How do I implement authentication in a React Navigation app for Android?

How do I implement authentication in a React Navigation app for Android?

To implement authentication in a React Navigation app for Android, you can use React Context or Redux for state management. Start by setting up your navigation structure and then create a login screen. After successful authentication, navigate to the main app screen.

What libraries should I use for authentication?

You can use libraries like Firebase Authentication, Auth0, or even custom solutions with JWT tokens. Firebase is popular for its ease of use.

Can you show me a code example?

Sure! Here's a simple example using Firebase:

import { createStackNavigator } from '@react-navigation/stack';
import { NavigationContainer } from '@react-navigation/native';

const Stack = createStackNavigator();

function App() {
  return (
    <NavigationContainer>
      <Stack.Navigator>
        <Stack.Screen name="Login" component={LoginScreen} />
        <Stack.Screen name="Home" component={HomeScreen} />
      </Stack.Navigator>
    </NavigationContainer>
  );
}

How do I handle user sessions?

You can manage user sessions by storing the authentication state in context or Redux. Use AsyncStorage to persist the user's login state across app restarts.