Move a view Swift

We want a view like button move down 100dp, use this in viewDidLoad.

UIView.animateWithDuration(0.4, animations: {

self.button.center.y += 100

 })

To make it move across screen, use

self.button.center.x += 100

To make it diagonal move, use both of them.

To make it move forward and back.

let op = UIViewAnimationOptions.Repeat

let rig = self.button.center.x

UIView.animateWithDuration(1, delay: 0, options: op, animations: {

self.button.center.x += 100

            }, completion: {

_in

self.button.center.x = rig

        })

To make it jump to another position at 100dp distance, use

let op = UIViewAnimationOptions.Repeat

UIView.animateWithDuration(0.8, delay: 0,

                                   usingSpringWithDamping: 0.7,

                                   initialSpringVelocity: 20,

                                   options: op,

                                   animations: {

self.button.center.x += 100

            }, completion: nil)

To make it move along with user finger when they touch on it, create a function.

func hand(sender: UIPanGestureRecognizer){

if sender.state != .Ended&& sender.state != .Failed{

let location = sender.locationInView(sender.view!.superview!)

            sender.view!.center = location

        }

    }

Add these lines in viewDidLoad.

let t = UIPanGestureRecognizer(target:self, action:#selector(ViewController.hand(_:)))

button.addGestureRecognizer(t)