该类提供跟踪对此代理管理的项目进行的更改的功能。任何数量的对象都可使用 addEventListener() 方法“侦听”对此对象的更改。
此类为代理类。可以监听代理的Object对象是否进行更改：
<s:Application xmlns:fx=
"http://ns.adobe.com/mxml/2009"
xmlns:s=
"library://ns.adobe.com/flex/spark"
xmlns:mx=
"library://ns.adobe.com/flex/mx"
creationComplete=
"initApp();"
>
<s:layout>
<s:BasicLayout/>
</s:layout>
<s:Button x=
"139"
y=
"444"
label
=
"按钮"
click=
"button1_clickHandler(event)"
/>
<fx:Script>
<![CDATA[
import
mx.collections.ArrayCollection;
import
mx.controls.Alert;
import
mx.events.PropertyChangeEvent;
import
mx.utils.ObjectProxy;
private
var
obj:
Object
;
private
var
o:ObjectProxy;
private
function
initApp():
void
{
obj=
new
Object
();
o=
new
ObjectProxy(obj);
o.name=
"@"
;
o.age=
18
;
o.aa=
"sa"
;
o.addEventListener(PropertyChangeEvent.PROPERTY_CHANGE,ChangeHandler);
}
protected
function
button1_clickHandler(event:MouseEvent):
void
{
o.name=
"ok"
;
}
private
function
ChangeHandler(e:PropertyChangeEvent):
void
{
trace
(
"发生变化"
);
}
]]>
</fx:Script>
</s:Application>
|
也可以用于ArrayCollection里面的设置：
private
var
dataArr:ArrayCollection=
new
ArrayCollection
([
new
ObjectProxy(
Object
({location:
"CF"
,id:
"data/gril.png"
, name:
"刘德华"
, skill:
"data/idea.png"
,fight:
10000
, grade:
"100"
,shot:
"100"
, onbreak:
"100"
,speed:
"10"
,strongth:
"100"
, block:
"100"
, save:
"0.5"
})),
new
ObjectProxy(
Object
({location:
"SS"
,id:
"data/boy.png"
, name:
"成龙"
, skill:
"data/idea.png"
,fight:
10000
, grade:
"100"
,shot:
"100"
, onbreak:
"100"
,speed:
"20"
,strongth:
"100"
, block:
"100"
, save:
"0.5"
})),
new
ObjectProxy(
Object
({location:
"RMF"
,id:
"data/gril.png"
, name:
"李连杰"
, skill:
"data/idea.png"
,fight:
10000
, grade:
"100"
,shot:
"100"
, onbreak:
"100"
,speed:
"30"
,strongth:
"100"
, block:
"100"
, save:
"0.5"
})),
new
ObjectProxy(
Object
({location:
"RCM"
,id:
"data/gril.png"
, name:
"张学友"
, skill:
"data/idea.png"
,fight:
10000
, grade:
"100"
,shot:
"100"
, onbreak:
"100"
,speed:
"40"
,strongth:
"100"
, block:
"100"
, save:
"0.5"
})),
new
ObjectProxy(
Object
({location:
"LCM"
,id:
"data/boy.png"
, name:
"张国荣"
, skill:
"data/idea.png"
,fight:
10000
, grade:
"100"
,shot:
"100"
, onbreak:
"100"
,speed:
"50"
,strongth:
"100"
, block:
"100"
, save:
"0.5"
})),
new
ObjectProxy(
Object
({location:
"LMF"
,id:
"data/gril.png"
, name:
"李宗盛"
, skill:
"data/idea.png"
,fight:
10000
, grade:
"100"
,shot:
"100"
, onbreak:
"100"
,speed:
"60"
,strongth:
"100"
, block:
"100"
, save:
"0.5"
}))
]);
|