change position UiButton with Animation Swift - swift

Question

i have a button in ViewController and i changed button position when clicked on that .
the question it is how to can move button to new position when Clicked with animation ?
this is view Controller :
override func viewDidLoad() {
super.viewDidLoad()
let X = 50
let Y = 100
let WIDTH = 100
let HEIGHT = 100
movable_Button.frame = CGRect(x: X, y: Y, width: WIDTH , height: HEIGHT)
}
this is change position method When clicked :
#IBAction func movable_Button_DidTouch(_ sender: Any) {
movable_Button.frame = CGRect(x: X + 150, y: Y + 150, width: 100, height: 100)
}

Answer 1

Let's use UIView animate block
#IBAction func movableButtonDidTouch(_ sender: Any) {
// Set initial frame here
UIView.animate(withDuration: 0.35) {
// Set final frame here
}
}
Please notice to remove underline (_) in function name, it's not the convention of Swift, use camel case instead.
Update
class ViewController: UIViewController {
var positions = [CGPoint]()
let width = 100.0
let height = 50.0
var index = 0
lazy var button: UIButton = {
let theButton = UIButton(type: .system)
theButton.frame = CGRect(x: 50, y: 50, width: self.width, height: self.height)
theButton.backgroundColor = .red
return theButton
}()
override func viewDidLoad() {
super.viewDidLoad()
self.view.addSubview(self.button)
for index in 1...4 {
let point = CGPoint(x: 50 * index, y: 50 * index)
self.positions.append(point)
}
}
#IBAction func changeButtonPosition(_ sender: AnyObject) {
UIView.animate(withDuration: 0.35) { [weak self] in
guard let self = self else { return }
self.index += 1
let point = self.positions[self.index % 4]
self.button.frame = CGRect(origin: point, size: CGSize(width: self.width, height: self.height))
}
}
}