From 180f5ab509f085557fa862e0e87f2e20d8af2cc6 Mon Sep 17 00:00:00 2001
From: liuqiang1357 <liuqiang1357@163.com>
Date: Thu, 5 Jul 2018 03:28:01 +0800
Subject: [PATCH] Fix bug: params not be passed to navigator inside
 SwitchNavigator (#4306)

---
 packages/react-navigation/src/routers/SwitchRouter.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/react-navigation/src/routers/SwitchRouter.js b/packages/react-navigation/src/routers/SwitchRouter.js
index 0d7cb0ac..aeaa349b 100644
--- a/packages/react-navigation/src/routers/SwitchRouter.js
+++ b/packages/react-navigation/src/routers/SwitchRouter.js
@@ -196,7 +196,7 @@ export default (routeConfigs, config = {}) => {
             newChildState = childRouter
               ? childRouter.getStateForAction(action.action, childState)
               : null;
-          } else if (!action.action && !childRouter && action.params) {
+          } else if (!action.action && action.params) {
             newChildState = {
               ...childState,
               params: {