我正在尝试使用以下代码创建一个弹出菜单:
import UIKit
class BeobachtungViewController: UIViewController, UIPopoverPresentationControllerDelegate {
@IBAction func addClicked(_ sender: AnyObject) {
// get a reference to the view controller for the popover
let popController = UIStoryboard(name: "Personenakte", bundle: nil).instantiateViewController(withIdentifier: "popoverId")
// set the presentation style
popController.modalPresentationStyle = UIModalPresentationStyle.popover
// set up the popover presentation controller
popController.popoverPresentationController?.permittedArrowDirections = UIPopoverArrowDirection.up
popController.popoverPresentationController?.delegate = self
popController.popoverPresentationController?.sourceView = sender as! UIView // button
popController.popoverPresentationController?.sourceRect = sender.bounds
// present the popover
self.present(popController, animated: true, completion: nil)
}
// UIPopoverPresentationControllerDelegate method
func adaptivePresentationStyleForPresentationController(controller: UIPresentationController) -> UIModalPresentationStyle {
// Force popover style
return UIModalPresentationStyle.none
}
}
这可以在iPad上运行,但是在iPhone上,弹出窗口占据整个iPhone屏幕 . 我只想要一个带箭头的小窗户 . 我找到了几个教程,但没有一个对我有用 .
1 回答
将您的委托方法更改为: