Flex 2和JavaScript交互-优快云博客

在Flex开发的时候,经常遇到一些问题处理起来比较麻烦.这个时候调用html页面里的js代码就成了最快的解决方案.flex主要是通过ExternalInterface.call来调用页面的代码,下面的例子是不需要返回值的调用.

joinmeet.mxml

代码 <?xml version="1.0" encoding="utf-8"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" width="200" height="150"> <mx:Script> <![CDATA[ import flash.external.*;

public function Joinmeet() : void { var f : String = "showsubmenu"; var m : String = ExternalInterface.call(f,"0"); trace(m); }

public function callWrapper():void { var f:String = "changeDocumentTitle"; var m:String = ExternalInterface.call(f,"New Title"); trace(m); } ]]> </mx:Script> <mx:Button label="提交" click="Joinmeet()" x="123" y="118"/> </mx:Application>

代码 <!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=gb2312" />

<title>无标题文档</title> </head> <style type="text/css"> <!-- .Layer1 { position:absolute; left:0px; top:50px; width:80%; height:205px; z-index:1; background:#ffe; border:1px #999 solid; background:#000;

}

#Layer1 { position:absolute; left:15px; top:3px; width:74px; height:26px; z-index:2; background:#f00;

}

--> </style> <SCRIPT language="javascript"> function showsubmenu(sid) { whichEl = eval("submenu" + sid); if (whichEl.style.display == "none") { eval("submenu" + sid + ".style.display=\"\";"); } else { eval("submenu" + sid + ".style.display=\"none\";"); }

}

function changeDocumentTitle(a) { window.document.title=a; return "successful";

}

</SCRIPT> <div id="Layer1" οnclick="showsubmenu(0)" ></div> <div class="Layer1" id=submenu0 align="center" style="display:none;">