How to get annotation indexpath in mapview

Question

I have a problem. I have a mapView, and I have many annotations in my mapView. how to know the indexPath that I select the annotation. I find the function didSelectAnnotationView but I don't know how to use it. This is my code: BOOL firstLocationReceived; -(void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations { CLLocation *currentLocation = locations.lastObject; //current location if(firstLocationReceived == NO) { MKCoordinateRegion region = _shopMapView.region; region.center = currentLocation.coordinate; region.span.latitudeDelta = 0.05; region.span.longitudeDelta = 0.05; [_restaurantMapView setRegion:region animated:true]; //Add Annotation for (int i = 0; i < self.items.count ; i++) { MKPointAnnotation *annotation = [MKPointAnnotation new]; NSDictionary *item = self.items[i]; CLLocationDegrees latitude = [item[@"latitude"] doubleValue]; CLLocationDegrees longitude = [item[@"longitude"] doubleValue]; annotation.coordinate = CLLocationCoordinate2DMake(latitude, longitude); annotation.title = item[@"name"]; annotation.subtitle = item[@"address"]; [_shopMapView addAnnotation:annotation]; firstLocationReceived == YES; } } } -(MKAnnotationView*)mapView:(MKMapView *)mapView viewForAnnotation:(id)annotation { if (annotation == mapView.userLocation) { return nil; } NSString *identifier = @"shop"; MKAnnotationView *result = [mapView dequeueReusableAnnotationViewWithIdentifier:identifier]; if(result ==nil) { result = [[MKAnnotationView alloc]initWithAnnotation:annotation reuseIdentifier:identifier]; } else { result.annotation = annotation; } result.canShowCallout = true; UIImage *annotationViewImage = [UIImage imageNamed:@"point.png"]; result.image = annotationViewImage; result.leftCalloutAccessoryView = [[UIImageView alloc]initWithImage:annotationViewImage]; UIButton *button = [UIButton buttonWithType:UIButtonTypeDetailDisclosure]; [button addTarget:self action:@selector(buttonTapped:) forControlEvents:UIControlEventTouchUpInside]; result.rightCalloutAccessoryView = button; return result; } Thanks! JavaScript questions and answers, JavaScript questions pdf, JavaScript question bank, JavaScript questions and answers pdf, mcq on JavaScript pdf, JavaScript questions and solutions, JavaScript mcq Test , Interview JavaScript questions, JavaScript Questions for Interview, JavaScript MCQ (Multiple Choice Questions)

Answer 1

You can get your selected annotation index by this way, -(void)mapView:(MKMapView *)mapView didSelectAnnotationView:(MKAnnotationView *)view{ MKPointAnnotation * annotation = [[MKPointAnnotation alloc]init]; annotation = view.annotation; NSString * selectedTitle = [NSString stringWithFormat:@"%@",annotation.title]; NSInteger index = [[self.items valueForKey:@"name"] indexOfObject:selectedTitle]; //Considering self.items as NSDictionary consist of all annotation names. NSLog(@"You selected index: %ld",(long)index); } Swift func mapView(_ mapView: MKMapView, didSelect view: MKAnnotationView) { var annotation = MKPointAnnotation() if let anAnnotation = view.annotation as? MKPointAnnotation { annotation = anAnnotation } let selectedTitle = "\(annotation.title ?? "")" let index: Int? = (items["name"] as? NSArray)?.index(of: selectedTitle) //Considering self.items as NSDictionary consist of all annotation names. print("You selected index: \(Int(index))") } Get the annotation title of selected annotation point and lets find it's index in our array of all names.