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Flex ApplicationÀïµÄaddChild()

ת×Ô:http://www.cnblogs.com/jiahuafu/archive/2009/03/20/1417679.html
ÔÚFlex ApplicationÀÊDz»ÄÜÖ±½ÓÓÃaddChildÌí¼ÓSprite£¬MovieClipµÈÀ´×Ôflash.display°üÀïµÄÀàµÄ¡£Æ©ÈçÒÔÏ´úÂë¾Í»á±¨´í£º
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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package Package
{
 import flash.display.DisplayObject;
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 import flash.events.*;
 import flash.net.URLRequest;
 
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 import mx.events.FlexEvent;
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