Logic Issue - MapKit - iphone

Question

Following is my MapKitDisplayViewController.m
- (void)viewDidLoad {
[super viewDidLoad];
[mapView setMapType:MKMapTypeStandard];
[mapView setZoomEnabled:YES];
[mapView setScrollEnabled:YES];
MKCoordinateRegion region = { {0.0, 0.0 }, { 0.0, 0.0 } };
region.center.latitude = 22.569722 ;
region.center.longitude = 88.369722;
[mapView setRegion:region animated:YES];
[mapView setDelegate:self];
DisplayMap *ann = [[DisplayMap alloc] init];
ann.title = [person name];
ann.subtitle = [person address];
ann.person = person;
ann.coordinate = region.center;
[mapView addAnnotation:ann];
}
-(MKAnnotationView *)mapView:(MKMapView *)mV viewForAnnotation:
(id <MKAnnotation>)annotation {
MKPinAnnotationView *pinView = nil;
if(annotation != mapView.userLocation)
{
static NSString *defaultPinID = #"com.invasivecode.pin";
pinView = (MKPinAnnotationView *)[mapView dequeueReusableAnnotationViewWithIdentifier:defaultPinID];
if ( pinView == nil ) pinView = [[[MKPinAnnotationView alloc]
initWithAnnotation:annotation reuseIdentifier:defaultPinID] autorelease];
UIImageView *iconView = [[UIImageView alloc] initWithImage: [UIImage imageWithString:#?????????????????];
annotationView.leftCalloutAccessoryView = iconView;
pinView.pinColor = MKPinAnnotationColorRed;
pinView.canShowCallout = YES;
pinView.animatesDrop = YES;
}
return pinView;
}
You will see the line where it'll say ???????? I need to display an image there.
When the user clicks a pin point, then the popup will appear. Title, subtitle and the image is suppose to be displayed on the popup. I believe that the following line should display the image for that popup. But i am unable to pass the Person object's (or the pipoint which contains the person object) image URL to this method. Can you help me display the selected Image URL here.

Answer 1

It doesn't fail. I need to know how to pass the person object
selected by the user to viewForAnnotation method
Ahhh, I see know. I had a similar issue, and it can be a be tricky. I'm right in the middle of reworking my Annotation code, so you can see it since it doesn't work, but I you need to store something away that you can then later retrieve.
I made an object, MKAnnotation.
#interface FotoMapLocation : NSObject <MKAnnotation> {
So when I make an annotation, I create a FotoMapLocation object.
FotoMapLocation *annotation = [[FotoMapLocation alloc] initWithTitle:title
subtitle:subtitle
foto:aFoto
thumbnailImage:aFoto.thumbnailImage
];
[mapView addAnnotation:annotation];
Now, you can store anything here. So store your Person object in your subclass.
I know this is only halfway there, and very rambling. But I was right in the middle of ripping that code out, and then another fire came up, so it is currently in an in-between state. But I expect to return to it in a few days. I'll check back and if you don't have anything I'll update this answer.

Answer 2

This is what i did, in the viewForAnnotation method
DisplayMap *dm= (DisplayMap *)annotation;
NSString *url = [dm.person urlOfPerson];