From de5149bac464b158ff88a066d092178bca59ae87 Mon Sep 17 00:00:00 2001
From: zongwan <zongwan@users.noreply.github.com>
Date: Mon, 22 May 2017 13:03:18 +0800
Subject: [PATCH] Update VirtualizedList.js

fix #14033
fix wrong position after `scrollToEnd` when `props.refreshing === true`
---
 Libraries/Lists/VirtualizedList.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Libraries/Lists/VirtualizedList.js b/Libraries/Lists/VirtualizedList.js
index 21ce56dc0e61..2cf035721953 100644
--- a/Libraries/Lists/VirtualizedList.js
+++ b/Libraries/Lists/VirtualizedList.js
@@ -192,8 +192,8 @@ class VirtualizedList extends React.PureComponent<OptionalProps, Props, State> {
     const animated = params ? params.animated : true;
     const veryLast = this.props.getItemCount(this.props.data) - 1;
     const frame = this._getFrameMetricsApprox(veryLast);
-    const offset = frame.offset + frame.length + this._footerLength -
-      this._scrollMetrics.visibleLength;
+    const offset = Math.max(0, frame.offset + frame.length + this._footerLength -
+      this._scrollMetrics.visibleLength);
     this._scrollRef.scrollTo(
       this.props.horizontal ? {x: offset, animated} : {y: offset, animated}
     );