public bool ShouldAutocropCapturedImageWithModeManualShutter(SBSDKScannerViewController controller, SBSDKShutterMode mode, bool manual)
{
// Here you control whether to automatically crop the document image or not,
// depending on the current shutter mode and how the shutter was released: manually or automatically.
// Return true, if the detected polygon should be applied to the captured document image, false otherwise.
return(true);
}
public void DidCaptureImageWithDetectedPolygon(SBSDKScannerViewController controller, UIImage originalImage, SBSDKPolygon polygon, SBSDKLensCameraProperties properties)
{
// Here we get the original (uncropped) image from the camera and an optional polygon that was detected on the image.
if (cameraDelegate != null)
{
cameraDelegate.DidCaptureOriginalImage(originalImage);
}
}
public UIView GetViewForDetectionStatus(SBSDKScannerViewController controller, SBSDKDocumentDetectionStatus status)
{
// Alternative method to "scannerController:localizedTextForDetectionStatus:".
// Here you can return a custom view that you want to use to visualize the latest detection status.
var label = new SBSDKDetectionStatusLabel();
label.BackgroundColor = UIColor.Red;
label.TextColor = UIColor.White;
if (scannerViewController.EnergySavingActive)
{
label.Text = "Energy Saving active.\nMove your device.";
label.BackgroundColor = UIColor.Orange;
}
else
{
switch (status)
{
case SBSDKDocumentDetectionStatus.Ok:
label.Text = "Don't move.\nCapturing...";
label.BackgroundColor = UIColor.Green;
break;
case SBSDKDocumentDetectionStatus.OK_SmallSize:
label.Text = "Move closer";
break;
case SBSDKDocumentDetectionStatus.OK_BadAngles:
label.Text = "Perspective";
break;
case SBSDKDocumentDetectionStatus.Error_NothingDetected:
label.Text = "No Document";
break;
case SBSDKDocumentDetectionStatus.Error_Noise:
label.Text = "Background too noisy";
break;
case SBSDKDocumentDetectionStatus.Error_Brightness:
label.Text = "Poor light";
break;
case SBSDKDocumentDetectionStatus.OK_BadAspectRatio:
label.Text = "Wrong aspect ratio.\n Rotate your device";
break;
default:
return(null);
}
}
label.SizeToFit();
return(label);
}
public UIColor ScannerControllerPolygonColorForDetectionStatus(SBSDKScannerViewController controller, SBSDKDocumentDetectionStatus status)
{
// If the detector has found an acceptable polygon we show it with green color
if (status == SBSDKDocumentDetectionStatus.Ok)
{
return(UIColor.Green);
}
return(UIColor.Red);
}
public void ScannerControllerDidCaptureDocumentImage(SBSDKScannerViewController controller, UIImage documentImage)
{
// Here we get the perspective corrected and cropped document image after the shutter was (auto)released.
if (cameraDelegate != null)
{
cameraDelegate.DidCaptureDocumentImage(documentImage);
}
NavigationController.PopToRootViewController(true);
}
public void DidCaptureDocumentImage(SBSDKScannerViewController controller, UIImage documentImage)
{
// Here we get the cropped and perspective corrected document image.
if (cameraDelegate != null)
{
cameraDelegate.DidCaptureDocumentImage(documentImage);
}
NavigationController.PopToRootViewController(true);
}
public void ScannerControllerDidCaptureImageWithDetectedPolygon(SBSDKScannerViewController controller, UIImage image, SBSDKPolygon polygon, SBSDKLensCameraProperties properties)
{
// Here we get the full image from the camera and an optional polygon that was detected on the image.
//this.detectedPolygon = polygon;
if (cameraDelegate != null)
{
cameraDelegate.DidCaptureOriginalImage(image);
}
}
public override void ViewDidLoad()
{
base.ViewDidLoad();
var screenSize = UIScreen.MainScreen.Bounds.Size;
// Create a view as container for bottom buttons:
var buttonsContainerHeight = 120;
bottomButtonsContainer = new UIView(new CGRect(0, screenSize.Height - buttonsContainerHeight, screenSize.Width, buttonsContainerHeight));
bottomButtonsContainer.BackgroundColor = UIColor.Blue;
View.AddSubview(bottomButtonsContainer);
// Create a view as container to embed the Scanbot SDK SBSDKScannerViewController:
scanningContainerView = new UIView(new CGRect(0, 0, screenSize.Width, screenSize.Height - buttonsContainerHeight));
View.AddSubview(scanningContainerView);
// Create the SBSDKScannerViewController, embedded into our custom scanningContainerView.
// As we do not want automatic image storage we pass null here as image storage.
scannerViewController = new SBSDKScannerViewController(this, scanningContainerView, null, false);
// =================================================================
//
// UI customizations can be implemented via delegate methods from "SBSDKScannerViewControllerDelegate".
// See some examples below the #region SBSDKScannerViewControllerDelegate
//
// Please see the API docs of our native Scanbot SDK for iOS, since all those methods and properties
// are also available as Scanbot Xamarin bindings.
//
// =================================================================
// Set the delegate to self.
scannerViewController.WeakDelegate = this;
// We want unscaled images in full size:
scannerViewController.ImageScale = 1.0f;
// The minimum score in percent (0 - 100) of the perspective distortion to accept a detected document.
// Default is 75.0. Set lower values to accept more perspective distortion. Warning: Lower values result in more blurred document images.
scannerViewController.AcceptedAngleScore = 70;
// The minimum size in percent (0 - 100) of the screen size to accept a detected document. It is sufficient that height or width match the score.
// Default is 80.0. Warning: Lower values result in low resolution document images.
scannerViewController.AcceptedSizeScore = 80;
// Sensitivity factor for automatic capturing. Must be in the range [0.0...1.0]. Invalid values are threated as 1.0.
// Defaults to 0.66 (1 sec).s A value of 1.0 triggers automatic capturing immediately, a value of 0.0 delays the automatic by 3 seconds.
scannerViewController.AutoCaptureSensitivity = 0.7f;
// The orientation captured images are locked onto. By default it is SBSDKOrientationLockNone.
// Setting this property to any other value will suppress the document detection status ‘SBSDKDocumentDetectionStatusOK_BadAspectRatio’.
// If the lock is enabled the detection status UI will be orientation-locked too.
scannerViewController.ImageOrientationLock = SBSDKOrientationLock.Portrait;
}
public override void ViewDidLoad()
{
base.ViewDidLoad();
// Create the SBSDKScannerViewController.
// We want it to be embedded into self.
// As we do not want automatic image storage we pass nil here for the image storage.
scannerViewController = new SBSDKScannerViewController(this, null);
// =================================================================
//
// UI customizations can be implemented via delegate methods from "SBSDKScannerViewControllerDelegate".
//
// Please check the API docs of our native Scanbot SDK for iOS, since all those methods and properties are also available as Scanbot Xamarin bindings.
//
// =================================================================
// Set the delegate to self.
scannerViewController.WeakDelegate = this;
// We want unscaled images in full size:
scannerViewController.ImageScale = 1.0f;
// The minimum score in percent (0 - 100) of the perspective distortion to accept a detected document.
// Default is 75.0. Set lower values to accept more perspective distortion. Warning: Lower values result in more blurred document images.
scannerViewController.AcceptedAngleScore = 70;
// The minimum size in percent (0 - 100) of the screen size to accept a detected document. It is sufficient that height or width match the score.
// Default is 80.0. Warning: Lower values result in low resolution document images.
scannerViewController.AcceptedSizeScore = 80;
// Sensitivity factor for automatic capturing. Must be in the range [0.0...1.0]. Invalid values are threated as 1.0.
// Defaults to 0.66 (1 sec).s A value of 1.0 triggers automatic capturing immediately, a value of 0.0 delays the automatic by 3 seconds.
scannerViewController.AutoCaptureSensitivity = 0.7f;
// The orientation captured images are locked onto. By default it is SBSDKOrientationLockNone.
// Setting this property to any other value will suppress the document detection status ‘SBSDKDocumentDetectionStatusOK_BadAspectRatio’.
// If the lock is enabled the detection status UI will be orientation-locked too.
scannerViewController.ImageOrientationLock = SBSDKOrientationLock.Portrait;
}
public string ScannerControllerLocalizedTextForDetectionStatus(SBSDKScannerViewController controller, SBSDKDocumentDetectionStatus status)
{
// Alternative method to "scannerController:viewForDetectionStatus:"
// Here you can return just the localized text for the status label depending on the detection status.
return(null);
}
public void ScannerControllerDidDetectPolygonWithStatus(SBSDKScannerViewController controller, SBSDKPolygon polygon, SBSDKDocumentDetectionStatus status)
{
// Everytime the document detector finishes detection it calls this delegate method.
}
public bool ScannerControllerShouldAnalyseVideoFrame(SBSDKScannerViewController controller)
{
return(autoSnappingEnabled && viewAppeared && PresentedViewController == null);
}
public CGPoint GetCenterForShutterButton(SBSDKScannerViewController controller)
{
return(new CGPoint(bottomButtonsContainer.Frame.Width / 2, bottomButtonsContainer.Frame.Height / 2));
}
public UIView GetSuperViewForShutterButton(SBSDKScannerViewController controller)
{
// Optional delegate for returning a custom view on which to place the shutter button.
return(bottomButtonsContainer);
}
public UIButton GetCustomShutterButton(SBSDKScannerViewController controller)
{
// Optional delegate for returning a custom shutter button.
//return customShutterButton;
return(null);
}
