From 7cfbb79617e7455fc2c9d1fb2e179b3d5844880b Mon Sep 17 00:00:00 2001
From: Spencer Ahrens <sahrens@fb.com>
Date: Tue, 14 Feb 2017 18:24:20 -0800
Subject: [PATCH] Propagate onScroll

Reviewed By: yungsters

Differential Revision: D4557672

fbshipit-source-id: a265231dbc992a84449e5ae051530f63f7b8efd4
---
 Libraries/Experimental/VirtualizedList.js | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Libraries/Experimental/VirtualizedList.js b/Libraries/Experimental/VirtualizedList.js
index 6659e383d..8d90c286e 100644
--- a/Libraries/Experimental/VirtualizedList.js
+++ b/Libraries/Experimental/VirtualizedList.js
@@ -237,6 +237,10 @@ class VirtualizedList extends React.PureComponent {
 
   constructor(props: Props) {
     super(props);
+    invariant(
+      !props.onScroll || !props.onScroll.__isNative,
+      'VirtualizedList does not support AnimatedEvent with onScroll and useNativeDriver',
+    );
     this._updateCellsToRenderBatcher = new Batchinator(
       this._updateCellsToRender,
       this.props.updateCellsBatchingPeriod,
@@ -484,6 +488,9 @@ class VirtualizedList extends React.PureComponent {
   };
 
   _onScroll = (e: Object) => {
+    if (this.props.onScroll) {
+      this.props.onScroll(e);
+    }
     const timestamp = e.timeStamp;
     const visibleLength = this._selectLength(e.nativeEvent.layoutMeasurement);
     const contentLength = this._selectLength(e.nativeEvent.contentSize);