AppViewHolder.kt

var currentVelocity = 0f

    /**
     * A [SpringAnimation] for this RecyclerView item. This animation rotates the view with a bouncy
     * spring configuration, resulting in the oscillation effect.
     *
     * The animation is started in [Recyclerview.onScrollListener].
     */
    val rotation: SpringAnimation = SpringAnimation(itemView, SpringAnimation.ROTATION)
        .setSpring(
            SpringForce()
                .setFinalPosition(0f)
                .setDampingRatio(SpringForce.DAMPING_RATIO_HIGH_BOUNCY)
                .setStiffness(SpringForce.STIFFNESS_LOW)
        )
        .addUpdateListener { _, _, velocity ->
            currentVelocity = velocity
        }

    /**
     * A [SpringAnimation] for this RecyclerView item. This animation is used to bring the item back
     * after the over-scroll effect.
     */
    val translationY: SpringAnimation = SpringAnimation(itemView, SpringAnimation.TRANSLATION_Y)
        .setSpring(
            SpringForce()
                .setFinalPosition(0f)
                .setDampingRatio(SpringForce.DAMPING_RATIO_MEDIUM_BOUNCY)
                .setStiffness(SpringForce.STIFFNESS_LOW)
        )