iphone - How to stop multiple times method calling of didUpdateLocations() in ios -

this code......

 -(void)locationmanager:(cllocationmanager *)manager didupdatelocations:(nsarray *)locations  {      location_updated = [locations lastobject];     nslog(@"updated coordinate %@",location_updated);     latitude1 = location_updated.coordinate.latitude;     longitude1 = location_updated.coordinate.longitude;      self.lbllat.text = [nsstring stringwithformat:@"%f",latitude1];     self.lbllon.text = [nsstring stringwithformat:@"%f",longitude1];      nsstring *str = [nsstring stringwithformat:@"https://maps.googleapis.com/maps/api/geocode/json?latlng=%f,%f&sensor=false",latitude1,longitude1];     url = [nsurl urlwithstring:str];     nsurlrequest *request = [nsurlrequest requestwithurl:url];     connection = [nsurlconnection connectionwithrequest:request delegate:self];     if (connection)     {         webdata1 = [[nsmutabledata alloc]init];     }         gmsmarker *marker = [[gmsmarker alloc] init];         marker.position = cllocationcoordinate2dmake(latitude1,longitude1);         marker.title = formattedaddress;         marker.icon = [uiimage imagenamed:@"m2.png"];         marker.map = mapview_;         marker.draggable = yes;  } 

this method call multiple times don't want.....

add restriction there. timespan between locations , accuracy

-(void)locationmanager:(cllocationmanager *)manager didupdatelocations:(nsarray *)locations {  cllocation *newlocation = locations.lastobject;   nstimeinterval locationage = -[newlocation.timestamp timeintervalsincenow];  if (locationage > 5.0) return;   if (newlocation.horizontalaccuracy < 0) return;  // needed filter cached , old locations  //nslog(@"location updated = %@", newlocation);  cllocation *loc1 = [[cllocation alloc] initwithlatitude:_currentlocation.coordinate.latitude longitude:_currentlocation.coordinate.longitude];  cllocation *loc2 = [[cllocation alloc] initwithlatitude:newlocation.coordinate.latitude longitude:newlocation.coordinate.longitude];  double distance = [loc1 distancefromlocation:loc2];  _currentlocation = newlocation;   if(distance > 20)  {      //significant location update   }  //location updated  }