[iOS - swift] 포커스 애니메이션

화면을 탭 할 경우 초점 애니메이션

• UIImageView라는 임의의 뷰를 생성하여 애니메이션이 시작 시 addSubviews 후 끝날 때 removeFromSuperview()

extension UIView {
  func focusAnimationAt(_ point: CGPoint) {
          let focusView = UIImageView(image: UIImage(systemName: “포커스 사진 이름“))
          focusView.center = point
          focusView.alpha = 0.0
          view.addSubview(focusView)

          UIView.animate(withDuration: 0.25, delay: 0.0, options: .curveEaseInOut, animations: {
              focusView.alpha = 1.0
              focusView.transform = CGAffineTransform(scaleX: 1.25, y: 1.25)
          }) { (success) in
              UIView.animate(withDuration: 0.15, delay: 0.5, options: .curveEaseInOut, animations: {
                  focusView.alpha = 0.0
                  focusView.transform = CGAffineTransform(translationX: 0.6, y: 0.6)
              }) { (success) in
                  focusView.removeFromSuperview()
            }
        }
    }
}