public class ItemAdapter extends ArrayAdapter<DemoModel> {
    private final List<DemoModel> items;
public AnswerItemAdapter(Context c, List<DemoModel> items) {
        super(c, 0, items);
        this.items = items;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
    //Do something...
return convertView;
    }

    public List<DemoModel> getItems() {
        return items;
    }

}

        List<ModeModel> items=ItemAdapter.getItems();