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Flash AS2 事件处理机制(10) 这两个类的很相似.它们都是提供事件通知和侦听器管理功能.
但 AsBroadcaster 类是系统内置的.执行效率会比 BroadcasterMX 类快很多.所以这里我们就用 AsBroadcaster
类来讲解.
此类详细:
public addListener(listenerObj:Object):Boolean ---注册侦听器.
public broadcastMessage(eventName:String):Void ---广播消息/发送事件.
public static initialize(obj:Object):Void ---将事件通知和侦听器管理功能添加到给指定的对象
public removeListener(listenerObj:Object):Boolean ---移除侦听器.
public _listeners:Array [只读] ---对已注册侦听器对象的引用.
该怎么用呢? 看下面的示例:
[4.1.示例: AsBEventClass 类(简单的示例)]
此示例文档详细:
Example/AS2/events/AsBEvent/AsBEventClass.as
Example/AS2/events/AsBEvent/AsBEventExample.as
Example/AS2/events/AsBEvent/AsBEventExample.xml
Example/AS2/events/AsBEvent/AsBEventExample.fla
主类:
打开 CFEventClass.as 文档,输入下面的代码:
import mx.utils.Delegate;
//----------------------------------------
class AsBEventClass extends AsBroadcaster
{
//----------------------------------------
public var tXML:XML;
//----------------------------------------
public function AsBEventClass(url:String)
{
AsBroadcaster.initialize(AsBEventClass.prototype);
this.tXML = new XML();
this.tXML.onLoad = Delegate.create(this, this.XMLonLoad);
this.tXML.load(url);
}
private function XMLonLoad(success:Boolean):Void
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