How to unload an external SWF file from a SWFLoader component in Adobe Flex?

Question

I have an application that downloads external SWF files and plays them in an Adobe Flex / Air application through the SWFLoader Flex component . I am trying to find a way to unload them from a button click event. I have google'd far and wide, and no one seems to be able to do this without hacking. The code combination that I see uses:

swfLoader.source = ""; // Removes the external link to the SWF.
swfLoader.load(null); // Forces the loader to try to load nothing.
// Note: At this point sound from the SWF is still playing, and
// seems to still be playing in memory.
flash.media.SoundMixer.stopAll();
// Stops the sound. This works on my development machine, but not 
// on the client's.

If the SWFs are closed (hidden) this way, the program will eventually crash.

Any ideas? I found a lot of posts in different forums with people having the same problem. I assume that I will get one wrong / incomplete answer here, and my post will sink into oblivion, as usual, but anyway, thanks in advance!

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Answer 1

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Answer 2

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Answer 3

swfLoader.autoLoad = false;
swfLoader.unloadAndStop();
swfLoader.autoLoad = true;

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Answer 4

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MovieClip(event.target.content).loaderInfo.addEventListener(Event.UNLOAD, unloadMovieClipHandler);
private function unloadMovieClipHandler(event:Event) : void
{
  SoundMixer.stopAll();                           
} 

Answer 5

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Answer 6

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try {
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} catch (e:*) {}

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unloadAndStop

: http://www.gskinner.com/blog/archives/2008/07/unloadandstop_i.html

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Answer 7

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var loader:Loader = new Loader();
var request:URLRequest = new URLRequest('test.swf');
loader.contentLoaderInfo.addEventListener(Event.COMPLETE, onSwfLoad, false, 0, true);

function onSwfLoad(e:Event):void { addChild(loader); loader.contentLoaderInfo.addEventListener(Event.UNLOAD, onLoaderUnload, false, 0, true);

loader.contentLoaderInfo.removeEventListener(Event.COMPLETE, onSwfLoad, false); } function onLoaderUnload(e:Event):void { trace('LOADER WAS SUCCESSFULLY UNLOADED.'); } //Now to remove this with the click of a button, assuming the buttons name is button_mc button_mc.addEventListener(MouseEvent.MOUSE_DOWN, onButtonDown, false, 0, true);

function onButtonDown(e:MouseEvent):void { loader.unload(); loader.contentLoaderInfo.removeEventListener(Event.UNLOAD, onLoaderUnload); //When you want to remove things completely from memory you simply set their value to null. loader = null; button_mc.removeEventListener(MouseEvent.MOUSE_DOWN, onButtonDown); }

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