android - Issue in finding the lat and long in samsung S3 -

i not getting lat , long in samsung s3.in other devices code working fine , getting proper lat , long.below code lat , long.

public class mainactivity extends activity { textview textview1; location currentlocation; double currentlatitude,currentlongitude;  @override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.activity_main);     textview1 = (textview) findviewbyid(r.id.textview1);      findlocation();   }   public void findlocation() {          locationmanager locationmanager = (locationmanager)                 .getsystemservice(context.location_service);          locationlistener locationlistener = new locationlistener() {              public void onlocationchanged(location location) {                  updatelocation(location,currentlatitude,currentlongitude);                  toast.maketext(                         mainactivity.this,                         string.valueof(currentlatitude) + "\n"                                 + string.valueof(currentlongitude), 5000)                         .show();                  }              public void onstatuschanged(string provider, int status,                     bundle extras) {             }              public void onproviderenabled(string provider) {             }              public void onproviderdisabled(string provider) {             }         };          locationmanager.requestlocationupdates(                 locationmanager.network_provider, 0, 0, locationlistener);      }       void updatelocation(location location,double currentlatitude,double currentlongitude) {             currentlocation = location;             this.currentlatitude = currentlocation.getlatitude();             this.currentlongitude = currentlocation.getlongitude();               textview1.settext(string.valueof(this.currentlatitude) + "\n"                     + string.valueof(this.currentlongitude));          } } 

in above code onlocationchanged() method not executing in s3 , same code not working in samsung s3 device.in other devices working fine.i getting correct lat , long in other devices.please me sort out problem..