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flex 自定义组件事件问题

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悬赏园豆:10 [已关闭问题] 关闭于 2017-01-23 15:43

实现功能:定义自定义组件中<mx:Image>控件的鼠标经过事件:

自定义组件(名称为Component1.mxml)主要代码:

<fx:Script>
private function mouseover(event:MouseEvent):void {
                //分发(广播)事件;当点击登录按钮时就触发了这一事件
                var e:MyEvent= new MyEvent(MyEvent.myMOUSEOVER);
                this.dispatchEvent(e);
            }
            private function mouseout(event:MouseEvent):void {
                //分发(广播)事件;当点击登录按钮时就触发了这一事件
                this.dispatchEvent(new MyEvent(MyEvent.myMOUSEOUT));
            }
        ]]>
    </fx:Script>
    <fx:Metadata>
        <!--add event-->
        [Event(name="myMouseover",type="bridge.MyEvent")]
        [Event(name="myMouseout",type="bridge.MyEvent")]
    </fx:Metadata>
<mx:Image id="imgShouZhan" mouseOver="mouseover(event)" mouseOut="mouseout(event)" height="10" width="10" right="2" bottom="2" scaleContent="true" name="imgShouZhan"/>

添加类:

package bridge {
    import flash.events.Event;
    
    public class MyEvent extends FlexEvent {
        public static const myMOUSEOVER:String="myMouseover";
        public static const myMOUSEOUT:String="myMouseout";    
        
        public function MyEvent(type:String) {
            super(type, false, false);
        }
    }
}

定义监听事件:

var compTemp:Component1= new Component1();
compTemp.GetImgShouZhan().addEventListener(MyEvent.myMOUSEOVER, SetImgShouZhanUrl);//GetImgShouZhan()方法返回<mx:Image>对象
private function SetImgShouZhanUrl(event:MyEvent):void {
    Alert.show("Preview");
}

上面的代码仍然无法监听到image控件的鼠标经过事件,请大神帮忙看看?

问题补充:

如果我在mxml中直接引用自定义控件,并定义监听事件是可以的,如下:

<cus:Component1 id="myComponent" x="10" y="37" myMouseover="SetImgShouZhanUrl(event)"></cus:Component1>

但是为什么我在AS中使用 var compTemp:Component1= new Component1();动态生成一个自定义组件时,添加监听事件就不行了呢?

Alec-Yin的主页 Alec-Yin | 初学一级 | 园豆:188
提问于:2013-06-04 13:06
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