单击图像视图后如何正确选择照片库中的照片？

Question

单击图像视图后，我试图在照片库中选择一张照片，但没有任何反应。你能说一下有什么问题吗？

imgView.isUserInteractionEnabled = true
let gestureRecognizer = UIGestureRecognizer(target: self, action: #selector(changeImage))
imgView.addGestureRecognizer(gestureRecognizer)

@objc func changeImage() {
          
        let imagePicker = UIImagePickerController()
        imagePicker.sourceType = .photoLibrary
        imagePicker.allowsEditing = true
        imagePicker.delegate = self
        present(imagePicker, animated: true, completion: nil)
    }

extension ViewController: UIImagePickerControllerDelegate, UINavigationControllerDelegate {
    
    func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
        
        if let image = info[UIImagePickerController.InfoKey(rawValue: "UIImagePickerControllerEditedImage")] as? UIImage {
                self.imgView.image = image
        }
        picker.dismiss(animated: true, completion: nil)
    }
    
    func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
        picker.dismiss(animated: true, completion: nil)
    }
}

Answer 1

使用 UITapGestureRecognizer 代替 UIGestureRecognizer。

let gestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(changeImage))