class DataAdapter extends RecyclerView.Adapter<DataAdapter.ViewHolder>
{
    private LayoutInflater inflater;
    private List<My_data> mydata;

    DataAdapter(Context context, List<My_data> mydata)
    {
        this.mydata = mydata;
        this.inflater = LayoutInflater.from(context);
    }
    @Override
    public DataAdapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType)
    {

        View view = inflater.inflate(R.layout.list_item, parent, false);
        return new ViewHolder(view);
    }

    @Override
    public void onBindViewHolder(DataAdapter.ViewHolder holder, int position)
    {
        My_data my_data = mydata.get(position);
        holder.nameView.setText(my_data.getName());
    }

    @Override
    public int getItemCount()
    {
        return mydata.size();
    }

    /*@Override public int getItemViewType(int position){}*/

    public class ViewHolder extends RecyclerView.ViewHolder
    {
        final TextView nameView;
        ViewHolder(View view)
        {
            super(view);
            nameView = (TextView) view.findViewById(R.id.name);
        }
    }
}