android 怎么把数据库表数据 写入二维数组

这个例子是将数据库中的数据存储到集合中
List<ContactInfo> list = new ArrayList<ContactInfo>();//ContactInfo实体类
SQLiteDatabase db = dbOpentHlpergetReadableDatabase();
String sql = "select from contactinfo";
Cursor cursor = dbrawQuery(sql, null);
while (cursormoveToNext()) {
int id = cursorgetInt(cursorgetColumnIndex("_id"));
String name = cursorgetString(cursorgetColumnIndex("name"));
String qq = cursorgetString(cursorgetColumnIndex("qq"));
String msn = cursorgetString(cursorgetColumnIndex("msn"));
String phone = cursorgetString(cursorgetColumnIndex("phone"));
listadd(new ContactInfo(id, name, qq, msn, phone));
}

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