Home/ Questions/Q 6196677
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-24T03:41:09+00:00

I added a MKAnnotation delegate handler class into a MKMapView like this. MapAnnotation *anAnnotation

  • 0

I added a MKAnnotation delegate handler class into a MKMapView like this.

MapAnnotation *anAnnotation = [[[MapAnnotation alloc] initWithCoordinate:coord] autorelease];
[myMapView addAnnotation:anAnnotation];

The MapAnnotation implements the MKAnnotation.

However didAddAnnotationViews doesnt get called always. Sometimes (rarely) it does and sometimes its not. I checked few places and I have used this correctly. Does it depends on span attributes as well?

MKCoordinateRegion region;
MKCoordinateSpan span;
span.latitudeDelta=0.005f;
span.longitudeDelta=0.005f;

CLLocationCoordinate2D location;

location.latitude = searchLocation.coordinate.latitude;
location.longitude = searchLocation.coordinate.longitude;

region.span=span;
region.center=location;

[myMapView setRegion:region animated:TRUE];
[myMapView regionThatFits:region];

Whats wrong with this code?

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    This delegate method is called for annotations that are currently visible i.e. those that are within the map region that is currently displayed on the screen.

    • 0