public async Task<BarCodeResult> Read(BarCodeReadConfiguration config, CancellationToken cancelToken)
{
config = config ?? BarCodeReadConfiguration.Default;
var scanner = new MobileBarcodeScanner(Forms.Context) { UseCustomOverlay = false };
cancelToken.Register(scanner.Cancel);
var result = await scanner.Scan(this.GetXingConfig(config));
return (result == null || String.IsNullOrWhiteSpace(result.Text)
? BarCodeResult.Fail
: new BarCodeResult(result.Text, FromXingFormat(result.BarcodeFormat))
);
}
public async Task<BarCodeResult> Read(BarCodeReadConfiguration config, CancellationToken cancelToken)
{
config = config ?? BarCodeReadConfiguration.Default;
var controller = ((UIViewController)((ExtendedNavigationPage)App.GameNavigation).ViewController);
var scanner = new MobileBarcodeScanner(controller);
scanner.UseCustomOverlay = true;
scanner.CustomOverlay = new BarCodeScannerOverlay(new CGRect(0, 0, (nfloat)App.GameNavigation.Bounds.Width, (nfloat)App.GameNavigation.Bounds.Height), "", "", config.CancelText, config.FlashlightText, () => scanner.Cancel(), () => scanner.ToggleTorch());
scanner.CancelButtonText = config.CancelText;
scanner.FlashButtonText = config.FlashlightText;
cancelToken.Register(scanner.Cancel);
var result = await scanner.Scan(this.GetXingConfig(config));
return (result == null || String.IsNullOrWhiteSpace(result.Text)
? BarCodeResult.Fail
: new BarCodeResult(result.Text, FromXingFormat(result.BarcodeFormat))
);
}
private MobileBarcodeScanningOptions GetXingConfig(BarCodeReadConfiguration cfg)
{
var opts = new MobileBarcodeScanningOptions
{
AutoRotate = cfg.AutoRotate,
CharacterSet = cfg.CharacterSet,
DelayBetweenAnalyzingFrames = cfg.DelayBetweenAnalyzingFrames,
InitialDelayBeforeAnalyzingFrames = cfg.InitialDelayBeforeAnalyzingFrames,
PureBarcode = cfg.PureBarcode,
TryHarder = cfg.TryHarder,
TryInverted = cfg.TryInverted,
UseFrontCameraIfAvailable = cfg.UseFrontCameraIfAvailable
};
if (cfg.Formats != null && cfg.Formats.Count > 0)
{
opts.PossibleFormats = cfg.Formats
.Select(x => (BarcodeFormat)(int)x)
.ToList();
}
return opts;
}
/// <summary>
/// Handles the scanner click.
/// </summary>
/// <param name="sender">Sender of event.</param>
private async void HandleScannerClicked(object sender)
{
App.Click();
var scanner = DependencyService.Get<IBarCodeScanner>();
var config = new BarCodeReadConfiguration();
config.CancelText = Catalog.GetString("Cancel");
config.FlashlightText = Catalog.GetString("Flash");
var result = await scanner.Read(config, System.Threading.CancellationToken.None);
if (result.Success)
{
InputText = result.Code;
}
}