2022/3/10

 protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_register);
        et_userid_register = findViewById(R.id.et_userid_register);
        et_username_register = findViewById(R.id.et_username_register);
        et_password_register = findViewById(R.id.et_password_register);
        et_phone_register = findViewById(R.id.et_phone_register);
        et_class_register = findViewById(R.id.et_class_register);
        findViewById(R.id.btn_adduser).setOnClickListener(this);
        userDao = MyApplication.getInstance().getUserDatabase().userDao();

    }

    @Override
    public void onClick(View v) {
        String userid = et_userid_register.getText().toString();
        String username = et_username_register.getText().toString();
        String password = et_password_register.getText().toString();
        String phone = et_phone_register.getText().toString();
        String stuclass = et_class_register.getText().toString();
        UserInfo userInfo = new UserInfo();
        userInfo.setName(username);
        userInfo.setPassword(password);
        userInfo.setPhone(phone);
        userInfo.setStuclass(stuclass);
        userInfo.setStuid(userid);
        userDao.Insert(userInfo);
        ToastUtil.show(this,"注册成功");

    }

　　安卓注册页面