Animate

1. Rotate view 180 degree

Code -  let anticlockAnimation = CABasicAnimation(keyPath: "transform.rotation")

        anticlockAnimation.fromValue = CGFloat.pi

        anticlockAnimation.toValue = 0

        anticlockAnimation.isAdditive = true

        anticlockAnimation.duration = 3.0

        self.imageview.layer.add(anticlockAnimation, forKey: "rotate")

        self.imageview.transform = CGAffineTransform(rotationAngle: -CGFloat.pi)

       

2.