如何在Kotlin中将侦听器添加到ObjectAnimator？

Question

我做了这样的事情

val animator = ObjectAnimator.ofFloat(view, "translationY", 350f,0f)
    animator.duration = 500
    animator.startDelay=200
    animator.interpolator =AccelerateDecelerateInterpolator()
    animator.start()

现在，我正在尝试将侦听器添加到此适配器。我已经尝试过了，

animator.addListener(onStart = {view.visibility=View.VISIBLE})

但不起作用。

Answer 1

val animator = ObjectAnimator.ofFloat(view, "translationY", 350f, 0f)
animator.apply {
    duration = 500
    startDelay = 200
    animator.addListener(onStart = {
        view.visibility = View.VISIBLE
    })
    AccelerateDecelerateInterpolator()
    start()
}