Android Open Source - bbstalker My Location

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Back to project page bbstalker.

License

The source code is released under:

GNU General Public License

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Java Source Code

package org.raegdan.bbstalker;
/*  w  w  w  . j  ava  2s . c  om*/
/*/ 
 * Based on the code by @Fedor from StackOverflow (http://stackoverflow.com/users/95313/fedor) 
/*/

import java.util.HashMap;
import java.util.Timer;
import java.util.TimerTask;

import android.app.Activity;
import android.content.Context;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;

public class MyLocation {
  Timer timer1;
  LocationManager lm;
  LocationResult locationResult;
  boolean gps_enabled=false;
  boolean network_enabled=false;
  
  final static protected int TIMEOUT = 20000;
  
  final static protected int EC_NO_ERR = 0;
  final static protected int EC_NO_PROVIDERS = 1;
  final static protected int EC_NO_DATA = 2;
  
  HashMap<String, Object> Cache;
  
  Context context;

  public boolean getLocation(Context c, LocationResult result) {
    locationResult = result;
    
    if (lm == null) {
      lm = (LocationManager) c.getSystemService(Context.LOCATION_SERVICE);
    }

    try {
      gps_enabled=lm.isProviderEnabled(LocationManager.GPS_PROVIDER);
    } catch (Exception ex) {}
    
    try {
      network_enabled=lm.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
    } catch (Exception ex) {}

    if (!gps_enabled && !network_enabled) {
      locationResult.gotLocation(null, EC_NO_PROVIDERS);
      return false;
    }
    
    if (gps_enabled) {
      lm.requestLocationUpdates (LocationManager.GPS_PROVIDER, 0, 0, locationListenerGps);
    }
    
    if (network_enabled) {
      lm.requestLocationUpdates (LocationManager.NETWORK_PROVIDER, 0, 0, locationListenerNetwork);
    }
    
    timer1 = new Timer();
    context = c;
    timer1.schedule(new NoData(), TIMEOUT);
    return true;
  }

  LocationListener locationListenerGps = new LocationListener() {
    public void onLocationChanged(Location location) {
      timer1.cancel();
      lm.removeUpdates(this);
      lm.removeUpdates(locationListenerNetwork);
      locationResult.gotLocation(location, EC_NO_ERR);
    }
    
    public void onProviderDisabled(String provider) {}
    public void onProviderEnabled(String provider) {}
    public void onStatusChanged(String provider, int status, Bundle extras) {}
  };

  LocationListener locationListenerNetwork = new LocationListener() {
    public void onLocationChanged(Location location) {
      timer1.cancel();
      lm.removeUpdates(this);
      lm.removeUpdates(locationListenerGps);
      locationResult.gotLocation(location, EC_NO_ERR);
    }
    
    public void onProviderDisabled(String provider) {}
    public void onProviderEnabled(String provider) {}
    public void onStatusChanged(String provider, int status, Bundle extras) {}
  };

  class NoData extends TimerTask {
    @Override
    public void run() {
      lm.removeUpdates(locationListenerGps);
      lm.removeUpdates(locationListenerNetwork);
       
      ((Activity) context).runOnUiThread(new Runnable() {
        @Override
        public void run() {
          locationResult.gotLocation(null, EC_NO_DATA);
        }
      });
    }
  }

  public static abstract class LocationResult{
    public abstract void gotLocation(Location location, int ErrCode);
  }
}

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