Flash和Javascript可以通信吗？

Question

我正在开发一个使用闪存套接字的聊天应用程序.我不想在flash中编写整个界面,所以我希望只使用flash与socketserver通信并调用js来修改dom.

可以这样做吗？

Answer 1

要从Flash调用JavaScript函数,请使用ExternalInterface.callActionScript中的函数:

import flash.external.ExternalInterface;

// Call a JavaScript function
ExternalInterface.call("your_javascript_function");

// Get a return value from a JavaScript function
var x:int = ExternalInterface.call("get_x");

// Pass an argument to a JavaScript function
var retval:int = ExternalInterface.call("some_js_function", "the-argument");

要从JavaScript调用ActionScript函数,请首先ExternalInterface.addCallback在ActionScript中使用该函数:

// "methodName" is the method to call in JavaScript
// instanceObject.realMethod is the method that will be triggered
var successful = ExternalInterface.addCallback("methodName",
                                               instanceObject,
                                               realMethod);

然后,在JavaScript中获取SWFObject的句柄并调用ActionScript方法,如下所示:

function makeActionScriptCall() {
    var flash = document.getElementById(movieName);
    flash.methodName(parametersIfAny);
}

有关更多信息,请参阅:

• http://livedocs.adobe.com/flash/9.0/ActionScriptLangRefV3/flash/external/ExternalInterface.html
• http://codingrecipes.com/calling-a-javascript-function-from-actionscript-3-flash
• http://bytes.com/topic/flash/answers/694359-how-do-i-access-flash-function-using-javascript

Answer 2

使用ExternalInterface对象让ActionScript能够调用JavaScript函数,反之亦然.