Loader reporting incorrect totalFrames of content?

Question

Hey all,
Anyone ever have any issues detecting the totalFrames of content loaded into a Loader?
I made a dummy animation just for testing (150 frames of text just tweening across the screen) to load. I load that in and when it's loaded I'm always told it's only 2 frames long.
e.g.:
package {
   import flash.display.*;
   import flash.events.*;
   import flash.net.URLRequest;
   public class someClass {
     internal var _loader:Loader = new Loader();
     public function someClass() {
        _loader.contentLoaderInfo.addEventListener(Event.COMPLETE, _loadHandler);
       addChild(_loader);
       _loader.load(new URLRequest('some.swf'));
     protected function _loadHandler(e:Event):void {
         trace('total frames: '+ MovieClip(_loader.content).totalFrames); // 2 every time
I just wrote that by hand now as an example so there might be a typo here or there but you get the general idea. I'm using CS5, flash player 10, just testing the movie and every time it traces 2 total frames. Any idea how to tell how many frames the loaded content actually has?
FWIW I do see the .swf show up on the screen, I know it's loading fine.. Thanks for any help!

Answer 1

Follow the sample, you should assign your loader content to a movieclip and you can get the totalframes of loaded swf:
    ldr= new Loader();
    ldr.contentLoaderInfo.addEventListener(ProgressEvent.PROGRESS, progressListener);
    ldr.contentLoaderInfo.addEventListener(Event.COMPLETE, swfLoaded);
    ldr.load(new URLRequest(animPath+tmp));
    function progressListener (e:ProgressEvent):void{
        ploader.visible=true;
    function swfLoaded(e:Event):void {
        mcExt = e.target.content as MovieClip;
        ldr.contentLoaderInfo.removeEventListener(Event.COMPLETE, swfLoaded);
        ploader.visible=false;
        addChild(mcExt);
      trace(mcExt.totolFrames);