Answer by Shehata Gamal for How to animate a UIImage constraints in Swift 4

Hook the leading , trailing , CenterX OR CenterY constraint of the UIImageView and do this

self.imageLeadCon.constant = // valueUIView.animate(withDuration: 3.0 ,  animations: {   self.view.layoutIfNeeded()    // animation}, completion: { _ in    // completion})