React本机等待，直到用户登录后再导航屏幕

import React, { useState, useEffect } from 'react';
import { BrowserRouter as Router, Route, Redirect, withRouter } from 'react-router-dom';

// 登录页面组件
const LoginPage = () => {
  const [username, setUsername] = useState('');
  const [password, setPassword] = useState('');

  const handleLogin = () => {
    // 处理登录逻辑
  };

  return (
    <div>
      <input type="text" value={username} onChange={(e) => setUsername(e.target.value)} />
      <input type="password" value={password} onChange={(e) => setPassword(e.target.value)} />
      <button onClick={handleLogin}>登录</button>
    </div>
  );
};

// 受保护的路由组件
const ProtectedRoute = ({ component: Component, ...rest }) => {
  const isAuthenticated = // 获取登录状态的逻辑

  return (
    <Route
      {...rest}
      render={(props) =>
        isAuthenticated ? (
          <Component {...props} />
        ) : (
          <Redirect to="/login" />
        )
      }
    />
  );
};

// 导航组件
const Navigation = withRouter(({ history }) => {
  const [isAuthenticated, setIsAuthenticated] = useState(false);

  useEffect(() => {
    // 监听登录状态的变化
    // 更新isAuthenticated状态
  }, []);

  const handleLogout = () => {
    // 处理登出逻辑
  };

  return (
    <div>
      {isAuthenticated ? (
        <button onClick={handleLogout}>登出</button>
      ) : (
        <button onClick={() => history.push('/login')}>登录</button>
      )}
    </div>
  );
});

// 应用程序组件
const App = () => {
  return (
    <Router>
      <Navigation />
      <Route path="/login" component={LoginPage} />
      <ProtectedRoute path="/dashboard" component={Dashboard} />
    </Router>
  );
};

export default App;