从数据库中获取值，单击ListView的项目并将其显示在对话框中

Question

作为标题，我试图从SQLite数据库中获取值，点击ListView的Item。此ListView以DESC顺序显示数据库的每个值。单击它后，对话框应该显示该值的摘要。

这是onItemClick方法：

Val_List.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

            int pos = position + 1;

            String[] projection2 = {
                    _ID,
                    DiabeticContract.DiabeticEntry.COLUMN_GLYCAEMIA_VALUES,
                    DiabeticContract.DiabeticEntry.COLUMN_DATES,
            };

            Cursor cursor2 = db2.query(
                    DiabeticContract.DiabeticEntry.TABLE_NAME,   // The table to query
                    projection2,            // The columns to return
                    null,                  // The columns for the WHERE clause
                    null,                  // The values for the WHERE clause
                    null,                  // Don't group the rows
                    null,                  // Don't filter by row groups
                    null);                   // The sort order

            cursor2.move(pos);

            String date, notes;
            int g_val = 0;

            g_val = cursor2.getInt(cursor2.getColumnIndexOrThrow(DiabeticContract.DiabeticEntry.COLUMN_GLYCAEMIA_VALUES));
            date = cursor2.getString(cursor2.getColumnIndexOrThrow(DiabeticContract.DiabeticEntry.COLUMN_DATES));
            //notes = cursor2.getString(cursor2.getColumnIndexOrThrow(DiabeticContract.DiabeticEntry.COLUMN_NOTES));


            customDialog(DIALOG_TITLE, date, "");
            cursor2.close();
        }

    });

问题是，如果我点击列表视图中的第一个项目，该位置等于1，它将获取数据库第一行中的值，而不是最后一行。

我该如何解决？

非常感谢！

编辑：

public class DiabeticCursorAdapter extends CursorAdapter
{

    private ImageView check;

    public int glyc_value;
    public String glyc_date;
    public DiabeticCursorAdapter(Context context, Cursor c) {
        super(context, c,0);
    }


    @Override
    public View newView(Context context, Cursor cursor, ViewGroup parent) {
        return LayoutInflater.from(context).inflate(R.layout.gly_item_list, parent, false);
    }

    @Override
    public void bindView(View view, Context context, Cursor cursor)
    {
        TextView glycaemia_value = (TextView) view.findViewById(R.id.Glyc_value);
        TextView test_date = (TextView) view.findViewById (R.id.Date_time);
        check = (ImageView) view.findViewById(R.id.check_view);

        glyc_value = cursor.getInt(cursor.getColumnIndexOrThrow(DiabeticContract.DiabeticEntry.COLUMN_GLYCAEMIA_VALUES));
        glyc_date = cursor.getString(cursor.getColumnIndexOrThrow(DiabeticContract.DiabeticEntry.COLUMN_DATES));

        checkVal(glyc_value);
        glycaemia_value.setText("Glycaemia Value : " + glyc_value + " mg/dl");
        test_date.setText("Added : " + glyc_date);

    }

    private void checkVal(int n)
    {
        if (n< 75 || n >= 125)
        {
            check.setImageResource(R.drawable.check_red);
        } else
            if (n >= 75 && n <100)
            {
                check.setImageResource(R.drawable.check_green);
            } else
                if (n >= 100 && n < 125)
                {
                    check.setImageResource(R.drawable.check_yellow);
                }
    }
}

编辑2：列表视图方法上的显示

private void DisplayDataValues() {

        SQLiteDatabase db = mDbHelper.getReadableDatabase();

        String[] projection = {
                _ID,
                DiabeticContract.DiabeticEntry.COLUMN_GLYCAEMIA_VALUES,
                DiabeticContract.DiabeticEntry.COLUMN_DATES,
                DiabeticContract.DiabeticEntry.COLUMN_NOTES,
        };

        // Perform a query on the pets table
        Cursor curs = db.query(
                DiabeticContract.DiabeticEntry.TABLE_NAME,   // The table to query
                projection,            // The columns to return
                null,                  // The columns for the WHERE clause
                null,                  // The values for the WHERE clause
                null,                  // Don't group the rows
                null,                  // Don't filter by row groups
                _ID + " DESC");                   // The sort order


        DiabeticCursorAdapter adapter = new DiabeticCursorAdapter(this, curs);

        Val_List.setAdapter(adapter);

    }

编辑3：这是解决方案:(感谢@Mike M。）

Val_List.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

                int pos = position;

                curs.moveToPosition(pos);

                String date, notes;
                int g_val;

                g_val = curs.getInt(curs.getColumnIndexOrThrow(DiabeticContract.DiabeticEntry.COLUMN_GLYCAEMIA_VALUES));
                date = curs.getString(curs.getColumnIndexOrThrow(DiabeticContract.DiabeticEntry.COLUMN_DATES));
                notes = curs.getString(curs.getColumnIndexOrThrow(DiabeticContract.DiabeticEntry.COLUMN_NOTES));


                customDialog(DIALOG_TITLE, date, g_val, notes, "");
            }

        });