swift - Swift，此类不适用于键“数组”的键值编码兼容

我正在开发popover控制器，并在打开popover时将数组（属性）传输到popoverController（SortingPopoverController）。对于视图，我创建了popView.xib，并且在firstOwner中，我附加了“ SortingPopovercontroller”。

我的代码如下

    func sortingPressed(sender: AnyObject){
            var sortingPopView = SortingPopoverController(nibName: "PopView",bundle: nil )

     var sortingPopoverController = UIPopoverController(contentViewController: sortingPopView)

      sortingPopoverController.popoverContentSize = CGSize(width: 250, height: 100)


      sortingPopoverController.presentPopoverFromBarButtonItem(sortingBtn, permittedArrowDirections: UIPopoverArrowDirection.Up
       , animated: true)

      sortingPopoverController.setValue(properties, forKey: "properties") //i am passing this array to the "sorting controller"

  }

///排序控制器代码

    class SortingPopoverController: UIViewController
        {
            var properties:[Property] = [Property]()
            var propertyNameSrt = false
            var addressSrt = false
            var ascSorting = false
            var utility = Utility()

             override func viewDidLoad()
                {
                     super.viewDidLoad()

                     let propertyNameSorting = UITapGestureRecognizer(target: self, action: "propertyNameSorting:")
                      self.propertyNameView.addGestureRecognizer(propertyNameSorting)

                     let addressSorting = UITapGestureRecognizer(target: self, action: "addressSorting:")
                     self.addressNameView.addGestureRecognizer(addressSorting)
                     imgTickPropertyName.hidden = true
                     imgTickAddress.hidden = true

                     properties = self.valueForKey("properties") as! [Property]
                     println(properties.count)

                }
        }

在视图上确实加载了，但由于“此类不符合键属性的键值编码标准”，我收到了错误消息

最佳答案

sortingPopoverController是UIPopoverController。您打算使用sortingPopView，其中SortingPopoverController是。

sortingPopView.setValue(properties, forKey: "properties") //i am passing this array to the "sorting controller"

在这里不需要Key-Value Coding语法。

sortingPopView.properties = properties

将做同样的事情。注意：上面的内容也是安全的，因此，如果sortingPopView.properties和properties是不同的类型，则会收到警告或错误。