Xcode9中的UIImagePickerController出错

Question

当我执行mi代码时，它显示一个错误：

发现扩展时遇到错误: Error Domain=PlugInKit Code=13 "query cancelled“UserInfo={NSLocalizedDescription=query cancelled}

当我从库中选择一张照片或从库中取消时，就会发生这种情况，问题是照片出现了，但没有分配给变量。

我的代码：

class DetalleShopViewController: UIViewController, UITextFieldDelegate, UIImagePickerControllerDelegate, UINavigationControllerDelegate {

@IBOutlet weak var imageDetalle: UIImageView!
@IBOutlet weak var textFieldDetalle: UITextField!
@IBOutlet weak var saveBtn: UIBarButtonItem!

var shops: [NSManagedObject] = []

override func viewDidLoad() {
    super.viewDidLoad()
    textFieldDetalle.delegate = self
    // Do any additional setup after loading the view.
}



override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
    if (sender as AnyObject? !== saveBtn) {return}
    print("VOY A MANDARLA")
    self.save(name: textFieldDetalle.text!, image: imageDetalle.image!)
    print("MANDADA")
}


@IBAction func cancelar(_ sender: UIBarButtonItem) {
    dismiss(animated: true, completion: nil)
}

@IBAction func seleccionImagen(_ sender: UITapGestureRecognizer) {
    textFieldDetalle.resignFirstResponder()
    let imagePickerCtrl = UIImagePickerController()
    imagePickerCtrl.delegate = self
    imagePickerCtrl.sourceType = .photoLibrary
    imagePickerCtrl.allowsEditing = false

    self.present(imagePickerCtrl, animated: true, completion: nil)
}


// MARK: UITextFieldDelegate

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

func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {

    let selectedImage = info[UIImagePickerControllerOriginalImage] as! UIImage
    imageDetalle.image = selectedImage
    self.dismiss(animated: true, completion: nil)
}

Answer 1

也许尝试忽略self (也就是current VC)就是在取消选择器操作？

试着做

picker.dismiss(animated: true, completion: nil)

而不是

self.dismiss(animated: true, completion: nil)

Answer 2

试一试

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

将你的选择器控制器声明为一个类变量，并在viewdidload中设置它的委托。