Android Open Source - android_retrieval_system Stop Location Listening Receiver

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License

The source code is released under:
GNU General Public License
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Java Source Code

/*
 * This file is part of Android retrieval system project.
 * //from   w  w w .ja  v  a  2 s .  c o  m
 * Android retrieval system is free software: you can redistribute it
 * and/or modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation, either version 3 of the License,
 * or (at your option) any later version. 
 * 
 * Android retrieval system is distributed in the hope that
 * it will be useful, but WITHOUT ANY WARRANTY; without even the implied
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with Android retrieval system. If not, see <http://www.gnu.org/licenses/>.
 */

package net.deerhunter.ars.broadcast_receivers;

import net.deerhunter.ars.R;
import net.deerhunter.ars.application.ArsApplication;
import net.deerhunter.ars.gps.GPSHelper;
import net.deerhunter.ars.internet_utils.WifiHelper;
import net.deerhunter.ars.location.ARSLocationListener;
import net.deerhunter.ars.providers.ActivityContract;
import android.content.BroadcastReceiver;
import android.content.ContentValues;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.location.Location;
import android.location.LocationManager;

/**
 * This class is used to stop listening the location and save the best location
 * into the database.
 * 
 * @author DeerHunter (vityokkv73@gmail.com)
 */
public class StopLocationListeningReceiver extends BroadcastReceiver {

  @Override
  public void onReceive(Context context, Intent intent) {
    stopLocationListening(context);
    saveBestLocationInDB(context);
    disableGpsAndWifiIfNeeded(context);
  }

  /**
   * Disables GPS and WIFI modules after the listening a location if they were
   * not enabled by the user.
   * 
   * @param context Context of the application component
   */
  private void disableGpsAndWifiIfNeeded(Context context) {
    SharedPreferences prefs = ArsApplication.getInstance().getAppPrefs();
    boolean isWifiEnabledByUser = prefs.getBoolean(context.getString(R.string.isWifiEnabledByUser), false);
    boolean isGPSEnabledByUser = prefs.getBoolean(context.getString(R.string.isGPSEnabledByUser), false);
    if (!isWifiEnabledByUser)
      WifiHelper.changeWifiState(context, false);
    if (!isGPSEnabledByUser)
      GPSHelper.changeGPSState(context, false);
    SharedPreferences.Editor prefEditor = prefs.edit();
    prefEditor.putBoolean(context.getString(R.string.isWifiEnabledByUser), false);
    prefEditor.putBoolean(context.getString(R.string.isGPSEnabledByUser), false);
    prefEditor.commit();
  }

  /**
   * Saves the best location into the database.
   * 
   * @param context Context of the application component
   */
  private void saveBestLocationInDB(Context context) {
    ARSLocationListener locationListener = ARSLocationListener.getInstance();
    Location bestLocation = locationListener.getBestLocation();
    double latitude = -10000.0;
    double longitude = -10000.0;
    double altitude = -10000.0;
    float accuracy = -1.0f;
    String provider = "Unknown";
    long time = System.currentTimeMillis();
    if (bestLocation != null) {
      latitude = bestLocation.getLatitude();
      longitude = bestLocation.getLongitude();
      altitude = bestLocation.getAltitude();
      accuracy = bestLocation.getAccuracy();
      provider = bestLocation.getProvider();
      time = bestLocation.getTime();
    }

    ContentValues newLocation = new ContentValues();
    newLocation.put(ActivityContract.Locations.LATITUDE, latitude);
    newLocation.put(ActivityContract.Locations.LONGITUDE, longitude);
    newLocation.put(ActivityContract.Locations.ALTITUDE, altitude);
    newLocation.put(ActivityContract.Locations.ACCURACY, accuracy);
    newLocation.put(ActivityContract.Locations.PROVIDER, provider);
    newLocation.put(ActivityContract.Locations.TIME, time);
    context.getContentResolver().insert(ActivityContract.Locations.CONTENT_URI, newLocation);
  }

  /**
   * Stops listening of the location.
   * 
   * @param context Context of the application component
   */
  private void stopLocationListening(Context context) {
    ARSLocationListener locationListener = ARSLocationListener.getInstance();
    LocationManager networkLocationManager = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
    networkLocationManager.removeUpdates(locationListener);
  }
}
Java Source Code List
