public async Task<BarCodeResult> ReadAsync(BarCodeScannerOptions options) {
#if __IOS__
var scanner = new MobileBarcodeScanner { UseCustomOverlay = false };
#elif ANDROID
var scanner = new MobileBarcodeScanner(Forms.Context) { UseCustomOverlay = false };
#elif WINDOWS_PHONE
var scanner = new MobileBarcodeScanner(System.Windows.Deployment.Current.Dispatcher) { UseCustomOverlay = false };
#endif
options = options ?? this.DefaultOptions;
if (!String.IsNullOrWhiteSpace(options.TopText))
scanner.TopText = options.TopText;
if (!String.IsNullOrWhiteSpace(options.BottomText))
scanner.BottomText = options.BottomText;
if (!String.IsNullOrWhiteSpace(options.FlashlightText))
scanner.FlashButtonText = options.FlashlightText;
if (!String.IsNullOrWhiteSpace(options.CancelText))
scanner.CancelButtonText = options.CancelText;
var cfg = GetXingConfig(options);
var result = await scanner.Scan(cfg);
return (result == null || String.IsNullOrWhiteSpace(result.Text)
? BarCodeResult.Fail
: new BarCodeResult(result.Text, FromXingFormat(result.BarcodeFormat))
);
}
public void Read(Action<BarCodeResult> onRead, Action<Exception> onError, BarCodeScannerOptions options) {
this.ReadAsync(options)
.ContinueWith(x => {
if (x.Exception == null)
onRead(x.Result);
else if (onError != null)
onError(x.Exception);
});
}
public void Read(Action <BarCodeResult> onRead, Action <Exception> onError, BarCodeScannerOptions options)
{
this.ReadAsync(options)
.ContinueWith(x => {
if (x.Exception == null)
{
onRead(x.Result);
}
else if (onError != null)
{
onError(x.Exception);
}
});
}
public async Task <BarCodeResult> ReadAsync(BarCodeScannerOptions options)
{
#if __IOS__
var scanner = new MobileBarcodeScanner {
UseCustomOverlay = false
};
#elif ANDROID
var scanner = new MobileBarcodeScanner(Forms.Context)
{
UseCustomOverlay = false
};
#elif WINDOWS_PHONE
var scanner = new MobileBarcodeScanner(System.Windows.Deployment.Current.Dispatcher)
{
UseCustomOverlay = false
};
#endif
options = options ?? this.DefaultOptions;
if (!String.IsNullOrWhiteSpace(options.TopText))
{
scanner.TopText = options.TopText;
}
if (!String.IsNullOrWhiteSpace(options.BottomText))
{
scanner.BottomText = options.BottomText;
}
if (!String.IsNullOrWhiteSpace(options.FlashlightText))
{
scanner.FlashButtonText = options.FlashlightText;
}
if (!String.IsNullOrWhiteSpace(options.CancelText))
{
scanner.CancelButtonText = options.CancelText;
}
var cfg = GetXingConfig(options);
var result = await scanner.Scan(cfg);
return(result == null || String.IsNullOrWhiteSpace(result.Text)
? BarCodeResult.Fail
: new BarCodeResult(result.Text, FromXingFormat(result.BarcodeFormat))
);
}
private static MobileBarcodeScanningOptions GetXingConfig(BarCodeScannerOptions opts) {
var def = ZXing.Mobile.MobileBarcodeScanningOptions.Default;
var config = new MobileBarcodeScanningOptions {
AutoRotate = def.AutoRotate,
CharacterSet = opts.CharacterSet ?? def.CharacterSet,
DelayBetweenAnalyzingFrames = opts.DelayBetweenAnalyzingFrames ?? def.DelayBetweenAnalyzingFrames,
InitialDelayBeforeAnalyzingFrames = (opts.InitialDelayBeforeAnalyzingFrames ?? def.InitialDelayBeforeAnalyzingFrames),
PureBarcode = opts.PureBarcode,
TryHarder = opts.TryHarder,
TryInverted = opts.TryInverted,
UseFrontCameraIfAvailable = opts.UseFrontCameraIfAvailable
};
if (opts.Formats != null && opts.Formats.Count > 0) {
config.PossibleFormats = opts.Formats
.Select(x => (BarcodeFormat)(int)x)
.ToList();
}
return config;
}
private static MobileBarcodeScanningOptions GetXingConfig(BarCodeScannerOptions opts)
{
var def = ZXing.Mobile.MobileBarcodeScanningOptions.Default;
var config = new MobileBarcodeScanningOptions {
AutoRotate = def.AutoRotate,
CharacterSet = opts.CharacterSet ?? def.CharacterSet,
DelayBetweenAnalyzingFrames = opts.DelayBetweenAnalyzingFrames ?? def.DelayBetweenAnalyzingFrames,
InitialDelayBeforeAnalyzingFrames = (opts.InitialDelayBeforeAnalyzingFrames ?? def.InitialDelayBeforeAnalyzingFrames),
PureBarcode = opts.PureBarcode,
TryHarder = opts.TryHarder,
TryInverted = opts.TryInverted,
UseFrontCameraIfAvailable = opts.UseFrontCameraIfAvailable
};
if (opts.Formats != null && opts.Formats.Count > 0)
{
config.PossibleFormats = opts.Formats
.Select(x => (BarcodeFormat)(int)x)
.ToList();
}
return(config);
}
public BarCodeScanner() {
this.DefaultOptions = new BarCodeScannerOptions();
}
public BarCodeScanner()
{
this.DefaultOptions = new BarCodeScannerOptions();
}