Question

I dont understand why the userLocation doesnt move when i set a costum image on it.

If i don’t set an image, it uses the default pin blue and it works; i can see the userlocation moves when the postion changes.

here is my viewForAnnotation taken from an other post.

- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation
{
    static NSString* AnnotationIdentifier = @"Annotation";
    MKPinAnnotationView *pinView = (MKPinAnnotationView *)[mk dequeueReusableAnnotationViewWithIdentifier:AnnotationIdentifier];
    if (!pinView)
    {
        pinView = [[[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:AnnotationIdentifier] autorelease];
        pinView.animatesDrop = NO;
        pinView.canShowCallout = YES;
    }
    else
    {
        pinView.annotation = annotation;
    }

    if (annotation == mk.userLocation)
        pinView.image = [UIImage imageNamed:@"PositionPin.png"];
    else
        pinView.image = [UIImage imageNamed:@"PositionPin.png"];

    return pinView;
}    

Answer 1

This appears to be a bug in the map view (still present in iOS 6) where the user location coordinates no longer update when a custom annotation view is used (even though documentation suggests it will work).

A workaround is to use Core Location to get user location updates and create your own annotation (instead of using the map view’s userLocation) and then supplying a custom image for it in viewForAnnotation.

See the answer to Custom Annotation view for userlocation not moving the mapview for more details and some sample code to implement the workaround.

In addition, note that when using a custom image for your annotation view, you should use MKAnnotationView instead of MKPinAnnotationView.
When using MKPinAnnotationView, it sometimes shows its default pin image instead of your custom image.