From ebddd79e21f6974a983c68e3071a98752e9da46d Mon Sep 17 00:00:00 2001
From: MariaYu <myuart17@gmail.com>
Date: Wed, 1 Nov 2017 15:10:14 -0700
Subject: [ios] Add const heading accuracy threshold in degree.

---
 platform/ios/src/MGLFaux3DUserLocationAnnotationView.m | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/platform/ios/src/MGLFaux3DUserLocationAnnotationView.m b/platform/ios/src/MGLFaux3DUserLocationAnnotationView.m
index b2b9d00af6..eb351891e0 100644
--- a/platform/ios/src/MGLFaux3DUserLocationAnnotationView.m
+++ b/platform/ios/src/MGLFaux3DUserLocationAnnotationView.m
@@ -14,6 +14,8 @@ const CGFloat MGLUserLocationAnnotationArrowSize = MGLUserLocationAnnotationPuck
 
 const CGFloat MGLUserLocationHeadingUpdateThreshold = 0.01;
 
+const CLLocationDirection MGLLUserLocationHeadingAccuracyThreshold = 30;
+
 @implementation MGLFaux3DUserLocationAnnotationView
 {
     BOOL _puckModeActivated;
@@ -245,7 +247,7 @@ const CGFloat MGLUserLocationHeadingUpdateThreshold = 0.01;
             _oldHeadingAccuracy = -1;
         }
 
-        bool validHeadingAccuracy = headingAccuracy > 0 && headingAccuracy < kCLLocationAccuracyNearestTenMeters;
+        bool validHeadingAccuracy = headingAccuracy > 0 && headingAccuracy <= MGLLUserLocationHeadingAccuracyThreshold;
         
         if ( ! _headingIndicatorLayer && validHeadingAccuracy)
         {
-- 
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