From f119524945b8aec8eb8fd5e98453846f400193c6 Mon Sep 17 00:00:00 2001
From: Jesse Bounds <jesse@rebounds.net>
Date: Tue, 24 Oct 2017 12:03:36 -0700
Subject: [ios] Asynchronously dispatch scale bar updates on camera updates

---
 platform/ios/src/MGLMapView.mm | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/platform/ios/src/MGLMapView.mm b/platform/ios/src/MGLMapView.mm
index 0e76c0c71c..9d9fd7005a 100644
--- a/platform/ios/src/MGLMapView.mm
+++ b/platform/ios/src/MGLMapView.mm
@@ -5071,7 +5071,9 @@ public:
     [self updateCompass];
     
     if (!self.scaleBar.hidden) {
-        [(MGLScaleBar *)self.scaleBar setMetersPerPoint:[self metersPerPointAtLatitude:self.centerCoordinate.latitude]];
+        dispatch_async(dispatch_get_main_queue(), ^{
+            [(MGLScaleBar *)self.scaleBar setMetersPerPoint:[self metersPerPointAtLatitude:self.centerCoordinate.latitude]];
+        });
     }
     
     if ([self.delegate respondsToSelector:@selector(mapViewRegionIsChanging:)])
-- 
cgit v1.2.1