Adding custom AnnotationView in iphone - iphone

Question

I am using following code to make custom AnnotationView.
My CustomPointAnnotation is a subclass of MKPointAnnotation with a setter/getter of Player
-(void) showMarkers
{
[self.mapView removeAnnotations:[self.mapView annotations]];
for (int i = 0 ; i < [self.playersArray count]; i ++)
{
Players *player = [self.playersArray objectAtIndex:i];
CustomPointAnnotation *annotationPoint = [[CustomPointAnnotation alloc] init];
[annotationPoint setPlayer:player];
if ([player.name isEqualToString:self.name.text])
{
NSLog(#"%# , %#" , player.name,self.name.text);
annotationPoint.coordinate = CLLocationCoordinate2DMake([player.latitude doubleValue]+.1, [player.longitude doubleValue]+.1);
[self.mapView addAnnotation:annotationPoint];
}
else
{
NSLog(#"%# , %#" , player.name,self.name.text);
annotationPoint.coordinate = CLLocationCoordinate2DMake([player.latitude doubleValue], [player.longitude doubleValue]);
[self.mapView addAnnotation:annotationPoint];
}
}
[self.mapView setUserInteractionEnabled:YES];
}
- (void)mapView:(MKMapView *)mapView didUpdateUserLocation:(MKUserLocation *)userLocation
{
// self.mapView.centerCoordinate = userLocation.location.coordinate;
myLocation = userLocation;
}
-(MKAnnotationView *) mapView:(MKMapView *)mapView viewForAnnotation:(id<MKAnnotation>)annotation
{
if ([[annotation title] isEqualToString:#"Current Location"] )
{
return nil;
}
CustomAnnotationView *annView = [[CustomAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:#"players"];
CustomPointAnnotation *ptAnnotation = (CustomPointAnnotation *) annotation;
[annView setPlayer:ptAnnotation.player];
annView.image = [UIImage imageNamed:#"marker.png"];
annView.enabled = YES;
[annView setUserInteractionEnabled:YES];
return annView;
}
The problem comes at [annView setPlayer:ptAnnotation.player]; Unrecognized selector sent to instance
I am adding CustomPointAnnotation so it should convert it back. How can i solve this issue

Answer 1

OK, Im not sure how you declared the custom class, but it goes like this:
.h:
#interface CustomPointAnnotation: NSObject <MKAnnotation> {
}
#property (nonatomic) CLLocationCoordinate coordinate;
// Other properties like title, subtitle, etc.
.m
#implementation CustomPointAnnotation
#synthesize coordinate; // and other properties

Answer 2

#interface CustomPointAnnotation : NSObject <MKAnnotation&gt
{
Player *player;
}
#property(nonatomic,retain) Player *player;
#property (nonatomic) CLLocationCoordinate coordinate;
Do not subclass MKAnnotation istead confirm to MKAnnotation protocal.
#interface CustomAnnotationView : MKAnnotationView
{
}
no need to set the player. when you need to access the player object access it using the annotation in CustomAnnotationView.
CustomPointAnnotation *annotation=self.annotation;
annotation.player;