MKMapKit UILabel as an annoation - ios

Question

I thought this would be something that's fairly common - but cant find it anywhere.
I know how to put images on a map. I use CSMapAnnotation found here http://spitzkoff.com/craig/?p=81.
I've pretty much taken the CSMapAnnotationTypeImage as an example and made a CSMapAnnotationTypeLabel but it keep just showing pins on the map and not the UILabel like I expected.
the header file
#import <Foundation/Foundation.h>
#import <MapKit/MapKit.h>
#interface CSLabelAnnotationView : MKAnnotationView {
UILabel* _label;
}
#property(retain, nonatomic) UILabel* label;
#end
and the source file
#import "CSLabelAnnotationView.h"
#import "CSMapAnnotation.h"
#import "util.h"
#implementation CSLabelAnnotationView
#synthesize label = _label;
#define kWidth 120
#define kHeight 20
- (id)initWithAnnotation:(id <MKAnnotation>)annotation reuseIdentifier:(NSString *)reuseIdentifier
{
self = [super initWithAnnotation:annotation reuseIdentifier:reuseIdentifier];
self.frame = CGRectMake(0, 0, kWidth, kHeight);
self.backgroundColor = [UIColor clearColor];
CSMapAnnotation* csAnnotation = (CSMapAnnotation*)annotation;
_label = [[UILabel alloc] initWithFrame:self.frame];
_label.text=csAnnotation.title;
[self addSubview:_label];
return self;
}
#if 0
- (void)prepareForReuse
{
TGLog(#"");
[_imageView removeFromSuperview];
[_imageView release];
}
#endif
-(void) dealloc
{
[_label release];
[super dealloc];
}
#end
to add it to the map
annotation = [[[CSMapAnnotation alloc] initWithCoordinate:coordinate
annotationType:CSMapAnnotationTypeLabel
title:i.name
reuseIdentifier:#"ocualabel"] autorelease];
[_mapView addAnnotation:annotation];
and
- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation
{
MKAnnotationView* annotationView = nil;
if (annotation == mapView.userLocation){
return nil; //default to blue dot
}
// determine the type of annotation, and produce the correct type of annotation view for it.
CSMapAnnotation* csAnnotation = (CSMapAnnotation*)annotation;
TGLog(#"csAnnotation.annotationType %d", csAnnotation.annotationType);
if(csAnnotation.annotationType == CSMapAnnotationTypeStart ||
csAnnotation.annotationType == CSMapAnnotationTypeEnd)
{
NSString* identifier = #"Pin";
MKPinAnnotationView* pin = (MKPinAnnotationView*)[self.mapView dequeueReusableAnnotationViewWithIdentifier:identifier];
if(nil == pin)
{
pin = [[[MKPinAnnotationView alloc] initWithAnnotation:csAnnotation reuseIdentifier:identifier] autorelease];
}
[pin setPinColor:(csAnnotation.annotationType == CSMapAnnotationTypeEnd) ? MKPinAnnotationColorRed : MKPinAnnotationColorGreen];
annotationView = pin;
TGLog(#"csPin anno");
}
else if(csAnnotation.annotationType == CSMapAnnotationTypeImage)
{
NSString* identifier = csAnnotation.reuseIdentifier;
CSImageAnnotationView* imageAnnotationView = (CSImageAnnotationView*)[self.mapView dequeueReusableAnnotationViewWithIdentifier:identifier];
if(nil == imageAnnotationView)
{
imageAnnotationView = [[[CSImageAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:identifier] autorelease];
imageAnnotationView.rightCalloutAccessoryView = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
}
TGLog(#"CSImage anno");
annotationView = imageAnnotationView;
} else if(csAnnotation.annotationType == CSMapAnnotationTypeLabel)
{
NSString* identifier = csAnnotation.reuseIdentifier;
CSLabelAnnotationView* labelAnnotationView = (CSLabelAnnotationView*)[self.mapView dequeueReusableAnnotationViewWithIdentifier:identifier];
if(nil == labelAnnotationView)
{
labelAnnotationView = [[[CSLabelAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:identifier] autorelease];
}
TGLog(#"CSLabel anno");
} else {
TGLog(#"%d", csAnnotation.annotationType);
}
[annotationView setEnabled:YES];
[annotationView setCanShowCallout:YES];
return annotationView;
}
Can anyone help me with this? Or is there some other standard way to get UILabels on a map?

Answer 1

Found it.
Needed to add this in viewForAnnotation():
annotationView = labelAnnotationView;