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您好我有點登錄問題實際上我試圖通過檢查用戶名從databse和編輯文本值，但其不工作。即將獲得EditTextvalueSQLite用戶名檢查與EditText值
package com.example.employeemanager;
import android.app.Activity;
import android.content.Intent;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
public class Login extends Activity {
SQLiteDatabase db;
EditText unameedt;
String unam;
String pass;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.login);
Button logbtn = (Button) findViewById(R.id.loginbtn);
Button signup = (Button) findViewById(R.id.signup);
EditText unameedt = (EditText) findViewById(R.id.editText1);
EditText passedt = (EditText) findViewById(R.id.editText2);
db = openOrCreateDatabase("Employeemanager", MODE_PRIVATE, null);
unam = unameedt.getText().toString();
pass = passedt.getText().toString();
logbtn.setOnClickListener(new OnClickListener()
{
public void onClick(View v) {
Cursor c = db.rawQuery(
"SELECT username, password from Employee", null);
if (c != null) {
if (c.moveToFirst()) {
do {
String uname = c.getString(c
.getColumnIndex("username"));
String upass = c.getString(c
.getColumnIndex("password"));
if (uname.equals(unam)) {
StartActivity(new Intent(Login.this, Home.class));
}
} while (c.moveToNext());
}
}
}
});
signup.setOnClickListener(new OnClickListener()
{
@Override
public void onClick(View v) {
startActivity(new Intent(Login.this, Emp_signup.class));
}
});
}
}