Document -mapViewDidFailLoadingMap:withError: (#6145)

* [macos] Implement -mapViewDidFailLoadingMap:withError:

* [ios] Documented -mapViewDidFailLoadingMap:withError:

1 files changed, 13 insertions, 0 deletions

diff --git a/platform/macos/src/MGLMapViewDelegate.h b/platform/macos/src/MGLMapViewDelegate.h
index c84ad42cf3..8f4922d304 100644
--- a/platform/macos/src/MGLMapViewDelegate.h
+++ b/platform/macos/src/MGLMapViewDelegate.h
@@ -83,6 +83,19 @@ NS_ASSUME_NONNULL_BEGIN
  */
 - (void)mapViewDidFinishLoadingMap:(MGLMapView *)mapView;
 
+/**
+ Tells the delegate that the map view was unable to load data needed for
+ displaying the map.
+ 
+ This method may be called for a variety of reasons, including a network
+ connection failure or a failure to fetch the style from the server. You can use
+ the given error message to notify the user that map data is unavailable.
+ 
+ @param mapView The map view that is unable to load the data.
+ @param error The reason the data could not be loaded.
+ */
+- (void)mapViewDidFailLoadingMap:(MGLMapView *)mapView withError:(NSError *)error;
+
 - (void)mapViewWillStartRenderingMap:(MGLMapView *)mapView;
 - (void)mapViewDidFinishRenderingMap:(MGLMapView *)mapView fullyRendered:(BOOL)fullyRendered;