ProximityAlert with a BroadcastReceiver not working

Question

I am new to Android and have a problem with adding ProximityAlert with a BroadcastReceiver. I know that this topic has been taken up earlier as well but I am trying to add proximity alert to different locations and I am not sure if what I am trying to do is quite achievable this way or I am just doing it wrong.

Problem : I have tried to implement the code for adding ProximityAlert with a BroadcastReceiver, but its not working some how. Below is the snippet from my code (posted below) requesting all to please have a look and help me out with it.

I have this userLocations list. I am adding Proximity Alert to all the user mentioned location by running a for loop for the list. I only want to add a proximity Alert to the user location if that particular location has not been visited by the user before. I then register the receiver in the addLocationProximity() method, which is called from the onResume() method. I unregisterReceiver the receiver in the onPause() method.

I have also used the onLocationChanged() method to populate a list (which I would be needing for later) based on the same logic which have been used to add the proximity alert.

Please do let me know if any of these steps have not been carried out correctly.

Thanks in advance.

    package com.android.locationmang;

public class ViewAActivity extends ListActivity implements LocationListener{

private static final String PROX_ALERT_INTENT = "com.android.locationmang.PROX_ALERT_INTENT";
private static final long LOCAL_FILTER_DISTANCE = 1200;
public static List<UserLocation> notifiedLocationsList;

public static Location latestLocation;
PendingIntent pendingIntent;
Intent notificationIntent;
private LocationManager locationManager;
List<UserLocations> userLocations;
private IntentFilter filter;

    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        notifiedLocationsList = new ArrayList<UserLocation>();
        userLocations = getUserLocations(); //Returns a list of user Locations stored by the user on the DB

    filter = new IntentFilter(PROX_ALERT_INTENT);
    }

    private void setUpLocation() {
        locationNotificationReceiver = new LocationNotificationReceiver();

    locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
        locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 60, 5, this);

        for (int i = 0; i < userLocation.size(); i++){
            UserLocation userLocation = userLocation.get(i); 
            if(!(userLocation.isComplete())){
                setProximityAlert(userLocation.getLatitude(), 
                        userLocation.getLongitude(), 
                        i+1, 
                        i);
            }
        }
        registerReceiver(locationNotificationReceiver, filter);
    }


    private void setProximityAlert(double lat, double lon, final long eventID, int requestCode){
            // Expiration is 10 Minutes (10mins * 60secs * 1000milliSecs)
            long expiration = 600000;

            Intent intent = new Intent(this, LocationNotificationReceiver.class);
            intent.putExtra(LocationNotificationReceiver.EVENT_ID_INTENT_EXTRA, eventID);
            PendingIntent pendingIntent = PendingIntent.getBroadcast(getApplicationContext(), requestCode, intent, PendingIntent.FLAG_CANCEL_CURRENT);

            locationManager.addProximityAlert(lat, lon, LOCAL_FILTER_DISTANCE, expiration, pendingIntent);
        }


    @Override
    protected void onResume() {
        super.onResume();

    setUpLocation();
        locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 60, 5, this);
    }

    @Override
    protected void onPause() {
        super.onPause();
        locationManager.removeUpdates(this);
        unregisterReceiver(locationNotificationReceiver);
    }

    public void onProviderDisabled(String provider) {}
    public void onProviderEnabled(String provider) {}
    public void onStatusChanged(String provider, int status, Bundle extras) {}


    public boolean userLocationIsWithinGeofence(UserLocation userLocation, Location latestLocation, long localFilterDistance) {
        float[] distanceArray = new float[1];
        Location.distanceBetween(userLocation.getLatitude(), userLocation.getLongitude(), latestLocation.getLatitude(), latestLocation.getLongitude(), userLocation.getAssignedDate(),distanceArray);

        return (distanceArray[0]<localFilterDistance);
    }

    public void onLocationChanged(Location location) {
        if (location != null) {
            latestLocation = location;

            for (UserLocation userLocation : userLocations) {
                if (!(userLocations.isVisited()) && userLocationIsWithinGeofence(userLocation, latestLocation, LOCAL_FILTER_DISTANCE)) {
                    notifiedLocationsList.add(userLocation);
                }
            }
        }
    }
}

Code for BroadcastReceiver

    package com.android.locationmang;

public class LocationNotificationReceiver extends BroadcastReceiver {
    private static final int NOTIFICATION_ID = 1000;
    public static final String EVENT_ID_INTENT_EXTRA = "EventIDIntentExtraKey";

    @SuppressWarnings("deprecation")
    @Override
    public void onReceive(Context context, Intent intent) {
        String key = LocationManager.KEY_PROXIMITY_ENTERING;

        long eventID = intent.getLongExtra(EVENT_ID_INTENT_EXTRA, -1);

        Boolean entering = intent.getBooleanExtra(key, false);
        if (entering) {
            Log.d(getClass().getSimpleName(), "entering");
        }
        else{
            Log.d(getClass().getSimpleName(), "exiting");
        }

        String ns = Context.NOTIFICATION_SERVICE;

        NotificationManager mNotificationManager = (NotificationManager) context.getSystemService(ns);
        Intent notificationIntent = new Intent(context, MarkAsCompleteActivity.class);

        PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, notificationIntent, 0);
        Notification notification = createNotification();
        notification.setLatestEventInfo(context, "Proximity Alert!", "You are near your point of interest.", pendingIntent);


        mNotificationManager.notify(NOTIFICATION_ID, notification);
    }

    private Notification createNotification() {
        Notification notification = new Notification();
        notification.icon =  R.drawable.ic_launcher;
        notification.when = System.currentTimeMillis();
        notification.flags |= Notification.FLAG_AUTO_CANCEL;
        notification.flags |= Notification.FLAG_SHOW_LIGHTS;
        notification.defaults |= Notification.DEFAULT_VIBRATE;
        notification.defaults |= Notification.DEFAULT_SOUND;
        notification.defaults |= Notification.DEFAULT_LIGHTS;
        notification.ledARGB = Color.WHITE;
        notification.ledOnMS = 1500;
        notification.ledOffMS = 1500;
        return notification;
    }
}

Thanks and Regards

Answer 1

You are creating a broadcast Intent with an action string, and your <receiver> element does not have the corresponding <intent-filter>. Change:

Intent intent = new Intent(PROX_ALERT_INTENT);

to:

Intent intent = new Intent(this, LocationNotificationReceiver.class);