java - Geolocation google map v2 -

i'm using google map v2 current location , itinerary mobile connected internet , gps work , result disappointing times have :" not available" , , same times gaves me location of laaast point connected not current here code

public class itineraryactivity extends activity {  private static final latlng event_place = new latlng(33.59648, -7.664723); private static final latlng mountain_view = new latlng(37.4, -122.1); static final latlng hamburg = new latlng(53.558, 9.927); private googlemap map; private locationmanager service;  @override protected void oncreate(bundle savedinstancestate) {     // todo auto-generated method stub     super.oncreate(savedinstancestate);     setcontentview(r.layout.mapevent);     findviewbyid(r.id.direction).setvisibility(view.invisible);     map = ((mapfragment) getfragmentmanager().findfragmentbyid(r.id.map))             .getmap();     map.setmaptype(googlemap.map_type_normal);      marker hamburg = map.addmarker(new markeroptions()             .position(event_place).title("our event")             .snippet("we waiting .."));      map.movecamera(cameraupdatefactory.newlatlngzoom(event_place, 15));     /** geo */     service = (locationmanager) getsystemservice(location_service);     boolean enabled = service             .isproviderenabled(locationmanager.gps_provider);     // activer gps     if (!enabled) {         intent intent = new intent(settings.action_location_source_settings);         startactivity(intent);         log.e("eeee", "law 3lem");      } else {         log.e("eeee", "law ");     }     // **     criteria criteria = new criteria();     string provider = service.getbestprovider(criteria, false);     location location = service.getlastknownlocation(provider);     // initialize location fields     if (location != null) {         system.out.println("provider " + provider + " has been selected.");         onlocationchanged(location);         new routing(this, map, color.black).execute(                 new latlng(location.getlatitude(), location.getlongitude()),                 event_place);      } else {         log.e("", "not available");     }   }  public void onlocationchanged(location location) {     double lat = (double) (location.getlatitude());     double lng = (double) (location.getlongitude());      log.e("lat + long", string.valueof(lat) + " / " + string.valueof(lng));      map.movecamera(cameraupdatefactory.newlatlngzoom(new latlng(lat, lng),             14));     map.addmarker(new markeroptions()             .position(new latlng(lat, lng))             .title("vous êtes là")             .snippet("nous comptons sur votre présence ...")             .icon(bitmapdescriptorfactory                     .defaultmarker(bitmapdescriptorfactory.hue_blue)));     map.animatecamera(cameraupdatefactory.zoomto(14), 2000, null); } 

}

try code

public class itineraryactivity extends activity implements locationlistener {      public static final double = 6372.8; // in kilometers     private static final latlng event_place = new latlng(33.59648, -7.664723);     static final latlng hamburg = new latlng(53.558, 9.927);     private googlemap map;     private locationmanager service;     private locationmanager locationmanager;     private string provider;     marker mark;      @override     protected void oncreate(bundle savedinstancestate) {         // todo auto-generated method stub         super.oncreate(savedinstancestate);         setcontentview(r.layout.mapevent);         findviewbyid(r.id.direction).setvisibility(view.invisible);         map = ((mapfragment) getfragmentmanager().findfragmentbyid(r.id.map))                 .getmap();         map.setmaptype(googlemap.map_type_normal);          marker hamburg = map.addmarker(new markeroptions()                 .position(event_place).title("our event")                 .snippet("we waiting .."));          map.movecamera(cameraupdatefactory.newlatlngzoom(event_place, 15));         /** geo */         service = (locationmanager) getsystemservice(location_service);         boolean enabledgps = service                 .isproviderenabled(locationmanager.gps_provider);         boolean enabledwifi = service                 .isproviderenabled(locationmanager.network_provider);         if (!enabledgps) {             toast.maketext(this, "gps signal not found", toast.length_long)                     .show();             intent intent = new intent(settings.action_location_source_settings);             startactivity(intent);         }          locationmanager = (locationmanager)                 .getsystemservice(context.location_service);          //         boolean enabled = service                 .isproviderenabled(locationmanager.gps_provider);         // activer gps         criteria criteria = new criteria();         provider = locationmanager.getbestprovider(criteria, false);         location location = locationmanager.getlastknownlocation(provider);          // initialize location fields         if (location != null) {             toast.maketext(this, "selected provider " + provider,                     toast.length_short).show();             onlocationchanged(location);              new routing(this, map, color.black)                     .execute(                             new latlng(location.getlatitude(), location                                     .getlongitude()), event_place);         } else {              //         }         // initialize location fields      }      public void onlocationchanged(location location) {          // mark.remove();         double lat = location.getlatitude();         double lng = location.getlongitude();         /*toast.maketext(this, " location " + lat + "," + lng, toast.length_long)                 .show();*/         latlng coordinate = new latlng(lat, lng);         toast.maketext(                 this,                 "location "                         + coordinate.latitude                         + ","                         + coordinate.longitude                         + "\n distance :"                         + haversine(coordinate.latitude, coordinate.longitude,                                 event_place.latitude, event_place.longitude)                         + "km", toast.length_long).show();          log.e("lat + long", string.valueof(lat) + " / " + string.valueof(lng));          map.movecamera(cameraupdatefactory.newlatlngzoom(new latlng(lat, lng),                 14));         if (mark != null) {              mark.remove();         }          mark = map.addmarker(new markeroptions()                 .position(new latlng(lat, lng))                 .title("vous êtes là")                 .snippet("nous comptons sur votre présence ...")                 .icon(bitmapdescriptorfactory                         .defaultmarker(bitmapdescriptorfactory.hue_blue)));          map.animatecamera(cameraupdatefactory.zoomto(14), 2000, null);     }      @override     public void onproviderdisabled(string provider) {         // todo auto-generated method stub         toast.maketext(this, "enabled new provider " + provider,                 toast.length_short).show();      }      @override     public void onproviderenabled(string provider) {         // todo auto-generated method stub         toast.maketext(this, " disabled provider " + provider,                 toast.length_short).show();     }      @override     public void onstatuschanged(string provider, int status, bundle extras) {         // todo auto-generated method stub      }      /* request updates @ startup */     @override     protected void onresume() {         super.onresume();         locationmanager.requestlocationupdates(provider, 400, 10, this);     }      /* remove locationlistener updates when activity paused */     @override     protected void onpause() {         super.onpause();         locationmanager.removeupdates(this);     }      public double haversine(double lat1, double lon1, double lat2, double lon2) {         double dlat = math.toradians(lat2 - lat1);         double dlon = math.toradians(lon2 - lon1);         lat1 = math.toradians(lat1);         lat2 = math.toradians(lat2);         double = math.sin(dlat / 2) * math.sin(dlat / 2) + math.sin(dlon / 2)                 * math.sin(dlon / 2) * math.cos(lat1) * math.cos(lat2);         double c = 2 * math.asin(math.sqrt(a));         return * c;     } }