geolocation - startUpdatingLocation not being fired in iOS -


i'm trying write simple geolocation app find users position in ios. when user presses button, user's position found , displayed, , should changing when startupdatinglocation fired. startupdatinglocation isn't being fired. here's code:

in viewcontroller.h

#import <uikit/uikit.h> #import <mapkit/mapkit.h> #import <corelocation/corelocation.h> @interface cgviewcontroller : uiviewcontroller<cllocationmanagerdelegate> @property (strong, nonatomic) iboutlet uitextfield *namefield; - (ibaction)butstart:(id)sender; @property (strong, nonatomic) iboutlet mkmapview *map; @property (strong, nonatomic) cllocationmanager *locationmanager; @property (strong, nonatomic) iboutlet uilabel *latitude;  @property (strong, nonatomic) iboutlet uilabel *longitude;  @property (strong, nonatomic) iboutlet uilabel *altitude;   @end

and in viewcontroller.m:

- (ibaction)butstart:(id)sender {     self.locationmanager=[[cllocationmanager alloc] init];     if([cllocationmanager locationservicesenabled]){         self.locationmanager.delegate=self;         self.locationmanager.distancefilter=1;         [self.locationmanager startupdatinglocation];     } }  (void)locationmanager:(cllocationmanager *)manager didupdatelocations:(cllocation     *)newlocation fromlocation:(cllocation *)oldlocation {     nslog( @"new location = %@", [newlocation description] );     mkcoordinatespan span;     span.latitudedelta = 0.2;     span.longitudedelta = 0.2;      mkcoordinateregion region;     region.span = span;     region.center = newlocation.coordinate;         map.showsuserlocation = yes;         self.latitude.text = [nsstring stringwithformat:@"%.3f",   newlocation.coordinate.latitude];     self.longitude.text = [nsstring stringwithformat:@"%.3f", newlocation.coordinate.longitude];      }

i've tried leave out unnecessary code, map have. every sample i've seen has locationmanager stuff being set in appdelegate.h/.m, whereas i'm trying call when user presses button. i'm not sure why not being called.

i have implement code in project , working fine .

-if run project in simulator first time location service allow , disallow message comes , if allow method called please replace yoyr method this

- (void)locationmanager:(cllocationmanager *)manager didupdatetolocation:(cllocation *)newlocation        fromlocation:(cllocation *)oldlocation

{

float currentlangitude = newlocation.coordinate.longitude; float currentlatitude =  newlocation.coordinate.latitude; nslog( @"new location lat = %f long = %f", currentlangitude,currentlatitude );

}

thanks.


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