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| 1 | +// |
| 2 | +// SlideRightThenPopTransitionAnimator.swift |
| 3 | +// Interests |
| 4 | +// |
| 5 | +// Created by lsecrease on 11/7/15. |
| 6 | +// Copyright (c) 2015 ImagineME. All rights reserved. |
| 7 | +// |
| 8 | + |
| 9 | +import UIKit |
| 10 | + |
| 11 | +class SlideRightThenPopTransitionAnimator: NSObject { |
| 12 | + |
| 13 | + |
| 14 | + var duration = 0.6 |
| 15 | + private var isPresenting = false |
| 16 | + |
| 17 | + |
| 18 | + |
| 19 | +} |
| 20 | + |
| 21 | + |
| 22 | +extension SlideRightThenPopTransitionAnimator : UIViewControllerTransitioningDelegate |
| 23 | +{ |
| 24 | + func animationControllerForDismissedController(dismissed: UIViewController) -> UIViewControllerAnimatedTransitioning? |
| 25 | + { |
| 26 | + isPresenting = false // because we are dismissing |
| 27 | + return self |
| 28 | + } |
| 29 | + |
| 30 | + func animationControllerForPresentedController(presented: UIViewController, presentingController presenting: UIViewController, sourceController source: UIViewController) -> UIViewControllerAnimatedTransitioning? |
| 31 | + { |
| 32 | + isPresenting = true |
| 33 | + return self |
| 34 | + } |
| 35 | +} |
| 36 | + |
| 37 | + |
| 38 | +extension SlideRightThenPopTransitionAnimator : UIViewControllerAnimatedTransitioning |
| 39 | +{ |
| 40 | + func transitionDuration(transitionContext: UIViewControllerContextTransitioning?) -> NSTimeInterval { |
| 41 | + return duration |
| 42 | + } |
| 43 | + |
| 44 | + func animateTransition(transitionContext: UIViewControllerContextTransitioning) |
| 45 | + { |
| 46 | + let fromView = transitionContext.viewForKey(UITransitionContextFromViewKey)! |
| 47 | + let toView = transitionContext.viewForKey(UITransitionContextToViewKey)! |
| 48 | + let containerView = transitionContext.containerView()//! |
| 49 | + |
| 50 | + let offScreenLeft = CGAffineTransformMakeTranslation(-containerView!.frame.width, 0) |
| 51 | + let offScreenRight = CGAffineTransformMakeTranslation(containerView!.frame.width, 0) |
| 52 | + let minimize = CGAffineTransformMakeScale(0.5, 0.5) |
| 53 | + let minimizeAndOffScreenLeft = CGAffineTransformConcat(minimize, offScreenLeft) |
| 54 | + |
| 55 | + if isPresenting { |
| 56 | + toView.transform = minimizeAndOffScreenLeft |
| 57 | + } |
| 58 | + |
| 59 | + if isPresenting { |
| 60 | + containerView!.addSubview(fromView) |
| 61 | + containerView!.addSubview(toView) |
| 62 | + } else { |
| 63 | + containerView!.addSubview(toView) |
| 64 | + containerView!.addSubview(fromView) |
| 65 | + } |
| 66 | + |
| 67 | + UIView.animateWithDuration( duration, delay: 0, usingSpringWithDamping: 0.8, initialSpringVelocity: 0.4, options: [], animations: { () -> Void in |
| 68 | + |
| 69 | + let backToMainScreen = CGAffineTransformMakeTranslation(0, 0) |
| 70 | + if self.isPresenting { |
| 71 | + toView.transform = CGAffineTransformConcat(minimize, backToMainScreen) |
| 72 | + fromView.transform = offScreenRight |
| 73 | + } else { |
| 74 | + fromView.transform = CGAffineTransformConcat(minimize, offScreenRight) |
| 75 | + } |
| 76 | + |
| 77 | + }, completion: nil) |
| 78 | + |
| 79 | + UIView.animateWithDuration(duration/2.0, delay: duration, usingSpringWithDamping: 0.8, initialSpringVelocity: 0.4, options: [], animations: { () -> Void in |
| 80 | + |
| 81 | + if self.isPresenting { |
| 82 | + toView.transform = CGAffineTransformIdentity |
| 83 | + } else { |
| 84 | + fromView.transform = minimizeAndOffScreenLeft |
| 85 | + toView.transform = CGAffineTransformIdentity |
| 86 | + } |
| 87 | + |
| 88 | + }) { (finished) -> Void in |
| 89 | + if finished { |
| 90 | + transitionContext.completeTransition(true) |
| 91 | + } |
| 92 | + } |
| 93 | + } |
| 94 | +} |
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