Question

我收到错误说＆＃34;致命错误：在展开可选值时意外发现nil＆＃34;在下面的粗体代码行中。我正在使用Xcode 7.2

 func imagePickerController(picker: UIImagePickerController, didFinishPickingImage image: UIImage, editingInfo: [String : AnyObject]?) {
    self.dismissViewControllerAnimated(true, completion: nil)
    **myImageView.image = image**
}

Answer 1

您应该在解除视图控制器之前设置图像。

public List<ExistedProducts> GetStock()
{
   var result = from p in Products 
   join st in Stock on st.ProductID equals p.ID
   select new{ExistedProductID=p.ID,ExistedProductQte = st.Qte};
   return result.Cast<ExistedProducts>.ToList();// exception here 
}

Answer 2

只需添加问号即可避免此问题：

myImageView?.image = image

无法在图像视图中设置图像

2 个答案: