AnimationViewController.swift

// Definition of UILabels
@IBOutlet var easeInLabel: UILabel!
@IBOutlet var easeOutLabel: UILabel!
@IBOutlet var easeInOutLabel: UILabel!
@IBOutlet var linearLabel: UILabel!
@IBOutlet var transitionFlipFromLeftLabel: UILabel!
@IBOutlet var transitionFlipFromRightLabel: UILabel!
@IBOutlet var transitionCurlUpLabel: UILabel!
@IBOutlet var transitionCurlDownLabel: UILabel!
@IBOutlet var transitionCrossDissolveLabel: UILabel!
@IBOutlet var transitionFlipFromTopLabel: UILabel!
@IBOutlet var transitionFlipFromBottomLabel: UILabel!

// All animations are done with the same length of duration --- 1.0 second
let durationOfAnimationInSecond = 1.0 

@IBAction func startAnimationButtonAction(_ sender: UIButton) {
  // Curve animation
  curveAnimation(view: easeInLabel, animationOptions: .curveEaseIn, isReset: isAnimated)
  curveAnimation(view: easeOutLabel, animationOptions: .curveEaseOut, isReset: isAnimated)
  curveAnimation(view: easeInOutLabel, animationOptions: .curveEaseInOut, isReset: isAnimated)
  curveAnimation(view: linearLabel, animationOptions: .curveLinear, isReset: isAnimated)
    
  // Transition animation
  transitionAnimation(view: transitionFlipFromLeftLabel, animationOptions: .transitionFlipFromLeft, isReset: isAnimated)
  transitionAnimation(view: transitionFlipFromRightLabel, animationOptions: .transitionFlipFromRight, isReset: isAnimated)
  transitionAnimation(view: transitionCurlUpLabel, animationOptions: .transitionCurlUp, isReset: isAnimated)
  transitionAnimation(view: transitionCurlDownLabel, animationOptions: .transitionCurlDown, isReset: isAnimated)
  transitionAnimation(view: transitionCrossDissolveLabel, animationOptions: .transitionCrossDissolve, isReset: isAnimated)
  transitionAnimation(view: transitionFlipFromTopLabel, animationOptions: .transitionFlipFromTop, isReset: isAnimated)
  transitionAnimation(view: transitionFlipFromBottomLabel, animationOptions: .transitionFlipFromBottom, isReset: isAnimated)
  
  isAnimated.toggle()
}

func curveAnimation(view: UIView, animationOptions: UIView.AnimationOptions, isReset: Bool) {
  let defaultXMovement: CGFloat = 240
  UIView.animate(withDuration: durationOfAnimationInSecond, delay: 0, options: animationOptions, animations: {
    view.transform = isReset ? .identity : CGAffineTransform.identity.translatedBy(x: defaultXMovement, y: 0)
  }, completion: nil)
}
  
func transitionAnimation(view: UIView, animationOptions: UIView.AnimationOptions, isReset: Bool) {
  UIView.transition(with: view, duration: durationOfAnimationInSecond, options: animationOptions, animations: {
    view.backgroundColor = UIColor.init(named: isReset ? "darkGreen" :  "darkRed")
  }, completion: nil)
}