Question

我正在尝试使用Xamarin和ZXing实现条形码扫描应用。不幸的是，iPhone和iPad上的前置摄像头扫描效果不佳。任何建议或帮助赞赏

Answer 1

您的InitializeScanner方法可以执行如下扫描程序初始化并调用开始扫描，在我的情况下，我想支持条形码和QR码。如果您不想支持，可以删除扫描选项QRCode。当扫描程序识别代码并返回唯一字符串时，初始化时会调用回调。 扫描仪选项具有属性UseFrontCameraIfAvailable

 var mobileBarcodeScanningOptions= new ZXing.Mobile.MobileBarcodeScanningOptions(); 
        mobileBarcodeScanningOptions.UseFrontCameraIfAvailable = true;
        mobileBarcodeScanningOptions.PossibleFormats = new List<ZXing.BarcodeFormat>() {
        ZXing.BarcodeFormat.CODE_128,
        ZXing.BarcodeFormat.CODE_93,
        ZXing.BarcodeFormat.CODE_39,
        ZXing.BarcodeFormat.PDF_417,
        ZXing.BarcodeFormat.QR_CODE
        };
        mobileBarcodeScanningOptions.AutoRotate = false;
        mobileBarcodeScanningOptions.TryHarder = true;
        mobileBarcodeScanningOptions.TryInverted = false;
       var scanview = new ZXingScannerView(new CGRect(0, 0, View.Frame.Width, View.Frame.Height)) { }
        scanview.AutoFocus();

        //code to add your scanview in your main view
        scanview.StartScanning(MyScanResultHandler, mobileBarcodeScanningOptions);


 //After scanning code, scanner callbacks below method

    private void MyScanResultHandler(Result obj)
    {
        if (obj != null)
        {
            //obj.Text gives you value of code in string which you can use further in your application
        }          

    }

Xamarin iOS ZXing使用前置摄像头读取条码

1 个答案: