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POHow to get coordinate data of selected map pin?
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copied!<p>I am trying get the coordinate of each pin I select on my map. I have an issue that every pin I select it give me the same value. </p> <p>In the subtitle I can see the value of each pin I select but when I equal it to Lat and Lon string value it gives me always the same value so Lat and Lon string value won't change. So please where could be my issue?</p> <pre><code>- (void)viewDidLoad{ CLLocationCoordinate2D annotationCoord; annotationPoint.subtitle = [NSString stringWithFormat:@"%f & %f", annotationPoint.coordinate.latitude, annotationPoint.coordinate.longitude]; //Lat and Lon are FLOAT. Lat = annotationPoint.coordinate.latitude; Lon = annotationPoint.coordinate.longitude; NSLog(@"Lat is: %f and Lon is: %f", Lat, Lon); } </code></pre> <p>I am doing this to get to the address to get direction to the AppleMap app. I need the values of the pin I selected.</p> <pre><code> - (MKAnnotationView *)mapView:(MKMapView *)mV viewForAnnotation:(id <MKAnnotation>)annotation { MKPinAnnotationView *pinAnnotation = nil; if(annotation != locationMap.userLocation) { static NSString *defaultPinID = @"myPin"; pinAnnotation = (MKPinAnnotationView *)[locationMap dequeueReusableAnnotationViewWithIdentifier:defaultPinID]; if ( pinAnnotation == nil ) pinAnnotation = [[[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:defaultPinID] autorelease]; pinAnnotation.canShowCallout = YES; //instatiate a detail-disclosure button and set it to appear on right side of annotation UIButton *infoButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure]; [infoButton addTarget:self action:@selector(infoButton:) forControlEvents:UIControlEventTouchUpInside]; pinAnnotation.rightCalloutAccessoryView = infoButton; } return pinAnnotation; } </code></pre> <p>The value of the LAT and LON is always the same. Please where could be my problem?</p> <pre><code>-(void)infoButton:(id)sender{ NSString *str = [NSString stringWithFormat:@"http://maps.apple.com/maps?saddr=%f,%f&daddr=%f,%f", Lat,Lon,lat1,lon1]; NSLog(@"Test %f, %f", Lat, Lon); NSURL *URL = [NSURL URLWithString:str]; [[UIApplication sharedApplication] openURL:URL]; } </code></pre> <p>Test for solution:</p> <pre><code>-(void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control{ MKPointAnnotation *annotationPoint = [[MKPointAnnotation alloc] init]; CLLocation *pinLocation = [[CLLocation alloc] initWithLatitude:annotationPoint.coordinate.latitude longitude:annotationPoint.coordinate.longitude]; NSLog(@"RESULT: Lat:%@ Long:%@", [[view annotation]coordinate].latitude,[[view annotation]coordinate].longitude); } </code></pre> <p>NSLog result: <code>LAST: <+0.00000000,+0.00000000> +/- 0.00m (speed -1.00 mps / course -1.00) @ 8/23/13, 10:01:04 AM Standard Time</code></p>

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