marekkrzynowek

let bigSquare = UIView(frame: CGRect(x: 0, y: 0, width: 120, height: 120))
bigSquare.backgroundColor = UIColor.green

let smallSquare = UIView(frame: CGRect(x: 0, y: 0, width: 40, height: 40))
bigSquare.addSubview(smallSquare)
smallSquare.backgroundColor = UIColor.blue

marekkrzynowek

smallSquare.frame = CGRect(x: 0, y: 0, width: 40, height: 40)

marekkrzynowek

smallSquare.frame = CGRect(x: 20, y: 20, width: 80, height: 80)

marekkrzynowek

UIView.animate(withDuration: 1) { 
  smallSquare.layer.position = CGPoint(x: 60, y: 60)
}

marekkrzynowek

UIView.animate(withDuration: 1) { 
  myView.frame = CGRect(x: 60, y: 60, width: 100, height: 100)
}

marekkrzynowek

UIView.animate(withDuration: 1) { 
  smallSquare.layer.position = CGPoint(x: 60, y: 60)
  smallSquare.transform = CGAffineTransform.identity.scaledBy(x: 2, y: 2)
}

marekkrzynowek

  func animateTo(frame: CGRect, withDuration duration: TimeInterval, completion: ((Bool) -> Void)? = nil) {
    guard let _ = superview else {
      return
    }
    
    let xScale = frame.size.width / self.frame.size.width
    let yScale = frame.size.height / self.frame.size.height
    let x = frame.origin.x + (self.frame.width * xScale)/2
    let y = frame.origin.y + (self.frame.height * yScale)/2
    UIView.animate(withDuration: duration, delay: 0, options: .curveLinear, animations: {

marekkrzynowek

smallSquare.animateTo(frame: CGRect(x: 60, y: 60, width: 80, height: 80), withDuration: 1)

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let x = frame.origin.x + (self.frame.width * xScale)/2
let y = frame.origin.y + (self.frame.height * yScale)/2

marekkrzynowek

let x = frame.origin.x + (self.frame.width * xScale) * self.layer.anchorPoint.x
let y = frame.origin.y + (self.frame.height * yScale) * self.layer.anchorPoint.y