Javascript 调用 ActionScript 的简单方法
1.在Flex中，ActionScript调用Javascript是比较简单的，说白了就是，在html里，怎么调用Javascript，在ActionScript就怎么调用就可以了
2.如果用js调用as，就稍微麻烦一点，其实也比较简单
MXML代码：
<?xmlversion="1.0"encoding="utf-8"?>
<mx:Applicationxmlns:mx="http://www.adobe.com//mxml"layout="vertical"horizontalAlign="left"backgroundColor="white"
initialize="init()">
<mx:Labeltext="城市名称："/>
<mx:Listid="cityList"width=""height=""dataProvider="{cities}"/>
<mx:ArrayCollectionid="cities">
<mx:String>北京</mx:String>
<mx:String>上海</mx:String>
</mx:ArrayCollection>
<mx:Script>
<![CDATA[
privatefunctioninit():void
{
//注册回调函数供JavaScript调用
ExternalInterface.addCallback("callActionScript",asFunctionByJs);
}
privatefunctionasFunctionByJs(city:String):void
{
cities.addItem(city);
}
]]>
</mx:Script>
</mx:Application>
HTML代码（这些代码都是flexbuilder自动生成的，用于将flash嵌入到网页里，不用仔细看这些代码，注意黄色背景的部分，这是关键部分，是我加入到）
<!--savedfromurl=(0014)about:internet-->
<htmllang="en">
<!--
SmartdevelopersalwaysViewSource.
ThisapplicationwasbuiltusingAdobeFlex,anopensourceframework
forbuildingrichInternetapplicationsthatgetdeliveredviathe
FlashPlayerortodesktopsviaAdobeAIR.
LearnmoreaboutFlexathttp://flex.org
//-->
<head>
<metahttp-equiv="Content-Type"content="text/html;charset=utf-"/>
<!--BEGINBrowserHistoryrequiredsection-->
<linkrel="stylesheet"type="text/css"href="history/history.css"/>
<!--ENDBrowserHistoryrequiredsection-->
<title></title>
<scriptsrc="AC_OETags.js"language="javascript"></script>
<!--BEGINBrowserHistoryrequiredsection-->
<scriptsrc="history/history.js"language="javascript"></script>
<!--ENDBrowserHistoryrequiredsection-->
<style>
body{}{margin:px;overflow:hidden}
</style>
<scriptlanguage="JavaScript"type="text/javascript">
<!--
//-----------------------------------------------------------------------------
//Globals
//MajorversionofFlashrequired
varrequiredMajorVersion=9;
//MinorversionofFlashrequired
varrequiredMinorVersion=0;
//MinorversionofFlashrequired
varrequiredRevision=124;
//-----------------------------------------------------------------------------
//-->
</script>
<scripttype="text/javascript">
functioncallActionScript(value)
{
//根据id获取flash实例，在这里id是CallAsFromJs，可以从Embed
varflash=(navigator.appName.indexOf("Microsoft")!=-)?window["CallAsFromJs"]:document["CallAsFromJs"];
//调用ActionScript注册的回调方法
flash.callActionScript(value);
}
</script>
</head>
<bodyscroll="no">
输入城市名称：<inputtype="text"id="newCityName"/><inputtype="button"value="添加城市"onclick="callActionScript(newCityName.value);"/>
<scriptlanguage="JavaScript"type="text/javascript">
<!--
//VersioncheckfortheFlashPlayerthathastheabilitytostartPlayerProductInstall(6.0r65)
varhasProductInstall=DetectFlashVer(6,0,65);
//Versioncheckbaseduponthevaluesdefinedinglobals
varhasRequestedVersion=DetectFlashVer(requiredMajorVersion,requiredMinorVersion,requiredRevision);
if(hasProductInstall&&!hasRequestedVersion){
//DONOTMODIFYTHEFOLLOWINGFOURLINES
//Locationvisitedafterinstallationiscompleteifinstallationisrequired
varMMPlayerType=(isIE==true)?"ActiveX":"PlugIn";
varMMredirectURL=window.location;
document.title=document.title.slice(0,47)+"-FlashPlayerInstallation";
varMMdoctitle=document.title;
AC_FL_RunContent(
"src","playerProductInstall",
"FlashVars","MMredirectURL="+MMredirectURL+'&MMplayerType='+MMPlayerType+'&MMdoctitle='+MMdoctitle+"",
"width","100%",
"height","100%",
"align","middle",
"id","CallAsFromJs",
"quality","high",
"bgcolor","#ffffff",
"name","CallAsFromJs",
"allowScriptAccess","sameDomain",
"type","application/x-shockwave-flash",
"pluginspage","http://www.adobe.com/go/getflashplayer"
);
}elseif(hasRequestedVersion){
//ifwe'vedetectedanacceptableversion
//embedtheFlashContentSWFwhenalltestsarepassed
AC_FL_RunContent(
"src","CallAsFromJs",
"width","%",
"height","%",
"align","middle",
"id","CallAsFromJs",
"quality","high",
"bgcolor","#ffffff",
"name","CallAsFromJs",
"allowScriptAccess","sameDomain",
"type","application/x-shockwave-flash",
"pluginspage","http://www.adobe.com/go/getflashplayer"
);
}else{//flashistoooldorwecan'tdetecttheplugin
varalternateContent='AlternateHTMLcontentshouldbeplacedhere.'
+'ThiscontentrequirestheAdobeFlashPlayer.'
+'<ahref=http://www.adobe.com/go/getflash/>GetFlash</a>';
document.write(alternateContent);//insertnon-flashcontent
}
//-->
</script>
<noscript>
<objectclassid="clsid:DCDBE-AED-cf-B-"
id="CallAsFromJs"width="%"height="%"
codebase="http://fpdownload.macromedia.com/get/flashplayer/current/swflash.cab">
<paramname="movie"value="CallAsFromJs.swf"/>
<paramname="quality"value="high"/>
<paramname="bgcolor"value="#ffffff"/>
<paramname="allowScriptAccess"value="sameDomain"/>
<embedsrc="CallAsFromJs.swf"quality="high"bgcolor="#ffffff"
width="%"height="%"name="CallAsFromJs"align="middle"
play="true"
loop="false"
quality="high"
allowScriptAccess="sameDomain"
type="application/x-shockwave-flash"
pluginspage="http://www.adobe.com/go/getflashplayer">
</embed>
</object>
</noscript>
</body>
</html>
总结，js调用as，大概分为3步：
1.as使用ExternalInterface.addCallback注册回调函数
2.在js函数中根据flash在网页中的id获取实例
3.用上面获取到flash实例，调用as的函数
以上所述是小编给大家介绍的Javascript调用ActionScript的简单方法，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对毛票票网站的支持！