iOS：在iOS13中显示弹出框的问题

Question

我显示的弹出窗口现在显示不正确。箭头一侧缺少一条线。我们可以检查箭头的末端是否有一块黑色。我认为里面的视图太长了。

显示弹出窗口的代码：

   _popoverController = UIPopoverController(contentViewController: navController)
   _popoverController?.delegate = self

   let rect = slotCollectionView.cellForItem(at: indexPath)!.frame
   self._popoverController?.backgroundColor = UIColor.init(rgb: Int(quaternaryColorHexa))
   self._popoverController?.present (from: rect, in: self.slotCollectionView, permittedArrowDirections: UIPopoverArrowDirection.any, animated: true) 

初始化Popover的代码：

override func viewDidLoad()
{
    super.viewDidLoad()

    self.preferredContentSize = contentSize()
    self.navigationController!.preferredContentSize = self.preferredContentSize;

    peopleTableView.isScrollEnabled = true
    peopleTableView.bounces = true
    peopleTableView.tableFooterView = UIView(frame: CGRect(x: 0, y: 0, width: 0, height: 0))
    peopleTableView.tableFooterView?.isHidden = true
    peopleTableView.backgroundColor = UIColor.init(rgb: Int(quinquenaryColorHexa))

    self.view.backgroundColor = UIColor.init(rgb: Int(quinquenaryColorHexa))
    self.view.layer.cornerRadius = 13.0
    self.view.layer.borderWidth = 1.5
    self.view.layer.borderColor = UIColor.init(rgb: Int(quaternaryColorHexa)).cgColor 

iOS12的显示：

iOS13的显示：

Answer 1

我认为这是 iOS13 版本中的一个 iOS bug，我建议你使用 git 项目来做你自己的弹出窗口：
DDPopoverBackgroundView

并使用它来显示弹出窗口：

       // Popover
       _popoverController = UIPopoverController(contentViewController: navController)
       _popoverController?.delegate = self

       let rect = slotCollectionView.cellForItem(at: indexPath)!.frame

       self._popoverController!.contentSize = CGSize(width: 350, height: 600)

       self._popoverController!.backgroundViewClass = DDPopoverBackgroundView.self
       self._popoverController!.backgroundColor = UIColor.init(rgb: Int(quaternaryColorHexa)) //arrow color

       OperationQueue.main.addOperation({
           self._popoverController?.present(from: rect, in: self.slotCollectionView, permittedArrowDirections: UIPopoverArrowDirection.any, animated: true)
       })

享受 ！;-)