StackOverflow2013

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POProblem adding multiple annotations to map
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copied!<p>Ok, so I’m having this problem. What I want to do is manually add multiple annotations to a map. When I add just one annotation, it works flawlessly. The pin drops, you can click on it to see its callout, life is good.</p> <p>The problem comes when I want to add more than one. When I add the second, suddenly the pin’s aren’t coloured correctly (i.e. depending on their magnitude they should be a certain color, but they’re now both the same…), and more importantly when you click on them, to see their callout, the app crashes with exex_bad_access. I really have no idea what’s wrong, maybe I’m adding too many views to the map? But it’s only 9 pins and the pins themselves add just fine. Here’s my code…</p> <pre><code> - (void)viewDidLoad { [super viewDidLoad]; NSMutableArray *stops = [[NSMutableArray alloc] init]; //Get list of all the stops available Bus *bus1 = [[Bus alloc] init]; // Bus 1 holds the stops stops = [bus1 returnStops]; for (NSString *stop in stops) //Go through each stop to add annotation to map { Bus *bus2 = [bus1 initWithStop:stop]; //Create an instance of bus with a given stop MapAnnotation *eqAnn = [MapAnnotation annotationWithBus:bus2]; [self.mapView addAnnotation:eqAnn]; //Add the annotation to the map //[eqAnn release]; //[bus2 release]; } [self recenterMap]; [stops release]; } - (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation { MKAnnotationView *view = nil; if(annotation != mapView.userLocation) { MapAnnotation *eqAnn = (MapAnnotation*)annotation; view = [self.mapView dequeueReusableAnnotationViewWithIdentifier:@"busLoc"]; if(nil == view) { view = [[[MKPinAnnotationView alloc] initWithAnnotation:eqAnn reuseIdentifier:@"busLoc"] autorelease]; } CGFloat magnituide = [eqAnn.bus.magnitude floatValue]; if(magnituide >= .80f) { [(MKPinAnnotationView *)view setPinColor:MKPinAnnotationColorRed]; } else if(magnituide >= .60f) { [(MKPinAnnotationView *)view setPinColor:MKPinAnnotationColorPurple]; } else { [(MKPinAnnotationView *)view setPinColor:MKPinAnnotationColorGreen]; } [(MKPinAnnotationView *)view setAnimatesDrop:YES]; [view setCanShowCallout:YES]; } return view; } </code></pre> <p>even tried removing the second function, but it didn’t do anything.</p> <p>Thanks for the help! P.S I should also add, there’s usually one or two pins out of the 9 which works when you click the annotation…</p> <p>If i even try to manually just two annotations by hand in the program (i.e., remove the loop), it still fails and the color is still wrong...</p>

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