如何在Kotlin中循环一个按钮的动画？

import android.animation.AnimatorSet
import android.animation.ObjectAnimator
import android.view.View

fun startButtonAnimation(button: View) {
    val scaleX = ObjectAnimator.ofFloat(button, "scaleX", 1f, 0.5f, 1f)
    val scaleY = ObjectAnimator.ofFloat(button, "scaleY", 1f, 0.5f, 1f)
    val alpha = ObjectAnimator.ofFloat(button, "alpha", 1f, 0.5f, 1f)

    val animatorSet = AnimatorSet()
    animatorSet.playTogether(scaleX, scaleY, alpha)
    animatorSet.duration = 1000
    animatorSet.startDelay = 500
    animatorSet.start()
}

val myButton = findViewById<Button>(R.id.my_button)
startButtonAnimation(myButton)