Question

When I load my mapView I have only one tick – user location. After some actions I’m adding more pins. But focus is still in user location. I want to magnify the image in order to see all targets. How can I do this?
My code:

-(void)mapView:(MKMapView *)mapView didAddAnnotationViews:(NSArray *)views {
    if (views.count == 1) {
        MKAnnotationView *annotationView = [views objectAtIndex:0];
        id<MKAnnotation>mp = [annotationView annotation];
        MKCoordinateRegion region = MKCoordinateRegionMakeWithDistance([mp coordinate], 500, 500);
        [mapView setRegion:region animated:YES]; 
    } else {
        for (NSUInteger i = 0; i<views.count; i++) {
            [mapView addAnnotation:[views objectAtIndex:i]];
        }

    }
}

Answer 1

MkCoordinateRegion has a member called span. In order to zoom in/out , you have to play with that value:

region.span.longitudeDelta = aValue;
region.span.latitudeDelta = aValue;

Hope this helps.

Cheers!