Removing and adding geofences in android after having a location update in PendingIntent

Question

I am developing an android application that makes use of new android geofencing API and I want to register more than 100 Geofences.
I'm having an update to my location in the background every 1 minute, and onHandleIntent method in the IntentService class I'm calculating the distance between current location and getting the closest 100 and then I need to monitor these 100 geofences.

The problem is that I am not able to add the closest 100 geofences after getting the current location, and all this have to work when the application is closed.

Here's my code:

package com.example.android.geofence;

import java.util.ArrayList;
import java.util.List;

import android.app.Dialog;
import android.app.IntentService;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.location.Location;
import android.os.Bundle;
import android.support.v4.app.NotificationCompat;
import android.support.v4.app.NotificationCompat.Builder;
import android.text.format.DateUtils;
import android.util.Log;
import android.widget.Toast;

import com.example.android.geofence.GeofenceUtils.REMOVE_TYPE;
import com.example.android.geofence.GeofenceUtils.REQUEST_TYPE;
import com.example.android.geofence.MainActivity.GeofenceSampleReceiver;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GooglePlayServicesClient;
import com.google.android.gms.common.GooglePlayServicesUtil;
import com.google.android.gms.location.Geofence;
import com.google.android.gms.location.LocationClient;
import com.google.android.gms.location.LocationClient.OnAddGeofencesResultListener;

public class LocationService extends IntentService implements OnAddGeofencesResultListener, GooglePlayServicesClient.ConnectionCallbacks, GooglePlayServicesClient.OnConnectionFailedListener {

private String TAG = this.getClass().getSimpleName();
public static int notificationID = 0;

LocationClient geoLocationClient;

public String monitoredLounges = "";

public LocationService() {
    super("Fused Location");
}

public LocationService(String name) {
    super("Fused Location");
}

@Override
   public void onCreate() {
    int resultCode = GooglePlayServicesUtil.isGooglePlayServicesAvailable(this);
    if (resultCode == ConnectionResult.SUCCESS) {
        geoLocationClient = new LocationClient(this, this, this);
        // when I'm using connect() in order to addgeofences my application stops unexpectedly
        geoLocationClient.connect();
    }
}

@Override
protected void onHandleIntent(Intent intent) {
    Location location = intent.getParcelableExtra(LocationClient.KEY_LOCATION_CHANGED);

    if(location != null){
        RegisterGeofences(location);

        Log.i(TAG, "onHandleIntent " + location.getLatitude() + "," + location.getLongitude());
        NotificationManager notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE); 
        Builder noti = new NotificationCompat.Builder(this);
        noti.setContentTitle("Fused Location");
        noti.setContentText(notificationID + "," + location.getLatitude() + "," + location.getLongitude());
        noti.setSmallIcon(R.drawable.ic_launcher);
        notificationManager.notify(notificationID, noti.build());
        notificationID++;
    }
}

public void RegisterGeofences(Location _location) {
    MySQLiteHelper myDbHelper = new MySQLiteHelper(this);
    List<Lounge> closestRegions = myDbHelper.getClosestRegions(_location.getLatitude(), _location.getLongitude());
    ArrayList<Geofence> geofenceList = new ArrayList<Geofence>();

    int regionIndex = 0;
    for (Region cn : closestRegions){
        regionIndex++;
        if(regionIndex> 100) break;

            Geofence geofence = new Geofence.Builder()
                .setRequestId(cn.getTitle())
                .setTransitionTypes(Geofence.GEOFENCE_TRANSITION_ENTER | Geofence.GEOFENCE_TRANSITION_EXIT)
                .setCircularRegion(cn.getLatitude(), cn.getLongitude(), (float) 500.00)
                .setExpirationDuration(Geofence.NEVER_EXPIRE)
                .build();
            monitoredLounges += cn.getTitle() + "&";
            geofenceList.add(geofence);

    }
    PendingIntent geoFencePendingIntent = PendingIntent.getService(this, 0,
            new Intent(this, GeofenceIntentService.class), PendingIntent.FLAG_UPDATE_CURRENT);

    geoLocationClient.addGeofences(geofenceList, geoFencePendingIntent, this);      

}

@Override
public void onConnectionFailed(ConnectionResult arg0) {
    // TODO Auto-generated method stub

}

@Override
public void onConnected(Bundle arg0) {
    // TODO Auto-generated method stub

}

@Override
public void onDisconnected() {
    // TODO Auto-generated method stub

}

@Override
public void onAddGeofencesResult(int arg0, String[] arg1) {
    // TODO Auto-generated method stub

}

}

Note also that before adding RegisterGeofences Method everything concerning updatelocations was working perfectly in the background

score 0 · Answer 1 · answered Nov 14 '13 at 08:06

IntentService doesn't run after a the job is done.(i.e) It destroys the service after some time. Rather, You create a service and run them. Because GeoFences run only when the geoLocationClient is connected and available. Also disconnect the geoLocationClient in the service onDestroy()

Removing and adding geofences in android after having a location update in PendingIntent

1 Answers1