Missing Popover Messages snippet files that weren't automatically com…

…mited by Xcode.

StoryboardSnippets/StoryboardSnippets/Snippets/PopoverMessage/AlwaysPresentAsPopover.swift

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+//
+// AlwaysPresentAsPopover.swift
+// StoryboardSnippets
+//
+// Created by Elliott Io on 4/26/20.
+// Copyright © 2020 elliott io. All rights reserved.
+//
+
+import Foundation
+import UIKit
+
+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
+ }
+}

StoryboardSnippets/StoryboardSnippets/Snippets/PopoverMessage/PopoverViewController.swift

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+//
+// AlwaysPresentAsPopover.swift
+// StoryboardSnippets
+//
+// Created by Elliott Io on 4/26/20.
+// Copyright © 2020 elliott io. All rights reserved.
+//
+
+import Foundation
+import UIKit
+
+class PopoverViewController: UIViewController {
+
+ @IBOutlet weak var labelMessage: UILabel!
+ var message:String?
+ var sendingViewController: UIViewController?
+ var arrowDirection: UIPopoverArrowDirection = .any
+
+ let ltPadding: CGFloat = 20 // leading/trailing padding
+ let tbPadding: CGFloat = 14 // top/bottom padding
+ let arrowPadding: CGFloat = 13 // popover arrow padding
+ let dimLevel: CGFloat = 0.6
+
+ override func viewDidLoad() {
+ super.viewDidLoad()
+
+ if let message = self.message {
+ self.labelMessage.text = message
+ }
+ let tap = UITapGestureRecognizer(target: self, action: #selector(self.handleTap(_:)))
+ view.addGestureRecognizer(tap)
+
+ // dim sendingViewController
+ UIView.animate(withDuration: AntimationDuration.fadeInOut.rawValue, animations: {
+ self.sendingViewController?.view.alpha = self.dimLevel
+ })
+ }
+
+ override func viewWillAppear(_ animated: Bool) {
+ super.viewWillAppear(animated)
+
+ print("arrowDirection: \(arrowDirection)")
+
+ let item: UIView = self.labelMessage
+
+ guard let superview = item.superview else { return }
+
+ // all constaints must be set for a proper display
+
+ // set centered constraincts
+ item.centerYAnchor.constraint(equalTo: superview.centerYAnchor).isActive = true
+ item.centerXAnchor.constraint(equalTo: superview.centerXAnchor).isActive = true
+
+ // iOS grows view if there is an arrow, so adjust anchors to fix offset
+ if arrowDirection.rawValue == 2 { //.down {
+ item.leadingAnchor.constraint(equalTo: superview.leadingAnchor, constant: ltPadding).isActive = true
+ item.trailingAnchor.constraint(equalTo: superview.trailingAnchor, constant: ltPadding).isActive = true
+ item.topAnchor.constraint(equalTo: superview.topAnchor, constant: tbPadding).isActive = true
+ item.bottomAnchor.constraint(greaterThanOrEqualTo: superview.bottomAnchor, constant: tbPadding + arrowPadding).isActive = true
+ item.widthAnchor.constraint(equalTo: superview.widthAnchor, constant: -(ltPadding * 2)).isActive = true
+ item.heightAnchor.constraint(equalTo: superview.heightAnchor, constant: -(tbPadding * 2) - arrowPadding).isActive = true
+ } else if arrowDirection.rawValue == 1 { //.up {
+ item.leadingAnchor.constraint(equalTo: superview.leadingAnchor, constant: ltPadding).isActive = true
+ item.trailingAnchor.constraint(equalTo: superview.trailingAnchor, constant: ltPadding).isActive = true
+ item.topAnchor.constraint(equalTo: superview.topAnchor, constant: tbPadding + arrowPadding).isActive = true
+ item.bottomAnchor.constraint(greaterThanOrEqualTo: superview.bottomAnchor, constant: tbPadding).isActive = true
+ item.widthAnchor.constraint(equalTo: superview.widthAnchor, constant: -(ltPadding * 2)).isActive = true
+ item.heightAnchor.constraint(equalTo: superview.heightAnchor, constant: -(tbPadding * 2) - arrowPadding).isActive = true
+ } else if arrowDirection.rawValue == 4 { //.left {
+ item.leadingAnchor.constraint(equalTo: superview.leadingAnchor, constant: ltPadding + arrowPadding).isActive = true
+ item.trailingAnchor.constraint(equalTo: superview.trailingAnchor, constant: ltPadding).isActive = true
+ item.topAnchor.constraint(equalTo: superview.topAnchor, constant: tbPadding).isActive = true
+ item.bottomAnchor.constraint(greaterThanOrEqualTo: superview.bottomAnchor, constant: tbPadding).isActive = true
+ item.widthAnchor.constraint(equalTo: superview.widthAnchor, constant: -(ltPadding * 2) - arrowPadding).isActive = true
+ item.heightAnchor.constraint(equalTo: superview.heightAnchor, constant: -(tbPadding * 2)).isActive = true
+ } else if arrowDirection.rawValue == 8 { //.right {
+ item.leadingAnchor.constraint(equalTo: superview.leadingAnchor, constant: ltPadding).isActive = true
+ item.trailingAnchor.constraint(equalTo: superview.trailingAnchor, constant: ltPadding + arrowPadding).isActive = true
+ item.topAnchor.constraint(equalTo: superview.topAnchor, constant: tbPadding).isActive = true
+ item.bottomAnchor.constraint(greaterThanOrEqualTo: superview.bottomAnchor, constant: tbPadding).isActive = true
+ item.widthAnchor.constraint(equalTo: superview.widthAnchor, constant: -(ltPadding * 2) - arrowPadding).isActive = true
+ item.heightAnchor.constraint(equalTo: superview.heightAnchor, constant: -(tbPadding * 2)).isActive = true
+ } else {
+ // center if no arrows
+ item.leadingAnchor.constraint(equalTo: superview.leadingAnchor, constant: ltPadding).isActive = true
+ item.trailingAnchor.constraint(equalTo: superview.trailingAnchor, constant: ltPadding).isActive = true
+ item.topAnchor.constraint(equalTo: superview.topAnchor, constant: tbPadding).isActive = true
+ item.bottomAnchor.constraint(greaterThanOrEqualTo: superview.bottomAnchor, constant: tbPadding).isActive = true
+ item.widthAnchor.constraint(equalTo: superview.widthAnchor, constant: -(ltPadding * 2)).isActive = true
+ item.heightAnchor.constraint(equalTo: superview.heightAnchor, constant: -(tbPadding * 2)).isActive = true
+ }
+ }
+
+ @objc func handleTap(_ sender: UITapGestureRecognizer? = nil) {
+ self.dismiss(animated: true, completion: nil)
+ }
+
+ override func viewWillDisappear(_ animated: Bool) {
+ super.viewWillDisappear(animated)
+ UIViewController.existingPopover = nil
+
+ // restore dimmed sendingViewController
+ UIView.animate(withDuration: AntimationDuration.fadeInOut.rawValue, animations: {
+ self.sendingViewController?.view.alpha = 1
+ })
+ }
+}