IssueTracker

Component used: RecyclerView, CustomView

issue :

ReDrawing everyThing on notifyItemChanged :

CustomView (extension of View) with recyclerView, Rather than updating the item, notifyItemChanged(position) calls onDraw(Canvas c) for every item in the recyclerView.

However, All other items will remain untouched if I call invalidate() to update my view. Therefore, it is possible to update one item and not update the others.

Are we not wasting resources by doing this?

Sample attached and also can be found in (here)

in the sample with redrawing item text color will change. and clicking on a item will call notifyItemChanged for that item.