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BarcodeScanAndCountComponentController.cs
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BarcodeScanAndCountComponentController.cs
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using System.Text;
using ScanbotBarcodeSDK.iOS;
namespace BarcodeSDK.NET.iOS.Controllers
{
public class BarcodeScanAndCountComponentController : UIViewController
{
UIButton flash;
UIButton start;
UIButton continueScanning;
UILabel resultLabel;
private SBSDKBarcodeScanAndCountViewController scannerController;
public override void ViewDidLoad()
{
base.ViewDidLoad();
Title = "SCAN AND COUNT COMPONENT";
scannerController = new SBSDKBarcodeScanAndCountViewController(this, View);
scannerController.AcceptedBarcodeTypes = BarcodeTypes.Instance.AcceptedTypes;
scannerController.AdditionalDetectionParameters = new SBSDKBarcodeAdditionalParameters
{
CodeDensity = SBSDKBarcodeDensity.High
};
scannerController.EngineMode = SBSDKBarcodeEngineMode.NextGen;
scannerController.PolygonStyle.PolygonDrawingEnabled = true;
scannerController.PolygonStyle.PolygonColor = UIColor.Yellow;
scannerController.Delegate = new BarcodeDetectionDelegate(
HandleDidStartScanning,
HandleDidDetectBarcodes);
scannerController.ShutterButtonHidden = true;
flash = new UIButton() { BackgroundColor = UIColor.Black };
start = new UIButton() { BackgroundColor = UIColor.Black };
continueScanning = new UIButton() { BackgroundColor = UIColor.Black, Hidden = true };
resultLabel = new UILabel() { Lines = 0, MinimumFontSize = 10, TextColor = UIColor.White, BackgroundColor = UIColor.Black, Hidden = true };
flash.SetTitle("Flash", UIControlState.Normal);
start.SetTitle("Start", UIControlState.Normal);
continueScanning.SetTitle("Continue", UIControlState.Normal);
View.AddSubviews(resultLabel, flash, start, continueScanning);
flash.TranslatesAutoresizingMaskIntoConstraints = false;
start.TranslatesAutoresizingMaskIntoConstraints = false;
continueScanning.TranslatesAutoresizingMaskIntoConstraints = false;
resultLabel.TranslatesAutoresizingMaskIntoConstraints = false;
nfloat buttonWidth = 100;
NSLayoutConstraint.ActivateConstraints(new[]
{
flash.LeadingAnchor.ConstraintEqualTo(View.LeadingAnchor),
flash.BottomAnchor.ConstraintEqualTo(View.LayoutMarginsGuide.BottomAnchor),
flash.WidthAnchor.ConstraintEqualTo(buttonWidth),
start.CenterXAnchor.ConstraintEqualTo(View.CenterXAnchor),
start.BottomAnchor.ConstraintEqualTo(View.LayoutMarginsGuide.BottomAnchor),
start.WidthAnchor.ConstraintEqualTo(buttonWidth),
continueScanning.TrailingAnchor.ConstraintEqualTo(View.TrailingAnchor),
continueScanning.BottomAnchor.ConstraintEqualTo(View.LayoutMarginsGuide.BottomAnchor),
continueScanning.WidthAnchor.ConstraintEqualTo(buttonWidth),
});
flash.TouchUpInside += Flash_TouchUpInside;
start.TouchUpInside += Start_TouchUpInside;
continueScanning.TouchUpInside += ContinueScanning_TouchUpInside;
}
private void Flash_TouchUpInside(object sender, EventArgs e)
{
scannerController.FlashLightEnabled = !scannerController.FlashLightEnabled;
}
private void Start_TouchUpInside(object sender, EventArgs e)
{
scannerController.RecognitionEnabled = true;
scannerController?.ScanAndCount();
start.Hidden = true;
continueScanning.Hidden = false;
}
private void ContinueScanning_TouchUpInside(object sender, EventArgs e)
{
scannerController?.ContinueScanning();
start.Hidden = false;
continueScanning.Hidden = true;
}
private void HandleDidDetectBarcodes(SBSDKBarcodeScannerResult[] codes)
{
var sb = new StringBuilder();
foreach(var code in codes)
{
var alreadyCountedBarcode = scannerController.CountedBarcodes?
.FirstOrDefault(item => item.Code.Type == code.Type &&
item.Code.RawTextString == code.RawTextString);
alreadyCountedBarcode.ScanCount += 1;
alreadyCountedBarcode.Code.DateOfDetection = code.DateOfDetection;
}
foreach(var code in scannerController.CountedBarcodes)
{
sb.Append($"{code.Code.RawTextString} - {code.ScanCount} \n");
}
resultLabel.Text = sb.ToString();
resultLabel.Hidden = false;
}
private void HandleDidStartScanning()
{
}
private class BarcodeDetectionDelegate : SBSDKBarcodeScanAndCountViewControllerDelegate
{
private Action _didStartScanningAction;
private Action<SBSDKBarcodeScannerResult[]> _didDetectBarcodesAction;
public BarcodeDetectionDelegate(
Action didStartScanningAction,
Action<SBSDKBarcodeScannerResult[]> didDetectBarcodesAction)
{
_didStartScanningAction = didStartScanningAction;
_didDetectBarcodesAction = didDetectBarcodesAction;
}
public override void DidStartScanning(SBSDKBarcodeScanAndCountViewController controller)
{
_didStartScanningAction?.Invoke();
}
public override void DidDetectBarcodes(SBSDKBarcodeScanAndCountViewController controller, SBSDKBarcodeScannerResult[] codes)
{
_didDetectBarcodesAction?.Invoke(codes);
}
public override UIView OverlayForBarcode(SBSDKBarcodeScanAndCountViewController controller, SBSDKBarcodeScannerResult code)
{
return new UIImageView(image: UIImage.CheckmarkImage);
}
}
}
}