Login.java

package com.example.login;

    import java.util.ArrayList;

    import org.apache.http.NameValuePair;
    import org.apache.http.message.BasicNameValuePair;

    import android.app.Activity;
    import android.os.Bundle;
    import android.view.View;
    import android.widget.Button;
    import android.widget.EditText;
    import android.widget.TextView;

    public class LoginLayout extends Activity {

       EditText un,pw;
       TextView error;
       Button ok;


        /** Called when the activity is first created. */

       @Override


        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.main);

            un=(EditText)findViewById(R.id.et_un);

            pw=(EditText)findViewById(R.id.et_pw);

            ok=(Button)findViewById(R.id.btn_login);

            error=(TextView)findViewById(R.id.tv_error);

            ok.setOnClickListener(new View.OnClickListener() {

             @Override

             public void onClick(View v) {

                // TODO Auto-generated method stub

                ArrayList<NameValuePair> postParameters = new ArrayList<NameValuePair>();

                postParameters.add(new BasicNameValuePair("username", un.getText().toString()));

                postParameters.add(new BasicNameValuePair("password", pw.getText().toString()));

    /*            String valid = "1";*/

                String response = null;

                try {

                   response = CustomHttpClient.executeHttpPost("http://127.0.0.1/es/check.php", postParameters);

                   String res = response.toString();

                   //res = res.trim();

                   res = res.replaceAll("\\s+","");

                   // error.setText(res);

                   if (res.equals("1")) error.setText("Correct Username or Password");

                   else error.setText("Sorry!! Wrong Username or Password Entered");

                }

                catch (Exception e) {

                   un.setText(e.toString());

                }

             }


          });
        }
    }