MKPinAnnotationView unable to set custom image

Question

I have a MKPinAnnotationView and in my viewForAnnotation method, I do the following:

customPinView.image = [UIImage imageNamed:@"blah.png"];

I have added blah.png to my resources (by dragging the file in)

But I still see the stock pin and not my image. Am I doing something wrong? Here is the complete code:

- (MKAnnotationView *)mapView:(MKMapView *)map viewForAnnotation:(id <MKAnnotation>)annotation
{
    static NSString *AnnotationViewID = @"annotationViewID";

    MKAnnotationView *annotationView = (MKAnnotationView *)[mapView dequeueReusableAnnotationViewWithIdentifier:AnnotationViewID];

    if (annotationView == nil)
    {
        annotationView = [[[MKAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:AnnotationViewID] autorelease];
    }

    annotationView.image = [UIImage imageNamed:@"blah.png"];
    annotationView.annotation = annotation;

    return annotationView;
}

In the question you say you have a "MKPinAnnotationView" but in the code you are (correctly) creating a "MKAnnotationView" so which is it? Is the viewForAnnotation method getting called? Maybe the map view's delegate is not set. — user467105
– user467105, Commented Jul 24, 2011 at 17:11
That was the problem, thanks. BTW: can I get a callout with a custom image? — DeShawnT
– DeShawnT, Commented Jul 24, 2011 at 17:46

user467105 · Accepted Answer · 2011-07-24 20:14:18Z

1

To get a callout with a custom image, in the viewForAnnotation delegate method, you can set either the leftCalloutAccessoryView or rightCalloutAccessoryView to your image (although the one on the right is usually used for a disclosure button):

annotationView.canShowCallout = YES;
UIImage *img = [UIImage imageNamed:@"something.png"];
annotationView.leftCalloutAccessoryView = 
    [[[UIImageView alloc] initWithImage:img] autorelease];

answered Jul 24, 2011 at 20:14

user467105

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