Use the AlarmManager to periodically wake your cpu up ;)
Services are not meant to run forever and are usually claimed by the OS
after a certain period of time.
HTH
On Sunday, July 22, 2012 6:47:22 PM UTC+1, Joy-ZSL wrote:
>
> Hi All,
>
> I am developing a location based application in android, main objective of
> this application is to
> retrieve location based information from server by Latitude and
> longitude. This location change functionality is implemented in android
> background service
> with help of Location Manager, the location change will happen every
> 100meters that i am specified in location listener.
> It is working fine while device is in use.
> Application stops location change updates after device went to inactive
> mode (after 1hr or 2hr).
> the Location change get wake up After phone gets on.
>
> Please find my sample code below.
>
> public class BackgroundServiceForLocation extends Service
> {
>
> LocationManager locationManagerObj;
> GeoLocationListener locationListener;
> long minTime = 60000;
> float minDistance =
> Float.parseFloat(String.valueOf(Constants.GEOFENCE_VALUE_DEFAULT));
>
> ....Other Declerations
>
> * Called by the system when the service is first created. Do not call
> this method directly.
> */
> @Override
> public void onCreate()
> {
> super.onCreate();
> getLocationUpdates();
> }
>
> /*
> * Called by the system to notify a Service that it is no longer used
> and is being removed
> */
> @Override
> public void onDestroy()
> {
> super.onDestroy();
>
> try
> {
> if(locationManagerObj!=null && locationListener!=null)
> {
> locationManagerObj.removeUpdates(locationListener);
>
> locationManagerObj = null;
> locationListener = null;
> }
> }
> catch(Exception e)
> {
> }
> }
>
> @Override
> public int onStartCommand(Intent intent, int flags, int startId)
> {
> // TODO Auto-generated method stub
> return START_STICKY;
> }
>
> /*
> * Return the communication channel to the service.
> * @params
> * intent - The Intent that was used to bind to this service
> */
> @Override
> public IBinder onBind(Intent intent)
> {
> // TODO Auto-generated method stub
> return null;
> }
>
> /*
> * used to get the location based on LOCATION SERVCIE
> */
> private void getLocationUpdates()
> {
> // TODO Auto-generated method stub
> try {
> // This class provides access to the system location services.
> if (locationManagerObj == null)
> {
> locationManagerObj =
> (LocationManager)getSystemService(Context.LOCATION_SERVICE);
>
> try
> {
> network_enabled =
> locationManagerObj.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
> CommonFunctions.WriteLog("Network Provider is
> Enabled");
> }
> catch (Exception ex)
> {
> CommonFunctions.WriteLog("Error in Network Provider
> enable, Message:" + ex.getMessage());
> Toast.makeText(this.context,"Problem in
> NETWORK_PROVIDER", 3).show();
> }
> if(!network_enabled)
> {
> try
> {
> gps_enabled =
> locationManagerObj.isProviderEnabled(LocationManager.GPS_PROVIDER);
> CommonFunctions.WriteLog("GPS provider Enabled");
> }
> catch (Exception ex)
> {
> CommonFunctions.WriteLog("Error in GPS provider
> enable, Message:" + ex.getMessage());
> Toast.makeText(this.context,"Problem in
> GPS_PROVIDER", 3).show();
> }
> }
> }
>
> if(network_enabled)
> {
> locationListener = new GeoLocationListener(this.context);
> locationListener.locationResult =locationResult;
> //locationManagerObj.re
> locationManagerObj.requestLocationUpdates(
> LocationManager.NETWORK_PROVIDER, minTime,
> minDistance,
> locationListener);
> }
> else if(gps_enabled)
> {
> locationListener = new GeoLocationListener(this.context);
> locationListener.locationResult =locationResult;
>
> locationManagerObj.requestLocationUpdates(
> LocationManager.GPS_PROVIDER, minTime, minDistance,
> locationListener);
> }
> else
> {
> return;
> }
> }
> catch (Exception ex)
> {
> ex.getMessage();
> }
> }
>
> public Object sharedObject;
>
> public GeoLocationListener.LocationResult locationResult = new
> GeoLocationListener.LocationResult()
> {
> @Override
> public void gotLocation(final Location location)
> {
> //Here to call a webservice and pass latitude and longitude
> }
> };
>
>
>
> }
>
>
> Joy..
>
>
>
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