IssueTracker

I have a Kotlin Multiplatform set up where I have both an Android and an iOS app. Android leverages RecyclerView and iOS uses UITableView.

I really love the DiffUtil mechanism on Android side which allows to have amazing table updates. On iOS there is sadly only: https://developer.apple.com/documentation/swift/array/difference(from:by:) which isn't really great since you only get inserted & removed paths, but not changed. So if something changes, it is a remove followed by an insert, which causes a weird animation.

From an API point of side I'd only need this to be callable from iOS:

val diffResult = DiffUtil.calculateDiff(object : DiffUtil.Callback() {
  override fun getOldListSize() = error("")
  override fun getNewListSize() = error("")
  override fun areItemsTheSame(oldItemPosition: Int, newItemPosition: Int) = error("")
  override fun areContentsTheSame(oldItemPosition: Int, newItemPosition: Int) = error("")
})
diffResult.dispatchUpdatesTo(object : ListUpdateCallback {
  override fun onInserted(position: Int, count: Int) = error("")
  override fun onRemoved(position: Int, count: Int) = error("")
  override fun onMoved(fromPosition: Int, toPosition: Int) = error("")
  override fun onChanged(position: Int, count: Int, payload: Any?) = error("")
})