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Flex 与 JavaScript 交互

發布時間:2024/1/17 37 豆豆
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Flex 與 JavaScript 交互,主要依靠Flex的ExternalInterface,其提供了addCallBack和call方法.
下面的例子將演示Flex調用javascript,和javascript調用Flex

javascript代碼:

代碼 function?hello(param)?{????
????alert(param);????
????
return?"jsp?Hello:"?+?param;????
}????
???
function?callFlexFunction()?{????
????
var?x?=?document.getElementById("flexObject").flexHelloWorld("Hello",?"world");????
????alert(x);????
}???

?

Flex代碼:

?

代碼 <?xml?version="1.0"?encoding="utf-8"?>???
<mx:Application?xmlns:mx="http://www.adobe.com/2006/mxml"?layout="absolute"???
????initialize
="initApp()">???
????????
????
<mx:Script>???
????????
<![CDATA????
????????????import?mx.controls.Alert;????
????????????
????????????public?
function?flexHelloWorld(param1:String,?param2:String):String?{????
????????????????Alert.show(
"param1:?"?+?param1?+?";?param2:"?+?param2);????
????????????????
return?"Hello?"?+?param1?+?param2;????
????????????}????
????????????????
????????????public?
function?initApp():void?{????
????????????????ExternalInterface.addCallback(
"flexHelloWorld",?flexHelloWorld);????
????????????}????
????????????????
????????????public?
function?jspHello():void?{????
????????????????
var?s:String?=?ExternalInterface.call("hello",?"Flex");????
????????????????Alert.show(s);????
????????????}????
????????????????
????????]]
>???
????
</mx:Script>???
????????
????
<mx:Button?x="52"?y="58"?label="call?javascript"?click="jspHello()"/>???
????????
</mx:Application>???

?

?

轉載于:https://www.cnblogs.com/techrich/archive/2010/01/14/1647928.html

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