[as-js]JavaScript调用ActionScript

5月 16th, 2007

[问题描述]：通过JavaScript调用ActionScript中的变量、方法
[简析]：通过ExternalInterface类来实现。最好还是不要直接调用变量，推荐通过调用方法来获取变量值
[实例代码]：

1、flash8创建空fla文档，保存为test.fla,帧上写如下代码：

ActionScript Code:

import flash.external.*;
var methodName:String = "getTestNum";
var instance:Object = null;
var method:Function = getTestNum;
var wasSuccessful:Boolean = ExternalInterface.addCallback (methodName, instance, method);
var testNum:Number;
function getPctLoaded ()
{
testNum = 0;
return testNum;
}

2、新建test.html网页，代码如下

html Code:

< !DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
</head>
<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=7,0,19,0" id="testSWF" width="550" height="400" title="test">
<param name="movie" value="test.swf" />
<param name="quality" value="high" />
<embed src="test.swf" quality="high" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" width="550" height="400"></embed>
</object>
<form>
<input type="button" onclick="callExternalInterface()" value="Call ExternalInterface" />
</form>
<script>
function callExternalInterface() {
alert(thisMovie("testSWF").getTestNum());
}
function thisMovie(movieName) {
if (navigator.appName.indexOf("Microsoft") != -1) {
return window[movieName]
}
else {
return document[movieName]
}
}
</script>
<body>
</body>
</html>

3、测试，通过浏览器运行test.html，点击按钮后效果如图：

This entry was posted on 星期三, 5月 16th, 2007 at 12:11 下午 and is filed under Flash AS2, Flash在RIA中, JavaScript. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

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