Question

我有一个UIImagePickerController所以当用户选择他/她的照片时会执行segue但是segue无法正常工作（实际上工作但vc未加载）这是我的代码：

        let imagepicker = UIImagePickerController()

        imagepicker.delegate = self

        imagepicker.sourceType = UIImagePickerControllerSourceType.photoLibrary

        imagepicker.allowsEditing = true

        self.present(imagepicker, animated: true)
        //...
        func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
            takenimage = info[UIImagePickerControllerOriginalImage] as! UIImage
            self.dismiss(animated: true, completion: nil)
            print("image loaded")
            performSegue(withIdentifier: "ToPrescriptionView", sender: nil)
        }
        override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
          if segue.identifier == "ToPrescriptionView" {
          let PrescriptionView = segue.destination as! Prescription
          PrescriptionView.PrescriptionImage = takenimage
         print("segue loaded")
        }

我正在＆＃34;图像加载＆＃34;并且＆＃34; segue loaded＆＃34;但我的viewcontroller仍然是前一个

Answer 1

当您解雇performSegue时，尝试在dismiss的完成区内UIImagePickerController。{/ p>

self.dismiss(animated: true) {
     performSegue(withIdentifier: "ToPrescriptionView", sender: nil)
}

我的segue不在imagepicker中工作

1 个答案: