flex 自定义事件

一般用法：

AppEvent.addListener("menu_selected",function(evt:AppEvent):void

                {

                    var data:Object=evt.data as Object; 

                    rightArea.removeAllElements();

                    var widget:Class=getDefinitionByName(data.widget as String) as Class;

                    widgets=new widget();

                    rightArea.addElement(widgets);

                }); 

AppEvent.dispatch("menu_selected",data);

自定义事件：

调用：

<component:ImageSwap id="mainImage" width="670" height="100%" preClick="mainImage_preClickHandler(event)"
nextClick="mainImage_nextClickHandler(event)"/>

 

声明：

实现：

this.dispatchEvent(new Event('imageLoaded'));

dispatchEvent(new MouseEvent("preClick"));

dispatchEvent(new MouseEvent("nextClick"));