New PList Retrieval Code Prevents MKMapView Delegate Method From Being Called (iOS)

Issue

I added a plist database to store information for annotations in a MKMapView. Once I implemented the code to grab the information, my delegate methods are no longer being called.

The code I added was:

- (void)viewDidLoad
{
    NSMutableArray *annotations = [[NSMutableArray alloc]init];
    NSString *path = [[NSBundle mainBundle] pathForResource:@"MillersStores" ofType:@"plist"];
    NSDictionary *dict = [NSDictionary dictionaryWithContentsOfFile:path];
    NSArray *anns = [dict objectForKey:@"Root"];
    for(int i = 0; i < [anns count]; i++) {
        float realLatitude = [[[anns objectAtIndex:i] objectForKey:@"Latitude"] floatValue];
        float realLongitude = [[[anns objectAtIndex:i] objectForKey:@"Longitude"] floatValue];

        MillersLocations *myAnnotation = [[MillersLocations alloc] init];
        CLLocationCoordinate2D theCoordinate;
        theCoordinate.latitude = realLatitude;
        theCoordinate.longitude = realLongitude;
        myAnnotation.coordinate = theCoordinate;
        myAnnotation.title = [[anns objectAtIndex:i] objectForKey:@"Title"];
        myAnnotation.subtitle = [[anns objectAtIndex:i] objectForKey:@"Address"];
        [mapView addAnnotation:myAnnotation];
        [annotations addObject:myAnnotation];
        [myAnnotation release];
    }
}

And this is one of delegate method that's no longer being called is:

- (MKAnnotationView *) mapView:(MKMapView *) mapView viewForAnnotation:(id ) annotation {
    if ([annotation isKindOfClass:[MKUserLocation class]])
        return nil;

    MKPinAnnotationView *pinView = [[[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:nil] autorelease];
    pinView.pinColor = MKPinAnnotationColorRed;
    pinView.animatesDrop = YES;
    pinView.canShowCallout = YES;

    UIImageView *leftIconView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"MillersAnnotation.png"]];
    pinView.leftCalloutAccessoryView = leftIconView;

    UIButton *rightButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
    pinView.rightCalloutAccessoryView = rightButton;
    return pinView;
}

I have another delegate method in there that also zooms into the User's Location that's not being called either, as well as the calloutAccessoryControlTapped method that's no longer being called.

I know it has something to do with the new code, but I'm confused as to how to even debug this because it's not giving me errors and I can't log it because the entire methods aren't even being called. When I get rid of the new code, the old code works fine...What is it in the new code that negates the old code?

Solution

It sounds like the map view's delegate property is not set.

Did the old code contain this line:

mapView.delegate = self;

Add that to viewDidLoad or, in IB, connect the map view's delegate outlet to File's Owner.

Answered By - user467105