Show MapPin title on user tap - ios

Question

I have made a MapPin class like this
//.h
#import <Foundation/Foundation.h>
#import <MapKit/MapKit.h>
#interface MapPin : NSObject <MKAnnotation> {
CLLocationCoordinate2D coordinate;
NSString *title;
NSString *subtitle;
}
#property (nonatomic, assign) CLLocationCoordinate2D coordinate;
#property (nonatomic, copy) NSString *title;
#property (nonatomic, copy) NSString *subtitle;
#end
AND
.m
#import "MapPin.h"
#implementation MapPin
#synthesize coordinate,title,subtitle;
#end
And then in the cellForRowAtIndexPath of my class, I have
MapPin *ann = [[MapPin alloc] init];
ann.title = #"HERE";
ann.subtitle = #"Test";
ann.coordinate = region.center;
[riCell.mapView addAnnotation:ann];
And when the user taps on it I want the title and subtitle to show? Is there a method like on MapPin tap? I though it was supposed to occur automoactilly?
How can I show it on the user tap?
Thanks

Answer 1

You can use CLGeocoder delegate method and use CLPlacemark object and get the locality and distribute to the annotation accordingly
// get the place details from the current location
[geocoder reverseGeocodeLocation:self.locationManager.location
completionHandler:^(NSArray *placemarks, NSError *error) {
if (error){
NSLog(#"Geocode failed with error: %#", error);
return;
}
// get all the details of the current location
placemark = [placemarks objectAtIndex:0];
// set the place details to the annotation
annotation.title = [NSString stringWithString:_placemark.subLocality];
annotation.subtitle = [NSString stringWithString:_placemark.locality];
[self.mapView addAnnotation:annot];
}];
}

Answer 2

This is Swift code ... same you need to implement in Objective C
func mapView(mapView: MKMapView, viewForAnnotation annotation: MKAnnotation) -> MKAnnotationView? {
/*
For now, all we have are some quick and dirty pins for viewing debug
annotations. To learn more about showing annotations,
see "Annotating Maps".
*/
if (annotation.title! == "red") {
let pinView = MKPinAnnotationView()
if #available(iOS 9.0, *) {
pinView.pinTintColor = UIColor.redColor()
} else {
pinView.pinColor = MKPinAnnotationColor.Red
}
pinView.canShowCallout = true
pinView.draggable = true
return pinView
}
canShowCallout = true is the Key here