sampleoverandout.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;
	import flash.events.MouseEvent;

	public class SampleOverAndOut extends Sprite
	{
		public function SampleOverAndOut() {
			var foo:RectSprite = new RectSprite("Foo", 0xffcc00);
			foo.name = "Foo";
			addChild(foo);
			fooCon.addEventListener(MouseEvent.MOUSE_OVER, overHandler);
			fooCon.addEventListener(MouseEvent.MOUSE_OUT, 	outHandler);
					
			
			var bar:RectSprite = new RectSprite("Bar", 0x669900);			
			bar.name = "Bar";
			bar.x = 150;
			addChild(bar);
			bar.addEventListener(MouseEvent.ROLL_OVER, 	overHandler);
			bar.addEventListener(MouseEvent.ROLL_OUT, 	outHandler);		
		}
		private function overHandler(evt:MouseEvent):void {
			trace ("悬停" + evt.target + ":" + evt.target.name);
		}
		private function outHandler(evt:MouseEvent):void {
			trace ("移出" + evt.target + ":" + evt.target.name);
		}
	}
}
/*MOUSE_OVER MOUSE_OUT
对于Foo,从外到里移动过程中，发现移到里面的TextField对象时，也会发出悬停和移出事件
输出：
悬停[object RectSprite]:Foo
移出[object RectSprite]:Foo
悬停[object TextField]:instance2
移出[object TextField]:instance2
悬停[object RectSprite]:Foo
移出[object RectSprite]:Foo

*/
/*ROLL_OVER ROLL_OUT
对于Bar，则不会，悬停和移出事件只会对bar发出
输出：
悬停[object RectSprite]:Bar
移出[object RectSprite]:Bar
*/