RvComposeStopAnimatable.kt

// Copyright 2022 Google LLC.	
// SPDX-License-Identifier: Apache-2.0

class ComposeItemRow @JvmOverloads constructor(
    context: Context,
    attrs: AttributeSet? = null,
    defStyle: Int = 0
) : AbstractComposeView(context, attrs, defStyle) {

    // …

    // State hoist animatable object so that it can be explicitly stopped
    val animatable = Animatable(Color.Gray)

    @Composable
    override fun Content() {
        key(index) {
            ItemRow(index, animatable)
        }
    }
}

class MainAdapter : RecyclerView.Adapter<MainAdapter.ViewHolder>() {

    // …
    
    override fun onViewDetachedFromWindow(holder: ViewHolder) {
        super.onViewDetachedFromWindow(holder)
        // Stop the animation when the view gets detached
        viewLifecycleOwner.lifecycleScope.launch {
            holder.itemRow.animatable.stop()
        }
    }
}