objective c - iPad MapKit - Reselecting one pin does not work -

i have following problem:

i have number of pins on map. after touching one, custom popup opens , displays information. works perfect.

my problem is, if select same pin twice, popups not open, have touch 1 or click in map.

my code following:

- (mkannotationview *) mapview:(mkmapview *)mapview viewforannotation:(id <mkannotation>) annotation{     mkannotationview* annotationview = nil;     cppointofinterest *myannotation = (cppointofinterest*) annotation;      if ([myannotation iskindofclass:[mkuserlocation class]] || myannotation.poi_id <= 0) {         return nil;      } else {         nsstring* identifier = @"pin";         mkpinannotationview* annview = (mkpinannotationview*)[mv_map dequeuereusableannotationviewwithidentifier:identifier];          if(nil == annview) {             annview = [[[mkpinannotationview alloc] initwithannotation:myannotation reuseidentifier:identifier] autorelease];         }          [annview addobserver:self                   forkeypath:@"selected"                      options:nskeyvalueobservingoptionnew                  context:@"gmap_annotation_selected"];          if(self.nearest_poi == myannotation) {             annview.pincolor = mkpinannotationcolorgreen;          } else {             annview.pincolor = mkpinannotationcolorred;          }          annview.animatesdrop = yes;          annotationview = annview;          [annotationview setenabled:yes];         [annotationview setcanshowcallout:no];          return annotationview;      } } 

observer:

- (void)observevalueforkeypath:(nsstring *)keypath                       ofobject:(id)object                         change:(nsdictionary *)change                        context:(void *)context{      nsstring *action = (nsstring*)context;     if([action isequaltostring:@"gmap_annotation_selected"]){         bool annotationappeared = [[change valueforkey:@"new"] boolvalue];         if (annotationappeared) {             // show popup             }      } } 

i have tried didselectannotationview methode, works first click event.

i have searched several hours, nothing find... :/

does knows solution problem, please give me hint...

thanks , greetings, mathew

you have deselect annotation through mapview before can select again. try folowing:

-(void)mapview:(mkmapview *)mapview didselectannotationview:(mkannotationview *)view {  [mapview deselectannotation:view.annotation animated:no];  }