// This is called when a connection with the scanner has been changed.
// The scanner is usable only in the "Connected" state
public void OnConnectionStateChanged(object sender, ScannerConnectionStatus status)
{
if (status == ScannerConnectionStatus.Connected)
{
// We just connected, so now configure the device how we want it
ConfigureScannerDevice();
}
isScanning = false;
UpdateUIByConnectionState(status);
}
// Update the UI of the app (scan button, connection state label) depending on the current connection state
private void UpdateUIByConnectionState(ScannerConnectionStatus connectionStatus)
{
lblStatus.Text = " " + connectionStatus.ToString() + " ";
if (connectionStatus == ScannerConnectionStatus.Connected)
{
lblStatus.BackgroundColor = Color.FromHex("#669900");
}
else
{
lblStatus.BackgroundColor = Color.FromHex("#ff4444");
}
}
public void OnConnectionStateChanged(ScannerConnectionStatus args)
{
ConnectionStateChanged?.Invoke(this, args);
}