Recycler view showing single item
Don't use match_parent for height for your item view. One item fills whole screen vertically so you don't see another.
when you are creating row.xml for recyclerview should follow these things:
Always use "wrap_content" for the height of the row otherwise in "match_parent" it will occupy the whole screen for a single row.
You can also take the height in dp.
My mistake was I accidentally used:
LinearLayoutManager(context, LinearLayoutManager.HORIZONTAL, false)
instead of:
LinearLayoutManager(context, LinearLayoutManager.VERTICAL, false)