first, u have to create an adapter extending RecyclerView.Adapter class and a ViewHolder, extending RecyclerView.ViewHolder. Adapter and ViewHolder controls how your data will be displayed in RecyclerView. The best examples are in official Google docs on https://developer.android.com/training/material/lists-cards.html?hl=en
https://developer.android.com/guide/topics/ui/layout/recyclerview.html
solved About RecycleView [closed]