Generic events and additional parameters in Actionscript 3.0?

Question

Assuming the following pattern:

someObjectInstance.addEventListener(MyDisplayObject.EVENT_CONSTANT, _handleMyEvent);


private function _handleMyEvent( event:Eve         


        

Answer 1

There is a way of passing custom data to the handler method without creating a custom event.

private function test() {
    var data : SomeObject = new SomeObject;
    var a:SomeEventDispatcher = new SomeEventDispatcher();
    a.addEventListener(Event.COMPLETE, handle(data));   
    a.dispatchCompleteEvent();
}

private function handle(data : SomeObject) : Function {
    return function(e : Event) : void {
       IEventDispatcher(e.target).removeEventListener(Event.COMPLETE, arguments.callee);
       trace(e + ", " + data);
    };
}