z-index 的處理經常遇到的有三種情況, 先提兩種:
1) 將 display object 由原來的 z-index 提到最高值
可以先 removeChild, 再使用 addChild
2) display object 在某些時候要提到最高值, 某些時候要回到原來的 z-index
做個空的 Sprite 物件去佔原來位置, 之後再對調回來
this.addEventListener(MouseEvent.MOUSE_OVER, onMouseOver); this.addEventListener(MouseEvent.MOUSE_OUT, onMouseOut); function onMouseOver(e:MouseEvent):void{ var _mc:MovieClip = e.target as MovieClip; var _p:DisplayObjectContainer = _mc.parent as DisplayObjectContainer; // 建立佔茅坑者 _mc.occu = new Sprite; _p.addChild(_mc.occu); // 交換位置 _p.swapChildren(_mc, _mc.occu); } function onMouseOut(e:MouseEvent):void{ var _mc:MovieClip = e.target as MovieClip; var _p:DisplayObjectContainer = _mc.parent as DisplayObjectContainer; // 換回原來的位置 _p.swapChildren(_mc, _mc.occu); delete _mc.occu; }