LocationService.java

package org.igarape.copcast.service;

import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.location.Location;
import android.os.Bundle;
import android.os.Handler;
import android.os.IBinder;
import android.support.v4.app.NotificationCompat;
import android.support.v4.app.TaskStackBuilder;

import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GooglePlayServicesClient;
import com.google.android.gms.location.LocationClient;
import com.google.android.gms.location.LocationListener;
import com.google.android.gms.location.LocationRequest;

import org.igarape.copcast.R;
import org.igarape.copcast.utils.Globals;
import org.igarape.copcast.utils.LocationUtils;
import org.igarape.copcast.views.MainActivity;


/**
 * Created by bruno on 5/11/2014.
 */
public class LocationService extends Service implements
        GooglePlayServicesClient.ConnectionCallbacks,
        GooglePlayServicesClient.OnConnectionFailedListener,
        LocationListener{
    // A request to connect to Location Services
    private LocationRequest mLocationRequest;

    // Stores the current instantiation of the location client in this object
    private LocationClient mLocationClient;

    private int mId = 2;
    private Handler handler;

    @Override
    public void onDestroy() {
        super.onDestroy();
        NotificationManager mNotificationManager =
                (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);

        mNotificationManager.cancel(mId);

        if (mLocationClient.isConnected()){
            mLocationClient.removeLocationUpdates(this);
        }
        mLocationClient.disconnect();
    }

    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }


    @Override
    public void onCreate() {
        super.onCreate();
        final Intent resultIntent = new Intent(this, MainActivity.class);
        final Context context = getApplicationContext();


        NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(context)
                .setContentTitle(getString(R.string.notification_location_title))
                .setContentText(getString(R.string.notification_location_description))
                .setSmallIcon(R.drawable.ic_launcher);

        TaskStackBuilder stackBuilder = TaskStackBuilder.create(context);
        stackBuilder.addParentStack(MainActivity.class);
        stackBuilder.addNextIntent(resultIntent);

        PendingIntent resultPendingIntent =
                stackBuilder.getPendingIntent(
                        0,
                        PendingIntent.FLAG_NO_CREATE
                );
        mBuilder.setContentIntent(resultPendingIntent);
        NotificationManager mNotificationManager =
                (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
        // mId allows you to update the notification later on.
        mNotificationManager.notify(mId, mBuilder.build());

        // Create a new global location parameters object
        mLocationRequest = LocationRequest.create();

        /*
         * Set the update interval
         */
        mLocationRequest.setInterval(LocationUtils.UPDATE_INTERVAL_IN_MILLISECONDS);

        // Use high accuracy
        mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);

        // Set the interval ceiling to one minute
        mLocationRequest.setFastestInterval(LocationUtils.FAST_INTERVAL_CEILING_IN_MILLISECONDS);

        /*
         * Create a new location client, using the enclosing class to
         * handle callbacks.
         */
        mLocationClient = new LocationClient(this, this, this);
        mLocationClient.connect();
    }

    @Override
    public void onConnected(Bundle bundle) {
        mLocationClient.requestLocationUpdates(mLocationRequest, this);
    }

    @Override
    public void onDisconnected() {

    }

    @Override
    public void onConnectionFailed(ConnectionResult connectionResult) {

    }

    @Override
    public void onLocationChanged(Location location) {
        LocationUtils.sendLocation(this, Globals.getUserLogin(getApplicationContext()), location);
    }

}