swfobject未定义错误

Question

我试图检测闪存支持，并试图按照下面的答案进行下去：跨浏览器Javascript中的Flash检测

我的代码如下所示，但我总是得到相同的错误: swfobject未定义。我不应该明白这一点，因为我正在支持闪存(chrome和firefox)的浏览器上尝试。

if(swfobject){
    console.log("you have swfobject.");

    if(swfobject.hasFlashPlayerVersion("1")){
        console.log("You have flash!");
    }
    else{
        console.log("You do not flash :(");
    }
}else{
    console.log("you don't have swfobject");
}

这是最新浏览器的问题吗？还有其他方法来检测吗？

Answer 1

闪存上的MDN页面带领我走过了一条完全不同的道路：

if(navigator.mimeTypes["application/x-shockwave-flash"]){
    var plugin = navigator.mimeTypes["application/x-shockwave-flash"].enabledPlugin;
    var description = plugin.description;
    var versionArray = description.match(/[\d.]+/g);
    var flashVersionOSXScriptable = 12;
    var flashVersion = parseInt(versionArray[0]);

    if(navigator.userAgent.indexOf("Mach-O")==-1){
        if(flashVersion >= flashVersionOSXScriptable){
            console.log("you have flash");
        }else{
            console.log("you don't have flash");
        }
    }
}else{
    console.log("you don't have flash");
}

Answer 2

如果未定义swfobject，则丢失所需的JavaScript文件。您可以通过CDN在这里加载https://ajax.googleapis.com/ajax/libs/swfobject/2.2/swfobject.js

Answer 3

尝试检查typeof，object，如下所示：

if(typeof swfobject != "undefined"){ //Check if type of the object is undefined

    console.log("you have swfobject.");

    if(swfobject.hasFlashPlayerVersion("1")){
        console.log("You have flash!");
    }
    else{
        console.log("You do not flash :(");
    }
}else{
    console.log("you don't have swfobject");
}