51 lines
1.8 KiB
Swift
51 lines
1.8 KiB
Swift
//
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// TransitionAnimator.swift
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// SideMenu
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//
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// Created by kukushi on 2018/8/8.
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// Copyright © 2018 kukushi. All rights reserved.
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//
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import UIKit
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// A Simple transition animator can be configured with animation options.
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public class BasicTransitionAnimator: NSObject, UIViewControllerAnimatedTransitioning {
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let animationOptions: UIView.AnimationOptions
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let duration: TimeInterval
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/// Initialize a new animator with animation options and duration.
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///
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/// - Parameters:
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/// - options: animation options
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/// - duration: animation duration
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public init(options: UIView.AnimationOptions = .transitionCrossDissolve, duration: TimeInterval = 0.4) {
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self.animationOptions = options
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self.duration = duration
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}
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// MARK: UIViewControllerAnimatedTransitioning
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public func transitionDuration(using transitionContext: UIViewControllerContextTransitioning?) -> TimeInterval {
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return duration
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}
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public func animateTransition(using transitionContext: UIViewControllerContextTransitioning) {
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guard let fromViewController = transitionContext.viewController(forKey: .from),
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let toViewController = transitionContext.viewController(forKey: .to) else {
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return
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}
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transitionContext.containerView.addSubview(toViewController.view)
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let duration = transitionDuration(using: transitionContext)
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UIView.transition(from: fromViewController.view,
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to: toViewController.view,
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duration: duration,
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options: animationOptions,
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completion: { (_) in
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transitionContext.completeTransition(!transitionContext.transitionWasCancelled)
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})
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}
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}
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