Access HEIC and DNG pictures from … | Apple Developer Forums

I'm in throubles accessing original HEIC and DNG files from my iOS 11 app, written in Swift; following the Apple developer's documentation, to access original files it's enought to set

imagePicker.imageExportPreset = UIImagePickerController.ImageURLExportPreset.current

but on the

UIImagePickerController.InfoKey.imageURL

I still get an URL pointing to a JPEG file; I know the choosen pictures are HEIC and DNG because exporting as original on Mac photo app I get the original file format.

This is the complete code I use:

@IBAction func openRoll(_ sender: Any) {
  if UIImagePickerController.isSourceTypeAvailable(.photoLibrary) {
  let imagePicker = UIImagePickerController()
  imagePicker.delegate = self
  imagePicker.sourceType = .photoLibrary
  imagePicker.allowsEditing = false
  imagePicker.imageExportPreset = .current
  self.present(imagePicker, animated: true, completion: nil)
  }
}

And on delegate:

func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
  let image = info[UIImagePickerController.InfoKey.originalImage] as! UIImage

  let path = info[UIImagePickerController.InfoKey.imageURL] as! NSURL
  NSLog("URL: \(path.absoluteString)")
  NSLog("Export: \(picker.imageExportPreset.rawValue)")
  dismiss(animated:true, completion: nil)
  // ...code to use the image!
}

Thank you very much for help, suggestions and working snippets.

Access HEIC and DNG pictures from iOS 11 camera roll