From 15fd1c9a48316a21590042ba07279ee05fec0404 Mon Sep 17 00:00:00 2001
From: roscioli <octavio.d.roscioli@vanderbilt.edu>
Date: Sat, 8 Oct 2016 19:34:38 -0400
Subject: [PATCH] Add optional custom listener if needed

---
 lib/ParallaxView.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/ParallaxView.js b/lib/ParallaxView.js
index 776bdb3..fc0d412 100644
--- a/lib/ParallaxView.js
+++ b/lib/ParallaxView.js
@@ -123,7 +123,8 @@ var ParallaxView = React.createClass({
                     {...props}
                     style={styles.scrollView}
                     onScroll={Animated.event(
-                      [{ nativeEvent: { contentOffset: { y: this.state.scrollY }}}]
+                      [{ nativeEvent: { contentOffset: { y: this.state.scrollY }}}],
+                      {listener: this.props.onScroll}
                     )}
                     scrollEventThrottle={16}>
                     {this.renderHeader()}