Login

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;

import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;

import android.app.Activity;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.widget.EditText;
import android.widget.Switch;
import android.widget.TextView;

public class Log_In extends Activity {
    EditText un;
    EditText pw;
    TextView fail;
    Switch remember;
    private String username, password;

    // private SharedPreferences loginPrefs;
    // private SharedPreferences.Editor loginEditor;
    // private Boolean loginSave;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_log_in);

        un = (EditText) findViewById(R.id.logIn_username_ID);
        pw = (EditText) findViewById(R.id.logIn_password_ID);
        remember = (Switch) findViewById(R.id.logIn_remember_ID);
        fail = (TextView) findViewById(R.id.logIn_fail_ID);

    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.log__in, menu);
        return true;
    }

    public void logInHandler(View view) {
        new LogMeIn().execute();
    }

    class LogMeIn extends AsyncTask<String, Void, String> {
        HttpClient client = new DefaultHttpClient();
        HttpPost post = new HttpPost("http://www.fakesite.com/login.php");

        protected String doInBackground(String... urls) {

            try {
                username = un.getText().toString();
                password = pw.getText().toString();
                List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(
                        3);
                nameValuePairs
                .add(new BasicNameValuePair("cmdSubmit", "Login"));
                nameValuePairs
                        .add(new BasicNameValuePair("username", username));
                nameValuePairs
                        .add(new BasicNameValuePair("password", password));
                post.setEntity(new UrlEncodedFormEntity(nameValuePairs));

                HttpResponse response = client.execute(post);
                String res = inputStream(response.getEntity().getContent())
                        .toString();
                Log.v("RESPONSE", res);

                // if username and password are valid, launch main activity
                if (res.toString() == "1") {
                    Intent logIn = new Intent(getApplicationContext(), Main.class);
                    startActivity(logIn);
                }
                // send the user a message saying the login failed
                else {
                    runOnUiThread(new Runnable() {
                        public void run() {
                            pw.setText("");
                            fail.setText(R.string.fail);
                        }
                    });
                }
            } catch (Exception e) {
                e.printStackTrace();
            }

            return null;
        }

        protected void onPostExecute(String file_url) {

        }
    }

    private StringBuilder inputStream(InputStream input) {
        String line = "";
        StringBuilder total = new StringBuilder();
        BufferedReader read = new BufferedReader(new InputStreamReader(input));

        try {
            while ((line = read.readLine()) != null) {
                total.append(line);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }

        return total;
    }

}