Repeat AnimatorSet

Question

Is there a simple way to repeat a Android AnimatorSet (infinite)? Can I set a AnimationListener and restart the AnimatorSet by calling

Answer 1

No, you can't repeat AnimatorSet, you can only repeat of a single ObjectAnimator/ ValueAnimator

But you can use PropertyValuesHolder, so that you can make an ObjectAnimator from a set of PropertyValuesHolder

here's example

val translateY = PropertyValuesHolder.ofFloat(View.TRANSLATION_Y, -100f, 100f)
val alpha = PropertyValuesHolder.ofFloat(View.ALPHA, 0.3f, 0.7f)
val scaleX = PropertyValuesHolder.ofFloat(View.SCALE_X, 0.8f, 1.2f)
val scaleY = PropertyValuesHolder.ofFloat(View.SCALE_Y, 0.8f, 1.2f)
// and more

ObjectAnimator.ofPropertyValuesHolder(myView, translateY, alpha, scaleX, scaleY).apply {
    interpolator = AccelerateDecelerateInterpolator()
    // duration of each animation
    duration = 500L
    // repeat infinite count (you can put n times)
    repeatCount = ValueAnimator.INFINITE
    // reverse animation after finish
    repeatMode = ValueAnimator.REVERSE
    // start animation
    start()
}