Only console log the features-as-annotations warning once per session

mapbox · Jul 19, 2017 · 032157a · 032157a
1 parent 5fabed1
commit 032157a
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/platform/ios/src/MGLMapView.mm b/platform/ios/src/MGLMapView.mm
@@ -3189,7 +3189,10 @@ - (void)addAnnotations:(NS_ARRAY_OF(id <MGLAnnotation>) *)annotations
 
         if ([annotation conformsToProtocol:@protocol(MGLFeature)])
         {
-            NSLog(@"Warning: Annotations that conform to the MGLFeature protocol do not keep their `identifier` or `attributes` properties when added to the map as annotations. Add this feature using runtime styling if you intend to later query the map for it. %@", annotation.description);
+            static dispatch_once_t onceToken;
+            dispatch_once(&onceToken, ^{
+                NSLog(@"Annotations that conform to the MGLFeature protocol do not keep their `identifier` or `attributes` properties when added to the map as annotations. Add this feature using runtime styling if you intend to later query the map for it. This warning is only shown once. %@", annotation.description);
+            });
         }
 
         // adding the same annotation object twice is a no-op