From df70005c12e3be14bfbdf0b32f9ea0a5c052deba Mon Sep 17 00:00:00 2001
From: Danny Arnold <despair.blue@gmail.com>
Date: Mon, 30 Nov 2015 07:32:24 -0800
Subject: [PATCH] calling navigationBar's overridden ref function

Summary: Before that it was not possible to get a ref to a navigation bar (unless using Navigator's internal `_navBar` prop)
Closes https://github.com/facebook/react-native/pull/3755

Reviewed By: svcscm

Differential Revision: D2674315

Pulled By: nicklockwood

fb-gh-sync-id: 26120f7bcbb675e8217b8bd963dcc6ed314d4ba3
---
 Libraries/CustomComponents/Navigator/Navigator.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Libraries/CustomComponents/Navigator/Navigator.js b/Libraries/CustomComponents/Navigator/Navigator.js
index ff7ff2c63..e11ee2505 100644
--- a/Libraries/CustomComponents/Navigator/Navigator.js
+++ b/Libraries/CustomComponents/Navigator/Navigator.js
@@ -1087,7 +1087,10 @@ var Navigator = React.createClass({
       return null;
     }
     return React.cloneElement(this.props.navigationBar, {
-      ref: (navBar) => { this._navBar = navBar; },
+      ref: (navBar) => {
+        this.props.navigationBar.ref instanceof Function && this.props.navigationBar.ref(navBar);
+        this._navBar = navBar;
+      },
       navigator: this._navigationBarNavigator,
       navState: this.state,
     });