如何在Swift 5中关闭第一个popver并显示第二个popver？

yourFirstPopover.dismiss(animated: true)

let yourSecondPopover = YourSecondPopoverViewController()
yourSecondPopover.modalPresentationStyle = .popover

// 设置第二个popover的位置和大小
yourSecondPopover.popoverPresentationController?.sourceView = yourSourceView
yourSecondPopover.popoverPresentationController?.sourceRect = yourSourceRect

// 设置第二个popover的箭头方向
yourSecondPopover.popoverPresentationController?.permittedArrowDirections = .any

// 设置第二个popover的代理
yourSecondPopover.popoverPresentationController?.delegate = self

// 显示第二个popover
present(yourSecondPopover, animated: true)

extension YourViewController: UIPopoverPresentationControllerDelegate {
    func adaptivePresentationStyle(for controller: UIPresentationController) -> UIModalPresentationStyle {
        // 返回.none来保持popover的显示
        return .none
    }
    
    func popoverPresentationControllerShouldDismissPopover(_ popoverPresentationController: UIPopoverPresentationController) -> Bool {
        // 返回true来允许点击popover外部区域来关闭popover
        return true
    }
}