将Realm变量传递给适配器中的getView

Question

在我的主要活动中，我喜欢将结果值从另一个类传递给处理适配器类。然而，它撞毁了我。

语法正确，可以编译，但会崩溃 我的问题是，将SettingPosition从Setting类传递给学校类的School适配器是什么样的呢？

主要活动

    public class MainActivity extends AppCompatActivity {

    ....
    Setting setting = realm.where(Setting.class).findFirst();
    //radioPosition is from Setting Class
    Integer radioPosition = setting.getPosition();
    RealmResults<School> schools = realm.where(School.class).findAll();
    //schools is from School Class

    final SchoolAdapter adapter = new SchoolAdapter(this, R.id.schools_list, schools, Integer radioPosition, true);
    ....
   }

学校适配器：

public class SchoolAdapter extends RealmBaseAdapter<School> implements ListAdapter {

....
public SchoolAdapter(Context context, int resId, RealmResults<School> realmResults,  Integer radioPosition, boolean automaticUpdate) {

    super(context, realmResults,  automaticUpdate);

}

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

.....