User Interaction Enabled With CAAnimation?

Question

It is very easy to allow users to interact with views while animating using the options field of block based animation. But in my program I am using a CAKeyframeAnimation and I

Answer 1

Apparently, preview solution no longer works in Swift 3.x and Swift 4.x

I solved the issue setting a Timer to update the frame during the animation.

//Timer: To update the UI frame
    Timer.scheduledTimer(timeInterval: 0.15, target: self, selector: #selector(updateFrame), userInfo: nil, repeats: true)

//Timer Selector
@objc func updateFrame(){
   //getting the layer presentation bounds
    let layer = "button, label...".layer.presentation()!

    let point = CGPoint(x: layer.frame.origin.x, y: layer.frame.origin.y)
    let size = CGSize(width: layer.frame.width, height: layer.frame.height)
    // Update the UI element frame location
    "ui element".frame = CGRect(origin: point, size: size)
}