notifyDataSetChanged not working on RecyclerView

In your parseResponse() you are creating a new instance of the BusinessAdapter class, but you aren’t actually using it anywhere, so your RecyclerView doesn’t know the new instance exists.

You either need to:

• Call recyclerView.setAdapter(mBusinessAdapter) again to update the RecyclerView’s adapter reference to point to your new one
• Or just remove mBusinessAdapter = new BusinessAdapter(mBusinesses); to continue using the existing adapter. Since you haven’t changed the mBusinesses reference, the adapter will still use that array list and should update correctly when you call notifyDataSetChanged().