Map view annotations with different pin colors

Question

I have an array with over 200 objects and I am trying to perform a loop through each of them.

Each object will have a yes/no field and I want to display a different

Answer 1

MKPinAnnotationView *pin = (MKPinAnnotationView *) [self.mapView dequeueReusableAnnotationViewWithIdentifier: @"id"];
if (pin == nil)
{
    pin = [[MKPinAnnotationView alloc] initWithAnnotation: annotation reuseIdentifier: @"id"] ;
}
else
{
    pin.annotation = annotation;
}

pin.pinTintColor=[UIColor blueColor];
pin.canShowCallout = true;