group展开云需求

代码:
public class MyGroupUI extends GroupUI
   {
      public function MyGroupUI(network:Network, group:Group){
         super(network, group);
      }
     
      override protected function drawContent(graphics:Graphics):void{  
         if(!group.expanded){
            super.drawContent(graphics);
            return;
         }
         var rect:Rectangle = this.bodyRect;
         rect.inflate(rect.width * 0.2, rect.height * 0.2);
         Utils.drawImage(graphics, 'subnetwork_image', rect.x, rect.y, rect.width, rect.height, null, Consts.STRETCH_FILL);
      }
   }