How to hide bottom tab navigation in login screen? - react-native

Question

I want to hide the bottom tab bar in login page and show it to the other screens how can i achieve this?
right now there's bottom tab bar at the login screen i want to remove it and show it once i signed in. if anyone knows how to this please help. i got some idea from this answer React Native: How to hide bottom bar before login and show it once the user is logged in? but I have no idea how to check weather the user is signed in or not ! how can i pass it from my login screen to app.js?
this is my app.js
import { createStackNavigator } from "react-navigation-stack";
import { createAppContainer, createSwitchNavigator} from "react-navigation";
import LoginScreen from './src/screens/login';
import Orders from './src/screens/home';
import TransactionScreen from './src/screens/transactionScreen';
import Logout from './src/screens/footer';
import { Icon } from "react-native-elements";
import * as React from "react";
import { View, Image, Text, ActivityIndicator ,SafeAreaView,StatusBar,Alert} from "react-native";
import { createBottomTabNavigator } from 'react-navigation-tabs';
import AsyncStorage from "#react-native-community/async-storage";
// const Apps = createStackNavigator({
// LoginScreen: { screen: LoginScreen },
// Home :{
// screen:Home
// },
// TransactionScreen:{
// screen:TransactionScreen,
// navigationOptions: {
// headerTitle: "Transactions",
// headerStyle: {
// backgroundColor: "white",
// },
// headerTintColor: "black",
// },
// }
// });
// const App = createAppContainer(Apps);
// export default App;
class IconWithBadge extends React.Component {
render() {
const { name, badgeCount, color, size,type } = this.props;
return (
<View style={{ width: 24, height: 24 }}>
<Icon name={name} size={size} type={type} color={color} />
</View>
);
}
}
const getTabBarIcon = (navigation, focused, tintColor) => {
const { routeName } = navigation.state;
let IconComponent = Icon;
let iconName;
let type =null;
if (routeName === "Orders") {
iconName = `kitchen`;
} else if (routeName === "Transactions") {
iconName = `account-balance`;
} else if (routeName === "Logout") {
iconName = `settings`;
type="font-awesome"
}
// You can return any component that you like here!
return <IconWithBadge name={iconName} type={type} color={tintColor} />;
};
const AuthStack = createStackNavigator({
LoginScreen: { screen: LoginScreen },
});
const RootStack = createBottomTabNavigator(
{
Orders: { screen: Orders },
Transactions: { screen: TransactionScreen },
Logout: {
screen: Logout,
navigationOptions:({navigation}) => ({
tabBarOnPress:(scene, jumpToIndex) => {
return Alert.alert(
"Confirmation Required",
'Do you want to logout?',
[
{text:"Yes", onPress: ()=>{AsyncStorage.clear(); navigation.navigate('Auth')}},
{text:"Cancel"}
]
)
}
})
}
},
{
defaultNavigationOptions: ({ navigation }) => ({
tabBarIcon: ({ focused, tintColor }) =>
getTabBarIcon(navigation, focused, tintColor),
}),
tabBarOptions: {
// initialRouteName: "FirstScreen",
activeTintColor: "yellow",
activeBackgroundColor: "#023333",
inactiveTintColor: "white",
inactiveBackgroundColor: "#023333",
upperCaseLabel: true,
showIcon: true,
barStyle: { backgroundColor: "#fff" },
lazy: false,
},
}
);
class AuthLoadingScreen extends React.Component{
constructor(props){
super(props);
this._loadData();
}
_loadData = async() =>{
const isLoggedIn = await AsyncStorage.getItem('isLoggedIn');
this.props.navigation.navigate(isLoggedIn !== '1'? 'Auth' : 'App');
}
render(){
return(
<SafeAreaView style={{flex:1,justifyContent:'center',alignItems:'center'}}>
<StatusBar barStyle="dark-content"/>
<ActivityIndicator/>
</SafeAreaView>
);
}
}
export default createAppContainer(createSwitchNavigator(
{
AuthLoading: AuthLoadingScreen,
App:RootStack,
Auth:AuthStack
},
{
initialRouteName:'AuthLoading'
}
))

Answer 1

Looks like you're using navigation-stack and navigation-tabs.
For that I have a solution. then make a structure like this.
import {createBottomTabNavigator} from '#react-navigation/bottom-tabs';
import {createStackNavigator} from '#react-navigation/stack';
if you want to display bottom navigation. create a tab screen function like this.
function HomeTabs() {
return (
<Tab.Navigator>
<Tab.Screen name="Home" component={Home} />
<Tab.Screen name="Feed" component={Feed} />
<Tab.Screen name="Notifications" component={Notifications} />
</Tab.Navigator>
);
}
then call in navigation container.
<NavigationContainer>
<Stack.Navigator>
<Stack.Screen
name="Home"
component={HomeTabs}
/>
<Stack.Screen
name="Login"
component={LoginScreen}
/>
<Stack.Screen
name="Signup"
component={SignupScreen}
/>
)}
</Stack.Navigator>
</NavigationContainer>
After re-organizing the navigation structure, now if we navigate to the Login or Signup screens, the tab bar won't be visible over the screen anymore.
ref : https://reactnavigation.org/docs/hiding-tabbar-in-screens/