public class gradeRealmAdapter extends RealmBaseAdapter<Grade, GradeViewHolder> {

    private RealmResults<Grade> realmResults;

    public gradeRealmAdapter (
            Context context,
            RealmResults<Grade> realmResults,
            boolean automaticUpdate
    ) {
        super(context, realmResults, automaticUpdate);
        this.realmResults = realmResults;
    }

    public View getView(int position, View convertView, ViewGroup parent) {
        GradeViewHolder viewHolder;
        if(convertView == null) {
            convertView = inflater.inflate(android.R.layout.simple_list_item_1, parent, false);
            viewHolder = new GradeViewHolder();
            viewHolder.gradeTextView = (TextView) convertView.findViewById(android.R.id.text1);
            convertView.setTag(viewHolder);
        } else {
            viewHolder = (GradeViewHolder) convertView.getTag();
        }

        Grade item = realmResults.get(position);
        viewHolder.gradeTextView.setText(item.toString());
        return convertView;

    }

    private class GradeViewHolder {
        TextView gradeTextView;
    }

    public RealmResults<Grade> getRealmResults() {
        return realmResults;
    }

}