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CKWaveCollectionViewTransition

This is a cool custom transition between two or more UICollectionViewControllers with wave-like cell animation. Could be used in e.g. galleries.

anim.gif

Animation idea was taken from Łukasz Frankiewicz Dribble project

Installation

There are two options:

  • Via CocoaPods.
  • Manually add the files into your Xcode project. Slightly simpler, but updates are also manual.

Usage

  • In storyboard add an object in your NavigationController.

object.jpg

  • Set it's class to NavigationControllerDelegate

objectCustomClass.jpg

  • Set NavigationController delegate to this object.

navigationControllerDelegateObject.jpg

or

Implement UINavigationControllerDelegate in your ViewController:

func navigationController(navigationController: UINavigationController, animationControllerForOperation operation: UINavigationControllerOperation,
        fromViewController fromVC: UIViewController, toViewController toVC: UIViewController) -> UIViewControllerAnimatedTransitioning? {
            let animator = CKWaveCollectionViewAnimator()
            if operation != UINavigationControllerOperation.Push {
                animator.reversed = true
            }

            return animator
    }
  • The last thing you have to set is selectedIndexPath property in your didSelectItemAtIndexPath method implementation.
override func collectionView(collectionView: UICollectionView, didSelectItemAtIndexPath indexPath: NSIndexPath) {
        selectedIndexPath = indexPath
}

Properties

internal let animationDuration: Double! = 1.0

Total animation duration.

internal let kCellAnimSmallDelta: Double! = 0.01
internal let kCellAnimBigDelta: Double! = 0.03

Properties you can change to adjust animation.

Requirements

  • iOS 7.0+

License

Released under the MIT license. See the LICENSE file for more info.