Animating item changes in RecyclerView doesn't work

I’m using version 3.0.6

I call playAnimation() in onBindViewHolder() to play animation.

It works when I add item to RecyclerView, but does not work when there’s some changes and call notifyItemChanged().

After a while, I noticed that there’s some checks in LottieAnimationView.playAnimation().

if (isShown()) {
  lottieDrawable.playAnimation();
  enableOrDisableHardwareLayer();
} else {
  wasAnimatingWhenNotShown = true;
}

So I tried some debugs on it, and discovered that isShown() always returns false.

In order to play animation anyway, I should call LottieDrawable.playAnimation() directly, something like this:

fun LottieAnimationView.forcePlay() {
    (drawable as? LottieDrawable)?.playAnimation()
}

Is this an intended behavior, or not?

[venjirai]

I have the same problem. playAnimation inside onBindViewHolder does not work. I only works if I post it on the main thread.

lav.post(() -> lav.playAnimation());

[gpeal]

I think this is a duplicate of #1324 which has more info