mapkit

问题 My application needs to get the "closest" walking point to the user from a set of 10. I have seen that MKDirections does this with "calculateDirectionsWithCompletionHandler" for a single source, destination locations. My question is, do I have do make 10 requests and then check which one is the closest one in distance or there is a way of sending multiple destinations and the response would be the closest one walking? Thank you 回答1: As far as I'm aware there is no way to specify more than two

问题 I made this method to check if an user location is inside a polygon on a map view (mapkit). I pass to the method the current user location (CLLocationCoordinate2D) and return a boolean just to know if the user is in a polygon or not. func userInsidePolygon(userlocation: CLLocationCoordinate2D ) -> Bool{ // get every overlay on the map let o = self.mapView.overlays // loop every overlay on map for overlay in o { // handle only polygon if overlay is MKPolygon{ let polygon:MKPolygon = overlay as

问题 trying to give the user the option to choose between google maps (sdk) and apple maps (mapkit) in my app. the app is not using ARC. crash scenario (ios 6.0 / 6.1): 1. enter google maps (modal controller). 2. exit google maps (dismiss modal). 3. change in my app to apple maps (mapkit). 4. enter apple maps (modal controller). the app crashes and i get: [EAGLContext setCurrentContext:] the error won't occur if i don't release google maps in the dealloc, but it's probably will cause a memory leak

问题 I'm quite new to Objective-c. In my app, I'm trying to plot the users taken route onto a map. Here is what I have so far that just gets the users current location: #import "StartCycleViewController.h" #import "CrumbPath.h" @interface StartCycleViewController () @property (nonatomic, strong) CLLocationManager *locationManager; @property (nonatomic, strong) IBOutlet MKMapView *map; @property (nonatomic, strong) UIView *containerView; @end @implementation StartCycleViewController @synthesize

问题 i'm developing an iPhone app which embed a mapView made with mkmapkit. I got two coordinates and I'm tracing the direction between these two points. Everything works well. I'm using google maps api : maps.googleapis.com/maps/api/directions to retrieve xml with all the steps of the direction. But one thing is very strange : I just can't understand why driving direction is not accurate. Between two steps it trace a right line and don't follow the road while walking travel mode trace a very

问题 Currently i am developing an iPhone application where i have to show user's current city and location for which i am using Mapkit Framework.When i build the application it works fine and show me the exact city details .But right now when i try to build the application again application shows following error message in my log /SourceCache/ProtocolBuffer_Sim/ProtocolBuffer-26/Runtime/PBRequester.m:523 server returned error: 503 reverseGeocoder: didFailWithError:Error Domain

问题 Currently i am developing an iPhone application where i have to show user's current city and location for which i am using Mapkit Framework.When i build the application it works fine and show me the exact city details .But right now when i try to build the application again application shows following error message in my log /SourceCache/ProtocolBuffer_Sim/ProtocolBuffer-26/Runtime/PBRequester.m:523 server returned error: 503 reverseGeocoder: didFailWithError:Error Domain

问题 I am trying to show current location of user by setting the property of MKMapView i.e setShowsUserLocation to YES . As by default an arrow appears on the top left of iPhone screen when the application starts updating the user location.But after showing the current location the arrow should disappear but its still present as long as the app is running which would mean the app is still updating the location in the background? so how can i stop updating the current location? i have implemented

问题 #import "AppDelegate.h" #import <MapKit/MapKit.h> @implementation AppDelegate - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions: (NSDictionary *)launchOptions { [self setWindow:[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]]; [self.window makeKeyAndVisible]; UIViewController *vc = [[UIViewController alloc] init]; self.window.rootViewController = vc; vc.view.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;

问题 #import "AppDelegate.h" #import <MapKit/MapKit.h> @implementation AppDelegate - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions: (NSDictionary *)launchOptions { [self setWindow:[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]]; [self.window makeKeyAndVisible]; UIViewController *vc = [[UIViewController alloc] init]; self.window.rootViewController = vc; vc.view.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;