UICollectionViewCell Shake

Question

I have created a UICollectionView and would like to have all the cells shake like the edit mode of the springboard on the iPhone. I have created my shake code but don\'t kno

Answer 1

Swift 5 Easy like this

Enter this 2 functions to your UICollectionViewCell and call it when ever you want to animate/stop, ex: cell render

func shake() {
    let shakeAnimation = CABasicAnimation(keyPath: "transform.rotation")
    shakeAnimation.duration = 0.05
    shakeAnimation.repeatCount = 2
    shakeAnimation.autoreverses = true
    let startAngle: Float = (-2) * 3.14159/180
    let stopAngle = -startAngle
    shakeAnimation.fromValue = NSNumber(value: startAngle as Float)
    shakeAnimation.toValue = NSNumber(value: 3 * stopAngle as Float)
    shakeAnimation.autoreverses = true
    shakeAnimation.duration = 0.15
    shakeAnimation.repeatCount = 10000
    shakeAnimation.timeOffset = 290 * drand48()

    let layer: CALayer = self.layer
    layer.add(shakeAnimation, forKey:"shaking")
}

func stopShaking() {
    let layer: CALayer = self.layer
    layer.removeAnimation(forKey: "shaking")
}

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