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Flex ApplicationÀïµÄaddChild()

ת×Ô:http://www.cnblogs.com/jiahuafu/archive/2009/03/20/1417679.html
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private function init():void
{
var sp:Sprite = new Sprite();
addChild(sp);
}
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ÕâÊÇÒòΪApplicationµÄaddChild·½·¨²¢·ÇÍêÈ«¼Ì³Ð×ÔDisplayObjectContainer£¬
Application→LayoutContainer→Container→UIComponent→FlexSprite→Sprite→DisplayObjectContainer
¶øÊÇÔÚContainerÄÇÀï±»ÖØÐ´ÁË£º
public override function addChild(child:DisplayObject):DisplayObject
public override function addChild(child:DisplayObject):DisplayObject
ËäÈ»²ÎÊýchildµÄÀàÐÍÊÇDisplayObject£¬µ«ÊÇËü±ØÐëʵÏÖIUIComponent½Ó¿Ú£¨ËùÓÐFlex×é¼þ¶¼ÊµÏÖÁËÕâÒ»½Ó¿Ú£©£¬²ÅÄÜÌí¼Ó¡£
Èç¹ûÒªÔÚApplicationÀïÌí¼ÓSprite£¬¿ÉÒÔÏȰÑËü×°½øÒ»¸öUIComponent£¬È»ºóÔÙÌí¼ÓÕâ¸öUIComponent£º
import mx.core.UIComponent;
private function init():void
{
var sp:Sprite = new Sprite();
var uc:UIComponent = new UIComponent();
uc.addChild(sp);
addChild(uc);
}



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