From bd63eef7a0beb389b552814cc32fe9d93d3f029c Mon Sep 17 00:00:00 2001
From: QuanPV <quanpv@ows.vn>
Date: Wed, 3 May 2017 09:14:58 +0700
Subject: [PATCH 1/2] Prevent navigating twice when tapping too fast

---
 src/addNavigationHelpers.js | 31 +++++++++++++++++++++++--------
 1 file changed, 23 insertions(+), 8 deletions(-)

diff --git a/src/addNavigationHelpers.js b/src/addNavigationHelpers.js
index d7c468bc52..8c293596f7 100644
--- a/src/addNavigationHelpers.js
+++ b/src/addNavigationHelpers.js
@@ -13,6 +13,7 @@ import type {
 import NavigationActions from './NavigationActions';
 
 export default function<S: *>(navigation: NavigationProp<S, NavigationAction>) {
+  let debounce = true;
   return {
     ...navigation,
     goBack: (key?: ?string): boolean =>
@@ -25,14 +26,28 @@ export default function<S: *>(navigation: NavigationProp<S, NavigationAction>) {
       routeName: string,
       params?: NavigationParams,
       action?: NavigationAction,
-    ): boolean =>
-      navigation.dispatch(
-        NavigationActions.navigate({
-          routeName,
-          params,
-          action,
-        }),
-      ),
+    ): boolean => {
+      if (debounce) {
+        debounce = false;
+        navigation.dispatch(
+          NavigationActions.navigate({
+            routeName,
+            params,
+            action,
+          }),
+        );
+        setTimeout(
+          () => {
+            debounce = true;
+          },
+          500,
+        );
+
+        return true;
+      }
+      return false;
+    },
+
     /**
      * For updating current route params. For example the nav bar title and
      * buttons are based on the route params.

From cc8edcf957a220a10022991934e70ea2666a8032 Mon Sep 17 00:00:00 2001
From: QuanPV <doraemonfanclub@gmail.com>
Date: Wed, 3 May 2017 09:30:33 +0700
Subject: [PATCH 2/2] Removed unnecessary empty line

---
 src/addNavigationHelpers.js | 1 -
 1 file changed, 1 deletion(-)

diff --git a/src/addNavigationHelpers.js b/src/addNavigationHelpers.js
index 8c293596f7..f1042edcdb 100644
--- a/src/addNavigationHelpers.js
+++ b/src/addNavigationHelpers.js
@@ -42,7 +42,6 @@ export default function<S: *>(navigation: NavigationProp<S, NavigationAction>) {
           },
           500,
         );
-
         return true;
       }
       return false;