Swift how to set Editor crop size for editor in UIImagepickercontroller

Question

For my iOS app I need a Fotoeditor. Therefore I set:

imagePicker.allowsEditing = true

Now I would like to change the size of the editable area.

Here is the editable area, but I need the size of the usable image different:

How can I change the size of this area to use a different size for the usable image area?

Here is my code for my PickerController

@IBOutlet weak var preview: UIImageView!

let imagePicker = UIImagePickerController()

@IBAction func selectImage(_ sender: Any) {
    imagePicker.allowsEditing = true
    imagePicker.sourceType = .photoLibrary

    present(imagePicker, animated: true, completion: nil)
}

override func viewDidLoad() {
    super.viewDidLoad()

    imagePicker.delegate = self
}

func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
    if let pickedImage = info[UIImagePickerControllerOriginalImage] as? UIImage{
        preview.contentMode = .scaleAspectFit
        preview.image = pickedImage
    }
    dismiss(animated: true, completion: nil)
}

func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
    dismiss(animated: true, completion: nil)
}

Answer 1

I was trying to save the edited image from the library or the camera and I didn't find anything on the web so I try this code and it works! Swift 4.2

if let pickedImage = info[UIImagePickerController.InfoKey.editedImage] as? UIImage{
            imageProfile.contentMode = .scaleAspectFit
            imageProfile.image = pickedImage
}

this lines of code have to be inside the function

func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]){}