sampledepth.as

《Flash AS3殿堂之路》光盘源码 学习ActionScript 3.0

package org.kingda.book.display
{
	import flash.display.Sprite;

	public class SampleDepth extends Sprite
	{
		public function SampleDepth() {
			var foo:Sprite = new Sprite();
			//这儿使用同包的StarShape类和RectSprite类，不需要import
			var star:StarShape 	= new StarShape();
			var rect:RectSprite = new RectSprite("Rect", 0xFF9900);
			star.x =100;
			star.y = 100;
			rect.x = 50;
			rect.y = 50;
			foo.x = 50;
			foo.y = 50;
			//两个都加入foo中。读者可以将下面两行顺序互换，查看效果
			foo.addChild(star);			
			foo.addChild(rect);
			star.name = "kingda";
			rect.name = "kingda";
			//使用getChildIndex方法得到这两个子对象在列表中的索引值
			trace (foo.getChildIndex(star));//输出：0
			trace (foo.getChildIndex(rect));//输出：1
			trace (foo.getChildByName("kingda"));
			//使用foo绘制灰色圆形，会发现这个矢量图成为背景图
			foo.graphics.beginFill(0xCCCCCC);
			foo.graphics.drawCircle(100,100,100);
			foo.graphics.endFill();
			//将foo加入显示列表
			addChild(foo);
			trace (foo.numChildren);
		}
	}
}