MKMapView returns the wrong latitudeDelta and longitudeDelta in regionDidChangeAnimated

Question

I'm attempting to talk to a web service for locations within the zoomed-in or zoomed-out area on an embedded MKMapView. In the regionDidChangeAnimated method of my view controller (this is the method that I use to trap any user gesture on the map), I call the following:

NSLog( @"latitude delta = %f", mapView.region.span.latitudeDelta );
NSLog( @"longitude delta = %f", mapView.region.span.longitudeDelta );

And the log entry says:

latitude delta = 0.000435
longitude delta = 0.001930

However, if I requery the lat/long dela manually after the regionDidChangeAnimated has fired (i.e. the user gesture is completed), I get the following:

latitude delta = 0.008415
longitude delta = 0.011932

Why is there a difference here? It doesn't matter whether this is a zoom in or zoom out gesture. There is always a difference. What's up with this??

Answer 1

I submitted this bug to Apple, and was informed that this is a known issue. No workaround was suggested. :-(