网页内js与swf间的通讯

2016-9-6 zhulinan JavaScript

当Flash置于HTML容器中时，经常会遇到AS与JS的通信问题，本文提供了一种解决方法：

Htm代码：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <title>js与as3间的通讯</title> <style type="text/css"> body {font-size:13px} </style> <script type="text/javascript" src="http://blog.elight.cn/other/swfobject.js"></script> </head> <body> <div style="text-align:left;margin:20px 0 0 0"> <div>输入文字：<input type="text" style="width:100px" ><input type="button" value="发送" style="margin:0 0 0 20px;padding:0 10px" onclick="sendVar_Js2Swf()" /></div> <div style="margin-top:6px"><div id="swfContainer"></div></div> </div> <script type='text/javascript'> function thisMovie(movieName) { if (navigator.appName.indexOf("Microsoft") != -1) { return window[movieName]; } else { return document[movieName]; } } var swfWidth = 300; var swfHeight = 150; var flashvars = {"swfWidth":swfWidth, "swfHeight":swfHeight}; var params = {"menu": false, "allowFullScreen":true, "bgcolor":"#000000"}; var attributes = {"id":"mySwf"}; swfobject.embedSWF("http://blog.elight.cn/content/uploadfile/201609/44221473151771.swf", "swfContainer", swfWidth, swfHeight, "9.0.0", "swf/expressInstall.swf", flashvars, params, attributes); function sendVar_Js2Swf() { var inputs = document.getElementsByTagName('input'); thisMovie("mySwf").loadText(inputs[0].value); } function sendVar_Swf2Js(txt) { var inputs = document.getElementsByTagName('input'); inputs[0].value = txt; } </script> </body> </html>

Flash代码：
package { import flash.display.MovieClip; import flash.events.*; import flash.display.StageAlign; import flash.display.StageScaleMode; import flash.external.ExternalInterface; public class Test extends MovieClip { public function Test() { addEventListener(Event.ADDED_TO_STAGE, addedHandler); } private function addedHandler(e:Event):void { stage.scaleMode = StageScaleMode.NO_SCALE; stage.align = StageAlign.TOP_LEFT; var swfWidth:int = int(this.loaderInfo.parameters["swfWidth"]); var swfHeight:int = int(this.loaderInfo.parameters["swfHeight"]); if (swfWidth == 0) swfWidth = 200; if (swfHeight == 0) swfHeight = 150; mcBg.x = 0; mcBg.y = 0; mcBg.width = swfWidth; mcBg.height = swfHeight; txtLoader.x = 8; btnTest.x = 8; if (ExternalInterface.available) { ExternalInterface.addCallback("loadText", loadText); } txtLoader.text = ""; btnTest.addEventListener(MouseEvent.CLICK, btnTestClickHandler); removeEventListener(Event.ADDED_TO_STAGE, addedHandler); addEventListener(Event.REMOVED_FROM_STAGE, removedHandler); } private function loadText(txt:String):void { txtLoader.text = txt; } private function btnTestClickHandler(e:MouseEvent):void { if (ExternalInterface.available) { ExternalInterface.call("sendVar_Swf2Js", "Hello"); } } private function removedHandler(e:Event):void { removeEventListener(Event.REMOVED_FROM_STAGE, removedHandler); } } }

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网页内js与swf间的通讯

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