Question

我创建了一个方法来解除我呈现的视图控制器，显示的视图控制器确实得到了解除但是没有调用popoverPresentationControllerDidDismissPopover，如何在解除显示的视图控制器后调用popoverPresentationControllerDidDismissPopover？

func dismissPresentedViewController() {
        self.presentedViewController?.dismiss(animated: true, completion: nil)
        popoverPresentationController?.delegate?.popoverPresentationControllerDidDismissPopover?(popoverPresentationController!)

    }

func popoverPresentationControllerDidDismissPopover(_ popoverPresentationController: UIPopoverPresentationController) {
        print("Here")
    }

没有调用popoverPresentationControllerDidDismissPopover，是的，我有UIPopoverPresentationControllerDelegate

let popupController = storyboard?.instantiateViewController(withIdentifier: "CommentsView") as! CommentsController

popupController.modalPresentationStyle = .popover
popupController.preferredContentSize = CGSize(width: 400, height: 400)
if let popoverController = popupController.popoverPresentationController {
    popoverController.sourceView = (cell)
    popoverController.sourceRect = (cell?.bounds)!
    popoverController.permittedArrowDirections = .up
    popoverController.delegate = self
}


present(popupController, animated: true, completion: nil)

Answer 1

来自Apple's documentation ...

popoverPresentationControllerDidDismissPopover(_:)

popover表示控制器在解除后调用此方法   弹出窗口让你知道它不再在屏幕上。该   表示控制器仅在响应用户时调用此方法   动作。 如果你关闭popover，它不会调用此方法   编程。

在presentViewController？.dismiss之后，Swift调用popoverPresentationControllerDidDismissPopover

1 个答案: