LocationService.java

package com.sjriley.zappit.services;

import com.sjriley.zappit.PreferencesActivity;

import android.app.IntentService;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.os.Looper;
import android.util.Log;

public class LocationService extends IntentService
{
    public final static String NAME = "locationService";
    private static final String TAG = LocationService.class.getSimpleName(); 
    private LocationManager locationManager;
    
    public LocationService()
    {
        super(NAME);
    }

    @Override
    protected void onHandleIntent(Intent intent)
    {
        LocationListener gpsListener = new LocationListener()
        {
            @Override
            public void onStatusChanged(String arg0, int arg1, Bundle arg2){
                Log.d(TAG, "STATUS CHANGE");
            }
            @Override
            public void onProviderEnabled(String arg0) {
                Log.d(TAG, "ENABLED");
            }
            @Override
            public void onProviderDisabled(String arg0)  {
                Log.d(TAG, "DISABLED");
            }
            @Override
            public void onLocationChanged(Location location){
                updateLocation(location);
            }
        };
        
        LocationListener networkListener = new LocationListener()
        {
            @Override
            public void onStatusChanged(String arg0, int arg1, Bundle arg2){
                Log.d(TAG, "STATUS CHANGE");
            }
            @Override
            public void onProviderEnabled(String arg0) {
                Log.d(TAG, "ENABLED");
            }
            @Override
            public void onProviderDisabled(String arg0)  {
                Log.d(TAG, "DISABLED");
            }
            @Override
            public void onLocationChanged(Location location){
                Log.d(TAG, "NETWORK LOCATION CHANGED");
                updateLocation(location);
            }
        };
        
        Log.d(TAG, "STARTING LISTENING");
        locationManager = (LocationManager) this.getSystemService(Context.LOCATION_SERVICE);
        //locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, gpsListener);
        for (String string : locationManager.getProviders(true))
        {
            Log.d(TAG, "Provider:" + string);
        }
        locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0.0f, networkListener);
        clearLocation();
        int timeCount = 0;
        int locationCount = 0;
        while (true) {
            synchronized (this)
            {
                timeCount++;
                Log.d(TAG, "STILL WAITING FOR LOCATION");
                try
                {
                    wait(2000);
                    Location location = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
                    if (location != null) {
                        Log.d(TAG, "GPS found");
                    }
                    else {
                        location = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
                        if (location != null) {
                            Log.d(TAG, "Network found");
                        }
                    }
                    //after 8 minutes give up as this will kill the battery
                    if (location != null) {
                        Log.d(TAG, "Found location no:" + locationCount);
                        locationCount++;
                    }
                    if (locationCount > 2 || timeCount > 10) {
                        updateLocation(location);
                        locationManager.removeUpdates(gpsListener);
                        locationManager.removeUpdates(networkListener);
                        stopSelf();
                        break;
                    }
                }
                catch (NullPointerException e){
          //          Log.d(TAG, "Something null");
                    
                }
                catch (InterruptedException e)
                {
                }
            }
        }
    }

    private void updateLocation(Location location) {
        SharedPreferences prefs = getSharedPreferences(PreferencesActivity.DEFAULT_PREFERECES, 0);
        SharedPreferences.Editor editor = prefs.edit();
        Log.d(TAG, "FOUND LAT: "+ location.getLatitude());
        Log.d(TAG, "FOUND LONG: "+ location.getLongitude());
        editor.putString(PreferencesActivity.LATITUDE, (Double.toString(location.getLatitude())));
        editor.putString(PreferencesActivity.LONGITUDE, (Double.toString(location.getLongitude())));
        editor.commit();
    }
    
    private void clearLocation() {
        SharedPreferences prefs = getSharedPreferences(PreferencesActivity.DEFAULT_PREFERECES, 0);
        SharedPreferences.Editor editor = prefs.edit();
        Log.d(TAG, "clearing location");
        //editor.putString(PreferencesActivity.LATITUDE, (Double.toString(location.getLatitude())));
       // editor.putString(PreferencesActivity.LONGITUDE, (Double.toString(location.getLongitude())));
        editor.commit();
    }
}