iOS MapKit custom pins - ios

Question

How do I show images instead of pins in the map. So far I can only add pins on tap. A sample code of the .m would extremely help since i'm still new to iOS programming.

Answer 1

#pragma mark -
#pragma mark MKMapView delegate
- (MKAnnotationView *)mapView:(MKMapView *)mapview viewForAnnotation:(id <MKAnnotation>)annotation
{
if ([annotation isKindOfClass:[MKUserLocation class]])
return nil;
static NSString* AnnotationIdentifier = #"AnnotationIdentifier";
MKAnnotationView *annotationView = [mapView dequeueReusableAnnotationViewWithIdentifier:AnnotationIdentifier];
if(annotationView)
return annotationView;
else
{
MKAnnotationView *annotationView = [[[MKAnnotationView alloc] initWithAnnotation:annotation
reuseIdentifier:AnnotationIdentifier] autorelease];
annotationView.canShowCallout = YES;
annotationView.image = [UIImage imageNamed:#"someImage.png"];
UIButton* rightButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
[rightButton addTarget:self action:#selector(writeSomething:) forControlEvents:UIControlEventTouchUpInside];
[rightButton setTitle:annotation.title forState:UIControlStateNormal];
annotationView.rightCalloutAccessoryView = rightButton;
annotationView.canShowCallout = YES;
annotationView.draggable = YES;
return annotationView;
}
return nil;
}
EDIT:
I could explain to you all about the MKAnnotationView, but I think you will find the documentation provided by Apple to be a far better explanation than from any other source. Check the overview section in the link.
https://developer.apple.com/documentation/mapkit/mkannotationview

Answer 2

Go to organizer of Xcode and then go to documentation and search weatherMap it shows example for map with including images at annotation.

Answer 3

#pragma mark -
#pragma mark MKMapView delegate
-(void)addAllPinsOnMapView
{
MKCoordinateRegion region = mapViewOffer.region;
region.center = CLLocationCoordinate2DMake(12.9752297537231, 80.2313079833984);
region.span.longitudeDelta= 0.1f;
region.span.latitudeDelta= 0.1f;
[mapViewOffer setRegion:region animated:YES];
mapViewOffer.delegate=self;
arrMapPin=[[NSMutableArray alloc] init];
NSArray *name=[[NSArray alloc]initWithObjects:
#"Title1",
#"Title2",
#"Title3", nil];
NSMutableArray *arrCoordinateStr = [[NSMutableArray alloc] initWithCapacity:name.count];
[arrCoordinateStr addObject:#"12.970760345459,80.2190093994141"];
[arrCoordinateStr addObject:#"12.9752297537231,80.2313079833984"];
[arrCoordinateStr addObject:#"12.9788103103638,80.2412414550781"];
for(int i = 0; i < name.count; i++)
{
NSArray *components = [[arrCoordinateStr objectAtIndex:i] componentsSeparatedByString:#","];
double latitude = [components[0] doubleValue];
double longitude = [components[1] doubleValue];
MKPointAnnotation *mapPin = [[MKPointAnnotation alloc] init];
CLLocationCoordinate2D coordinate = CLLocationCoordinate2DMake(latitude, longitude);
mapPin.title = [name objectAtIndex:i];
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);
UITapGestureRecognizer *tapGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:#selector(calloutTapped:)];
[view addGestureRecognizer:tapGesture];
}
-(void)calloutTapped:(UITapGestureRecognizer *) sender
{
NSLog(#"Callout was tapped");
MKAnnotationView *view = (MKAnnotationView*)sender.view;
id <MKAnnotation> annotation = [view annotation];
if ([annotation isKindOfClass:[MKPointAnnotation class]])
{
//[self performSegueWithIdentifier:#"annotationDetailSegue" sender:annotation];
OfferDetailsViewController *objOfferDetailsViewController = [[OfferDetailsViewController alloc]init];
[self.navigationController pushViewController:objOfferDetailsViewController animated:YES];
}
}
- (MKAnnotationView *)mapView:(MKMapView *)theMapView
viewForAnnotation:(id <MKAnnotation>)annotation
{
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;
return pinView;
}