Error #2044: AsyncErrorEvent non pris en charge : text=Error #2095: flash.net.NetStream n’a pas été en mesure d’appeler l’élément de rappel onXMPData. error=ReferenceError: Error #1069: La propriété onXMPData est introuvable sur .CustomClient et il n'existe pas de valeur par défaut.
These errors in the middle of a presentation are a nuisance and you want to get rid of them!
(On the other hand the children liked very much shouting ERROR ERROR ERROR!)
There are a few ways to get rid of an error:
first write good code, :-)
secondly, if you expect something to go wrong you can use a try catch structure:
var myNumberWhichCanGoWrong : 10;
myNumberWhichCanGoWrong--;
trace( 1/myNumberWhichCanGoWrong);
Although I even remember that flash catches thiseasy error itself, you can do:
try (
trace( 1/myNumberWhichCanGoWrong);
)
catch(e:Error){
trace("heee!, you are trying to divide by 0!!!!");
}
but sometimes this "try and catch" game does not work, like in this case (of my presentation of the universe to children):
you have a video, but it lackes some XMLData which are expected and when you create a netstream connection, even with try and catch:
private function connectStream():void {
try {
stream=new NetStream(connection);
} catch (e:ReferenceError) {
trace(e);
}
try {
stream.addEventListener(NetStatusEvent.NET_STATUS, netStatusHandler);
} catch (e:ReferenceError) {
trace(e);
}
try {
stream.client = new CustomClient();
} catch (e:ReferenceError) {
trace(e);
}
addChild(video);
}
with this class:
class CustomClient {
public function onMetaData(info:Object):void {
//trace("metadata: duration=" + info.duration + " width=" + info.width + " height=" + info.height + " framerate=" + info.framerate);
}
public function onCuePoint(info:Object):void {
// trace("cuepoint: time=" + info.time + " name=" + info.name + " type=" + info.type);
}
}
As you can read in the error above:
Flash expects MetaData and if these are not available and there is no default, this results in an error. And "try catch" does not help...
i found the solution here:
http://www.adobe.com/devnet/flash/quickstart/metadata_cue_points.html
it is adding an eventlistener for this error:
.addEventListener(AsyncErrorEvent.ASYNC_ERROR, asyncErrorHandler); stream.addEventListener(NetStatusEvent.NET_STATUS, netStatusHandler); stream
.addEventListener(AsyncErrorEvent.ASYNC_ERROR, asyncErrorHandler); and then handling this error, or ignoring it in the function asyncErrorHandler private function asyncErrorHandler(event:AsyncErrorEvent):void {
//trace(event.text);
} In FLASH cs3 errors are regularly spoiling the fun, this way of getting rid of your errors by eventlisteners is a good tool to spoil the fun of flash trying to irritate you with errors!
And why was I using Flash to present and not powerpoint?
I is just fun programming your own presenter, and also I use flash to connect to my DIY remote controls, see this blog entry about these electronic wonders:
http://myfablab.wordpress.com/2010/12/23/making-a-diy-remote-control-for-a-performance/
