问题
I asked a question regarding how to get old location from this:
- (void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations
And I got reply
You should create and use a mutable array of previous locations that were updated from previous calls to "locationManager: didUpdateLocations:". Link
Now I am confused regarding that in Location Awareness guide Apple says this:
If a location update has already been delivered, you can also get the most recent location data directly from the CLLocationManager object without waiting for a new event to be delivered.
I am not getting this point. Please help me out.
回答1:
If you look at Apple's documentation for CLLocationManager, you'll see it has a property you can access that's named "location".
This property contains the last reported location data.
And whenever new locations gets resolved & reported, that property should presumably be updated.
In general though, you'll want to keep your users up-to-date on the current location via updates passed through the delegate methods.
来源：https://stackoverflow.com/questions/16263392/what-location-manager-is-offering-as-its-recent-value