void InitializeAndStartBarcodeScanning()
{
// The scanning behavior of the barcode picker is configured through scan
// settings. We start with empty scan settings and enable a generous set
// of 1D symbologies. MatrixScan is currently only supported for 1D
// symbologies, enabling 2D symbologies will result in unexpected results.
// In your own apps, only enable the symbologies you actually need.
ScanSettings settings = ScanSettings.Create();
int[] symbologiesToEnable = new int[] {
Barcode.SymbologyEan13,
Barcode.SymbologyEan8,
Barcode.SymbologyUpca,
Barcode.SymbologyCode39,
Barcode.SymbologyCode128,
Barcode.SymbologyInterleaved2Of5,
Barcode.SymbologyUpce
};
foreach (int symbology in symbologiesToEnable)
{
settings.SetSymbologyEnabled(symbology, true);
}
// Enable MatrixScan and set the max number of barcodes that can be recognized per frame
// to some reasonable number for your use case. The max number of codes per frame does not
// limit the number of codes that can be tracked at the same time, it only limits the
// number of codes that can be newly recognized per frame.
settings.MatrixScanEnabled = true;
settings.MaxNumberOfCodesPerFrame = 10;
// Prefer the back-facing camera, if there is any.
settings.CameraFacingPreference = ScanSettings.CameraFacingBack;
barcodePicker = new BarcodePicker(this, settings);
barcodePicker.OverlayView.SetGuiStyle(ScanOverlay.GuiStyleMatrixScan);
// Set the GUI style to MatrixScan to see a visualization of the tracked barcodes. If you
// would like to visualize it yourself, set it to ScanOverlay.GuiStyleNone and update your
// visualization in the didProcess() callback.
barcodePicker.OverlayView.SetGuiStyle(ScanOverlay.GuiStyleMatrixScan);
// When using MatrixScan vibrating is often not desired.
barcodePicker.OverlayView.SetVibrateEnabled(false);
// Register listener, in order to be notified about relevant events
// (e.g. a successfully scanned bar code).
barcodePicker.SetOnScanListener(this);
// Register a process frame listener to be able to reject tracked codes.
barcodePicker.SetProcessFrameListener(this);
// Set listener for the scan event.
barcodePicker.SetOnScanListener(this);
// Show the scan user interface
SetContentView(barcodePicker);
}