Changing image of annotation pin - ios

Question

This is how I'm adding an annotation on MapKit:
MKPointAnnotation *point = [[MKPointAnnotation alloc] init];
point.coordinate = zoomLocation;
point.title = #"Where am I?";
point.subtitle = #"I'm here!!!";
[self.mapView addAnnotation:point ];
How can change the image of the annotation?

Answer 1

Create a custom annotation class.
in CustomAnnotation.h
#import <MapKit/MapKit.h>
#interface CustomAnnotation : MKAnnotationView
#end
in CustomAnnotation.m
#import "CustomAnnotation.h"
#implementation CustomAnnotation
-(id)initWithAnnotation:(id<MKAnnotation>)annotation reuseIdentifier:(NSString *)reuseIdentifier {
self = [super initWithAnnotation:annotation reuseIdentifier:reuseIdentifier];
if (self != nil) {
CGRect frame = self.frame;
frame.size = CGSizeMake(46.0, 49.0);
self.frame = frame;
self.backgroundColor = [UIColor clearColor];
self.centerOffset = CGPointMake(-5, -5);
}
return self;
}
// Only override drawRect: if you perform custom drawing.
// An empty implementation adversely affects performance during animation.
- (void)drawRect:(CGRect)rect
{
// Drawing code
[[UIImage imageNamed:#"IMAGE_NAME"] drawInRect:rect];
}
in our mapview delegate method viewForAnnotation
- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation {
static NSString *defaultPinId = #"Pin";
CustomAnnotation *pinView = (CustomAnnotation *)[mapView dequeueReusableAnnotationViewWithIdentifier:defaultPinId];
if (pinView == nil) {
pinView = [[CustomAnnotation alloc]initWithAnnotation:annotation reuseIdentifier:defaultPinId];
}
else {
pinView.annotation = annotation;
}
return pinView;
}

Answer 2

Try this,
MKPointAnnotation *point = [[MKPointAnnotation alloc] init];
[[self.mapView viewForAnnotation:point] setTag:1];
UIImage *image = [UIImage imageNamed:#"pinIcon.png"];
[[self.mapView viewForAnnotation:point] setImage:image];