你可以把它看作事件对象.因应它的工作就是生成事件对象.
此类文档详细:
Classes/AS2/events/Event.as
主类:
打开 Event.as 文档.输入下面的代码:
class AS2.events.Event extends Object
{
//----------------------------------------
//事件的常数名
public static var COMPLETE:String = "complete";
public static var CANCEL:String = "cancel";
public static var CHANGE:String = "change";
public static var CLOSE:String = "close";
public static var CONNECT:String = "connect";
public static var FULLSCREEN:String = "fullScreen";
public static var OPEN:String = "open";
public static var REMOVED:String = "removed";
public static var RESIZE:String = "resize";
public static var SCROLL:String = "scroll";
public static var SELECT:String = "select";
//----------------------------------------
public var type:String;
public var target:Object;
//----------------------------------------
private var className:String = "Event";
//----------------------------------------
//构造函数.
public function Event(type:String)
{
this.type = type;
}
//----------------------------------------
public function toString():String
{
var str:String = "";
for (var i:String in this) {
if (this[i] != undefined) {
str += i + "=" + this[i] + " ";
}
}
return "[" + this.className + " " + str.slice(0,str.length - 1) + "]";
}
//----------------------------------------
}
保存文档.
此类包含下面内容:
1.事件的常数名.如:
public static var COMPLETE:String = "complete";
...
2.基本的属性.如:
public var type:String;
…
3.className 属性.如:
private var className:String = "Event";
4.构造函数.如:
public function Event(type:String)
{
this.type = type;
}
5.toString() 方法.如:
public function toString():String
{
var str:String = "";
for (var i:String in this) {
if (this[i] != undefined) {
str += i + "=" + this[i] + " ";
}
}
return "[" + this.className + " " + str.slice(0,str.length - 1) + "]";
}
如果你嫌此方法阻碍你的执行效率.可以改成如下(标准):
public function toString():String
{
return "[object " + this.className + "]";
}
这里讲下 toString() 方法.在类中定义此方法.在输出此类实例名实调用此方法.如:
class className
{
...
private var className:String = "className";
public function toString():String
{
return "[object " + this.className + "]";
}
...
}
import className;
var cn:className = new className();
trace(cn);// 调用 toString() 方法.输出: [object className]
当然你也可以改成 AS3 中 Event 类一样的方法.但没有必要,很少会用到.
如果要向 Event 类传递参数和定义新的事件名,请看下面.
[6.4.创建 IOErrorEvent 类(错误事件类,继承 Event 类)]
此类文档详细:
Classes/AS2/events/IOErrorEvent.as
主类:
打开 IOErrorEvent.as 文档,输入下面的代码:
import AS2.events.Event;
//----------------------------------------
class AS2.events.IOErrorEvent extends Event
{
//----------------------------------------
//事件的常数名.
public static var IO_ERROR:String = "IOError";
//----------------------------------------
//属性参数.
public var text:String;
//----------------------------------------
//className 属性
private var className:String = "IOErrorEvent";
//----------------------------------------
//在构造函数中添加参数.
public function IOErrorEvent(type:String, text:String)
{
super(type);
this.text = text;
}
//----------------------------------------
}
保存文档.
[6.5.创建 HTTPStatusEvent 类(http状态事件类,继承 Event 类)]
此类文档详细:
Classes/AS2/events/HTTPStatusEvent.as
主类:
打开 HTTPStatusEvent.as 文档.输入下面的代码:
import AS2.events.Event;
//----------------------------------------
class AS2.events.HTTPStatusEvent extends Event
{
//----------------------------------------
//事件的常数名.
public static var HTTP_STATUS:String = "httpStatus";
//----------------------------------------
//属性参数
public var status:Number;
//----------------------------------------
//className 属性
private var className:String = "HTTPStatusEvent";
//----------------------------------------
//在构造函数中添加参数.
public function HTTPStatusEvent(type:String, status:Number)
{
super(type);
this.status = status;
}
//----------------------------------------
}
保存文档.
[6.6.示例: EventClass 类(简单的示例)]
此示例文档详细:
Example/AS2/events/Event/EventClass.as
Example/AS2/events/Event/EventExample.as
Example/AS2/events/Event/EventExample.xml
Example/AS2/events/Event/EventExample.fla
主类:
打开 EventClass.as 文档.输入下面的代码:
import AS2.utils.CFDelegate;
import AS2.events.Event;
import AS2.events.IOErrorEvent;
import AS2.events.HTTPStatusEvent;
import AS2.events.CFEventDispatc
