Present a popover from an arbitrary anchor point in Swift
Update to func syntax above:
func adaptivePresentationStyle(for controller: UIPresentationController) -> UIModalPresentatinStyle {
return .none
}
For some reason the old syntax is still allowed but is not active and will not implement popup or anchor correctly.
Updated for Swift 3
In the storyboard, add a view controller that you would like to be the popover. Set the Storyboard ID to be "popoverId".
Also add a button to your main view controller and hook up the IBAction to the following code.
import UIKit
class ViewController: UIViewController, UIPopoverPresentationControllerDelegate {
@IBAction func buttonTap(sender: UIButton) {
// get a reference to the view controller for the popover
let popController = UIStoryboard(name: "Main", 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 // 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
}
}
Setting the sourceView
and sourceRect
is what allows you to choose an arbitrary point to display the popover.
That's it. Now it should like something like this when the button is tapped.
Thanks to this article for help.
Solution for Swift 3.1 :
Add to your ViewController UIPopoverPresentationControllerDelegate delegate :
class OriginalViewController: UIViewController, UIPopoverPresentationControllerDelegate
Add a button to your ViewController and on tap on your button, call this code :
let controller = MyPopViewController()
controller.modalPresentationStyle = UIModalPresentationStyle.popover
let popController = controller.popoverPresentationController
popController?.permittedArrowDirections = .any
popController?.delegate = self
popController?.sourceRect = (self.myButton?.bounds)!
popController?.sourceView = self.myButton
self.present(controller, animated: true, completion: nil)