private var iconProgress = 0f
    set(value) {
    if (field != value) {
        field = value

        val iconOffset = lerp(0f, iconRadius - iconCollapsedWidth / 2, value)
        iconRect.left = width - switcherCornerRadius - iconCollapsedWidth / 2 - iconOffset
        iconRect.right = width - switcherCornerRadius + iconCollapsedWidth / 2 + iconOffset

        postInvalidateOnAnimation()
    }
}