Question

我想在我从图库中选择图像后呈现一个视图控制器我收到此警告：尝试在视图不在窗口层次结构中呈现！

任何人都可以帮忙解决这个问题

我的代码是

func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String: Any]) {
        dismiss(animated: true, completion: nil)

        if (info[UIImagePickerControllerOriginalImage] as? UIImage) != nil {
            print(info)
            if let manageDocumentController = self.storyboard?.instantiateViewController(withIdentifier: "ManageDocumentVC")
                as? ManageDocumentVC {
                let navController = SMNavigationController(rootViewController: manageDocumentController)
                self.present(navController, animated: true, completion: nil)
            }
        }
    }

Answer 1

如果要呈现给viewController，则应使用以下代码：

if let manageDocumentController = self.storyboard?.instantiateViewController(withIdentifier: "ManageDocumentVC") as? ManageDocumentVC {
   self.present(manageDocumentController, animated: true, completion: nil)
}

如果你的viewController有NavigationController，你应该使用下一个代码：

if let navController = self.storyboard?.instantiateViewController(withIdentifier: "nameOfNavigationControllerIdentifier") {
   self.present(navController, animated: true, completion: nil)
}

从图库中选取图像后呈现视图控制器

1 个答案: