Caps-iOS/CapCollector/View Components/AlwaysShowPopup.swift
Christoph Hagen 2806733b71 Version 1
2019-03-15 13:19:19 +01:00

43 lines
1.5 KiB
Swift

// Copyright 2018, Ralf Ebert
// License https://opensource.org/licenses/MIT
// License https://creativecommons.org/publicdomain/zero/1.0/
// Source https://www.ralfebert.de/ios-examples/uikit/choicepopover/
import UIKit
/**
By default, when you use:
```
controller.modalPresentationStyle = .popover
```
in a horizontally compact environment (iPhone in portrait mode), this option behaves the same as fullScreen.
You can make it to always show a popover by using:
```
let presentationController = AlwaysPresentAsPopover.configurePresentation(forController: controller)
```
*/
class AlwaysPresentAsPopover : NSObject, UIPopoverPresentationControllerDelegate {
// `sharedInstance` because the delegate property is weak - the delegate instance needs to be retained.
private static let sharedInstance = AlwaysPresentAsPopover()
private override init() {
super.init()
}
func adaptivePresentationStyle(for controller: UIPresentationController) -> UIModalPresentationStyle {
return .none
}
static func configurePresentation(forController controller : UIViewController) -> UIPopoverPresentationController {
controller.modalPresentationStyle = .popover
let presentationController = controller.presentationController as! UIPopoverPresentationController
presentationController.delegate = AlwaysPresentAsPopover.sharedInstance
return presentationController
}
}