Android Open Source - VisEQ Host Activity

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License

The source code is released under:
Copyright (c) 2012, Spotify AB All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:...
If you think the Android project VisEQ listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.
Java Source Code

package com.lsu.vizeq;
//from   w ww  .j a  va2  s.c  om
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.List;
import java.util.Locale;

import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;

import redis.clients.jedis.Jedis;
import redis.clients.jedis.exceptions.JedisConnectionException;
import android.app.ActionBar;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.graphics.Typeface;
import android.graphics.drawable.ColorDrawable;
import android.location.Address;
import android.location.Geocoder;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.net.wifi.WifiManager;
import android.os.AsyncTask;
import android.os.Bundle;
import android.text.format.Formatter;
import android.view.Menu;
import android.view.MenuItem;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import android.view.inputmethod.InputMethodManager;
import android.widget.Button;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.RelativeLayout;
import android.widget.TextView;

public class HostActivity extends BackableActivity
{
  public LocationManager locationManager;
  ActionBar actionBar;
  String myName, zipcode, externalIp;
  MyApplication myapp;
  Location currLocation = null;  
  
  @Override
  protected void onStart(){
    super.onStart();
    actionBar = getActionBar();
    actionBar.setBackgroundDrawable(new ColorDrawable(getResources().getColor(R.color.LightGreen)));

    RelativeLayout rl = (RelativeLayout) findViewById(R.id.hostBackground);
    SharedPreferences memory = getSharedPreferences("VizEQ",MODE_PRIVATE);
    int posi = memory.getInt("colorPos", -1);
    if (posi > 0) VizEQ.numRand = posi;    
    switch (VizEQ.numRand)
    {
      case 1:
        actionBar.setBackgroundDrawable(new ColorDrawable(getResources().getColor(R.color.Red)));
        rl.setBackground(getResources().getDrawable(R.drawable.red));
        //r1.setBackgroundDrawable(getResources().getDrawable(R.drawable.blue));
        break;
      case 2:
        actionBar.setBackgroundDrawable(new ColorDrawable(getResources().getColor(R.color.Green)));
        rl.setBackground(getResources().getDrawable(R.drawable.green));
        break;
      case 3:
        actionBar.setBackgroundDrawable(new ColorDrawable(getResources().getColor(R.color.Blue)));
        rl.setBackground(getResources().getDrawable(R.drawable.blue));
        break;
      case 4:
        actionBar.setBackgroundDrawable(new ColorDrawable(getResources().getColor(R.color.Purple)));
        rl.setBackground(getResources().getDrawable(R.drawable.purple));
        break;
      case 5:
        actionBar.setBackgroundDrawable(new ColorDrawable(getResources().getColor(R.color.Orange)));
        rl.setBackground(getResources().getDrawable(R.drawable.orange));
        break;      
    }
    actionBar.setDisplayShowTitleEnabled(false);
    actionBar.setDisplayShowTitleEnabled(true);
  }
  
  @Override
  protected void onCreate(Bundle savedInstanceState)
  {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_host);    
    ActionBar actionBar = getActionBar();
    actionBar.setBackgroundDrawable(new ColorDrawable(getResources().getColor(R.color.LightGreen)));  
    
    Typeface font = Typeface.createFromAsset(getAssets(), "Mission Gothic Bold.otf");
    TextView nameThisSession = (TextView)findViewById(R.id.textView1);
    nameThisSession.setTypeface(font);
    
    Button letsParty = (Button) findViewById(R.id.OK);
    letsParty.setTypeface(font);
    letsParty.setAlpha(1f);
    
    letsParty.setOnTouchListener(new OnTouchListener()
    {

      @Override
      public boolean onTouch(View v, MotionEvent event)
      {
        if (event.getAction() == MotionEvent.ACTION_DOWN)
          v.setAlpha(0.7f);
        else if (event.getAction() == MotionEvent.ACTION_UP || event.getAction() == MotionEvent.ACTION_CANCEL)
          v.setAlpha(1f);
        return false;
      }
      
    });    
    
    myapp = (MyApplication) this.getApplicationContext();
        
    locationManager = (LocationManager) this.getSystemService(Context.LOCATION_SERVICE);
    if (locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER))
      locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, locationListener);
    else if (locationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER))
      locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0, locationListener);
    
    letsParty.setOnClickListener(new View.OnClickListener()
    {

      @Override
      public void onClick(View v)
      {
        //String name = getName();
        
        if(myapp.zipcode == null || myapp.zipcode.equals("00000"))
            myapp.zipcode = getZipcode();
          if(myapp.zipcode.equals("00000"))
          {
            noLocationNotification();
          }
          else
          {
            StartParty();
          }
        //myapp.zipcode = getZipcode();//"70820";
        //String ip = "0.0.0.0";
        
      }
      
    });
  }
  
  public String getName()
  {
    EditText et = (EditText) findViewById(R.id.editText1);
    return et.getText().toString();
  }

  @Override
  public boolean onCreateOptionsMenu(Menu menu)
  {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.host, menu);
    return true;
  }
  
  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    // Handle item selection
    switch (item.getItemId()) {
    case R.id.action_settings:
      Intent nextIntent  = new Intent(HostActivity.this, HostProfileActivity.class);
      InputMethodManager imm = (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);
      imm.hideSoftInputFromWindow(findViewById(R.id.hostBackground).getWindowToken(), 0);
      startActivity(nextIntent);
      break;
    case R.id.about:
      Intent nextIntent2  = new Intent(HostActivity.this, AboutActivity.class);
      InputMethodManager imm1 = (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);
      imm1.hideSoftInputFromWindow(findViewById(R.id.hostBackground).getWindowToken(), 0);
      startActivity(nextIntent2);
      break;
    default:
      super.onOptionsItemSelected(item);
    }
    return true;
  }
  
  public String getZipcode()
  {
    String zipcode = "00000";
    if(currLocation == null)
    {
      String locationProvider = "";
      if (locationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER)) 
      {
        locationProvider = LocationManager.NETWORK_PROVIDER;
        currLocation = locationManager.getLastKnownLocation(locationProvider);
      }
      else if (locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER)) 
      {
        locationProvider = LocationManager.GPS_PROVIDER;
        currLocation = locationManager.getLastKnownLocation(locationProvider);
      }
      
    }

    Geocoder geocoder = new Geocoder(this, Locale.getDefault());
    try {
      List<Address> addresses = geocoder.getFromLocation(currLocation.getLatitude(), currLocation.getLongitude(), 1);
      zipcode = addresses.get(0).getPostalCode();
    } catch (IOException e) {
      e.printStackTrace();
//      Log.d("zipcode", "Failed to get zipcode");
    } catch (NullPointerException e){
      e.printStackTrace();
//      Log.d("zipcode", "Failed to get zipcode");
    } catch (ArrayIndexOutOfBoundsException e) {
      e.printStackTrace();
    }
//    Log.d("zipcode", zipcode);
    locationManager.removeUpdates(locationListener);
    return zipcode;
  }
  
  public LocationListener locationListener = new LocationListener()
  {
    @Override
    public void onLocationChanged(Location arg0) {
      // TODO Auto-generated method stub
//      Log.d("location listener", "location changed");
      currLocation = arg0;
      
    }

    @Override
    public void onProviderDisabled(String arg0) {
      // TODO Auto-generated method stub
      
    }

    @Override
    public void onProviderEnabled(String arg0) {
      // TODO Auto-generated method stub
      
    }

    @Override
    public void onStatusChanged(String arg0, int arg1, Bundle arg2) {
      // TODO Auto-generated method stub
      
    }
  };
  
  public String getPublicIp()
  {
    String ip = "0.0.0.0";
    HttpClient client = new DefaultHttpClient();
    HttpGet request = new HttpGet("http://whatismyip.akamai.com/");
    HttpResponse response;
    try {
      response = client.execute(request);
      String html = "";
      InputStream in = response.getEntity().getContent();
      BufferedReader reader = new BufferedReader(new InputStreamReader(in));
      StringBuilder str = new StringBuilder();
      String line = null;
      line = reader.readLine();
//      Log.d("external ip", line);
      ip = line;
      in.close();
    } catch (Exception e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    }
    
    
    return ip;
  }
  
  public String getPrivateIp()
  {
    WifiManager wm = (WifiManager) getSystemService(WIFI_SERVICE);
    //TODO: change to InetAddress.getHostAddress()
    String ip = Formatter.formatIpAddress(wm.getConnectionInfo().getIpAddress());
//    Log.d("Private ip", "Obtained: "+ip);
    return ip;
  }
  
  public void setName(String name)
  {
    myapp.myName = name;
  }
  
  public void setIp(String ip)
  {
    myapp.myIp = ip;
  }
  
  
  public void setZipcode(String zipcode)
  {
    myapp.zipcode = zipcode;
  }
  
  public void changeNameNotification()
  {
//    Log.d("Contact Server", "Name already in use");
    AlertDialog.Builder builder = new AlertDialog.Builder(this);
    builder.setMessage("This party name is already in use. Please choose another.").setCancelable(false)
    .setPositiveButton("ok", new DialogInterface.OnClickListener()
    {
      public void onClick(DialogInterface dialog, int id)
      {

      }
    });
    AlertDialog alert = builder.create();
    alert.show();  
  }
  
  public void connectionErrorNotification()
  {
//    Log.d("Contact Server", "Error connecting");
    AlertDialog.Builder builder = new AlertDialog.Builder(this);
    builder.setMessage("Error connecting to server").setCancelable(false)
    .setPositiveButton("ok", new DialogInterface.OnClickListener()
    {
      public void onClick(DialogInterface dialog, int id)
      {

      }
    });
    AlertDialog alert = builder.create();
    alert.show();
  }
  
  public void noLocationNotification()
  {
//    Log.d("Contact Server", "Couldn't find your location.");
    AlertDialog.Builder builder = new AlertDialog.Builder(this);
    LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT);
    LinearLayout alertLayout = new LinearLayout(this);
    TextView message = new TextView(this);
    message.setText("Couldn't find your location. Please manually enter your zipcode: ");
    final EditText zipin = new EditText(this);
    
    alertLayout.setOrientation(1);
    alertLayout.addView(message, params);
    alertLayout.addView(zipin, params);
    builder.setView(alertLayout).setCancelable(true)
    .setPositiveButton("ok", new DialogInterface.OnClickListener()
    {
      public void onClick(DialogInterface dialog, int id)
      {
        String zipcode = zipin.getText().toString();
        myapp.zipcode = zipcode;
        new ContactServerTask().execute(myapp.zipcode);
      }
    })
    .setNegativeButton("Nevermind", new DialogInterface.OnClickListener() 
    {  
      @Override
      public void onClick(DialogInterface arg0, int arg1) 
      {
        
      }
    });
    AlertDialog alert = builder.create();
    alert.show();
  }
  
  public void moveToMenu()
  {
    MyApplication myapp = (MyApplication) this.getApplicationContext();
    //myapp.myName = getName();
    //myapp.zipcode = getZipcode();
    //myapp.myIp = getExternalIp();
    myapp.hosting = true;
    Intent nextIntent = new Intent(HostActivity.this, HostMenuActivity.class);
    startActivity(nextIntent);
  }
  
  private void StartParty()
  {
    final String partyName, zipcode, ip;
    
    zipcode = getZipcode();
    if(myapp.zipcode == null || myapp.zipcode.equals("00000"))
        myapp.zipcode = getZipcode();
    
      if(myapp.zipcode.equals("00000"))
      {
        noLocationNotification();
        return;
      }
      
      partyName = getName();
    ip = getPrivateIp();
    
    Thread startPartyOnServerThread = new Thread(new Runnable()
    {

      @Override
      public void run() {
        // TODO Auto-generated method stub
        alertType alert = alertType.SERVER_ERROR;
        
        Jedis jedis = null;
        try
        {
          jedis = myapp.jedisPool.getResource();
          jedis.auth(Redis.auth);


          long reply = jedis.setnx(zipcode + ":" + partyName, ip);
          if(reply == 0)
            alert = alertType.SAME_NAME_ERROR;
          else
          {
            alert = alertType.NO_ERROR;
            jedis.expire(zipcode + ":" + partyName, 500);
            jedis.sadd(zipcode, partyName);
          }
        }
        catch (JedisConnectionException e)
        {
          if(jedis != null)
          {
            myapp.jedisPool.returnBrokenResource(jedis);
            jedis = null;
          }
        }
        finally
        {
          if(jedis != null)
            myapp.jedisPool.returnResource(jedis);
        }
        
        final alertType finalAlert = alert;
        runOnUiThread(new Runnable()
        {

          @Override
          public void run() {
            // TODO Auto-generated method stub
            if(finalAlert == alertType.NO_ERROR)
            {
              setName(partyName);
              setIp(ip);
              moveToMenu();
            }
            else showAlert(finalAlert);
          }
        });  
      }
    });
    startPartyOnServerThread.start();  
  }
  
  private void showAlert(alertType type)
  {
    switch(type)
    {
    case SERVER_ERROR: connectionErrorNotification(); break;
    case LOCATION_ERROR: noLocationNotification(); break;
    case SAME_NAME_ERROR: changeNameNotification(); break;
    }
  }
  
  private class ContactServerTask extends AsyncTask<String, Void, Integer>
  {
    String partyName, zipcode, ip;
    @Override
    //params[0] = party name
    //params[1] = zipcode
    //params[2] = ip
    protected Integer doInBackground(String... params) {
      // TODO Auto-generated method stub
      Integer result = 2;
      
      partyName = getName();
      zipcode = params[0];
      ip = getPrivateIp();
      
      Jedis jedis = null;
      try
      {
        jedis = myapp.jedisPool.getResource();
        jedis.auth(Redis.auth);


        long reply = jedis.setnx(zipcode + ":" + partyName, ip);
        if(reply == 0)
          result = 1;
        else
        {
          result = 0;
          jedis.expire(zipcode + ":" + partyName, 500);
          jedis.sadd(zipcode, partyName);
        }
      }
      catch (JedisConnectionException e)
      {
        if(jedis != null)
        {
          myapp.jedisPool.returnBrokenResource(jedis);
          jedis = null;
        }
      }
      finally
      {
        if(jedis != null)
          myapp.jedisPool.returnResource(jedis);
      }
      return result;
    }

    @Override
    //0 = good to go
    //1 = need different name
    //2 = couldn't connect to server
    protected void onPostExecute(Integer result) {
      // TODO Auto-generated method stub
      if(result == 0)
      {
        setName(partyName);
        setIp(ip);
        //setZipcode(zipcode);
        moveToMenu();
      }
      else if(result == 1)
      {
        changeNameNotification();
      }
      else if(result == 2)
      {
        connectionErrorNotification();
      }
      else if(result == 3)
      {
        noLocationNotification();
      }
    }
    
  }
}
Java Source Code List
