MKMapview place pin at location (long/lat)

Question

I have latitude and long values and I need to be able to drop a pin at this location.

Can anybody provide some advice on how to go about this?

Answer 1

Please use this code. its working fine.
-(void)addAllPinsOnMapView
{
MKCoordinateRegion region = mapViewOffer.region;
region.center = CLLocationCoordinate2DMake(23.0225, 72.5714);
region.span.longitudeDelta= 0.1f;
region.span.latitudeDelta= 0.1f;
[mapViewOffer setRegion:region animated:YES];
mapViewOffer.delegate=self;

MKPointAnnotation *mapPin = [[MKPointAnnotation alloc] init];
CLLocationCoordinate2D coordinate = CLLocationCoordinate2DMake(23.0225, 72.5714);
mapPin.title = @"Title";
mapPin.coordinate = coordinate;
[mapViewOffer addAnnotation:mapPin];
}
- (void)mapView:(MKMapView *)mapView didSelectAnnotationView:
(MKAnnotationView *)view
{
NSLog(@"%@",view.annotation.title);
NSLog(@"%f",view.annotation.coordinate.latitude);
NSLog(@"%f",view.annotation.coordinate.longitude);
}

- (MKAnnotationView *)mapView:(MKMapView *)theMapView 
viewForAnnotation:(id )annotation
{
if ([annotation isKindOfClass:[MKUserLocation class]])
{
    ((MKUserLocation *)annotation).title = @"Current Location";
    return nil;
}
else
{
    MKAnnotationView *pinView = nil;
    static NSString *defaultPinID = @"annotationViewID";
    pinView = (MKAnnotationView *)[mapViewOffer dequeueReusableAnnotationViewWithIdentifier:defaultPinID];
    if ( pinView == nil ){
        pinView = [[MKAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:defaultPinID];
    }
    pinView.canShowCallout = YES;
    pinView.image = [UIImage imageNamed:@"placeholder"];

    UIButton *infoButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
    //    [infoButton addTarget:self action:@selector(infoButtonPressed:) forControlEvents:UIControlEventTouchUpInside];
    pinView.rightCalloutAccessoryView = infoButton;
    pinView.rightCalloutAccessoryView.tag=1;
    return pinView;
}
}
- (MKPinAnnotationView*)myMap:(MKMapView*)myMap viewForAnnotation:
(id)annotation{

MKPinAnnotationView *pin = [[MKPinAnnotationView alloc]initWithAnnotation:annotation reuseIdentifier:@"CustomPin"];

UIImage *icon = [UIImage imageNamed:@"bustour.png"];
UIImageView *iconView = [[UIImageView alloc] initWithFrame:CGRectMake(8,0,32,37)];

if(icon == nil)
    NSLog(@"image: ");
else
    NSLog(@"image: %@", (NSString*)icon.description);

[iconView setImage:icon];
[pin addSubview:iconView];
pin.canShowCallout = YES;
pin.pinColor = MKPinAnnotationColorPurple;

return pin;
}

- (IBAction)btnLocateMe:(UIButton *)sender
{
[mapViewOffer setCenterCoordinate:mapViewOffer.userLocation.location.coordinate animated:YES];
}