public override void LayoutSubviews()
{
base.LayoutSubviews();
nfloat largePadding = 20;
nfloat x = largePadding;
nfloat y = largePadding;
nfloat w = Frame.Width - 2 * x;
nfloat h = Frame.Width / 6;
if (SBSDK.IsLicenseValid())
{
h = 0;
}
LicenseIndicator.Frame = new CGRect(x, y, w, h);
x = 0;
y += h + largePadding;
w = Frame.Width;
h = DocumentScanner.Height;
DocumentScanner.Frame = new CGRect(x, y, w, h);
y += h + largePadding;
h = DataDetectors.Height;
DataDetectors.Frame = new CGRect(x, y, w, h);
ContentSize = new CGSize(Frame.Width, DataDetectors.Frame.Bottom);
}
public override void ViewWillAppear(bool animated)
{
base.ViewWillAppear(animated);
if (!SBSDK.IsLicenseValid())
{
ContentView.LayoutSubviews();
}
foreach (ScannerButton button in ContentView.DocumentScanner.Buttons)
{
button.Click += OnScannerButtonClick;
}
foreach (ScannerButton button in ContentView.BarcodeDetectors.Buttons)
{
button.Click += OnBarcodeButtonClick;
}
foreach (ScannerButton button in ContentView.DataDetectors.Buttons)
{
button.Click += OnDataButtonClick;
}
CameraCallback.Selected += OnScanComplete;
}
void SaveDocument(SaveType type)
{
if (!SBSDK.IsLicenseValid())
{
Alert.ShowLicenseDialog(this);
return;
}
Task.Run(delegate
{
var input = adapter.GetDocumentUris().ToArray();
var output = GetOutputUri(".pdf");
if (type == SaveType.TIFF)
{
output = GetOutputUri(".tiff");
// Please note that some compression types are only compatible for 1-bit encoded images (binarized black & white images)!
var options = new TiffOptions {
OneBitEncoded = true, Compression = TiffCompressionOptions.CompressionCcittfax4, Dpi = 250
};
bool success = SBSDK.WriteTiff(input, output, options);
}
else if (type == SaveType.OCR)
{
var languages = SBSDK.GetOcrConfigs().InstalledLanguages.ToArray();
if (languages.Length == 0)
{
RunOnUiThread(delegate
{
Alert.Toast(this, "OCR languages blobs are not available");
});
return;
}
SBSDK.PerformOCR(input, languages, output);
}
else
{
SBSDK.CreatePDF(input, output, ScanbotSDK.Xamarin.PDFPageSize.FixedA4);
}
Java.IO.File file = Copier.Copy(this, output);
var intent = new Intent(Intent.ActionView, output);
var authority = ApplicationContext.PackageName + ".provider";
var uri = FileProvider.GetUriForFile(this, authority, file);
intent.SetDataAndType(uri, MimeUtils.GetMimeByName(file.Name));
intent.SetFlags(ActivityFlags.ClearWhenTaskReset | ActivityFlags.NewTask);
intent.AddFlags(ActivityFlags.GrantReadUriPermission | ActivityFlags.GrantWriteUriPermission);
RunOnUiThread(delegate
{
StartActivity(Intent.CreateChooser(intent, output.LastPathSegment));
Alert.Toast(this, "File saved to: " + output.Path);
});
});
}
bool CheckScanbotSDKLicense()
{
if (SBSDK.IsLicenseValid())
{
// Trial period, valid trial license or valid production license.
return(true);
}
ShowErrorMessage("Scanbot SDK (trial) license has expired!");
return(false);
}
protected override void OnResume()
{
base.OnResume();
if (!SBSDK.IsLicenseValid())
{
Alert.ShowLicenseDialog(this);
}
UpdateVisibility();
}
bool CheckScanbotSDKLicense()
{
if (SBSDK.IsLicenseValid())
{
// Trial period, valid trial license or valid production license.
return(true);
}
Toast.MakeText(this, "Scanbot SDK (trial) license has expired!", ToastLength.Long).Show();
return(false);
}
bool CheckLicense()
{
if (SBSDK.IsLicenseValid())
{
LicenseIndicator.Visibility = ViewStates.Gone;
}
else
{
LicenseIndicator.Visibility = ViewStates.Visible;
Alert.Toast(this, "Invalid or missing license");
}
return(SBSDK.IsLicenseValid());
}
private void OnScannerButtonClick(object sender, EventArgs e)
{
if (!SBSDK.IsLicenseValid())
{
ContentView.LayoutSubviews();
return;
}
var button = (ScannerButton)sender;
if (button.Data.Code == ListItemCode.ScanDocument)
{
var config = SBSDKUIDocumentScannerConfiguration.DefaultConfiguration;
config.BehaviorConfiguration.MultiPageEnabled = true;
config.BehaviorConfiguration.IgnoreBadAspectRatio = true;
config.TextConfiguration.PageCounterButtonTitle = "%d Page(s)";
config.TextConfiguration.TextHintOK = "Don't move.\nCapturing document...";
config.UiConfiguration.BottomBarBackgroundColor = UIColor.Blue;
config.UiConfiguration.BottomBarButtonsColor = UIColor.White;
// see further customization configs...
var controller = SBSDKUIDocumentScannerViewController
.CreateNewWithConfiguration(config, CameraCallback);
controller.ModalPresentationStyle = UIModalPresentationStyle.FullScreen;
PresentViewController(controller, false, null);
}
else if (button.Data.Code == ListItemCode.ImportImage)
{
ImagePicker.Instance.Present(this);
ImagePicker.Instance.Controller.FinishedPickingMedia += ImageImported;
}
else if (button.Data.Code == ListItemCode.ViewImages)
{
OpenImageListController();
}
}
private void OnDataButtonClick(object sender, EventArgs e)
{
if (!SBSDK.IsLicenseValid())
{
ContentView.LayoutSubviews();
return;
}
var button = (ScannerButton)sender;
if (button.Data.Code == ListItemCode.ScannerMRZ)
{
var config = SBSDKUIMachineCodeScannerConfiguration.DefaultConfiguration;
config.TextConfiguration.CancelButtonTitle = "Done";
//config.TextConfiguration.FinderTextHint = "Custom finder text ..."
// see further customization configs
var viewSize = View.Frame.Size;
var targetWidth = viewSize.Width - ((viewSize.Width * 0.058) * 2);
var aspect = new SBSDKAspectRatio(targetWidth, targetWidth * 0.3);
config.UiConfiguration.FinderAspectRatio = aspect;
var controller = SBSDKUIMRZScannerViewController
.CreateNewWithConfiguration(config, Delegates.MRZ);
PresentViewController(controller, true, null);
}
else if (button.Data.Code == ListItemCode.WorkflowDC)
{
var ratios = new SBSDKAspectRatio[]
{
// DC form A5 portrait (e.g. white sheet, AUB Muster 1b/E (1/2018))
new SBSDKAspectRatio(148.0, 210.0),
// DC form A6 landscape (e.g. yellow sheet, AUB Muster 1b (1.2018))
new SBSDKAspectRatio(148.0, 105.0)
};
var title = "Please align the DC form in the frame.";
var name = "DisabilityCertificateFlow";
var steps = new SBSDKUIWorkflowStep[]
{
new SBSDKUIScanDisabilityCertificateWorkflowStep(
title, "", ratios, true, WorkflowStepValidator.OnDCFormStep
)
};
PresentController(name, steps);
}
else if (button.Data.Code == ListItemCode.WorkflowMRZImage)
{
var title = "Please align the Machine readable card with the form in the frame";
var name = "MRZScanFlow";
var steps = new SBSDKUIWorkflowStep[]
{
new SBSDKUIScanMachineReadableZoneWorkflowStep(
title, "", MRZRatios, true, WorkflowStepValidator.OnIDCardBackStep
)
};
PresentController(name, steps);
}
else if (button.Data.Code == ListItemCode.WorkflowMRZFrontBack)
{
var name = "MRZBackFrontScanFlow";
var steps = new SBSDKUIWorkflowStep[]
{
new SBSDKUIWorkflowStep(
"Step 1/2", "Please scan the front side of your ID card",
MRZRatios, true, false, null, WorkflowStepValidator.OnIDCardFrontStep
),
new SBSDKUIScanMachineReadableZoneWorkflowStep(
"Step 2/2", "Please scan the back side of your ID card",
MRZRatios, true, WorkflowStepValidator.OnIDCardBackStep
)
};
PresentController(name, steps);
}
else if (button.Data.Code == ListItemCode.WorkflowSEPA)
{
var name = "SEPAScanFlow";
var steps = new SBSDKUIWorkflowStep[]
{
new SBSDKUIScanPayFormWorkflowStep(
"Please scan a SEPA PayForm", "", false, WorkflowStepValidator.OnPayFormStep
)
};
PresentController(name, steps);
}
else if (button.Data.Code == ListItemCode.WorkflowQR)
{
var name = "QRCodeScanFlow";
var types = SBSDKUIMachineCodesCollection.TwoDimensionalBarcodes;
var steps = new SBSDKUIWorkflowStep[]
{
new SBSDKUIScanBarCodeWorkflowStep("Scan your QR code", "",
types, new SBSDKAspectRatio(1, 1), WorkflowStepValidator.OnBarCodeStep)
};
PresentController(name, steps);
}
else if (button.Data.Code == ListItemCode.ScannerEHIC)
{
var configuration = SBSDKUIHealthInsuranceCardScannerConfiguration.DefaultConfiguration;
var controller = SBSDKUIHealthInsuranceCardScannerViewController
.CreateNewWithConfiguration(configuration, Delegates.EHIC);
controller.ModalPresentationStyle = UIModalPresentationStyle.FullScreen;
PresentViewController(controller, false, null);
}
else if (button.Data.Code == ListItemCode.ScannerBarcode)
{
var configuration = SBSDKUIMachineCodeScannerConfiguration.DefaultConfiguration;
var controller = SBSDKUIBarcodeScannerViewController
.CreateNewWithAcceptedMachineCodeTypes(
SBSDKBarcodeType.AllTypes, configuration, Delegates.Barcode);
controller.ModalPresentationStyle = UIModalPresentationStyle.FullScreen;
PresentViewController(controller, false, null);
}
}
private void OnSaveButtonClick(object sender, EventArgs e)
{
var input = PageRepository.DocumentImageURLs;
var docs = NSSearchPathDirectory.DocumentDirectory;
var nsurl = NSFileManager.DefaultManager.GetUrls(docs, NSSearchPathDomain.User)[0];
var controller = UIAlertController.Create(Texts.save, Texts.SaveHow, UIAlertControllerStyle.ActionSheet);
var title = "Oops!";
var body = "Something went wrong with saving your file. Please try again";
if (!SBSDK.IsLicenseValid())
{
title = "Oops";
body = "Your license has expired";
Alert.Show(this, title, body);
return;
}
var pdf = CreateButton(Texts.save_without_ocr, delegate
{
var output = new NSUrl(nsurl.AbsoluteString + Guid.NewGuid() + ".pdf");
SBSDK.CreatePDF(input, output, PDFPageSize.FixedA4);
OpenDocument(output, false);
});
var ocr = CreateButton(Texts.save_with_ocr, delegate
{
var output = new NSUrl(nsurl.AbsoluteString + Guid.NewGuid() + ".pdf");
var languages = SBSDK.GetOcrConfigs().InstalledLanguages;
try
{
SBSDK.PerformOCR(input, languages.ToArray(), output);
OpenDocument(output, true);
}
catch (Exception ex)
{
body = ex.Message;
Alert.Show(this, title, body);
}
});
var tiff = CreateButton(Texts.Tiff, delegate
{
var output = new NSUrl(nsurl.AbsoluteString + Guid.NewGuid() + ".tiff");
// Please note that some compression types are only compatible for 1-bit encoded images (binarized black & white images)!
var options = new TiffOptions {
OneBitEncoded = true, Compression = TiffCompressionOptions.CompressionCcittfax4, Dpi = 250
};
bool success = SBSDK.WriteTiff(input, output, options);
if (success)
{
title = "Info";
body = "TIFF file saved to: " + output.Path;
}
Alert.Show(this, title, body);
});
var cancel = CreateButton("Cancel", delegate { }, UIAlertActionStyle.Cancel);
controller.AddAction(pdf);
controller.AddAction(ocr);
controller.AddAction(tiff);
controller.AddAction(cancel);
UIPopoverPresentationController presentationPopover = controller.PopoverPresentationController;
if (presentationPopover != null)
{
presentationPopover.SourceView = View;
presentationPopover.PermittedArrowDirections = UIPopoverArrowDirection.Up;
}
PresentViewController(controller, true, null);
}