Adding an accessory view button to the MKMapView call out annotation?

Question

Hi all,

I've recently come across this website and I've been trying to add to my call out view a button (from a image).

The code on the websites example works just fine, but when I tried to add in the same code to my project I'm not getting the same results.

There is obviously something I've missed but I cannot seem to work this one out!

Here is my code for annotating:

- (MKAnnotationView *) mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>) annotation{
    MKPinAnnotationView *annView=[[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:@"currentloc"];
    annView.pinColor = MKPinAnnotationColorGreen;

    UIButton *advertButton = [UIButton buttonWithType:UIButtonTypeCustom];
    advertButton.frame = CGRectMake(0, 0, 23, 23);
    advertButton.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter;
    advertButton.contentHorizontalAlignment = UIControlContentHorizontalAlignmentCenter;

    [advertButton setImage:[UIImage imageNamed:@"button_right.png"] forState:UIControlStateNormal];
    [advertButton addTarget:self action:@selector(showLinks:) forControlEvents:UIControlEventTouchUpInside];

    annView.rightCalloutAccessoryView = advertButton;

    annView.animatesDrop=TRUE;
    annView.canShowCallout = YES;
    annView.calloutOffset = CGPointMake(-5, 5);
    return annView;
}

Any help would be appreciated! :)

Answer 1

Sorry to answer my own question but this was solved by setting the delegate of the MKMapView to the ViewController. Phew, took me a while to figure that out and it's so simple!!

Answer 2

That guy is using a custom image to imitate the detail disclosure. You can actually get the standard detail disclosure quite easily:

[UIButton buttonWithType:UIButtonTypeDetailDisclosure];

Answer 3

Instead of setting the target like you did here:

[advertButton addTarget:self action:@selector(showLinks:) forControlEvents:UIControlEventTouchUpInside];

You can use the default delegate:

- (void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control