iOS: Get Coordinates on button click, then stop all location services -

right now, have when button clicked, starts location services, sets latitude/longitude variables. location still continues running in background.

i want when click button finds latitude/longitude, location services stop.

here's have currently.

- (ibaction)startbutton:(id)sender {      locationmanager.delegate = self;     locationmanager.desiredaccuracy = kcllocationaccuracybest;      [locationmanager startupdatinglocation];     nslog(@"%@", [self lat]); }  - (void)locationmanager:(cllocationmanager *)manager didfailwitherror:(nserror *)error {     nslog(@"didfailwitherror: %@", error);     uialertview *erroralert = [[uialertview alloc]                                initwithtitle:@"error" message:@"failed location" delegate:nil cancelbuttontitle:@"ok" otherbuttontitles:nil];     [erroralert show]; }  - (void)locationmanager:(cllocationmanager *)manager didupdatetolocation:(cllocation *)newlocation fromlocation:(cllocation *)oldlocation {     cllocation *currentlocation = newlocation;      if (currentlocation != nil) {         [self setlat:[nsstring stringwithformat:@"%.6f", currentlocation.coordinate.latitude]];     } } 

another problem is, if instantly try retrieve value of lat property, returns null, because takes second or 2 find location.

so need stop further code run until lat/long properties set. example, how stop otherfunction running until latitude/longitude found:

- (ibaction)startbutton:(id)sender {      [self updatelocation];     [self otherfunction]; }  - (void)updatelocation {     locationmanager.delegate = self;     locationmanager.desiredaccuracy = kcllocationaccuracybest;      [locationmanager startupdatinglocation]; }  - (void)locationmanager:(cllocationmanager *)manager didfailwitherror:(nserror *)error {     nslog(@"didfailwitherror: %@", error);     uialertview *erroralert = [[uialertview alloc]                                initwithtitle:@"error" message:@"failed location" delegate:nil cancelbuttontitle:@"ok" otherbuttontitles:nil];     [erroralert show]; }  - (void)locationmanager:(cllocationmanager *)manager didupdatetolocation:(cllocation *)newlocation fromlocation:(cllocation *)oldlocation {     cllocation *currentlocation = newlocation;      if (currentlocation != nil) {         [self setlat:[nsstring stringwithformat:@"%.6f", currentlocation.coordinate.latitude]]; [locationmanager stopupdatinglocation]     } } 

any help/ideas appreciated!

in last function, after verify currentlocation not nil, should check accuracy of currentlocation, call setlat: function, stop updating location. see post more details:

cllocationmanager , accuracy issues - experiences?