flex图片拖拽

/**
 * 图片拖拽
 */
 public function dragHandler(event:MouseEvent):void{
 	 //CurrentTarget指定要实现拖拽事件的初始化目标
    var dragInitiator:Image=event.currentTarget as Image;
 	// 定义拖拽挂载数据源
	var dragSource:DragSource = new DragSource();
	//向对象添加数据
	dragSource.addData(dragInitiator.source,"img");
	//创建一个拖拽对象的代理作为拷贝
    var dragProxy:Image=new Image();
    dragProxy.source=event.currentTarget.source;
    //使用DragManager静态方法doDrag开始拖拽
    DragManager.doDrag(dragInitiator,dragSource,event,dragProxy);
 }
 private function dragEnterHandler(event:DragEvent):void{
       var dropTarget:Image=event.currentTarget as Image;
       DragManager.acceptDragDrop(dropTarget);
      }
private function dragDropHandler(event:DragEvent):void{
	img_main.source=event.dragSource.dataForFormat("img");
}

 

<!-- 拖拽 -->
	<s:Panel x="10" y="285" width="250" height="204" baseColor="#EF5D5D">
		<mx:Image x="55" y="13" width="131" height="132" 
			id="img_main" source="image/mt.jpg" 
			dragDrop="dragDropHandler(event)" dragEnter="dragEnterHandler(event)"/>
	</s:Panel>
	<s:Group x="268" y="289" width="200" height="200">
		<mx:Image x="28" y="36" width="60" height="78" id="img_1" source="image/java.jpg" 
			mouseMove="dragHandler(event)"/>
		<mx:Image x="111" y="39" width="73" height="75" id="img_2" source="image/mt.jpg" 
			mouseMove="dragHandler(event)"/>
	</s:Group>