How to catch all exceptions in Flex?

Question

When I run a Flex application in the debug flash player I get an exception pop up as soon as something unexpected happened. However when a customer uses the application he d

Answer 1

I attached the event listener to the 'root', which worked for me:

sprite.root.loaderInfo.uncaughtErrorEvents.addEventListener(UncaughtErrorEvent.UNCAUGHT_ERROR, onUncaughtError);

In the debug Flash Player this will still error, but in the non-debug version the error will appear in Flash Player's dialog box - and then the handler will respond. To stop the dialog box from appearing, add:

event.preventDefault();

so:

    private function onUncaughtError(event:UncaughtErrorEvent):void
    {
        event.preventDefault();
        // do something with this error
    }

I was using this in AIR, but I assume it works for standard AS3 projects too.