Android ValueAnimator ImageView animate() rotation,Kotlin
            
            
              Kotlin
              
              
            
          
              private fun myAnim() {
        val mDuration = 450L
        var animatedValue: Float
        val valueAnimator = ValueAnimator.ofFloat(0f, 1f)
        valueAnimator.duration = mDuration
        valueAnimator.interpolator = LinearInterpolator()
        valueAnimator.addUpdateListener(object : ValueAnimator.AnimatorUpdateListener {
            override fun onAnimationUpdate(animation: ValueAnimator) {
                animatedValue = animation.animatedValue as Float
                mImageView?.animate()?.rotation(90 * animatedValue)
            }
        })
        valueAnimator.start()
    }