如何使用UIViewPropertyAnimator旋转360度

Question

如果我想通过UIViewPropertyAnimator利用用户交互动画的优势，我如何按顺时针方向制作360度的对象动画？

// Does not animate
let animator = UIViewPropertyAnimator(duration: 2, curve: .linear) {
    let radians = Angle(360).radians // 6.28318530717959
    view.transform = view.transform.rotated(by: CGFloat(radians))
}
// (Using RxSwift to handle the user interaction via UISlider, 
// but that can be ignored as an implementation detail for this question.)
let scrubs = slider.rx.value.asDriver()
scrubs.drive(onNext: { (value:Float) -> Void in
    animator.fractionComplete = CGFloat(value)
})