Update label text from annotation title - ios

Question

Im trying to update a label in the next view with an annotations title on segue, Im not sure how to do this, but working on the lines of this. Any suggestion or does this need to be done where the annotation is created?
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
if ([[segue identifier] isEqualToString:#"pushShare"])
{
ShareViewController *vc = (ShareViewController *)segue.destinationViewController;
[vc fromLabel.text = StartAnnotation.title];
}
}
Update
The annotation is created when a button is clicked, a pin is dropped on the user location and the annotation title displays the address, Iv tried updating a label in the same view with the title but having trouble with that aswell.
code for creating the annotation
CLLocationCoordinate2D theCoordinate = {_map.userLocation.location.coordinate.latitude,_map.userLocation.location.coordinate.longitude};
CLLocation *currentLocation = [[CLLocation alloc]
initWithLatitude:_map.userLocation.location.coordinate.latitude
longitude:_map.userLocation.location.coordinate.longitude];
NSLog(#"self.geocoder=%#", self.geocoder);
[self.geocoder reverseGeocodeLocation:currentLocation completionHandler:^(NSArray *placemark, NSError *error) {
NSString *address = #"Address unknown";
NSLog(#"geocoder error=%#", error);
if (placemark.count > 0)
{
CLPlacemark *topResult = [placemark objectAtIndex:0];
address = [NSString stringWithFormat:#"%# %# %# %#", topResult.subThoroughfare, topResult.thoroughfare, topResult.subLocality, topResult.locality];
}
StartAnnotation *startPoint = [[StartAnnotation alloc]init];
startPoint.coordinate = theCoordinate;
startPoint.title = address;
startPoint.subtitle = #"Start Point";
[self.map addAnnotation:startPoint];
[self.map selectAnnotation:startPoint animated:YES];
}];
//e.g. fromLabel.text = StartAnnotation.title;

Answer 1

You can handle didSelectAnnotationView to detect when a user tapped on your MKAnnotationView, like in this example:
- (void)mapView:(MKMapView *)mapView didSelectAnnotationView:(MKAnnotationView *)view
{
[mapView deselectAnnotation:view.annotation animated:YES];
[self performSegueWithIdentifier:YOUR_SEGUE_ID
sender:view];
}
Then in prepareForSegue extract the title of the annotation and use it:
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
if ([[segue identifier] isEqualToString:YOUR_SEGUE_ID])
{
UIView *annotationView = (UIView *)sender;
ShareViewController *vc = (ShareViewController *)segue.destinationViewController;
vc.textToSetOnTheLabel = annotationView.annotation.title;
}
}