iOS 8 Map Kit Obj-C Cannot Get Users Location

Question

I am working with Map Kit in iOS 8 using Obj-C NOT SWIFT. I cannot get the device location it is set a 0.00, 0.00 and I am getting the error:

Trying to start         


        

Answer 1

To extend the accepted answer and if you create a sample project with just the above functionality, then apart from CoreLocation and Mapkit frameworks, you might need to add UIKit, Foundation and CoreGraphics framework manually as well in Xcode 6.

Answer 2

Actually, I am studying the CS193P Lecture 16, which is about location and map view, and I could not make the location manager work in iOS 8, applying what was in the video. Looking at your answer, I could make it work.

The Info.plist was modified as described in the answers (I use the NSLocationWhenInUseUsageDescription).

In AddPhotoViewController.hn the define was added :

#define IS_OS_8_OR_LATER ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0)

In AddPhotoViewController.m, the following code was added in ViewDidLoad (after self.image):

#ifdef __IPHONE_8_0
if(IS_OS_8_OR_LATER)
{
    [self.locationManager requestWhenInUseAuthorization];
}
#endif

The authorization will be asked only once, the first time you launch the application.

The following was also added to AddPhotoViewController.h because it was not said in Lecture 16 :

@property (nonatomic) NSInteger locationErrorCode;

shouldPerformSegueWithIdentifier was modified to include else if (!self.location) :

else if (![self.titleTextField.text length])
        {
            [self alert:@"Title required"];
            return NO;
        }
        else if (!self.location)
        {
            switch (self.locationErrorCode)
            {
                case kCLErrorLocationUnknown:
                    [self alert:@"Couldn't figure out where this photo was taken (yet)."]; break;
                case kCLErrorDenied:
                    [self alert:@"Location Services disabled under Privacy in Settings application."]; break;
                case kCLErrorNetwork:
                    [self alert:@"Can't figure out where this photo is being taken.  Verify your connection to the network."]; break;
                default:
                    [self alert:@"Cant figure out where this photo is being taken, sorry."]; break;
            }
            return NO;
        }
        else
        { // should check imageURL too to be sure we could write the file
            return YES;
        }

didFailWithError was added :

- (void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error
{
    self.locationErrorCode = error.code;
}