Android Open Source - RadiusDev Login

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Back to project page RadiusDev.

License

The source code is released under:

MIT License

Java Source Code

package com.example.radiusdev;
/*w  w w  .  j a  va  2  s .  co  m*/
import java.util.ArrayList;
import java.util.List;

import org.apache.http.NameValuePair;
import org.apache.http.message.BasicNameValuePair;
import org.json.JSONException;
import org.json.JSONObject;


import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
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 implements OnClickListener{
  
  private EditText email, pwd;
  private Button mSubmit, mRegister;
  
  private PreferencesHelper appPrefs;
  private AppPreferenceActivity _appPrefs;
  //Progress Dialog
  private ProgressDialog pDialog;
  
  //JSON parser class
  JSONparser jsonParser = new JSONparser();
  
  //localhost
  //private static final String LOGIN_URL = "http://198.21.230.127:1234/webservice/login.php";
  //testing on emulator
  //private static final String LOGIN_URL = "http://10.0.2.2/webservice/login.php";
  
  //Mecca Server
  private static final String LOGIN_URL = "http://1meccaproduction.com/radiusServer/login.php";
  
  //JSON element ids from response of php script
  private static final String TAG_SUCCESS = "success";
  private static final String TAG_MESSAGE = "message";
  
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    _appPrefs= new AppPreferenceActivity(getApplicationContext());
    appPrefs = new PreferencesHelper(getApplicationContext());
    setContentView(R.layout.login);
    
    //setup input fields
    email = (EditText)findViewById(R.id.email);
    pwd = (EditText)findViewById(R.id.password);
    //setup buttons
    mSubmit = (Button)findViewById(R.id.login);
    mRegister = (Button)findViewById(R.id.register);
    //register listeners
    mSubmit.setOnClickListener(this);
    mRegister.setOnClickListener(this);
  }
  
  @Override
  public void onClick(View v) {
    if (v.getId() == R.id.login) {
      new AttemptLogin().execute();
    } else if (v.getId() == R.id.register) {
      Intent i = new Intent(this, Register.class);
      finish();
      startActivity(i);
    } else {
    }
  }
  
  //A seperate thread than the thread that runs the GUI
  //Any type of networking should be done with asynctask
  class AttemptLogin extends AsyncTask<String, String, String>{
    /* three methods get called, first preExecute, then do in 
       background, and once complete, the onPost execute method 
       will be called */
    boolean failure = false;
    
    
    @Override
    protected void onPreExecute(){
      super.onPreExecute();
      pDialog = new ProgressDialog(Login.this);
      pDialog.setMessage("Attempting login...");
      pDialog.setIndeterminate(false);
      pDialog.setCancelable(true);
      pDialog.show();
    }
    
    @Override
    protected String doInBackground(String... args){
      int success;
      String userID;
      String emailAddress = email.getText().toString();
      String password = pwd.getText().toString();
      try {
        List<NameValuePair> params = new ArrayList<NameValuePair>();
        params.add(new BasicNameValuePair("email", emailAddress));
        params.add(new BasicNameValuePair("password", password));
        
        Log.d("request!", "starting");
        //getting product details by making HTTP request
        JSONObject json = jsonParser.makeHttpRequest(LOGIN_URL, "POST", params);
        System.out.println(json);
        //check log for json response
          Log.d("Login attempt", json.toString());
        //json success tag
        success = json.getInt(TAG_SUCCESS);
        userID=json.getString("ID");
        if(success == 1) {
          Log.d("Login Successful!", json.toString());
          appPrefs.saveSomeString(emailAddress);
          appPrefs.saveSomeString(userID);
          _appPrefs.saveUserID(userID);
          Intent i = new Intent(Login.this, Main.class);
          finish();
          startActivity(i);
          return json.getString(TAG_MESSAGE);
        }else{
          Log.d("Login Failed!", json.getString(TAG_MESSAGE));
          return json.getString(TAG_MESSAGE);
        } 
      } catch(JSONException e){
        e.printStackTrace();
      }  
      return null;
    }
    
    protected void onPostExecute(String file_url) {
      //dismiss the dialog once product deleted
      pDialog.dismiss();
      if(file_url != null){
        Toast.makeText(Login.this, file_url, Toast.LENGTH_LONG).show();
      }
    }
  }
  
}

Java Source Code List

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