On Apr 19, 2012, at 1:39 PM, Fritz Anderson wrote: > On 19 Apr 2012, at 12:01 PM, Alex Zavatone wrote: > >> Yeah, it was the fact that the CLLocationDegrees in the >> CLLocationCoordinate2D struct were doubles, or that CLLocationCoordinate2D >> was a struct. > > Likely both. structs are not wrapped NSNumbers, NSStrings, NSArrays, > NSDictionaries, or NSNulls, and doubles are not NSNumbers. > >> The other possibility might be if the mapView.annotations array is nil >> terminated, that might cause the premature death. > > This confuses me. MKMapView.annotations is an NSArray. How can an NSArray be > nil-terminated? It has a count and there's no way to index into it that would > return anything but an object. There's no need and no way to terminate it.
Confused me too. It might be how I am walking the array that creates a nil result, or a mistake in initialization but I ran into it yesterday as well, where the last value in the array was crashing Xcode until i did a check for nil and if the result was not nil, then process it. >> Still think that NSJSONSerialization dataWithJSONObject:jAnnotations >> options:NSJSONWritingPrettyPrinted error:&error should throw an error rather >> than just crashing. Seems odd to have the error option there, but not usable. > > It's not magic. All methods that expect objects crash if you give them some > other kind of pointer instead. So, that either points to elves, or nil getting assigned to an array entry. > If, however, jAnnotations is an NSArray, the method should be able to detect > that its contents are not of the supported type. The method shouldn't crash. It's got to be a nil value creeping into the annotation list somewhere. Time to add some data validity checking loops. Thanks Fritz. _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
