public override void ViewDidLoad()
{
base.ViewDidLoad();
// The scanning behavior of the barcode picker is configured through scan
// settings. We start with empty scan settings and enable a very generous
// set of symbologies. In your own apps, only enable the symbologies you
// actually need.
ScanSettings settings = ScanSettings.DefaultSettings();
NSSet symbologiesToEnable = new NSSet(
Symbology.EAN13,
Symbology.EAN8,
Symbology.UPC12,
Symbology.UPCE,
Symbology.Datamatrix,
Symbology.QR,
Symbology.Code39,
Symbology.Code128,
Symbology.ITF
);
settings.EnableSymbologies(symbologiesToEnable);
// Enable and set the restrict active area. This will make sure that codes are only scanned in a very thin band in the center of the image.
settings.SetActiveScanningArea(new CoreGraphics.CGRect(0, 0.48, 1, 0.04));
// Setup the barcode scanner
picker = new BarcodePicker(settings);
picker.OverlayView.ShowToolBar(false);
// Add delegate for the scan event. We keep references to the
// delegates until the picker is no longer used as the delegates are softly
// referenced and can be removed because of low memory.
scanDelegate = new PickerScanDelegate();
picker.ScanDelegate = scanDelegate;
AddChildViewController(picker);
picker.View.Frame = View.Bounds;
Add(picker.View);
picker.DidMoveToParentViewController(this);
// Modify the GUI style to have a "laser" line instead of a square viewfinder.
picker.OverlayView.GuiStyle = GuiStyle.Laser;
// Start scanning in paused state.
picker.StartScanning(true);
showAimAndScanButton();
}
void InitializeBarcodeScanning()
{
ScanSettings settings = ScanSettings.Create();
int[] symbologiesToEnable =
{
Barcode.SymbologyEan13,
Barcode.SymbologyEan8,
Barcode.SymbologyUpca,
Barcode.SymbologyUpce,
Barcode.SymbologyDataMatrix,
Barcode.SymbologyQr,
Barcode.SymbologyCode39,
Barcode.SymbologyCode128,
Barcode.SymbologyInterleaved2Of5
};
foreach (int symbology in symbologiesToEnable)
{
settings.SetSymbologyEnabled(symbology, true);
}
// Enable and set the restrict active area. This will make sure that codes are only scanned in a very thin band in the center of the image.
settings.SetActiveScanningArea(ScanSettings.OrientationPortrait, new RectF(0f, 0.48f, 1f, 0.52f));
// Setup the barcode scanner
barcodePicker = new BarcodePicker(this, settings);
// Add listener for the scan event. We keep references to the
// delegates until the picker is no longer used as the delegates are softly
// referenced and can be removed because of low memory.
barcodePicker.SetOnScanListener(this);
// Modify the GUI style to have a "laser" line instead of a square viewfinder.
barcodePicker.OverlayView.SetGuiStyle(ScanOverlay.GuiStyleLaser);
// Start scanning in paused state.
barcodePicker.StartScanning(true);
(FindViewById(Resource.Id.picker_container) as FrameLayout).AddView(barcodePicker, 0);
GrantCameraPermissionsThenStartScanning();
}
