MKPinAnnotationView draggable not working. draggable = YES, callout has title and subtitle, and setCoordinate is implemented - objective-c

Question

When I try to drag the pin, it does not move. When I touch it, it darkens. However, it never lifts up, and it never moves around.
Here is the header file for my annotation class:
#import <UIKit/UIKit.h>
#import <MapKit/MapKit.h>
#import <Parse/Parse.h>
#interface GeoPointAnnotation : NSObject <MKAnnotation>
- (id)initWithObject:(PFObject *)aObject;
#property (nonatomic, readwrite, assign) CLLocationCoordinate2D coordinate;
#property (nonatomic, readonly, copy) NSString *title;
#property (nonatomic, readonly, copy) NSString *subtitle;
- (void)setCoordinate:(CLLocationCoordinate2D)newCoordinate;
#end
Here's where I create the annotation in my view controller:
- (void)updateMap
{
[self.mapView removeAnnotations:self.mapView.annotations];
PFGeoPoint *geoPoint = [self.post location];
// center the map around the geopoint
[self.mapView setRegion:MKCoordinateRegionMake(
CLLocationCoordinate2DMake(geoPoint.latitude, geoPoint.longitude),
MKCoordinateSpanMake(0.01, 0.01)
)];
GeoPointAnnotation *annotation = [[GeoPointAnnotation alloc] initWithObject:self.post.object];
[self.mapView addAnnotation:annotation];
}
// from Geolocations by Parse
#pragma mark - MKMapViewDelegate
- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id<MKAnnotation>)annotation {
static NSString *GeoPointAnnotationIdentifier = #"RedPin";
MKPinAnnotationView *annotationView = (MKPinAnnotationView *)[mapView dequeueReusableAnnotationViewWithIdentifier:GeoPointAnnotationIdentifier];
if (!annotationView) {
annotationView = [[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:GeoPointAnnotationIdentifier];
annotationView.pinColor = MKPinAnnotationColorRed;
annotationView.canShowCallout = YES;
annotationView.draggable = YES;
annotationView.animatesDrop = YES;
}
return annotationView;
}
Any ideas?

Answer 1

Found the problem: I forgot to hook up the Map View's delegate in my Storyboard xib. h/t Nitin Gohel - thanks!