From 5189c94a6e876ef5274b22c083034a561ef3d5e8 Mon Sep 17 00:00:00 2001
From: Hedger Wang <hedger@fb.com>
Date: Tue, 12 Jul 2016 17:39:10 -0700
Subject: [PATCH] Fix Navigator transition.

Summary: Fix the bug reported as https://github.com/facebook/react-native/pull/8071

Reviewed By: fkgozali

Differential Revision: D3553062

fbshipit-source-id: 286feddc268f51c0d9005a8831640c5e6af4880e
---
 Libraries/CustomComponents/Navigator/Navigator.js | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/Libraries/CustomComponents/Navigator/Navigator.js b/Libraries/CustomComponents/Navigator/Navigator.js
index 63b53b03f..d5fbd0674 100644
--- a/Libraries/CustomComponents/Navigator/Navigator.js
+++ b/Libraries/CustomComponents/Navigator/Navigator.js
@@ -501,13 +501,13 @@ var Navigator = React.createClass({
   },
 
   _transitionTo: function(destIndex, velocity, jumpSpringTo, cb) {
-    if (
-      destIndex === this.state.presentedIndex &&
-      this.state.transitionQueue.length === 0
-    ) {
+    if (this.state.presentedIndex === destIndex) {
+      cb && cb();
       return;
     }
+
     if (this.state.transitionFromIndex !== null) {
+      // Navigation is still transitioning, put the `destIndex` into queue.
       this.state.transitionQueue.push({
         destIndex,
         velocity,