MGLLocationManagerDelegate

@protocol MGLLocationManagerDelegate <NSObject>

The MGLLocationManagerDelegate protocol defines a set of methods that respond to location updates from an MGLLocationManager object that is serving as the location manager of an MGLMapView.

Responding to Location Updates

-locationManager:didUpdateLocations:

Notifies the delegate with the new location data.

Declaration

Objective-C

- (void)locationManager:(nonnull id<MGLLocationManager>)manager
 didUpdateLocations:(nonnull NSArray<CLLocation *> *)locations;

Swift

func locationManager(_ manager: MGLLocationManager, didUpdate locations: [CLLocation])

Parameters

manager

The location manager reporting the update.

locations

An array of CLLocation objects in chronological order, with the last object representing the most recent location. This array contains multiple CLLocation objects when MGLMapView uses its default location manager.

Responding to Heading Updates

-locationManager:didUpdateHeading:

Notifies the delegate with the new heading data.

Declaration

Objective-C

- (void)locationManager:(nonnull id<MGLLocationManager>)manager
   didUpdateHeading:(nonnull CLHeading *)newHeading;

Swift

func locationManager(_ manager: MGLLocationManager, didUpdate newHeading: CLHeading)

Parameters

manager

The location manager reporting the update.

newHeading

The new heading update.

-locationManagerShouldDisplayHeadingCalibration:

Asks the delegate if the calibration alert should be displayed.

Declaration

Objective-C

- (BOOL)locationManagerShouldDisplayHeadingCalibration:
(nonnull id<MGLLocationManager>)manager;

Swift

func locationManagerShouldDisplayHeadingCalibration(_ manager: MGLLocationManager) -> Bool

Parameters

manager

The location manager reporting the calibration.

Responding to Location Updates Errors

-locationManager:didFailWithError:

Notifies the delegate that the location manager was unable to retrieve location updates.

Declaration

Objective-C

- (void)locationManager:(nonnull id<MGLLocationManager>)manager
   didFailWithError:(nonnull NSError *)error;

Swift

func locationManager(_ manager: MGLLocationManager, didFailWithError error: Error)

Parameters

manager

The location manager reporting the error.

error

An error object containing the error code that indicates why the location manager failed.

-locationManagerDidChangeAuthorization:

Notifies the delegate that the location authorization status has changed.

Declaration

Objective-C

- (void)locationManagerDidChangeAuthorization:
(nonnull id<MGLLocationManager>)manager;

Swift

func locationManagerDidChangeAuthorization(_ manager: MGLLocationManager)

Parameters

manager

The location manager reporting the change.