In Swift 4.0 and IOS 11.0, I just add dynamic attribute to the coordinate property of child class of MKAnnotation class and it works: All Annotations on MapView update their location if coordinate value of MKAnnotation objects are updated: class CarAnnotation: NSObject, MKAnnotation { @objc dynamic var coordinate: CLLocationCoordinate2D //Add your custom code here }
Ok, because no one knew, I had to spent one Apple technical support consult for it. ;o) Because MKMapView evidently has its own recognizers to interact with user, you have to adhere to the UIGestureRecognizerDelegate protocol and implement (BOOL)gestureRecognizer:shouldRecognizeSimultaneouslyWithGestureRecognizer: like this: – (void)viewDidLoad { … UIPanGestureRecognizer *panGesture = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(showPan)]; panGesture.delegate = self; … Read more
Okay I officially answered my own question but since I didn’t find it anywhere before I’ll post the answer here: //To calculate the search bounds… //First we need to calculate the corners of the map so we get the points CGPoint nePoint = CGPointMake(self.mapView.bounds.origin.x + mapView.bounds.size.width, mapView.bounds.origin.y); CGPoint swPoint = CGPointMake((self.mapView.bounds.origin.x), (mapView.bounds.origin.y + mapView.bounds.size.height)); //Then … Read more
Based on psoft‘s excellent information, I was able to achieve what I was looking for with this code. NSString *location = @”some address, state, and zip”; CLGeocoder *geocoder = [[CLGeocoder alloc] init]; [geocoder geocodeAddressString:location completionHandler:^(NSArray* placemarks, NSError* error){ if (placemarks && placemarks.count > 0) { CLPlacemark *topResult = [placemarks objectAtIndex:0]; MKPlacemark *placemark = [[MKPlacemark alloc] … Read more
Update: When I tried with the iOS 9 SDK the user annotation is no longer removed. You can simply use mapView.removeAnnotations(mapView.annotations) Historical answer (for apps that run on iOS before iOS 9): Try this: NSMutableArray * annotationsToRemove = [ mapView.annotations mutableCopy ] ; [ annotationsToRemove removeObject:mapView.userLocation ] ; [ mapView removeAnnotations:annotationsToRemove ] ; EDIT: Swift … Read more
Ok, to answer my own question: As was mentioned before, the best thing to do is to use the Google Maps API, it supports a lot of formats but for several reasons I chose to go with JSON. So here are the steps to perform a JSON query to Google Maps and obtain the coordinate … Read more
The latitude must be a number between -90 and 90 and the longitude between -180 and 180.
I understand you want a pin with a custom callout. We can’t create a custom callout, but we can create an annotation with a completely customized view. So the trick is to add a second annotation when the first is selected, and make the 2nd annotation view look like a callout bubble. This is the … Read more
You can use MKMapSnapshotter and grab the image from the resulting MKMapSnapshot. See the discussion of it WWDC 2013 session video, Putting Map Kit in Perspective. For example: MKMapSnapshotOptions *options = [[MKMapSnapshotOptions alloc] init]; options.region = self.mapView.region; options.scale = [UIScreen mainScreen].scale; options.size = self.mapView.frame.size; MKMapSnapshotter *snapshotter = [[MKMapSnapshotter alloc] initWithOptions:options]; [snapshotter startWithCompletionHandler:^(MKMapSnapshot *snapshot, NSError *error) … Read more
To add another implementation to the pile: – (MKMapRect)MKMapRectForCoordinateRegion:(MKCoordinateRegion)region { MKMapPoint a = MKMapPointForCoordinate(CLLocationCoordinate2DMake( region.center.latitude + region.span.latitudeDelta / 2, region.center.longitude – region.span.longitudeDelta / 2)); MKMapPoint b = MKMapPointForCoordinate(CLLocationCoordinate2DMake( region.center.latitude – region.span.latitudeDelta / 2, region.center.longitude + region.span.longitudeDelta / 2)); return MKMapRectMake(MIN(a.x,b.x), MIN(a.y,b.y), ABS(a.x-b.x), ABS(a.y-b.y)); } NB: There are many ways to convert between MKMapRect and MKCoordinateRegion. … Read more