CLLocation didupdatetolocation not called

Question

Spent few days trying to solve this but unable to find any solutions that works. I have checked all the post on stackoverflow and tried all their solutions and nothing seems to be working for. I have also tried the apple test project for CLLocation which works fine for me. I used bits and pieces from the apple test project

https://developer.apple.com/library/ios/samplecode/LocateMe/Listings/README_md.html

But my code is not working at all. The DidupdateToLocation never gets called.

Here is my code (in viewDidLoad)

_locationManager = [[CLLocationManager alloc] init];

self.locationManager.delegate = self;



// This is the most important property to set for the manager. It ultimately determines how the manager will

// attempt to acquire location and thus, the amount of power that will be consumed.

self.locationManager.desiredAccuracy = kCLLocationAccuracyBest;



// Once configured, the location manager must be "started"

//

// for iOS 8, specific user level permission is required,

// "when-in-use" authorization grants access to the user's location

//

// important: be sure to include NSLocationWhenInUseUsageDescription along with its

// explanation string in your Info.plist or startUpdatingLocation will not work.

//

if ([self.locationManager respondsToSelector:@selector(requestWhenInUseAuthorization)]) {

    [self.locationManager requestWhenInUseAuthorization];

}

[self.locationManager startUpdatingLocation];



[self performSelector:@selector(stopUpdatingLocationWithMessage:)

           withObject:@"Timed Out"

           afterDelay:30];

I have checked to make sure locationServicesEnabled is enabled.

I have added NSLoationWhenInUseUsageDescription property to the info.plist file. Is there any other property I need to add or enable any services??

I cannot for the love of god figure out what i have done wrong. Can some one please help me with this.

Answer 1

You have to call the startUpdatingLocation after you received the didChangeAuthorizationStatus callback on iOS8.

//iOS 8 API change
if([self.locationManager respondsToSelector:@selector(requestWhenInUseAuthorization)]){
    [self.locationManager requestWhenInUseAuthorization];
}else{
    [self.locationManager startUpdatingLocation];
}

implement this delegate method:

-(void)locationManager:(CLLocationManager *)manager didChangeAuthorizationStatus:(CLAuthorizationStatus)status
{
    switch (status) {
        case kCLAuthorizationStatusNotDetermined:
        case kCLAuthorizationStatusRestricted:
        case kCLAuthorizationStatusDenied:
        {
            // do some error handling
        }
            break;
        default:{
            [self.locationManager startUpdatingLocation];
        }
            break;
    }
}

Answer 2

First, don't forget, with IOS 8 you need to do [locationManager requestWhenInUseAuthorization] plus [locationManager requestAlwaysAuthorization];

_locationManager = [CLLocationManager new];

if(SYSTEM_IS_OS_8_OR_LATER) {
    [_locationManager requestWhenInUseAuthorization];
    [_locationManager requestAlwaysAuthorization];

}

_locationManager.delegate = self;
_locationManager.desiredAccuracy = kCLLocationAccuracyBest;
 //and the problem with your code : don't forget to start
_locationManager startUpdatingLocation];

and in your didUpdateLocations

 - (void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations{

        _currentLocation = [locations objectAtIndex:0]; 
        //do your stuff with the location

    }