Creating custom pins for iPhone Mapkit

Question

I am trying something a little different. Instead of a class, I have used MKPinAnnotationView and the inherited image instance. Here is the code for viewForAnnotation. But it doesn't work. Nothing shows at all.

I also tried it using MKAnnotationView and I get the same result.

Any help would be very much appreiciated.

• (MKAnnotationView *)mapView:(MKMapView *)eMapView viewForAnnotation:(id )annotation {

  int postTag = 0;

  MKAnnotationView pinView = (MKAnnotationView)[eMapView dequeueReusableAnnotationViewWithIdentifier:@"Pin"];

  if(pinView == nil) {

  pinView = [[MKAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:@"Pin"];
  pinView.frame = CGRectMake(0, 0, 25, 25);
  

  } else {

  pinView.annotation = annotation;
  

  }

  pinView.image = [UIImage alloc];

  NSString *data_annotation = [annotation getData];

  if([data_annotation length] == 0) { pinView.image = [UIImage imageNamed:@"pinYellow.png"];
  // pinView.pinColor = MKPinAnnotationColorGreen; } else if(([[data_annotation rangeOfString:@"GRAY"].location != NSNotFound)){ pinView.image = [UIImage imageNamed:@"pinGray.png"];
  // pinView.pinColor = MKPinAnnotationColorPurple; } else { pinView.image = [UIImage imageNamed:@"pinRed.png"];
  // pinView.pinColor = MKPinAnnotationColorRed; }

  // Set up the Right callout UIButton *myDetailButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure]; myDetailButton.frame = CGRectMake(0, 0, 23, 23); myDetailButton.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter; myDetailButton.contentHorizontalAlignment = UIControlContentHorizontalAlignmentCenter;

  [myDetailButton addTarget:self action:@selector(checkButtonTapped:) forControlEvents:UIControlEventTouchUpInside];

  // Identify which pin is being selected if ([[annotation title] isEqualToString:@"Current Location"]) { postTag = 99999; } else { postTag = [annotation getPinID];

  }

  myDetailButton.tag = postTag;

  pinView.rightCalloutAccessoryView = myDetailButton;

  //pinView.animatesDrop = YES;

  // Set to show a callout on the pin pinView.canShowCallout = YES;

  return pinView; }