MKMapView - viewForAnnotation not called while loading more results

Edited to Add * I haven't found a solution for this one yet, can anyone please help? My problem is similar to this but the answer posted doesn't t work for me - MKMapView refresh after pin moves *End Edit

I have a search enabled map view. When user hits search, my custom annotations are added to the map view. The search returns 20 results with a 'load more' link. When I hit load more, more annotations should be added to map view.

The problem is - annotations gets added to the map view but is not displayed on the map. If I zoom in or zoom out to change the map region, the pins are shown.

I find that viewForAnnotations: is not getting called when i hit 'load more'. I am not sure how to trigger this. any one?

-(void)completedSearch:(NSNotification *)resultNotification
 {
   //begin loop
   //get coordinate
   customAnnotation *annot = [[customAnnotation alloc] init开发者_开发技巧WithCoordinate:coordinate];
   //set title subtitle 
   [annotationsArray addObject:annot];
   //end loop
   [mView addAnnotations:annotationsArray];
   [mView setRegion:region animated:YES];
   [mView regionThatFits:region];
 }

  //custom annotation
  @interface customAnnotation : NSObject <MKAnnotation> 
 { 
   CLLocationCoordinate2D coordinate;  
   NSString*              title; 
   NSString*              info; 
 } 
 @property (nonatomic, retain) NSSting *title;
 @property (nonatomic, retain) NSSting *info;

 -(id) initWithCoordinate:(CLLocationCoordinate2D)c;
 @end

 @implementation customAnnotation
 @synthesize coordinate, title, info;
 -(id) initWithCoordinate:(CLLocationCoordinate2D)c
 {
   coordinate = c;
   return self;
 }
 -(void)dealloc{//dealloc stuff here}
 @end

---

just wanted to confirm i was adding annotations from a thread - which doesnt work. once I used this (addCameraIconOnMain adds my annoations)

[self performSelectorOnMainThread:@selector(addCameraIconOnMain:) withObject:cd waitUntilDone:true];    

its worked! thanks!

---

This had something to do with the time lapse receiving the notification and then adding the annotation pins. Forcing it to use the main thread to add annotation pins worked.

---

in my case the problem was I was adding the annotation before the map delegate. It must be something like:

- (void)viewDidLoad
{
    ...

   // map delegate
   [mView setDelegate:self];

   ...

   // add annotation
   [_map addAnnotation:_poiAnnotation];

   ...
}