as中的事件和自定义事件

事件1：
<s:Button x="351" y="230" lable="click Me" id="bt" onclick="bt.lable='I had Clicked'"/>

 

 

事件2：mxml方式自定义事件
<fx:script><![CDATA[
protected function button_clickHandler():void{
     dispatchEvent(new Event("Clicked"));
}
protected function applicationn_creationCompleteHandler():void{
     this.addEventListener("Clicked".clickedHandler);
}
private function clickedHandler(e:Event):void{
    trace("事件被监听到！");
}
]]>
</fx:script>
<fx:Metadata>
[Event(name="Clicked",type="flash.events.Event")]
</fx:Metadata>
<s:Button x="409" y="209" lable="按钮" click="button_clickHandler()"/>

 

 

事件3：As自定义事件
TestEvent.mxml
<fx:Script>
<![CDATA[
  protected function button_clickHandler():void{
        var evt:MyEvent=new MyEvent(MyEvent,MYEVENT,2);
        dispatchEvent(evt);
  }
  protected function application_creationCompeleteHandler():void{
        this.addEventListener(MyEvent.MYEVENT,eventHandler);
  }
  private function eventHandler(e:MyEvent):void{
        trace(e.getEventObject());
  }  
]]>
</fx:Script>

<s:Button x="100' y="100" lable="按钮" click="button_clickHandler()"/>

 

MyEvent.as
public class MyEvent extends Event{

  public static const MYEVENT:String="myevent";
  private var eventObject:int;
  public function MyEvent(type:String,i:int,bubbles:Boolean=false;cancelable:Boolean=false)  {
        super(type,bubbles,cancelable);
  }

  public function getEventObject():int{
        return eventObjetct;  
  }
}