Ios 从modal ViewController演示UIImagePickerController

在我的故事板中有这样一部分：

所以我想要UserProfileController的礼物：UIViewController“МlППМфцц”，这是模态（位于图像顶部）UIImageViewController

我的代码：

extension UserProfileController: UIImagePickerControllerDelegate, UINavigationControllerDelegate {
    @IBAction func imagePressed(_ sender: Any) {
        let imagePickerController = UIImagePickerController()
        imagePickerController.delegate = self
        self.present(imagePickerController, animated: true, completion: nil)
    }

    func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
        guard let image = info[UIImagePickerControllerOriginalImage] as? UIImage else {
            return
        }
        picker.dismiss(animated: true, completion: nil)
        userProfileImageView.image = image
    }
}

好的，出现了imagePickerController，但在我选择了image之后，我已经取消了这两个控制器（imagePickerController和parent-UserProfileController）

我做错了什么？谢谢

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问题可能是我把“SideMenunigationController”显示为模态？（侧菜单框架文档中建议这样做）

尝试在类中创建UIImagePickerController引用（作为变量）

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是否可以尝试将@IBAction放在扩展之外？已经这样做了，IBAction与声明类主体中的imagePicker:didFinish方法相同

// to choose an image from the Camera Roll
    fileprivate lazy var imagePicker: UIImagePickerController = {
        let picker: UIImagePickerController = UIImagePickerController()

        picker.allowsEditing = false
        picker.sourceType = .savedPhotosAlbum
        picker.delegate = self

        return picker
    }()