public SpecificSymbologyViewModel(string symbologyIdentifier)
{
symbologyIdentifier.RequireNotNullOrWhiteSpace(nameof(symbologyIdentifier));
this.symbologyDescription = SymbologyDescription.ForIdentifier(symbologyIdentifier);
this.symbology = this.symbologyDescription.Symbology;
}
public void OnBarcodeScanned(BarcodeCapture barcodeCapture, BarcodeCaptureSession session, IFrameData frameData)
{
if (!session.NewlyRecognizedBarcodes.Any())
{
return;
}
Barcode barcode = session.NewlyRecognizedBarcodes[0];
// Stop recognizing barcodes for as long as we are displaying the result. There won't be any new results until
// the capture mode is enabled again. Note that disabling the capture mode does not stop the camera, the camera
// continues to stream frames until it is turned off.
barcodeCapture.Enabled = false;
// If you are not disabling barcode capture here and want to continue scanning, consider
// setting the codeDuplicateFilter when creating the barcode capture settings to around 500
// or even -1 if you do not want codes to be scanned more than once.
// Get the human readable name of the symbology and assemble the result to be shown.
SymbologyDescription description = new SymbologyDescription(barcode.Symbology);
string result = "Scanned: " + barcode.Data + " (" + description.ReadableName + ")";
if (MessageService == null)
{
MessageService = DependencyService.Get <IMessageService>();
}
MessageService.ShowAsync(result, () => barcodeCapture.Enabled = true);
}
public IEnumerable <SymbologySettingsItem> GetItems()
{
return(SymbologyDescription.All().Select(description =>
{
return new SymbologySettingsItem(description, this.settingsManager.IsSymbologyEnabled(description.Symbology));
}));
}
public void OnBarcodeScanned(BarcodeCapture barcodeCapture, BarcodeCaptureSession session, IFrameData frameData)
{
var barcode = session?.NewlyRecognizedBarcodes.FirstOrDefault();
if (barcode == null || string.IsNullOrEmpty(barcode.Data))
{
return;
}
// Stop recognizing barcodes for as long as we are displaying the result. There won't be any new
// results until the capture mode is enabled again. Note that disabling the capture mode does
// not stop the camera, the camera continues to stream frames until it is turned off.
this.barcodeCapture.Enabled = false;
// If you are not disabling barcode capture here and want to continue scanning, consider
// setting the codeDuplicateFilter when creating the barcode capture settings to around 500
// or even -1 if you do not want codes to be scanned more than once.
// Get the human readable name of the symbology and assemble the result to be shown.
string symbology = SymbologyDescription.Create(barcode.Symbology).ReadableName;
string result = string.Format("Scanned {0} ({1})", barcode.Data, symbology);
this.ShowResult(result);
// Dispose the frame when you have finished processing it. If the frame is not properly disposed,
// different issues could arise, e.g. a frozen, non-responsive, or "severely stuttering" video feed.
frameData.Dispose();
}
public async Task EnableAllSymbologies(bool enabled)
{
foreach (SymbologyDescription description in SymbologyDescription.All())
{
this.BarcodeCaptureSettings.EnableSymbology(description.Symbology, enabled);
}
await this.ApplyBarcodeCaptureSettingsAsync();
}
public void OnSessionUpdated(BarcodeTracking barcodeCapture, BarcodeTrackingSession session, IFrameData frameData)
{
lock (this.scanResults)
{
foreach (var trackedBarcode in session.AddedTrackedBarcodes)
{
this.scanResults.Add(new ScanResult
{
Data = trackedBarcode.Barcode.Data,
Symbology = SymbologyDescription.Create(trackedBarcode.Barcode.Symbology).ReadableName
});
}
}
}
public void OnBarcodeScanned(BarcodeCapture barcodeCapture, BarcodeCaptureSession session, IFrameData frameData)
{
if (session.NewlyRecognizedBarcodes.Any())
{
if (!this.ContinuousScanningEnabled)
{
this.PauseScanning();
}
Barcode barcode = session.NewlyRecognizedBarcodes[0];
using SymbologyDescription description = SymbologyDescription.Create(barcode.Symbology);
this.listener?.ShowDialog(description.ReadableName, barcode.Data, barcode.SymbolCount);
}
}
public void OnBarcodeScanned(BarcodeCapture barcodeCapture, BarcodeCaptureSession session, IFrameData frameData)
{
if (session.NewlyRecognizedBarcodes.Count == 0)
{
return;
}
var barcode = session.NewlyRecognizedBarcodes[0];
// If the code scanned doesn't start with "09:", we will just ignore it and continue
// scanning.
if (barcode.Data?.StartsWith("09:") == false)
{
// We temporarily change the brush, used to highlight recognized barcodes, to a
// transparent brush.
this.overlay.Brush = Brush.TransparentBrush;
return;
}
// If the code is recognized, we want to make sure to use a brush to highlight
// the code.
this.overlay.Brush = this.highlightingBrush;
// We also want to emit a feedback (vibration and, if enabled, sound).
this.feedback.Emit();
// Stop recognizing barcodes for as long as we are displaying the result. There won't be any new
// results until the capture mode is enabled again. Note that disabling the capture mode does
// not stop the camera, the camera continues to stream frames until it is turned off.
this.barcodeCapture.Enabled = false;
// If you are not disabling barcode capture here and want to continue scanning, consider
// setting the codeDuplicateFilter when creating the barcode capture settings to around 500
// or even -1 if you do not want codes to be scanned more than once.
// Get the human readable name of the symbology and assemble the result to be shown.
string symbology = SymbologyDescription.Create(barcode.Symbology).ReadableName;
string result = string.Format("Scanned {0} ({1})", barcode.Data, symbology);
this.ShowResult(result);
// Dispose the frame when you have finished processing it. If the frame is not properly disposed,
// different issues could arise, e.g. a frozen, non-responsive, or "severely stuttering" video feed.
frameData.Dispose();
}
public void OnBarcodeScanned(BarcodeCapture barcodeCapture, BarcodeCaptureSession session, IFrameData data)
{
if (session.NewlyRecognizedBarcodes.Count == 0)
{
return;
}
var barcode = session.NewlyRecognizedBarcodes[0];
// If the code scanned doesn't start with "09:", we will just ignore it and continue
// scanning.
if (barcode.Data?.StartsWith("09:") == false)
{
// We temporarily change the brush, used to highlight recognized barcodes, to a
// transparent brush.
overlay.Brush = Brush.TransparentBrush;
return;
}
// If the code is recognized, we want to make sure to use a brush to highlight the code.
overlay.Brush = this.highlightingBrush;
// We also want to emit a feedback (vibration and, if enabled, sound).
feedback.Emit();
// Stop recognizing barcodes for as long as we are displaying the result. There won't be any
// new results until the capture mode is enabled again. Note that disabling the capture mode
// does not stop the camera, the camera continues to stream frames until it is turned off.
barcodeCapture.Enabled = false;
// If you are not disabling barcode capture here and want to continue scanning, consider
// setting the codeDuplicateFilter when creating the barcode capture settings to around 500
// or even -1 if you do not want codes to be scanned more than once.
// Get the human readable name of the symbology and assemble the result to be shown.
using (var description = SymbologyDescription.Create(barcode.Symbology))
{
var result = "Scanned: " + barcode.Data + " (" + description.ReadableName + ")";
RunOnUiThread(() => ShowResult(result));
}
}
public void OnBarcodeScanned(BarcodeCapture barcodeCapture, BarcodeCaptureSession session, IFrameData frameData)
{
if (!session.NewlyRecognizedBarcodes.Any())
{
return;
}
Barcode barcode = session.NewlyRecognizedBarcodes[0];
// If the code scanned doesn't start with "09:", we will just ignore it and continue
// scanning.
if (barcode.Data?.StartsWith("09:") == false)
{
this.RejectedCode?.Invoke(this, EventArgs.Empty);
return;
}
this.AcceptedCode?.Invoke(this, EventArgs.Empty);
// We also want to emit a feedback (vibration and, if enabled, sound).
this.Feedback.Emit();
// Stop recognizing barcodes for as long as we are displaying the result. There won't be any new results until
// the capture mode is enabled again. Note that disabling the capture mode does not stop the camera, the camera
// continues to stream frames until it is turned off.
barcodeCapture.Enabled = false;
// If you are not disabling barcode capture here and want to continue scanning, consider
// setting the codeDuplicateFilter when creating the barcode capture settings to around 500
// or even -1 if you do not want codes to be scanned more than once.
// Get the human readable name of the symbology and assemble the result to be shown.
SymbologyDescription description = new SymbologyDescription(barcode.Symbology);
string result = "Scanned: " + barcode.Data + " (" + description.ReadableName + ")";
if (MessageService == null)
{
MessageService = DependencyService.Get <IMessageService>();
}
MessageService.ShowAsync(result, () => barcodeCapture.Enabled = true);
}
public void ShowDialog(Barcode barcode)
{
string compositeType = string.Empty;
string data = barcode.Data;
if (!string.IsNullOrEmpty(barcode.AddOnData))
{
data += " " + barcode.AddOnData;
}
if (!string.IsNullOrEmpty(barcode.CompositeData))
{
data += " " + barcode.CompositeData;
compositeType = this.StringFromCompositeFlag(barcode.CompositeFlag);
}
using SymbologyDescription description = SymbologyDescription.Create(barcode.Symbology);
string symbology = description.ReadableName;
int symbolCount = barcode.SymbolCount;
string text;
if (string.IsNullOrEmpty(compositeType))
{
string textFormat = this.RequireContext().GetString(Resource.String.result_parametrised);
text = string.Format(textFormat, symbology, data, symbolCount);
}
else
{
string textFormat = this.RequireContext().GetString(Resource.String.cc_result_parametrised);
text = string.Format(textFormat, compositeType, symbology, data, symbolCount);
}
if (this.viewModel.ContinuousScanningEnabled)
{
this.Activity.RunOnUiThread(() => this.ShowDialogForContinuousScanning(text));
}
else
{
this.Activity.RunOnUiThread(() => this.ShowDialogForOneShotScanning(text));
}
}
public void OnBarcodeScanned(BarcodeCapture barcodeCapture, BarcodeCaptureSession session, IFrameData frameData)
{
if (!session.NewlyRecognizedBarcodes.Any())
{
return;
}
Barcode barcode = session.NewlyRecognizedBarcodes[0];
// Stop recognizing barcodes for as long as we are displaying the result. There won't be any new results until
// the capture mode is enabled again. Note that disabling the capture mode does not stop the camera, the camera
// continues to stream frames until it is turned off.
barcodeCapture.Enabled = false;
// If you are not disabling barcode capture here and want to continue scanning, consider
// setting the codeDuplicateFilter when creating the barcode capture settings to around 500
// or even -1 if you do not want codes to be scanned more than once.
// Get the human readable name of the symbology and assemble the result to be shown.
string symbology = SymbologyDescription.Create(barcode.Symbology).ReadableName;
string result = "Scanned: " + barcode.Data + " (" + symbology + ")";
RunOnUiThread(() => ShowResults(result));
}
public static string ReadableName(this Symbology symbology) => SymbologyDescription.Create(symbology).ReadableName;
public SymbologySettingsDataSource(IDataSourceListener dataSourceListener, SymbologySettings symbologySettings)
{
this.DataSourceListener = dataSourceListener;
this.symbologySettings = symbologySettings;
this.symbologyDescription = SymbologyDescription.Create(symbologySettings.Symbology);
}
public bool IsSymbologyEnabled(string symbologyIdentifier)
{
Symbology symbology = SymbologyDescription.ForIdentifier(symbologyIdentifier).Symbology;
return(this.IsSymbologyEnabled(symbology));
}
public SymbologySettingsItem(SymbologyDescription symbologyDescription, bool enabled)
{
this.SymbologyDescription = symbologyDescription.RequireNotNull(nameof(symbologyDescription));
this.Enabled = enabled;
}
public ScanResult(Barcode barcode)
{
using var symbologyDescription = SymbologyDescription.Create(barcode.Symbology);
ReadableName = symbologyDescription.ReadableName;
Data = barcode.Data;
}