title: Not receiving Location Updates in Android
body: <p>I have two classes "GPSTracker" and "Live".
  The GPSTracker has the GPS related functions i.e. to get the latitude and the longitude, while the Live class calls it to get the current Latitude and the Longitude and then calculate the distance travelled.
  My problem is that I am not getting any changes in the location, the location remains at whatever it is at the start! No locationUpdates!</p>
  
  <p>GPSTracker.java:</p>
  
  <pre><code>public class GPSTracker extends Service implements LocationListener 
  {
  
  private final Context mContext;
  // flag for GPS status
  boolean isGPSEnabled = false;
  
  // flag for network status
  boolean isNetworkEnabled = false;
  
  // flag for GPS status
  boolean canGetLocation = false;
  
  Location location; // location
  double latitude; // latitude
  double longitude; // longitude
  
  // The minimum distance to change Updates in meters
  private static final long MIN_DISTANCE_CHANGE_FOR_UPDATES =5; // 5 meters
  
  // The minimum time between updates in milliseconds
  private static final long MIN_TIME_BW_UPDATES = 1000 * 5; // 5 seconds
  
  // Declaring a Location Manager
  protected LocationManager locationManager;
  
  public GPSTracker(Context context) 
  {
      this.mContext = context;
      getLocation();
  }
  
  public Location getLocation() 
  {
      try 
      {
          locationManager = (LocationManager) mContext
                  .getSystemService(LOCATION_SERVICE);
  
          // getting GPS status
          isGPSEnabled = locationManager
                  .isProviderEnabled(LocationManager.GPS_PROVIDER);
  
          // getting network status
          isNetworkEnabled = locationManager
                  .isProviderEnabled(LocationManager.NETWORK_PROVIDER);
  
          if (!isGPSEnabled &amp;&amp; !isNetworkEnabled) 
          {
              // no network provider is enabled
          } else 
          {
              this.canGetLocation = true;
              if (isNetworkEnabled) 
              {
                  locationManager.requestLocationUpdates(
                          LocationManager.NETWORK_PROVIDER,
                          MIN_TIME_BW_UPDATES,
                          MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
                  Log.d("Network", "Network");
                  if (locationManager != null) 
                  {
                      location = locationManager
                              .getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
                      if (location != null) 
                      {
                          latitude = location.getLatitude();
                          longitude = location.getLongitude();
                      }
                  }
              }
              // if GPS Enabled get lat/long using GPS Services
              if (isGPSEnabled) 
              {
                  if (location == null) 
                  {
                      locationManager.requestLocationUpdates(
                              LocationManager.GPS_PROVIDER,
                              MIN_TIME_BW_UPDATES,
                              MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
                      Log.d("GPS Enabled", "GPS Enabled");
                      if (locationManager != null) 
                      {
                          location = locationManager
                                  .getLastKnownLocation(LocationManager.GPS_PROVIDER);
                          if (location != null) 
                          {
                              latitude = location.getLatitude();
                              longitude = location.getLongitude();
                          }
                      }
                  }
              }
          }
  
      } 
      catch (Exception e) 
      {
          e.printStackTrace();
      }
  
      return location;
  }
  
  /**
   * Stop using GPS listener
   * Calling this function will stop using GPS in your app
   * */
  public void stopUsingGPS()
  {
      if(locationManager != null)
      {
          locationManager.removeUpdates(GPSTracker.this);
      }       
  }
  
  /**
   * Function to get latitude
   * */
  public double getLatitude()
  {
      if(location != null)
      {
          latitude = location.getLatitude();
      }
  
      // return latitude
      return latitude;
  }
  
  /**
   * Function to get longitude
   * */
  public double getLongitude()
  {
      if(location != null)
      {
          longitude = location.getLongitude();
      }
  
      // return longitude
      return longitude;
  }
  
  /**
   * Function to check GPS/wifi enabled
   * @return boolean
   * */
  public boolean canGetLocation() 
  {
      return this.canGetLocation;
  }
  
  /**
   * Function to show settings alert dialog
   * On pressing Settings button will lauch Settings Options
   * */
  public void showSettingsAlert()
  {
      AlertDialog.Builder alertDialog = new AlertDialog.Builder(mContext);
  
      // Setting Dialog Title
      alertDialog.setTitle("GPS is not enabled");
  
      // Setting Dialog Message
      alertDialog.setMessage("Enable location services to determine your location.");
  
      // On pressing Settings button
      alertDialog.setPositiveButton("Settings", new DialogInterface.OnClickListener() {
          public void onClick(DialogInterface dialog,int which) 
          {
              Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
              mContext.startActivity(intent);
          }
      });
  
      // on pressing cancel button
      alertDialog.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
          public void onClick(DialogInterface dialog, int which) 
          {
          dialog.cancel();
          }
      });
  
      // Showing Alert Message
      alertDialog.show();
  }
  
  @Override
  public void onLocationChanged(Location location) 
  {
  
  }
  
  @Override
  public void onProviderDisabled(String provider) 
  {
  }
  
  @Override
  public void onProviderEnabled(String provider) 
  {
  }
  
  @Override
  public void onStatusChanged(String provider, int status, Bundle extras) 
  {
  }
  
  @Override
  public IBinder onBind(Intent arg0) 
  {
      return null;
  }
  
  }
  </code></pre>
  
  <p>Live.java:</p>
  
  <pre><code>public class Live extends Activity implements LocationListener
  {   
  GPSTracker gps;
  Location newLocation = new Location(LocationManager.GPS_PROVIDER);
  Location oldLocation = new Location(LocationManager.GPS_PROVIDER);
  float distanceTravelled=0;
  @Override
  protected void onCreate(Bundle savedInstanceState) 
  {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.activity_live);
      startactivity();
  
  }
  
  public void startactivity() 
  {
  
      gps = new GPSTracker(Live.this);
  
      if(gps.canGetLocation())
      {
          double latitude = gps.getLatitude();
          double longitude = gps.getLongitude();
          Toast.makeText(getApplicationContext(), "Your Location is: \nLat: " + latitude + "\nLong: " + longitude, Toast.LENGTH_LONG).show();
  
          newLocation.setLatitude(latitude);
          newLocation.setLongitude(longitude);    
      }
      else
      {
          gps.showSettingsAlert();
      }
  
  }
  
  public void resumeactivity() 
  {
  
      gps = new GPSTracker(Live.this);
      if(gps.canGetLocation())
      {
          double latitude = gps.getLatitude();
          double longitude = gps.getLongitude();
          //Toast.makeText(getApplicationContext(), "Your Location is - \nLat: " + latitude + "\nLong: " + longitude, Toast.LENGTH_LONG).show();
  
          newLocation.setLatitude(latitude);
          newLocation.setLongitude(longitude);
      }
      else
      {
  
      }
  }
  
  public void onResume() 
  {
      super.onResume();
      resumeactivity();
  }
  
  @Override
  public void onLocationChanged(Location location) 
  {
      oldLocation.set(newLocation);
      newLocation.set(location);
      //resumeactivity();
      distanceTravelled+=newLocation.distanceTo(oldLocation);
      String stringDistance= Float.toString(distanceTravelled);
      TextView distance = (TextView) findViewById(R.id.textDistance);
      distance.setText(stringDistance);
  }
  
  @Override
  public void onProviderDisabled(String arg0) 
  {
      GPSTracker gps = new GPSTracker(Live.this);
      gps.showSettingsAlert();
  
  }
  @Override
  public void onProviderEnabled(String arg0) 
  {
  
  
  }
  @Override
  public void onStatusChanged(String arg0, int arg1, Bundle arg2) 
  {
  
  
  }
  </code></pre>