"CustomAnnotation is tapped" usage in MKMapView - ios

Question

I need to put custom annotation views to mapview, and they need to be clickable. i need rather than classic callout, i will tap on the annotation and it will perform some functions.
I tried many things but still not achieved.

Answer 1

I found a really good implementation for you:
http://blog.asolutions.com/2010/09/building-custom-map-annotation-callouts-part-1/
there you can add buttons to calloutView with actions
or..
in mapView delegate you can customize the annotation, and the callout view:
viewForAnnotation:
Returns the annotation view associated with the specified annotation object, if any.
(MKAnnotationView *)viewForAnnotation:(id < MKAnnotation >)annotation
there is an example:
- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation
{
MKAnnotationView *annotationView = [[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:#"loc"];
// Button
UIButton *button = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
button.frame = CGRectMake(0, 0, 23, 23);
annotationView.rightCalloutAccessoryView = button;
// Image and two labels
UIView *leftCAV = [[UIView alloc] initWithFrame:CGRectMake(0,0,23,23)];
[leftCAV addSubview : yourImageView];
[leftCAV addSubview : yourFirstLabel];
[leftCAV addSubview : yourSecondLabel];
annotationView.leftCalloutAccessoryView = leftCAV;
annotationView.canShowCallout = YES;
return annotationView;
}
EDITED ANSWER FOR CUSTOM PIN:
make a MKAnnotationView subclass
.h
#import <MapKit/MapKit.h>
#interface AnnotationView : MKAnnotationView
- (id)initWithAnnotation:(id <MKAnnotation>)annotation reuseIdentifier:(NSString *)reuseIdentifier;
#end
.m
#import "AnnotationView.h"
#implementation AnnotationView
{
NSString *identifier;
}
- (id)initWithAnnotation:(id <MKAnnotation>)annotation reuseIdentifier:(NSString *)reuseIdentifier
{
self = [super initWithAnnotation:annotation reuseIdentifier:reuseIdentifier];
if (self != nil)
{
CGRect frame = self.frame;
frame.size = CGSizeMake(78.0, 35.0);
self.frame = frame;
self.backgroundColor = [UIColor clearColor];
self.centerOffset = CGPointMake(0, 0);
}
return self;
}
-(void) drawRect:(CGRect)rect
{
[[UIImage imageNamed:#"yourImage"]drawInRect:CGRectMake(0, 0, 78, 35)];
}
#end
then in the mapview delegate:
- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation {
if ([annotation isKindOfClass:[MKUserLocation class]]) {
return nil;
}
if ([annotation isKindOfClass:[Annotation class]]) {
NSString* annotationIdentifier = #"yourAnnotation";
AnnotationView* customAnnotationView = (AnnotationView*)[mapView dequeueReusableAnnotationViewWithIdentifier:annotationIdentifier];
if (!customAnnotationView) {
customAnnotationView = [[AnnotationView alloc]initWithAnnotation:annotation reuseIdentifier:annotationIdentifier];
customAnnotationView.canShowCallout = YES;
}
else{
customAnnotationView.annotation= annotation;
}
return customAnnotationView;
}
return nil;
}
Annotation class is my custom annotation class:
#interface Annotation : NSObject <MKAnnotation>
I hope this helps

Answer 2

There is a method on the mapViewDelegate: viewForMapView. In this method, you return a view. This view can be completely customized by you, e.g. you can add gestureregognizers to it to handle additional gestures beside tapping.