package me.yoqi.android.qrcode.dao; import android.content.Context; import android.database.sqlite.SQLiteDatabase; import me.yoqi.android.qrcode.model.Config; /** * 用户表操作类 * * @author liuyuqi.gov@msn.cn * @date 2020-10-20 */ public class UserDao { private QRCodeOpenHelper openHelper; private SQLiteDatabase db; public UserDao(Context context) { openHelper = new QRCodeOpenHelper(context); db = openHelper.getReadableDatabase();//数据库对象 } public void addUser() { } public void addUsers() { } /** * 删除表 */ public void delete() { db.delete(Config.TABLE_USER, null, null); db.close(); } /** * 通过id更新用户表 * * @param id */ public void update(int id) { // TODO: 2020-10-20 } }