PassiveLocationChangedReceiver.java

package com.alimuzaffar.ramadanalarm.scheduler;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.location.Location;
import android.location.LocationManager;
import android.support.v7.app.AppCompatActivity;

import com.alimuzaffar.ramadanalarm.util.AppSettings;

/**
 * This Receiver class is used to listen for Broadcast Intents that announce
 * that a location change has occurred while this application isn't visible.
 * 
 * Where possible, this is triggered by a Passive Location listener.
 */
public class PassiveLocationChangedReceiver extends BroadcastReceiver {
  
  protected static String TAG = "PassiveLocationChangedReceiver";
  SalaatAlarmReceiver alarm = new SalaatAlarmReceiver();
  
  /**
   * When a new location is received, extract it from the Intent and use
   * it to start the Service used to update the list of nearby places.
   * 
   * This is the Passive receiver, used to receive Location updates from 
   * third party apps when the Activity is not visible. 
   */
  @Override
  public void onReceive(Context context, Intent intent) {
    String key = LocationManager.KEY_LOCATION_CHANGED;
    Location location = null;
    
    if (intent.hasExtra(key)) {
      // This update came from Passive provider, so we can extract the location
      // directly.
      location = (Location)intent.getExtras().get(key);
      if (location != null) {
        AppSettings.getInstance(context).setLatFor(0, location.getLatitude());
        AppSettings.getInstance(context).setLngFor(0, location.getLongitude());
        if (AppSettings.getInstance(context).isAlarmSetFor(0)) {
          alarm.cancelAlarm(context);
          alarm.setAlarm(context);
        }
      }
    }
  }
}