From 01b5636df0f7fe885176ad4918d18c5aa12de11d Mon Sep 17 00:00:00 2001
From: "Justin R. Miller" <incanus@codesorcery.net>
Date: Tue, 11 Aug 2015 15:10:55 -0700
Subject: [PATCH] fixes #1951: check for support of title before querying

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

diff --git a/platform/ios/MGLMapView.mm b/platform/ios/MGLMapView.mm
index 3a517ddef..895066355 100644
--- a/platform/ios/MGLMapView.mm
+++ b/platform/ios/MGLMapView.mm
@@ -2047,7 +2047,9 @@ CLLocationCoordinate2D MGLLocationCoordinate2DFromLatLng(mbgl::LatLng latLng)
 
     self.selectedAnnotation = annotation;
 
-    if (annotation.title && [self.delegate respondsToSelector:@selector(mapView:annotationCanShowCallout:)] &&
+    if ([annotation respondsToSelector:@selector(title)] &&
+        annotation.title &&
+        [self.delegate respondsToSelector:@selector(mapView:annotationCanShowCallout:)] &&
         [self.delegate mapView:self annotationCanShowCallout:annotation])
     {
         // build the callout