mkannotation

来源： https://stackoverflow.com/questions/7780981/how-to-validate-latitude-and-longitude

问题 I put the personal image instead of the traditional red pin. When I open the map to display the pin, the image cover the entire map. Is there a maximum size of the pin image or how do I integrate something in the code to fit the size standard classic pin? func mapView(mapView: MKMapView, viewForAnnotation annotation: MKAnnotation) -> MKAnnotationView? { if annotation is MKUserLocation { return nil } let annotationIdentifier = "SomeCustomIdentifier" // use something unique that functionally

问题 I put the personal image instead of the traditional red pin. When I open the map to display the pin, the image cover the entire map. Is there a maximum size of the pin image or how do I integrate something in the code to fit the size standard classic pin? func mapView(mapView: MKMapView, viewForAnnotation annotation: MKAnnotation) -> MKAnnotationView? { if annotation is MKUserLocation { return nil } let annotationIdentifier = "SomeCustomIdentifier" // use something unique that functionally

问题 I've a custom class of MKAnnotationView in which I'm trying to add 8 button to the annotation in a circular fashion.I've added the buttons.Their postion in the view is perfectly fine but the action of the buttons doesn't get called.Why the action is not getting called and what is the solution. -(void)setSelected:(BOOL)selected animated:(BOOL)animated` { [super setSelected:selected animated:animated]; if(selected) { UIView *circularView = [[UIView alloc]initWithFrame:CGRectMake(-55, -55, 110,

问题 I need to add a big number of annotations on a MKMapview and, the animation which give the impression that the pin falls on the map make that take lot of time to display all of them. Anyone can help me ? Sorry for my english ! Thanks 回答1: You can disable dropping animation with animatesDrop attribute - (MKAnnotationView *) mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>) annotation{ MKAnnotationView *annView =[[[MKAnnotationView alloc] initWithAnnotation:annotation

问题 I want to get the current location's address and set it to the annotation's title. But it didn't work. I think it's because of the block, but I don't know how to fix it. Any help will be appreciated. The most related code is as following: WhereAmIAnnotation.h #import <Foundation/Foundation.h> #import <MapKit/MapKit.h> @interface WhereAmIAnnotation : NSObject <MKAnnotation> { CLLocation *myLocation; NSString *addr; } @property (nonatomic, retain) CLLocation *myLocation; @property (nonatomic,

问题 I am using map on my application, For pin drop, I want to set user's image instead of default pin. I am downloading users image and setting it as per code I paste below. For different scale of devices I am using image name as per device scale like eg., 1 For non retina device - pin.png (size 30 x 30) 2 For retina devices - pin@2x.png (size 60 x 60) 3 For 6+ device - pin@3x.png (size 90 x 90) Here for 1 and 2 working fine and image loads perfect But for 6+ (3x scale) it's not working What's

问题 As you can see I've created a new annotation right here var pin = CustomPointAnnotation() pin.coordinate = CLLocationCoordinate2D(latitude: latitude, longitude: longitude) pin.title = "Bus Stop" pin.subtitle = "City Stand D" pin.imageName = "pin" mapView.addAnnotation(pin) Now when a user clicks on the annotation, I want to run a method. But my question is: How do I know which annotation they clicked on? Then the problem is I am using a loop to create multiple annotations so I can't set the

问题 I have a custom annotation view on the map, which has a UIButton in it, but the UIButton is not responsive when pressed. I have two main problems with user interaction on the annotation view: Buttons and other controls are not responsive. I want the annotation to block touches according to my implementation of - (BOOL)pointInside:(CGPoint)point withEvent:(UIEvent*)event - that is if I return YES then I don't want the touches to get sent through to the MKMapView (potentially selecting other

问题 Ok, so you typically have some object X you want to be annotated inside a MKMapView. You do this way: DDAnnotation *annotation = [[DDAnnotation alloc] initWithCoordinate: poi.geoLocation.coordinate title: @"My Annotation"]; [_mapView addAnnotation: annotation]; Then you create the annotation view inside - (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation; And when some callout gets tapped, you handle the event inside: - (void)mapView:(MKMapView *