Kotlin DiffUtil extensions

DiffUtilExt.kt

fun <T> RecyclerView.Adapter<*>.autoNotify(
    oldList: List<T>,
    newList: List<T>,
    compare: (old: T, new: T) -> Boolean
) {
    val diff = DiffUtil.calculateDiff(object : DiffUtil.Callback() {

        override fun areItemsTheSame(oldItemPosition: Int, newItemPosition: Int): Boolean {
            return compare(oldList[oldItemPosition], newList[newItemPosition])
        }

        override fun areContentsTheSame(oldItemPosition: Int, newItemPosition: Int): Boolean {
            return oldList[oldItemPosition] == newList[newItemPosition]
        }

        override fun getOldListSize() = oldList.size

        override fun getNewListSize() = newList.size
    })

    diff.dispatchUpdatesTo(this)
}