I think that's fair enough.

As in AS only, I mean do I have to add it to stage? Ideally I would like to say 
swfLoader.startLoading();

I will look for the applicationComplete though, or perhaps load them into the 
view they will eventually be displayed in, and then just show them when 
selected. I am not sure if there will be a performance issue there though. 

Thanks for your help

Rob



--- In [email protected], Alex Harui <aha...@...> wrote:
>
> If the bug is caused because you're pulling the object off stage as it gets 
> initialized, I don't think we'll spend too much energy on fixing that.  I 
> would try to make sure every SWF is really done (sent applicationComplete) or 
> only remove the ones that are done.
> 
> I'm not sure what you mean by AS-Only way to preload the SWF.  You can add 
> SWFLoaders in AS to any container, set its includeInLayout=false and 
> visible=false and they should load.
> 
> Alex Harui
> Flex SDK Developer
> Adobe Systems Inc.<http://www.adobe.com/>
> Blog: http://blogs.adobe.com/aharui
> 
> From: [email protected] [mailto:[email protected]] On 
> Behalf Of rob_mcmichael
> Sent: Tuesday, September 15, 2009 12:29 PM
> To: [email protected]
> Subject: [flexcoders] Re: Very odd null object RTE on FocusManager
> 
> 
> 
> Hi Alex,
> 
> Thanks for the help.
> 
> The problem is intermittent, perhaps happening one in three times if I have 
> more than three sub applications being loaded in.
> 
> I found the bug was related to an MXML component with two states, which is 
> being repeated. Only once is the alternate state used (if it's the first 
> item). I have therefore removed the state from the repeater, and put it 
> before the repeater. This has stopped the problem, but obviously not resolved 
> the RTE from potentially happening again somewhere else.
> 
> It's interesting what you say about removing the loader. In order to preload 
> the sub applications, I add them to a hidden container on the stage 
> momentarily to start them loading (If there is a way to do this in AS only 
> please let me know). The reference to the sub app swf is still retained for 
> when the user chooses to see it, and it is then attached to the stage again. 
> The RTE happens when there loading in, so I assume this supports that theory.
> 
> This is a section of the MXML component that preloads the swf
> 
> ...
> 
> private function _preLoadSwf(e:PropertyChangeEvent):void
> {
> if (!e.newValue)
> return;
> 
> createChildren();
> this.preLoader.removeAllChildren(); // Remove the child once added
> }
> 
> override protected function createChildren():void
> {
> super.createChildren();
> 
> if (this.preLoader && _ds.preloadSwf)
> this.preLoader.addChild(SWFLoader(_ds.preloadSwf));
> }
> ]]>
> </mx:Script>
> 
> <!-- Display Object used for preloading channels -->
> <mx:Canvas id = "preLoader"
> visible = "false"/>
> 
> ....
> 
> Obviously this is a bit of a hack to force the swfloader to start loading, 
> but I assume it's the cause of the problem.
> 
> Please let me know how to report the bug, and I can try and see if I can 
> recreate the issue, but it's a bit of a tricky one to recreate ;)
> 
> Ta
> 
> Rob
>


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