我正在工作sqlite.i成功创建数据库和table.and我也可以注册一些新用户 . 我也用户名写入登录功能只是这是我的代码的一部分

public String getSinlgeEntry(String username) {

Cursor cursor = db.query(usm_Users, null, " UserName=?",

new String[] { username }, null, null, null);

if (cursor.getCount() < 1) // UserName Not Exist

{

cursor.close();

return "NOT EXIST";

}

cursor.moveToFirst();

String customername = cursor.getString(cursor

.getColumnIndex("UserName"));

cursor.close();

return customername;

}

String username=namefild.getText().toString();

String password=passwordfild.getText().toString();

String storedusername=loginDataBaseAdapter.getSinlgeEntry(username);

if(username.equals(storedusername))

{

Toast.makeText(MainActivity.this, "Congrats: Login Successfully", Toast.LENGTH_LONG).show();

Intent ii=new Intent(MainActivity.this,Home.class);

startActivity(ii);

}

else

if(username.equals("")){

Toast.makeText(MainActivity.this, "Please Enter Your Password", Toast.LENGTH_LONG).show();

}

else

{

Toast.makeText(MainActivity.this, "Password Incorrect", Toast.LENGTH_LONG).show();

}

}

我可以检查登录只有username.how我可以写两个参数功能巫婆可以一起检查用户名和密码吗？

public String getSinlgeEntry(String username,String password) {

Cursor cursor = db.query(usm_Users, null, " UserName=?",

new String[] { username }, null, null, null);

if (cursor.getCount() < 1) // UserName Not Exist

{

cursor.close();

return "NOT EXIST";

}

cursor.moveToFirst();

String customername = cursor.getString(cursor

.getColumnIndex("UserName"));

cursor.close();

return customername;

}

我必须改变我的光标 . 如果有人知道解决方案，请帮助我