From 398e9754cdf03fe7cbcf970eb793bbb3b5195f9e Mon Sep 17 00:00:00 2001
From: Christoph Nakazawa <cpojer@fb.com>
Date: Tue, 22 Jan 2019 07:22:08 -0800
Subject: [PATCH] Fixes #issue18098 SectionList scrollToLocation (#21577)

Summary:
Fixes #18098
Pull Request resolved: https://github.com/facebook/react-native/pull/21577

Differential Revision: D13761884

Pulled By: cpojer

fbshipit-source-id: a096d69c589815d00754427fb575de0d8d0b595f
---
 Libraries/Lists/VirtualizedSectionList.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Libraries/Lists/VirtualizedSectionList.js b/Libraries/Lists/VirtualizedSectionList.js
index 2e2256287fc604..e314871c4ee13a 100644
--- a/Libraries/Lists/VirtualizedSectionList.js
+++ b/Libraries/Lists/VirtualizedSectionList.js
@@ -9,6 +9,7 @@
  */
 'use strict';
 
+const Platform = require('Platform');
 const React = require('React');
 const View = require('View');
 const VirtualizedList = require('VirtualizedList');
@@ -145,7 +146,7 @@ class VirtualizedSectionList<SectionT: SectionBase> extends React.PureComponent<
     sectionIndex: number,
     viewPosition?: number,
   }) {
-    let index = params.itemIndex + 1;
+    let index = Platform.OS === 'ios' ? params.itemIndex : params.itemIndex - 1;
     for (let ii = 0; ii < params.sectionIndex; ii++) {
       index += this.props.sections[ii].data.length + 2;
     }