How can I implement authentication in a React Navigation app?

How can I implement authentication in a React Navigation app?

You can implement authentication in a React Navigation app by using a combination of React Context and navigation state.

What are the steps to set up React Context for authentication?

First, create a context for your auth state, then wrap your app in the context provider. Finally, manage the login and logout functions.

Can you show me a code example for that?

Sure! Here's a simple example:

const AuthContext = React.createContext();

const AuthProvider = ({ children }) => {
  const [user, setUser] = useState(null);

  const login = (userData) => setUser(userData);
  const logout = () => setUser(null);

  return (
    <AuthContext.Provider value={{ user, login, logout }}>
      {children}
    </AuthContext.Provider>
  );
};

You can then use this context in your components.