From c3f5fd591310a65d9097689b6a1a125a0c9a63c4 Mon Sep 17 00:00:00 2001
From: David <davojan@gmail.com>
Date: Thu, 31 Aug 2017 16:54:27 +0300
Subject: [PATCH] allow changing tabBar visibility dynamically (e.g. via
 Action.refresh) (#2311)

---
 dist/navigationStore.js | 16 +++++++++++-----
 src/navigationStore.js  |  8 +++++++-
 2 files changed, 18 insertions(+), 6 deletions(-)

diff --git a/dist/navigationStore.js b/dist/navigationStore.js
index 467fb4d97..e32988cff 100644
--- a/dist/navigationStore.js
+++ b/dist/navigationStore.js
@@ -186,7 +186,13 @@ if(back){
 res.headerLeft=renderBackButton&&renderBackButton(state)||_react2.default.createElement(BackNavBarButton,_extends({},state,{__source:{fileName:_jsxFileName,lineNumber:186}}));
 }
 
-if(hideTabBar){
+
+
+if(navigationParams.hideTabBar!=null){
+if(navigationParams.hideTabBar){
+res.tabBarVisible=false;
+}
+}else if(hideTabBar){
 res.tabBarVisible=false;
 }
 if(hideNavBar){
@@ -233,7 +239,7 @@ store.deleteRef(originalRouteName(navigation.state.routeName));
 }},{key:'render',value:function render()
 {var _this2=this;
 var navigation=this.props.navigation;
-return _react2.default.createElement(Component,_extends({ref:function ref(_ref4){return _this2.ref=_ref4;}},this.props,navigation.state.params,{name:navigation.state.routeName,__source:{fileName:_jsxFileName,lineNumber:236}}));
+return _react2.default.createElement(Component,_extends({ref:function ref(_ref4){return _this2.ref=_ref4;}},this.props,navigation.state.params,{name:navigation.state.routeName,__source:{fileName:_jsxFileName,lineNumber:242}}));
 }}]);return Wrapped;}(_react2.default.Component),_class.propTypes={navigation:_propTypes2.default.object},_temp);
 
 return wrapper(Wrapped);
@@ -241,7 +247,7 @@ return wrapper(Wrapped);
 
 
 function StatelessWrapped(_ref5){var navigation=_ref5.navigation,props=_objectWithoutProperties(_ref5,['navigation']);
-return _react2.default.createElement(Component,_extends({},props,{navigation:navigation},navigation.state.params,{name:navigation.state.routeName,__source:{fileName:_jsxFileName,lineNumber:244}}));
+return _react2.default.createElement(Component,_extends({},props,{navigation:navigation},navigation.state.params,{name:navigation.state.routeName,__source:{fileName:_jsxFileName,lineNumber:250}}));
 }
 StatelessWrapped.propTypes={
 navigation:_propTypes2.default.object};
@@ -433,8 +439,8 @@ if(lightbox){
 return(0,_LightboxNavigator2.default)(res,_extends({mode:mode,initialRouteParams:initialRouteParams,initialRouteName:initialRouteName},commonProps,{navigationOptions:createNavigationOptions(commonProps)}));
 }else if(tabs){
 if(!tabBarComponent){
-tabBarComponent=tabBarPosition==='top'?function(props){return _react2.default.createElement(_reactNavigation.TabBarTop,_extends({},props,commonProps,{__source:{fileName:_jsxFileName,lineNumber:436}}));}:
-function(props){return _react2.default.createElement(_reactNavigation.TabBarBottom,_extends({},props,commonProps,{__source:{fileName:_jsxFileName,lineNumber:437}}));};
+tabBarComponent=tabBarPosition==='top'?function(props){return _react2.default.createElement(_reactNavigation.TabBarTop,_extends({},props,commonProps,{__source:{fileName:_jsxFileName,lineNumber:442}}));}:
+function(props){return _react2.default.createElement(_reactNavigation.TabBarBottom,_extends({},props,commonProps,{__source:{fileName:_jsxFileName,lineNumber:443}}));};
 }
 if(!tabBarPosition){
 tabBarPosition=_reactNative.Platform.OS==='android'?'top':'bottom';
diff --git a/src/navigationStore.js b/src/navigationStore.js
index d33827521..5067f2ed3 100644
--- a/src/navigationStore.js
+++ b/src/navigationStore.js
@@ -186,7 +186,13 @@ function createNavigationOptions(params) {
       res.headerLeft = (renderBackButton && renderBackButton(state)) || <BackNavBarButton {...state} />;
     }
 
-    if (hideTabBar) {
+    // currect dynamic navigation params has priority over static scene params
+    // but taking them into account only if they are explicitly set (not null or undefined)
+    if (navigationParams.hideTabBar != null) {
+      if (navigationParams.hideTabBar) {
+        res.tabBarVisible = false;
+      }
+    } else if (hideTabBar) {
       res.tabBarVisible = false;
     }
     if (hideNavBar) {