How to debug event in flex?
===

I'm new to flex, and using a small open-source UI library [ReCoral](https://github.com/xiaotie/RedCoral). In my test, I use its `Application` class as the root of mxml, and which has a click handler.

	<?xml version="1.0" encoding="utf-8"?>
	<common:Application
		xmlns:fx="http://ns.adobe.com/mxml/2009" 
		xmlns:common="geb.common.*" width="500" height="500"
		xmlns:controls="geb.controls.*"
		xmlns:mx="library://ns.adobe.com/flex/mx"
		click="hello()">
		
		<fx:Script>
			<![CDATA[
				private function hello(): void {
					trace("world");
				}
			]]>
		</fx:Script>
	
		<controls:Label text="Click Me" height="100" width="100" click="hello()" />
	</common:Application>

You can see the code is quite simple.

But when I click the Label, or the Application, the `hello()` method seems never invoked. I tried to add a breakpoint on the `trace("world")` line in debug mode, it had never been triggered.

Since the author is quite busy, and I'm new to flex, I don't know how to debug this problem.

1. Is there any way to listen any click event, and log the information?
2. Is there any useful document I should read?