public void ReceiveDetections(Detector.Detections detections)
{
var qrcodes = detections.DetectedItems;
if (qrcodes.Size() != 0)
{
if (Configuration.IsScanning)
{
Configuration.IsScanning = false;
if (_vibrationOnDetected)
{
Vibrator vib = (Vibrator)_context.GetSystemService(Context.VibratorService);
vib.Vibrate(200);
}
List <BarcodeResult> barcodeResults = new List <BarcodeResult>();
for (int i = 0; i < qrcodes.Size(); i++)
{
Barcode barcode = qrcodes.ValueAt(i) as Barcode;
if (barcode == null)
{
continue;
}
var type = Methods.ConvertBarcodeResultTypes(barcode.ValueFormat);
var value = barcode.DisplayValue;
barcodeResults.Add(new BarcodeResult
{
BarcodeType = type,
DisplayValue = value
});
}
OnDetected?.Invoke(barcodeResults);
}
}
}
public static async Task <List <BarcodeResult> > ScanFromImage(byte[] imageArray)
{
UIImage image = new UIImage(NSData.FromArray(imageArray));
var visionImage = new VisionImage(image);
VisionImageMetadata metadata = new VisionImageMetadata();
VisionApi vision = VisionApi.Create();
VisionBarcodeDetector barcodeDetector = vision.GetBarcodeDetector(Configuration.BarcodeDetectorSupportFormat);
VisionBarcode[] barcodes = await barcodeDetector.DetectAsync(visionImage);
if (barcodes == null || barcodes.Length == 0)
{
return(new List <BarcodeResult>());
}
List <BarcodeResult> resultList = new List <BarcodeResult>();
foreach (var barcode in barcodes)
{
resultList.Add(new BarcodeResult
{
BarcodeType = Methods.ConvertBarcodeResultTypes(barcode.ValueType),
DisplayValue = barcode.DisplayValue,
RawValue = barcode.RawValue
});
}
return(resultList);
}
private async void DetectBarcodeActionAsync(VisionImage image)
{
if (Configuration.IsScanning)
{
try
{
VisionBarcode[] barcodes = await barcodeDetector.DetectAsync(image);
if (barcodes == null || barcodes.Length == 0)
{
return;
}
Console.WriteLine($"Successfully read barcode");
Configuration.IsScanning = false;
if (_vibrationOnDetected)
{
SystemSound.Vibrate.PlayAlertSound();
}
List <BarcodeResult> resultList = new List <BarcodeResult>();
foreach (var barcode in barcodes)
{
var points = barcode.CornerPoints.ToList().ConvertAll(nsvalue => nsvalue.PointFValue);
resultList.Add(new BarcodeResult
{
BarcodeType = Methods.ConvertBarcodeResultTypes(barcode.ValueType),
DisplayValue = barcode.DisplayValue,
Points = points.Select(p => (p.X / (double)Width, p.Y / (double)Height)).ToList()
});
}
OnDetected?.Invoke(resultList);
}
private async void DetectBarcodeActionAsync(VisionImage image)
{
if (Configuration.IsScanning)
{
try
{
VisionBarcode[] barcodes = await barcodeDetector.DetectAsync(image);
if (barcodes == null || barcodes.Length == 0)
{
return;
}
Console.WriteLine($"Successfully read barcode");
Configuration.IsScanning = false;
if (_vibrationOnDetected)
{
SystemSound.Vibrate.PlayAlertSound();
}
List <BarcodeResult> resultList = new List <BarcodeResult>();
foreach (var barcode in barcodes)
{
resultList.Add(new BarcodeResult
{
BarcodeType = Methods.ConvertBarcodeResultTypes(barcode.ValueType),
DisplayValue = barcode.DisplayValue
});
}
OnDetected?.Invoke(resultList);
}
catch (Exception exception)
{
System.Diagnostics.Debug.WriteLine(exception.Message);
}
}
}
public void ReceiveDetections(Detector.Detections detections)
{
var qrcodes = detections.DetectedItems;
if (qrcodes.Size() != 0)
{
if (Configuration.IsScanning)
{
Configuration.IsScanning = false;
if (_vibrationOnDetected)
{
Vibrator vib = (Vibrator)_context.GetSystemService(Context.VibratorService);
vib.Vibrate(200);
}
List <BarcodeResult> barcodeResults = new List <BarcodeResult>();
for (int i = 0; i < qrcodes.Size(); i++)
{
Barcode barcode = qrcodes.ValueAt(i) as Barcode;
if (barcode == null)
{
continue;
}
var type = Methods.ConvertBarcodeResultTypes(barcode.ValueFormat);
var value = barcode.DisplayValue;
barcodeResults.Add(new BarcodeResult
{
BarcodeType = type,
DisplayValue = value,
Points = barcode.CornerPoints.Select(p => (p.X / (double)detections.FrameMetadata.Width, p.Y / (double)detections.FrameMetadata.Height)).ToList()
});
public static async Task <List <BarcodeResult> > ScanFromImage(byte[] imageArray)
{
BarcodeDetector detector = new BarcodeDetector.Builder(Android.App.Application.Context)
.SetBarcodeFormats(Configuration.BarcodeFormats)
.Build();
Bitmap bitmap = BitmapFactory.DecodeByteArray(imageArray, 0, imageArray.Length);
Android.Gms.Vision.Frame frame = new Android.Gms.Vision.Frame.Builder().SetBitmap(bitmap).Build();
SparseArray qrcodes = detector.Detect(frame);
List <BarcodeResult> barcodeResults = new List <BarcodeResult>();
for (int i = 0; i < qrcodes.Size(); i++)
{
Barcode barcode = qrcodes.ValueAt(i) as Barcode;
var type = Methods.ConvertBarcodeResultTypes(barcode.ValueFormat);
var value = barcode.DisplayValue;
var rawValue = barcode.RawValue;
barcodeResults.Add(new BarcodeResult
{
BarcodeType = type,
DisplayValue = value,
RawValue = rawValue
});
}
return(barcodeResults);
}
public static async Task <List <BarcodeResult> > ScanFromImage(byte[] imageArray)
{
UIImage image = new UIImage(NSData.FromArray(imageArray));
var visionImage = new VisionImage(image);
VisionImageMetadata metadata = new VisionImageMetadata();
VisionApi vision = VisionApi.Create();
VisionBarcodeDetector barcodeDetector = vision.GetBarcodeDetector(Configuration.BarcodeDetectorSupportFormat);
VisionBarcode[] barcodes = await barcodeDetector.DetectAsync(visionImage);
if (barcodes == null || barcodes.Length == 0)
{
return(new List <BarcodeResult>());
}
List <BarcodeResult> resultList = new List <BarcodeResult>();
foreach (var barcode in barcodes)
{
var points = barcode.CornerPoints.ToList().ConvertAll(nsvalue => nsvalue.PointFValue);
resultList.Add(new BarcodeResult
{
BarcodeType = Methods.ConvertBarcodeResultTypes(barcode.ValueType),
DisplayValue = barcode.DisplayValue,
Points = points.Select(p => (p.X / (double)image.Size.Width, p.Y / (double)image.Size.Height)).ToList()
});