callouts

I created an MKAnnotation name PushPin which has a title and subtitle. I want to be able to dynamically change the title at a later time. I'm close so I'd rather not have to make a whole new AnnotationView, but if I have to I guess that's ok too. My problem is that, once I change the text for the title, the window does not resize and some text might get cut off depending on how big the title originally was. 1) Is there an event I can trigger to resize the callout bubble window again? 2) Also, I check to make sure that the annotation actually has a title first before I go resetting the title,

I have a custom MKAnnotationView subclass. It is showing the view exactly as I want it to. In that view, I have a button. I want to capture events on the button to perform an action. This works just fine. However, I do NOT want the callout to be dismissed or disappear. Basically, touching the button in the callout will start playing a sound, but I want to leave the annotation up so the user can press stop if they want to, without having to touch the map pin again to bring the annotation back up. In another instance, I want the button touch to animate more details in the callout, so I

i'm trying to hide an AnnotationView without touching the pin, is the possible? Thanks! for (id currentAnnotation in self.mapView.annotations) { if ([currentAnnotation isKindOfClass:[MyAnnotation class]]) { } } Do you just want to make the callout bubble go away but keep the pin? If yes, then do this: for (id currentAnnotation in self.mapView.annotations) { if ([currentAnnotation isKindOfClass:[MyAnnotation class]]) { [self.mapView deselectAnnotation:currentAnnotation animated:YES]; } } 来源： https://stackoverflow.com/questions/2918154/how-to-hide-mkannotationview-callout