Android: Spinner adapter

public class SpinnerAdapter extends BaseAdapter {

    private Context context;
    private List<Object> items;

    public FacilitySpinnerAdapter(Context context, List<Object> items) {
        this.context = context;
        this.items = items;
    }

    @Override
    public int getCount() {
        return items.size();
    }

    @Override
    public Object getItem(int position) {
        return items.get(position);
    }

    @Override
    public long getItemId(int position) {
        return getItem(position).getId();
    }

// View to be displayed when the spinner is closed
    @Override
    public View getView(int position, View convertView, ViewGroup parent) {

        if (convertView == null) {
            convertView = LayoutInflater.from(context).inflate(R.layout.closed_row, null);
        }

        //...

        return convertView;
    }

    @Override
    public View getDropDownView(int position, View convertView, ViewGroup parent) {

        if (convertView == null) {
            convertView = LayoutInflater.from(context).inflate(R.layout.drop_down_row, null);
        }

        //...

        return convertView;
    }
}