Alex, Do you know if Class instances get GC'd? (as in instances of Class, not general objs) I've noticed Player likes to collect SWFs awfully quickly (even when there's *no* allocation), but I haven't done any experiments to verify the classes get collected as well (or not) yet though, but it might be weird if you're expecting a class to be around in order to getDefinitionForName() it later :)
-Josh On Sat, Sep 13, 2008 at 7:19 AM, Alex Harui <[EMAIL PROTECTED]> wrote: > The Flex Profiler will tell you if you have other stuff that isn't being > cleaned up. I posted on my blog some ways to use it. FP10 fixes many > issues with SWFs not unloading. A test using the release build on a > non-debugger player is the best way to see if you are getting > false-positives. > > > > *From:* flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] *On > Behalf Of *djepyon > *Sent:* Friday, September 12, 2008 12:11 PM > *To:* flexcoders@yahoogroups.com > > *Subject:* [flexcoders] Re: SWFLoader unloading, whats the trick? > > > > Ok, I went ahead and added some manual clean up to the swf's I was > loading using Event.UNLOAD. I'm basically setting values to null so > they become candidates for garbage collection. Regardless, each time I > load a file into SWFLoader the mem usage still jumps until the app > becomes sluggish and ultimately unresponsive. I noticed the following > bug (http://bugs.adobe.com/jira/browse/SDK-13097) and I'm assuming > that is the issue I'm having. > > As I workaround I'm loading a single swf into SWFLoader and then > having the loaded swf handle the loading of other external swf files > itself. The class for something like this is as such: > > package { > > import flash.display.MovieClip; > > import flash.display.Loader; > import flash.net.URLRequest; > > import flash.events.Event; > import flash.events.ProgressEvent; > > public class LoaderSWF extends MovieClip{ > > private var loader:Loader; > > public function LoaderSWF() : void { > > loader = new Loader(); > > addChild(loader); > > } > > public function loadSWF(path){ > > trace("loadSWF(", path, " )"); > > var r:URLRequest = new URLRequest(); > r.url = path; > > loader.contentLoaderInfo.addEventListener(ProgressEvent.PROGRESS, > progressHandler); > loader.load(r); > > } > > private function progressHandler(event:ProgressEvent) : void { > > trace("bytesLoaded=" + event.bytesLoaded + " bytesTotal=" + > event.bytesTotal); > > } > > } > > } > > --- In flexcoders@yahoogroups.com <flexcoders%40yahoogroups.com>, Alex > Harui <[EMAIL PROTECTED]> wrote: > > > > Each SWF really should stop its own audio and clean up. Trying to > clean up on a SWFs behalf is likely a maintenance issue. > > > > From: flexcoders@yahoogroups.com <flexcoders%40yahoogroups.com> [mailto: > flexcoders@yahoogroups.com <flexcoders%40yahoogroups.com>] > On Behalf Of djepyon > > Sent: Wednesday, September 10, 2008 8:01 AM > > To: flexcoders@yahoogroups.com <flexcoders%40yahoogroups.com> > > Subject: [flexcoders] Re: SWFLoader unloading, whats the trick? > > > > > > Alex thanks for the additional info. > > > > swfloader.content.stop() prior to setting a new source in this case > > managed to stop the next swf at the beginning once it loaded. Not sure > > why this happened. > > > > I did a bit of testing here and as far as I can tell when a > > MovieClip's loaderInfo dispatches an Event.UNLOAD the MovieClip itself > > has already been de-referenced. > > > > The timeline audio continues to play however. I've managed to fix this > > problem (although this seems a bit of a hack) by calling > > SoundMixer.stopAll() in the unload handler. I somehow doubt that this > > actually deletes the Sound objects that were created so my guess is > > that this could cause a big leak if many SWF's with timeline audio > > were being loaded over and over. Perhaps the same problem would > > persist even with SWF' with manually instantiated audio? > > > > Here's my quick fix. > > > > > MovieClip(event.target.content).loaderInfo.addEventListener(Event.UNLOAD, > > unloadHandler); > > > > private function unloadHandler(event:Event) : void { > > > > SoundMixer.stopAll(); > > > > } > > > > --- In > flexcoders@yahoogroups.com <flexcoders%40yahoogroups.com><mailto: > flexcoders%40yahoogroups.com <flexcoders%2540yahoogroups.com>>, Alex > Harui <aharui@> wrote: > > > > > > I haven't used this event to shut down a movie, so I don't have > > examples, but I think the recommended pattern is that the loaded SWF > > is supposed to listen for the UNLOAD event on its loaderInfo. If the > > main app is listening, then you're probably right that it is too late. > > Of course, if you're about to set the SWFLoader's source you can > > certainly call swfloader.content.stop() beforehand, but I think stop() > > doesn't stop Audio/Video, just the frame timeline. You'll have to > > have access to the loaded SWFs Sound instances which is why it is > > "better" if the loaded SWF cleans up after itself. > > > > > > From: > flexcoders@yahoogroups.com <flexcoders%40yahoogroups.com><mailto: > flexcoders%40yahoogroups.com <flexcoders%2540yahoogroups.com>> > [mailto:flexcoders@yahoogroups.com <flexcoders%40yahoogroups.com><mailto: > flexcoders%40yahoogroups.com <flexcoders%2540yahoogroups.com>>] > > On Behalf Of djepyon > > > Sent: Tuesday, September 09, 2008 8:35 PM > > > To: flexcoders@yahoogroups.com <flexcoders%40yahoogroups.com><mailto: > flexcoders%40yahoogroups.com <flexcoders%2540yahoogroups.com>> > > > Subject: [flexcoders] Re: SWFLoader unloading, whats the trick? > > > > > > > > > Thanks guys. The feedback I get on here is always great. > > > > > > I was able to listen for UNLOAD on the SWFLoader. I tried a > > > MovieClip(event.target.content).stop() but it seems that its already > > > disappeared at this point and throws a null object reference error. > > > > > > Listening on the content object didn't trigger the event handler. > > > Would it be better to use REMOVED or REMOVED_FROM_STAGE for this? > > > > > > Maybe I could get some sample code? > > > > > > --- In > > > flexcoders@yahoogroups.com <flexcoders%40yahoogroups.com><mailto: > flexcoders%40yahoogroups.com <flexcoders%2540yahoogroups.com>><mailto: > flexcoders%40yahoogroups.com <flexcoders%2540yahoogroups.com>>, > Alex > > Harui <aharui@> wrote: > > > > > > > > The SWFLoader unloads the SWF which just de-references the SWF bytes > > > but does not clear references to objects created by code in that SWF > > > which might be referenced by the player or other code, including > > > Timers, Video, Audio, player events, etc. > > > > > > > > In FP10, there is a new unloadAndStop method that will supposedly > > > clear this stuff out, but short of that, the child SWF should listen > > > for an UNLOAD event and stop Audio and do other cleanup. > > > > > > > > From: > > > flexcoders@yahoogroups.com <flexcoders%40yahoogroups.com><mailto: > flexcoders%40yahoogroups.com <flexcoders%2540yahoogroups.com>><mailto: > flexcoders%40yahoogroups.com <flexcoders%2540yahoogroups.com>> > > > [mailto:flexcoders@yahoogroups.com <flexcoders%40yahoogroups.com><mailto: > flexcoders%40yahoogroups.com <flexcoders%2540yahoogroups.com>><mailto: > flexcoders%40yahoogroups.com <flexcoders%2540yahoogroups.com>>] > > > On Behalf Of Josh McDonald > > > > Sent: Tuesday, September 09, 2008 4:48 PM > > > > To: > flexcoders@yahoogroups.com <flexcoders%40yahoogroups.com><mailto: > flexcoders%40yahoogroups.com <flexcoders%2540yahoogroups.com>><mailto: > flexcoders%40yahoogroups.com <flexcoders%2540yahoogroups.com>> > > > > Subject: Re: [flexcoders] SWFLoader unloading, whats the trick? > > > > > > > > IIRC, any loaded SWF that's no longer referenced will be garbage > > > collected (and fairly quickly from my experience), but streaming audio > > > (or video) is still referenced by the player so it doesn't go > anywhere. > > > > > > > > -Josh > > > > On Wed, Sep 10, 2008 at 9:40 AM, djepyon <ian@<mailto:ian@>> > > > wrote: > > > > Does SWFLoader unload itself when you set a new source path? > Then why > > > > does timeline audio thats set to "stream" in the swf still > continue to > > > > play? Can give me the skinny on properly unloading a SWFLoader? Thx. > > > > > > > > > > > > ------------------------------------ > > > > > > > > -- > > > > Flexcoders Mailing List > > > > FAQ: > http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt > > > > Search Archives: > > > http://www.mail-archive.com/flexcoders%40yahoogroups.comYahoo! Groups > > > Links > > > > > > > > > > > > > > > > > > > > > > > > -- > > > > "Therefore, send not to know For whom the bell tolls. It tolls for > > > thee." > > > > > > > > http://flex.joshmcdonald.info/ > > > > > > > > :: Josh 'G-Funk' McDonald > > > > :: 0437 221 380 :: josh@<mailto:josh@> > > > > > > > > > > > > -- "Therefore, send not to know For whom the bell tolls. It tolls for thee." http://flex.joshmcdonald.info/ :: Josh 'G-Funk' McDonald :: 0437 221 380 :: [EMAIL PROTECTED]
