86 lines
3.2 KiB
Swift
86 lines
3.2 KiB
Swift
//
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// PauseStoryboardSegue.swift
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// Delta
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//
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// Created by Riley Testut on 12/21/15.
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// Copyright © 2015 Riley Testut. All rights reserved.
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//
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import UIKit
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class PauseStoryboardSegue: UIStoryboardSegue
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{
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private let animator: UIViewPropertyAnimator
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private let presentationController: PausePresentationController
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override init(identifier: String?, source: UIViewController, destination: UIViewController)
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{
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let timingParameters = UISpringTimingParameters(mass: 3.0, stiffness: 750, damping: 65, initialVelocity: CGVector(dx: 0, dy: 0))
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self.animator = UIViewPropertyAnimator(duration: 0, timingParameters: timingParameters)
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self.presentationController = PausePresentationController(presentedViewController: destination, presenting: source)
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super.init(identifier: identifier, source: source, destination: destination)
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}
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override func perform()
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{
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self.destination.transitioningDelegate = self
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self.destination.modalPresentationStyle = .custom
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self.destination.modalPresentationCapturesStatusBarAppearance = true
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// We need to force layout of destinationViewController.view _before_ animateTransition(using:)
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// Otherwise, we'll get "Unable to simultaneously satisfy constraints" errors
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self.destination.view.frame = self.source.view.frame
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self.destination.view.layoutIfNeeded()
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super.perform()
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}
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}
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extension PauseStoryboardSegue: UIViewControllerTransitioningDelegate
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{
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func animationController(forPresented presented: UIViewController, presenting: UIViewController, source: UIViewController) -> UIViewControllerAnimatedTransitioning?
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{
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return self
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}
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func animationController(forDismissed dismissed: UIViewController) -> UIViewControllerAnimatedTransitioning?
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{
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return nil
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}
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func presentationController(forPresented presentedViewController: UIViewController, presenting presentingViewController: UIViewController?, source: UIViewController) -> UIPresentationController?
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{
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return self.presentationController
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}
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}
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extension PauseStoryboardSegue: UIViewControllerAnimatedTransitioning
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{
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func transitionDuration(using transitionContext: UIViewControllerContextTransitioning?) -> TimeInterval
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{
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return self.animator.duration
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}
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func animateTransition(using transitionContext: UIViewControllerContextTransitioning)
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{
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let presentedView = transitionContext.view(forKey: UITransitionContextToViewKey)!
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let presentedViewController = transitionContext.viewController(forKey: UITransitionContextToViewControllerKey)!
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presentedView.frame = transitionContext.finalFrame(for: presentedViewController)
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presentedView.frame.origin.y = transitionContext.containerView.bounds.height
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transitionContext.containerView.addSubview(presentedView)
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self.animator.addAnimations { [unowned self] in
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presentedView.frame = self.presentationController.frameOfPresentedViewInContainerView
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}
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self.animator.addCompletion { position in
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transitionContext.completeTransition(position == .end)
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}
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self.animator.startAnimation()
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}
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}
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