From c449d9e72d46f840a70668cfda18ec6e5d7e024d Mon Sep 17 00:00:00 2001
From: Christoph Jerolimov <jerolimov+git+2016@gmail.com>
Date: Thu, 25 Feb 2016 17:07:37 -0800
Subject: [PATCH] Fix an issue (Sticky header index was outside the range) when
 renderSeparator is defined but returns null

Summary:Fix an issue when using ListView and define `renderSeparator` but the implementation returns null.

In such cases the sectionHeaderIndices mismatch the child element index and the app shows a warning like "Sticky header index 18 was outside the range {0, 13}".
Closes https://github.com/facebook/react-native/pull/5800

Differential Revision: D2980005

Pulled By: vjeux

fb-gh-sync-id: cd2d51d83698ed189bb65ea40b7b073644136b49
shipit-source-id: cd2d51d83698ed189bb65ea40b7b073644136b49
---
 Libraries/CustomComponents/ListView/ListView.js | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/Libraries/CustomComponents/ListView/ListView.js b/Libraries/CustomComponents/ListView/ListView.js
index b4931fedb..357994735 100644
--- a/Libraries/CustomComponents/ListView/ListView.js
+++ b/Libraries/CustomComponents/ListView/ListView.js
@@ -394,8 +394,10 @@ var ListView = React.createClass({
             rowID,
             adjacentRowHighlighted
           );
-          bodyComponents.push(separator);
-          totalIndex++;
+          if (separator) {
+            bodyComponents.push(separator);
+            totalIndex++;
+          }
         }
         if (++rowCount === this.state.curRenderedRowsCount) {
           break;