Ios 如何在照相机应用程序中添加裁剪功能

我已经实现了从图库中拾取图像或拍照，并在屏幕的uiimage视图中显示。但我想实现裁剪功能

也就是说，在我从手机上拍照之后，我需要裁剪，然后我需要在屏幕上显示。怎么做

这是我的代码：

var imagePicker: UIImagePickerController!

@IBOutlet weak var imagevView: UIImageView!

override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.
}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}



@IBAction func ChooseImage(_ sender: AnyObject) {

    imagePicker =  UIImagePickerController()
    imagePicker.delegate = self
    imagePicker.sourceType = .camera


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

}


func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
    imagePicker.dismiss(animated: true, completion: nil)
    imagevView.image = info[UIImagePickerControllerOriginalImage] as? UIImage

        }

---

谢谢

在某种程度上，您可以使用

imagePicker.allowsdediting=true

设置。如果你想要更高级的种植，像@Kamlesh建议的可能就是你想要的。

也许有一些有用的东西。请检查这可能有用