Custom event dispatching example Flash Builder 4.6

CustomAwesomeEvent.as

package myEvents
{
	import flash.events.Event;

	public class CustomAwesomeEvent extends Event
	{
		
		public static const ENABLE_CHANGED:String = "enableChanged";
		
		public function CustomAwesomeEvent(type:String, isEnabled:Boolean=false)
		{
			// you have to do this for some reason
			super(type);
			
			// Set the new property.
			this.isEnabled = isEnabled;
		}
		
		// Define a public variable to hold the state of the enable property.
		public var isEnabled:Boolean;
		
		
		// Override the inherited clone() method.
		override public function clone():Event {
			return new CustomAwesomeEvent(type, isEnabled);
		}
	}
}

message.mxml

<?xml version="1.0" encoding="utf-8"?>
<s:View xmlns:fx="http://ns.adobe.com/mxml/2009" 
		xmlns:s="library://ns.adobe.com/flex/spark" title="SingleMessageDisplayer"
		contentCreationComplete="view1_contentCreationCompleteHandler(event)">
	
	<fx:Script>
		<![CDATA[
			import mx.events.FlexEvent;
			
			import myEvents.CustomAwesomeEvent;
			
			
			
			protected function goBack_clickHandler(event:MouseEvent):void
			{
				navigator.popToFirstView();
				
			}
			
			protected function button1_clickHandler(event:MouseEvent):void
			{
				//custom event
				dispatchEvent(new CustomAwesomeEvent("enableChanged", true));
				trace("event was just dispatched");
				
			}
			
			protected function view1_contentCreationCompleteHandler(event:FlexEvent):void
			{
				// TODO Auto-generated method stub
				addEventListener(CustomAwesomeEvent.ENABLE_CHANGED, doSomethingCool);
				trace("Added listener on content creation complete");
			}
			
			protected function doSomethingCool(e:CustomAwesomeEvent):void{
				trace("fired do something cool");
				trace("Type:" + e.type);
				trace("Is enabled?" + e.isEnabled);
			}
			
		]]>
	</fx:Script>
	
	<fx:Declarations>
		<!-- Place non-visual elements (e.g., services, value objects) here -->
	</fx:Declarations>
	<s:Button id="goBack" x="123" y="311" label="Back" click="goBack_clickHandler(event)"/>
	<s:Label x="10" y="20" text="Time:"/>
	<s:Label x="76" y="20" width="219" text="{data.date}"/>
	<s:Label x="10" y="43" text="Id:"/>
	<s:Label x="76" y="43" width="235" text="{data.id}"/>
	<s:Label x="10" y="67" text="Source:"/>
	<s:Label x="76" y="66" width="234" text="{data.source}"/>
	<s:Label x="10" y="109" text="Message:"/>
	<s:Label left="10" top="130" width="300" height="162" text="{data.text}"/>
	<s:Button x="229" y="27" width="81" height="31" label="Custom Event"
			  click="button1_clickHandler(event)" fontSize="7"/>
</s:View>