switchNavigator with react-navigation 5

Question

With react-navigation 4, I was able to import and use switchNavigator from "react-navigation" package.

import {
  createAppContainer,
  createSwitchNavigator,
  createStackNavigator
} from "react-navigation";

import MainTabNavigator from "./MainTabNavigator";
import LoginScreen from "../screens/LoginScreen";
import AuthLoadingScreen from "../screens/AuthLoadingScreen";

export default createAppContainer(
  createSwitchNavigator(
    {
      App: MainTabNavigator,
      Auth: AuthLoadingScreen,
      Login: createStackNavigator({ Login: LoginScreen })
    },

    {
      initialRouteName: "Auth"
    }
  )
);

With react-navigation 5, I don't see the createSwitchNavigator in the package anymore. The documentation isn't helpful either. Is the use now not recommended? My use case is to show login screen before user is logged in and switch to the app after user logs in. React-navigation has given an example of authentication flow but is it possible to use switchNavigator - which seems much simpler.

Answer 1

The switchNavigator was removed because you can do the exact same stuff now with the help of rendering components conditionally.

import React from 'react';
import {useSelector} from "react-redux";
import {NavigationContainer} from "@react-navigation/native";

import { AuthNavigator, MyCustomNavigator } from "./MyCustomNavigator";

const AppNavigator = props => {
    const isAuth = useSelector(state => !!state.auth.access_token);

    return (
        <NavigationContainer>
            { isAuth && <MyCustomNavigator/>}
            { !isAuth && <AuthNavigator/>}
        </NavigationContainer>
    );
};
export default AppNavigator;

The lines inside the NavigationContainer fully replace the old switch navigator.

Answer 2

I had also used SwitchNavigator of Navigator 4 then after migrating other pages to Navigator 5, i tried to move authentication part to Navigator 5. I could not achieve SwitchNavigator functionality using Navigator 5. Then decided to use "Compatibility layer" provided in Navigation API 5. https://reactnavigation.org/docs/5.x/compatibility
Hope below code will useful for you.

import { createStackNavigator } from '@react-navigation/stack'
import { NavigationContainer } from '@react-navigation/native';
import { createSwitchNavigator } from "@react-navigation/compat";
import { createCompatNavigatorFactory } from '@react-navigation/compat'
 const AppStack = createCompatNavigatorFactory(createStackNavigator)(
      { screen: Home },
      {headerMode:'none'}
 );
 const AuthStack = createCompatNavigatorFactory(createStackNavigator)({ screen:Login });
const SwitchNavigator= createSwitchNavigator(
      {
    Starter: AuthValidation,
    App: AppStack,
    Auth: AuthStack
  },
  {
    initialRouteName:'Starter'
  }
);
export default function App (){
  
    return(
      <NavigationContainer>
          <SwitchNavigator/>
      </NavigationContainer>
    );
}

Here AuthValidation validate for token and depending on value it navigate to "Login" or "Home" Page

_checkAuthetication = async() =>{
  const isUserAuthenticated= await AsyncStorage.getItem("isAuthenticated");
  this.props.navigation.navigate(isUserAuthenticated ? 'App':'Auth');
}