Created
February 22, 2018 12:18
-
-
Save SebastianOsinski/c20900783ba703baa9ae8acc0bcd5998 to your computer and use it in GitHub Desktop.
Thin wrapper for UIView.animateKeyframes
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
import UIKit | |
final class KeyframeAnimator { | |
private struct AnimationsData { | |
let animations: Animations | |
let relativeTimeStart: Double | |
let relativeDuration: Double | |
} | |
typealias Animations = () -> Void | |
private var animationsDataList = [AnimationsData]() | |
func addKeyframe(withRelativeStartTime relativeStartTime: Double, relativeDuration: Double, animations: @escaping Animations) -> KeyframeAnimator { | |
let data = AnimationsData( | |
animations: animations, | |
relativeTimeStart: relativeStartTime, | |
relativeDuration: relativeDuration | |
) | |
animationsDataList.append(data) | |
return self | |
} | |
func animate(withDuration duration: TimeInterval, delay: TimeInterval = 0.0, options: UIViewKeyframeAnimationOptions = [], completion: ((Bool) -> Void)? = nil) { | |
UIView.animateKeyframes( | |
withDuration: duration, | |
delay: delay, | |
options: options, | |
animations: { [animationsDataList] in | |
for data in animationsDataList { | |
UIView.addKeyframe( | |
withRelativeStartTime: data.relativeTimeStart, | |
relativeDuration: data.relativeDuration, | |
animations: data.animations | |
) | |
} | |
}, | |
completion: completion | |
) | |
animationsDataList = [] | |
} | |
} | |
extension UIView { | |
static var keyframeAnimator: KeyframeAnimator { | |
return KeyframeAnimator() | |
} | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment