How to update RecyclerView Adapter Data?

Question

Trying to figure out what is the issue with updating RecyclerView\'s Adapter.

After I get a new List of products, I tried to:

1. Update t

Answer 1

The best and the coolest way to add new data to the present data is

 ArrayList newItems = new ArrayList();
 newItems = getList();
 int oldListItemscount = alcontainerDetails.size();
 alcontainerDetails.addAll(newItems);           
 recyclerview.getAdapter().notifyItemChanged(oldListItemscount+1, al_containerDetails);