Mac CoreLocation Services does not ask for permissions
- by Ryan Nichols
I'm writing a Mac App that needs to use CoreLocation services. The code and location works fine, as long as I manually authenticate the service inside the security preference pane. However the framework is not automatically popping up with a permission dialog. The documentation states:
Important The user has the option of denying an application’s access
to the location service data. During its initial uses by an
application, the Core Location framework prompts the user to confirm
that using the location service is acceptable. If the user denies the
request, the CLLocationManager object reports an appropriate error to
its delegate during future requests.
I do get an error to my delegate, and the value of +locationServicesEnabled is correct on CLLocationManager. The only part missing is the prompt to the user about permissions. This occurs on my development MPB and a friends MBP. Neither of us can figure out whats wrong.
Has anyone run into this?
Relevant code:
_locationManager = [CLLocationManager new];
[_locationManager setDelegate:self];
[_locationManager setDesiredAccuracy:kCLLocationAccuracyKilometer];
...
[_locationManager startUpdatingLocation];
UPDATE: Answer
It seems there is a problem with Sandboxing in which the CoreLocation framework is not allowed to talk to com.apple.CoreLocation.agent. I suspect this agent is responsible for prompting the user for permissions.
If you add the Location Services Entitlement (com.apple.security.personal-information.location) it only gives your app the ability to use the CL framework. However you also need access to the CoreLocation agent to ask the user for permissions. You can give your app access by adding the entitlement 'com.apple.security.temporary-exception.mach-lookup.global-name' with a value of 'com.apple.CoreLocation.agent'. Users will be prompted for access automatically like you would expect. I've filed a bug to apple on this already.
