FakeAdapter.java

private class FakeAdapter extends RecyclerView.Adapter<FakeAdapter.VH> {

        private final LayoutInflater inflater;

        public FakeAdapter(Context context) {
            this.inflater = LayoutInflater.from(context);
        }

        @Override
        public VH onCreateViewHolder(ViewGroup parent, int viewType) {
            return new VH(inflater.inflate(android.R.layout.simple_list_item_1, parent, false));
        }

        @Override
        public void onBindViewHolder(VH holder, int position) {
            holder.text.setText("Pos: " + position);
        }

        @Override
        public int getItemCount() {
            return 100;
        }

        public class VH extends RecyclerView.ViewHolder {

            public TextView text;

            public VH(View itemView) {
                super(itemView);
                text = (TextView) itemView.findViewById(android.R.id.text1);
            }
        }
    }