:18
To: Flash Coders List
Subject: Re: [Flashcoders] Garbage Collection difficulty
Hi,
I think if you use it locally, you still have to dispose of it:
http://www.bartclaessens.com/tag/memory-management/
http://labs.bigspaceship.com/2007/02/28/flash-performance-tips-part-ii/
http://www.gskinner.com/blog/archives/2006/06/as3_resource_ma.html
Search for dispose in some of these - also, one of the comments in
Grant's article mentions testing in the IDE vs testing in the browser
gives different results for loaded images.
HTH
Glen
Sander Schuurman wrote:
That's a local variable right? Doesn't it happen automatic?
I must concentrate on the _large Sprite, isn't it?
-Original
Re: [Flashcoders] Garbage Collection difficulty
It was my understanding that Garbage Collection doesn't always occur right
away. When you have orphaned objects sitting on the heap, they are *
eligible* for garbage collection. That doesn't mean they will be removed
from memory right away. Especially if you're testing for JUST that to
happen. Usually GC occurs when more memory is needed.
Someone else could probably speak to this topic much more intelligently than
me.. but that was my understanding of how GC in general works.
Cheers
On Tue, Jan 27, 2009 at 6:04 AM, Sander Schuurman
sander.schuur...@oswaldandruby.com wrote:
Thnx for the links... tried some, but still with no success... I now have
the following:
public class Image extends MovieClip
{
private var _thumbLoader:Loader;
private var _largeLoader:Loader;
private var _thumb:Bitmap;
private var _large:Bitmap;
public function loadThumb() :void
{
_thumbLoader = new Loader();
_thumbLoader.contentLoaderInfo.addEventListener(Event.COMPLETE,
thumbLoaded, false, 0, true);
_thumbLoader.contentLoaderInfo.addEventListener(IOErrorEvent.IO_ERROR,
errorOccured, false, 0, true);
_thumbLoader.load(new URLRequest(_tu));
}
private function thumbLoaded( e :Event ) :void
{
_thumb = Bitmap(e.currentTarget.content);
_thumb.smoothing = true;
addChild(_thumb);
_thumbLoader.contentLoaderInfo.removeEventListener(Event.COMPLETE,
thumbLoaded);
_thumbLoader.contentLoaderInfo.removeEventListener(IOErrorEvent.IO_ERROR,
errorOccured);
_thumbLoader = null;
dispatchEvent(new Event(Image.IMG_LOADED));
}
public function loadLarge() :void
{
_largeLoader = new Loader();
_largeLoader.contentLoaderInfo.addEventListener(Event.COMPLETE,
largeLoaded, false, 0, true);
_largeLoader.contentLoaderInfo.addEventListener(IOErrorEvent.IO_ERROR,
errorOccured, false, 0, true);
_largeLoader.load(new URLRequest(_lu));
}
private function largeLoaded( e :Event ) :void
{
_large = e.currentTarget.content;
_large.smoothing = true;
addChild(_large);
_largeLoader.contentLoaderInfo.removeEventListener(Event.COMPLETE,
largeLoaded);
_largeLoader.contentLoaderInfo.removeEventListener(IOErrorEvent.IO_ERROR,
errorOccured);
//_largeLoader.content.dispose();
_largeLoader = null;
dispatchEvent(new Event(Image.IMG_LOADED));
}
public function disposeLarge() :void
{
if (_large)
{
removeChild(_large);
_large.bitmapData.dispose();
_large = null;
}
}
public function dispose() :void
{
disposeLarge();
removeChild(_thumb);
_thumb.bitmapData.dispose();
_thumb = null
}
}
Anyone some tips? The large bitmap stays in memory...
-Original Message-
From: flashcoders-boun...@chattyfig.figleaf.com [mailto:
flashcoders-boun...@chattyfig.figleaf.com] On Behalf Of Glen Pike
Sent: Wednesday, 21 January 2009 21:18
To: Flash Coders List
Subject: Re: [Flashcoders] Garbage Collection difficulty
Hi,
I think if you use it locally, you still have to dispose of it:
http://www.bartclaessens.com/tag/memory-management/
http://labs.bigspaceship.com/2007/02/28/flash-performance-tips-part-ii/
http://www.gskinner.com/blog/archives/2006/06/as3_resource_ma.html
Search for dispose in some of these - also, one of the comments in
Grant's article mentions testing in the IDE vs testing in the browser
gives different results for loaded images.
HTH
Glen
Sander Schuurman wrote:
That's a local variable right? Doesn't it happen automatic?
I must concentrate on the _large Sprite, isn't it?
-Original Message-
From: flashcoders-boun...@chattyfig.figleaf.com [mailto:
flashcoders-boun...@chattyfig.figleaf.com] On Behalf Of Glen Pike
Sent: Wednesday, 21 January 2009 12:20
To: Flash Coders List
Subject: Re: [Flashcoders] Garbage Collection difficulty
Hi,
Do you have to destroy the Bitmap you create in the largeLoaded
function???
Glen
Sander Schuurman wrote:
Hi cool list,
I'm struggling with my Image class. It's supposed to load and unload
different sized images dynamicly; but I can't seem to get it to work
properly. The loading works fine, but the unloading not for the full 100%.
It visually unloads the image, but it remains in the memory. I have tried
several different things; I'm a bit stuck now.
Here is a stripped class:
public class Image extends MovieClip
{
...
private var _largeLoader:Loader;
private var _large:Sprite;
...
public function Image( thumbUrl :String,
normalUrl
:String,
largeUrl :String )
{
_tu = thumbUrl;
_nu = normalUrl;
_lu = largeUrl
RE: [Flashcoders] Garbage Collection difficulty
Thnx for the links... tried some, but still with no success... I now have the
following:
public class Image extends MovieClip
{
private var _thumbLoader:Loader;
private var _largeLoader:Loader;
private var _thumb:Bitmap;
private var _large:Bitmap;
public function loadThumb() :void
{
_thumbLoader = new Loader();
_thumbLoader.contentLoaderInfo.addEventListener(Event.COMPLETE,
thumbLoaded, false, 0, true);
_thumbLoader.contentLoaderInfo.addEventListener(IOErrorEvent.IO_ERROR,
errorOccured, false, 0, true);
_thumbLoader.load(new URLRequest(_tu));
}
private function thumbLoaded( e :Event ) :void
{
_thumb = Bitmap(e.currentTarget.content);
_thumb.smoothing = true;
addChild(_thumb);
_thumbLoader.contentLoaderInfo.removeEventListener(Event.COMPLETE,
thumbLoaded);
_thumbLoader.contentLoaderInfo.removeEventListener(IOErrorEvent.IO_ERROR,
errorOccured);
_thumbLoader = null;
dispatchEvent(new Event(Image.IMG_LOADED));
}
public function loadLarge() :void
{
_largeLoader = new Loader();
_largeLoader.contentLoaderInfo.addEventListener(Event.COMPLETE,
largeLoaded, false, 0, true);
_largeLoader.contentLoaderInfo.addEventListener(IOErrorEvent.IO_ERROR,
errorOccured, false, 0, true);
_largeLoader.load(new URLRequest(_lu));
}
private function largeLoaded( e :Event ) :void
{
_large = e.currentTarget.content;
_large.smoothing = true;
addChild(_large);
_largeLoader.contentLoaderInfo.removeEventListener(Event.COMPLETE,
largeLoaded);
_largeLoader.contentLoaderInfo.removeEventListener(IOErrorEvent.IO_ERROR,
errorOccured);
//_largeLoader.content.dispose();
_largeLoader = null;
dispatchEvent(new Event(Image.IMG_LOADED));
}
public function disposeLarge() :void
{
if (_large)
{
removeChild(_large);
_large.bitmapData.dispose();
_large = null;
}
}
public function dispose() :void
{
disposeLarge();
removeChild(_thumb);
_thumb.bitmapData.dispose();
_thumb = null
}
}
Anyone some tips? The large bitmap stays in memory...
-Original Message-
From: flashcoders-boun...@chattyfig.figleaf.com
[mailto:flashcoders-boun...@chattyfig.figleaf.com] On Behalf Of Glen Pike
Sent: Wednesday, 21 January 2009 21:18
To: Flash Coders List
Subject: Re: [Flashcoders] Garbage Collection difficulty
Hi,
I think if you use it locally, you still have to dispose of it:
http://www.bartclaessens.com/tag/memory-management/
http://labs.bigspaceship.com/2007/02/28/flash-performance-tips-part-ii/
http://www.gskinner.com/blog/archives/2006/06/as3_resource_ma.html
Search for dispose in some of these - also, one of the comments in
Grant's article mentions testing in the IDE vs testing in the browser
gives different results for loaded images.
HTH
Glen
Sander Schuurman wrote:
That's a local variable right? Doesn't it happen automatic?
I must concentrate on the _large Sprite, isn't it?
-Original Message-
From: flashcoders-boun...@chattyfig.figleaf.com
[mailto:flashcoders-boun...@chattyfig.figleaf.com] On Behalf Of Glen Pike
Sent: Wednesday, 21 January 2009 12:20
To: Flash Coders List
Subject: Re: [Flashcoders] Garbage Collection difficulty
Hi,
Do you have to destroy the Bitmap you create in the largeLoaded
function???
Glen
Sander Schuurman wrote:
Hi cool list,
I'm struggling with my Image class. It's supposed to load and unload
different sized images dynamicly; but I can't seem to get it to work
properly. The loading works fine, but the unloading not for the full 100%.
It visually unloads the image, but it remains in the memory. I have tried
several different things; I'm a bit stuck now.
Here is a stripped class:
public class Image extends MovieClip
{
...
private var _largeLoader:Loader;
private var _large:Sprite;
...
public function Image( thumbUrl :String,
normalUrl :String,
largeUrl :String )
{
_tu = thumbUrl;
_nu = normalUrl;
_lu = largeUrl;
}
...
public function loadLarge() :void
{
_largeLoader = new Loader();
_largeLoader.contentLoaderInfo.addEventListener(Event.COMPLETE, largeLoaded,
false, 0, true
Re: [Flashcoders] Garbage Collection difficulty
Hi,
Do you have to destroy the Bitmap you create in the largeLoaded
function???
Glen
Sander Schuurman wrote:
Hi cool list,
I'm struggling with my Image class. It's supposed to load and unload different
sized images dynamicly; but I can't seem to get it to work properly. The
loading works fine, but the unloading not for the full 100%. It visually
unloads the image, but it remains in the memory. I have tried several different
things; I'm a bit stuck now.
Here is a stripped class:
public class Image extends MovieClip
{
...
private var _largeLoader:Loader;
private var _large:Sprite;
...
public function Image( thumbUrl :String,
normalUrl :String,
largeUrl :String )
{
_tu = thumbUrl;
_nu = normalUrl;
_lu = largeUrl;
}
...
public function loadLarge() :void
{
_largeLoader = new Loader();
_largeLoader.contentLoaderInfo.addEventListener(Event.COMPLETE, largeLoaded,
false, 0, true);
_largeLoader.contentLoaderInfo.addEventListener(IOErrorEvent.IO_ERROR,
errorOccured, false, 0, true);
_largeLoader.load(new URLRequest(_lu));
}
private function largeLoaded( e :Event ) :void
{
var b:Bitmap = Bitmap(largeLoader.content);
_largeLoader.contentLoaderInfo.removeEventListener(Event.COMPLETE, largeLoaded);
_largeLoader.contentLoaderInfo.removeEventListener(IOErrorEvent.IO_ERROR,
errorOccured);
_largeLoader = null;
_large = new Sprite();
_large.addChild(b);
addChild(_large);
dispatchEvent(new Event(Image.IMG_LOADED));
}
...
public function clear( full :Boolean = false ) :void
{
// clear normal img and large img
... ?
// tried things like:
//_normal.removeChildAt(0);
//_normal = null;
//removeChild(_normal);
//_large.removeChildAt(0);
//_large = null;
//removeChild(_large);
//delete(_normal.removeChildAt(0));
//delete(_large.removeChildAt(0));
// removes the images visually, but they won't get GC'ed
if (full)
{
// clear thumb and itself
}
}
}
Thanks in advance!
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RE: [Flashcoders] Garbage Collection difficulty
That's a local variable right? Doesn't it happen automatic?
I must concentrate on the _large Sprite, isn't it?
-Original Message-
From: flashcoders-boun...@chattyfig.figleaf.com
[mailto:flashcoders-boun...@chattyfig.figleaf.com] On Behalf Of Glen Pike
Sent: Wednesday, 21 January 2009 12:20
To: Flash Coders List
Subject: Re: [Flashcoders] Garbage Collection difficulty
Hi,
Do you have to destroy the Bitmap you create in the largeLoaded
function???
Glen
Sander Schuurman wrote:
Hi cool list,
I'm struggling with my Image class. It's supposed to load and unload
different sized images dynamicly; but I can't seem to get it to work
properly. The loading works fine, but the unloading not for the full 100%. It
visually unloads the image, but it remains in the memory. I have tried
several different things; I'm a bit stuck now.
Here is a stripped class:
public class Image extends MovieClip
{
...
private var _largeLoader:Loader;
private var _large:Sprite;
...
public function Image( thumbUrl :String,
normalUrl :String,
largeUrl :String )
{
_tu = thumbUrl;
_nu = normalUrl;
_lu = largeUrl;
}
...
public function loadLarge() :void
{
_largeLoader = new Loader();
_largeLoader.contentLoaderInfo.addEventListener(Event.COMPLETE, largeLoaded,
false, 0, true);
_largeLoader.contentLoaderInfo.addEventListener(IOErrorEvent.IO_ERROR,
errorOccured, false, 0, true);
_largeLoader.load(new URLRequest(_lu));
}
private function largeLoaded( e :Event ) :void
{
var b:Bitmap = Bitmap(largeLoader.content);
_largeLoader.contentLoaderInfo.removeEventListener(Event.COMPLETE,
largeLoaded);
_largeLoader.contentLoaderInfo.removeEventListener(IOErrorEvent.IO_ERROR,
errorOccured);
_largeLoader = null;
_large = new Sprite();
_large.addChild(b);
addChild(_large);
dispatchEvent(new Event(Image.IMG_LOADED));
}
...
public function clear( full :Boolean = false ) :void
{
// clear normal img and large img
... ?
// tried things like:
//_normal.removeChildAt(0);
//_normal = null;
//removeChild(_normal);
//_large.removeChildAt(0);
//_large = null;
//removeChild(_large);
//delete(_normal.removeChildAt(0));
//delete(_large.removeChildAt(0));
// removes the images visually, but they won't get
GC'ed
if (full)
{
// clear thumb and itself
}
}
}
Thanks in advance!
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Re: [Flashcoders] Garbage Collection difficulty
Hi,
I think if you use it locally, you still have to dispose of it:
http://www.bartclaessens.com/tag/memory-management/
http://labs.bigspaceship.com/2007/02/28/flash-performance-tips-part-ii/
http://www.gskinner.com/blog/archives/2006/06/as3_resource_ma.html
Search for dispose in some of these - also, one of the comments in
Grant's article mentions testing in the IDE vs testing in the browser
gives different results for loaded images.
HTH
Glen
Sander Schuurman wrote:
That's a local variable right? Doesn't it happen automatic?
I must concentrate on the _large Sprite, isn't it?
-Original Message-
From: flashcoders-boun...@chattyfig.figleaf.com
[mailto:flashcoders-boun...@chattyfig.figleaf.com] On Behalf Of Glen Pike
Sent: Wednesday, 21 January 2009 12:20
To: Flash Coders List
Subject: Re: [Flashcoders] Garbage Collection difficulty
Hi,
Do you have to destroy the Bitmap you create in the largeLoaded
function???
Glen
Sander Schuurman wrote:
Hi cool list,
I'm struggling with my Image class. It's supposed to load and unload different
sized images dynamicly; but I can't seem to get it to work properly. The
loading works fine, but the unloading not for the full 100%. It visually
unloads the image, but it remains in the memory. I have tried several different
things; I'm a bit stuck now.
Here is a stripped class:
public class Image extends MovieClip
{
...
private var _largeLoader:Loader;
private var _large:Sprite;
...
public function Image( thumbUrl :String,
normalUrl :String,
largeUrl :String )
{
_tu = thumbUrl;
_nu = normalUrl;
_lu = largeUrl;
}
...
public function loadLarge() :void
{
_largeLoader = new Loader();
_largeLoader.contentLoaderInfo.addEventListener(Event.COMPLETE, largeLoaded,
false, 0, true);
_largeLoader.contentLoaderInfo.addEventListener(IOErrorEvent.IO_ERROR,
errorOccured, false, 0, true);
_largeLoader.load(new URLRequest(_lu));
}
private function largeLoaded( e :Event ) :void
{
var b:Bitmap = Bitmap(largeLoader.content);
_largeLoader.contentLoaderInfo.removeEventListener(Event.COMPLETE, largeLoaded);
_largeLoader.contentLoaderInfo.removeEventListener(IOErrorEvent.IO_ERROR,
errorOccured);
_largeLoader = null;
_large = new Sprite();
_large.addChild(b);
addChild(_large);
dispatchEvent(new Event(Image.IMG_LOADED));
}
...
public function clear( full :Boolean = false ) :void
{
// clear normal img and large img
... ?
// tried things like:
//_normal.removeChildAt(0);
//_normal = null;
//removeChild(_normal);
//_large.removeChildAt(0);
//_large = null;
//removeChild(_large);
//delete(_normal.removeChildAt(0));
//delete(_large.removeChildAt(0));
// removes the images visually, but they won't get GC'ed
if (full)
{
// clear thumb and itself
}
}
}
Thanks in advance!
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--
Glen Pike
01326 218440
www.glenpike.co.uk http://www.glenpike.co.uk
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