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// presenting VNDocumentCameraViewController
let scanVC = VNDocumentCameraViewController()
scanVC.delegate = self
present(scanVC, animated: true)
// VNDocumentCameraViewControllerDelegate conformance
extension DocumentsScannerViewController: VNDocumentCameraViewControllerDelegate {
func documentCameraViewController(_ controller: VNDocumentCameraViewController, didFinishWith scan: VNDocumentCameraScan) {
var documentImages: [UIImage] = []
for page in 0...scan.pageCount-1 {
let image = scan.imageOfPage(at: page)
documentImages.append(image)
}
controller.dismiss(animated: true, completion: nil)
finishedScanningDocuments(images: documentImages)
}
func documentCameraViewController(_ controller: VNDocumentCameraViewController, didFailWithError error: Error) {
showError(message: "Something unexpected happened, please try again later")
controller.dismiss(animated: true)
}
func documentCameraViewControllerDidCancel(_ controller: VNDocumentCameraViewController) {
controller.dismiss(animated: true)
}
}
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