MapView注释indexPath？

- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id)annotation

- tableView:cellForRowAtIndexPath:

NSUInteger index = [mapView.annotations indexOfObject:annotation];

index

- mapView:viewForAnnotation:

[customAnnotation setSomething: data];

- mapView:viewForAnnotation:
{
    pinView = [[[CustomPinView alloc] initWithAnnotation: annotation reuseIdentifier: PinIdentifier] autorelease];
}

- initWithAnnotation:reuseIdentifier:
{
    CustomAnnotation *customAnnotation = (CustomAnnotation *)annotation;

    [customAnnotation something];
}