private async Task scanBarcode()
{
//Creates the barcode scanner and adds camera
var options = new ZXing.Mobile.MobileBarcodeScanningOptions
{
CameraResolutionSelector = HandleCameraResolutionSelectorDelegate
};
options.PossibleFormats = new List <ZXing.BarcodeFormat>()
{
ZXing.BarcodeFormat.EAN_8, ZXing.BarcodeFormat.EAN_13
};
var scanner = new ZXing.Mobile.MobileBarcodeScanner(this);
scanner.AutoFocus();
//Grabs the scanner result and displays it in the new page
//The new page is the itemController
var result = await scanner.Scan(options, true);
string code = result.Text;
if (result != null)
{
ItemController controller = new ItemController();
this.NavigationController.PushViewController(controller, true);
controller.barCodeLableText = code;
controller.itemNameText = "Bandage, Adhsv Shr Strp 1x3 (100/bx 24bx/cs) Mgm16";
controller.itemNumberText = "15";
//controller.addLabelText = query;
Console.WriteLine("Scanned Barcode: " + result.Text);
}
}
public async Task <string> ScanAsync()
{
// https://forums.xamarin.com/discussion/comment/284749/#Comment_284749
var optionsCustom = new MobileBarcodeScanningOptions()
{
AutoRotate = false,
TryInverted = true,
TryHarder = true,
PossibleFormats = new List <BarcodeFormat> {
BarcodeFormat.QR_CODE
},
// CharacterSet = "ISO-8859-1",
CameraResolutionSelector = HandleCameraResolutionSelectorDelegate
// DisableAutofocus = false
};
var scanner = new ZXing.Mobile.MobileBarcodeScanner()
{
TopText = "QR Code scannen",
BottomText = "Bitte warten",
CancelButtonText = "Abbrechen"
};
ZXing.Result scanResult = null;
// https://forums.xamarin.com/discussion/72077/zxing-barcode-reader-autofocus
Thread autofocusThread = new Thread(new ThreadStart(delegate
{
while (scanResult == null)
{
scanner.AutoFocus();
Thread.Sleep(2000);
}
}));
autofocusThread.Start();
// scanner.AutoFocus();
try
{
scanResult = await scanner.Scan(optionsCustom);
}
catch (Exception)
{
throw;
}
finally
{
if (autofocusThread.IsAlive)
{
autofocusThread.Abort();
}
}
return(scanResult.Text);
}
public async void CallWebViewSendData()
{
var scanner = new ZXing.Mobile.MobileBarcodeScanner();
scanner.AutoFocus();
var options = new ZXing.Mobile.MobileBarcodeScanningOptions();
options.DelayBetweenAnalyzingFrames = 1000;
scanner.TopText = "Scanning..";
var result = await scanner.Scan(options);
if (result != null)
{
wv.LoadUrl("javascript:msg(" + @"'" + result.Text + @"'" + ");");
}
}
private async Task ShowQRCodeScannerAsync()
{
var options = new ZXing.Mobile.MobileBarcodeScanningOptions();
options.PossibleFormats = new List <ZXing.BarcodeFormat>()
{
ZXing.BarcodeFormat.QR_CODE
};
var scanner = new ZXing.Mobile.MobileBarcodeScanner(this);
scanner.TopText = "Scan QR Code from lottiefiles.com";
scanner.AutoFocus();
var result = await scanner.Scan(options, true);
if (result != null)
{
LoadAnimationFromUrl(result.Text);
}
}
private async void QRScanButton_Click(object sender, EventArgs e)
{
MobileBarcodeScanner.Initialize(this.Activity.Application);
var options = new ZXing.Mobile.MobileBarcodeScanningOptions();
options.PossibleFormats = new List <ZXing.BarcodeFormat>()
{
ZXing.BarcodeFormat.QR_CODE
};
var scanner = new ZXing.Mobile.MobileBarcodeScanner();
scanner.AutoFocus();
scanner.UseCustomOverlay = true;
scanner.CustomOverlay = GetQRCodeCustomOverlay();
var result = await scanner.Scan(options);
if (result != null)
{
LoadUrl(result.Text);
}
}