phonegap2.9 ios 二维码扫描

BarcodeScanner

首先在引入BarcodeScanner上面基本没啥问题,然后在config文件引入了

     <param name="ios-package" value="CDVBarcodeScanner"/>

//其中的name我也试过直接用barcodeScanner,但是没效果

然后在js文件引用

window.plugins.BarcodeScanner.scan(//这里的 BarcodeScanner我也做了相关的对应了的,还是失败了

                                   function(result) {
                                    if (result.cancelled)
                                    alert("the user cancelled the scan")
                                    else
                                    alert("we got a barcode: " + result.text)
                                    },
                                    function(error) {
                                    alert("scanning failed: " + error)
                                    }
                                    )

                                    function(result) { 
                                    if (result.cancelled) 
                                    alert("the user cancelled the scan") 
                                    else 
                                    alert("we got a barcode: " + result.text) 
                                    }, 
                                    function(error) { 
                                    alert("scanning failed: " + error) 
                                    } 
                                    ) 

然后我想请高手解惑下,哪里的问题?是phonegap的2.9版本里面修改了么?导致我引用没效果呢?

其余地方我也检查了,该加的加,该改的改,又不报错误,请高手指教下....