Core Location opt-in protocol

Question

Is there any documentation the defines the protocol followed by iPhone OS to obtain the Core Location opt-in from the user?

I've observed that the user is shown a dialog the first two times an application is run. The dialog asks the user if it's OK for that particular application to use location information. Once the user has approved the application the second time the framework treats that as a permanent opt-in.

Is this behavior officially documented anywhere?

Answer 1

I assume you've seen the description in the CLLocationManager class reference documentation? It's not too specific on the details though...

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.