swift 中的弹出窗口 iphone ios 3
Popover in swift 3 on iphone ios
我正在尝试使用以下代码制作弹出菜单:
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
}
}
这适用于 iPad,但是,在 iPhone 上,弹出窗口会占据整个 iPhone 屏幕。我只想要一个带箭头的小 window。我找到了几个教程,但 none 对我有用。
将您的委托方法更改为:
func adaptivePresentationStyle(for controller: UIPresentationController, traitCollection: UITraitCollection) -> UIModalPresentationStyle {
// return UIModalPresentationStyle.FullScreen
return UIModalPresentationStyle.none
}
我正在尝试使用以下代码制作弹出菜单:
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
}
}
这适用于 iPad,但是,在 iPhone 上,弹出窗口会占据整个 iPhone 屏幕。我只想要一个带箭头的小 window。我找到了几个教程,但 none 对我有用。
将您的委托方法更改为:
func adaptivePresentationStyle(for controller: UIPresentationController, traitCollection: UITraitCollection) -> UIModalPresentationStyle {
// return UIModalPresentationStyle.FullScreen
return UIModalPresentationStyle.none
}