Swift中的圆形图像选择器

Question

如何在我的应用程序中实现圆形ImagePicker？

这是一个使这成为可能的库，但我不知道Objective-C： https://github.com/ruslanskorb/RSKImageCropper

我当前的代码：

var selectedImage：UIImage？

func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
    if let editImage = info["UIImagePickerControllerEditedImage"] as? UIImage {
        profilImageView.image = editImage
        selectedImage = editImage

    } else if let originalImage = info["UIImagePickerControllerOriginalImage"] as? UIImage {
        profilImageView.image = originalImage
        selectedImage = originalImage
    }
    dismiss(animated: true, completion: nil)
}