Custom callout for current location - iphone

Question

I want to display a 2 line label in the callout for current location.
MKUserLocation and not MKAnnotation
Can anybody help with how is it possible?
Am sure It would be possible with custom Callout.. But not sure how to create it for MKUserLocation.

Answer 1

In the viewForAnnotation method you could try this:
- (MKAnnotationView *)map:(MKMapView *)map viewForAnnotation:(id <MKAnnotation>) annotation{
if(self._mapView.userLocation==annotation){
self._mapView.userLocation.title=#"some text";
self._mapView.userLocation.subtitle=#"some text";
return nil;
}
}
Hope this helps.

Answer 2

I assume you can create custom annotation callout and want to use instead of default callout for userlocation. To get this done one need to get reference of current location MKAnnotationView. One can get this reference anywhere but it is better to get it as soon as user location is determined.
- (void)mapView:(MKMapView *)mapView didUpdateUserLocation:(MKUserLocation *)userLocation
{
MKAnnotationView* annotationView = [mapView viewForAnnotation:userLocation];
annotationView.canShowCallout = NO;
//your customization here
}
Or use following method
- (void)mapView:(MKMapView *)mapView didAddAnnotationViews:(NSArray *)views {
MKAnnotationView *aV;
for (aV in views) {
if ([aV.annotation isKindOfClass:[MKUserLocation class]]) {
MKAnnotationView* annotationView = aV;
annotationView.canShowCallout = NO;
//your customization here
}
}
}
and if want to change in canShowCallout property in runtime then one can use following
for (AnnotationClass* annotation in mapView.annotations)
{
if([annotation isKindOfClass:[MKUserLocation class]] )
{
MKAnnotationView* annotationView = [mapView viewForAnnotation:annotation];
annotationView.canShowCallout = NO;
//your customization here
}
}