From fcb667059d3156327c141eadeed7f3cb771d8f79 Mon Sep 17 00:00:00 2001
From: Peter Argany <petetheheat@fb.com>
Date: Thu, 6 Aug 2020 17:29:58 -0700
Subject: [PATCH] Fix refresh control redbox

Summary: Changelog:[Internal]

Reviewed By: Vince0613

Differential Revision: D22989945

fbshipit-source-id: 735da1cf103b2465663ecb6abfd49e512aff9a1e
---
 React/Views/ScrollView/RCTScrollView.m | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/React/Views/ScrollView/RCTScrollView.m b/React/Views/ScrollView/RCTScrollView.m
index 80a7d09714c..7e341219a63 100644
--- a/React/Views/ScrollView/RCTScrollView.m
+++ b/React/Views/ScrollView/RCTScrollView.m
@@ -233,7 +233,9 @@
   // We have to set this because we can't always guarantee the
   // `RCTCustomRefreshContolProtocol`'s superview will always be of class
   // `UIScrollView` like we were previously
-  _customRefreshControl.scrollView = self;
+  if ([_customRefreshControl respondsToSelector:@selector(setScrollView:)]) {
+    _customRefreshControl.scrollView = self;
+  }
   if ([refreshControl isKindOfClass:UIRefreshControl.class]) {
     self.refreshControl = (UIRefreshControl *)refreshControl;
   } else {