iOS 动画化UIView
示例
let view = UIView(frame: CGRect(x: 0, y: 0, width: 100, height: 100))
view.backgroundColor = UIColor.orange
self.view.addSubview(view)
UIView.animate(withDuration: 0.75, delay: 0.5, options: .curveEaseIn, animations: {
//这将导致视图从(0,0)转到
//(self.view.frame.origin.x,self.view.frame.origin.y)
view.frame.origin.x = self.view.frame.origin.x
view.frame.origin.y = self.view.frame.origin.y
}) { (finished) in
view.backgroundColor= UIColor.blueColor()
}