重定向

了解如何在 Expo Router 中重定向 URL。

你可以根据应用内的一些条件将请求重定向到不同的 URL。Expo Router 支持多种不同的重定向模式。

🌐 You can redirect a request to a different URL based on some in-app criteria. Expo Router supports a number of different redirection patterns.

使用 Redirect 组件

🌐 Using Redirect component

你可以使用 Redirect 组件从特定屏幕立即重定向：

🌐 You can immediately redirect from a particular screen by using the Redirect component:

import { View, Text } from 'react-native';
import { Redirect } from 'expo-router';

export default function Page() {
  const { user } = useAuth();

  if (!user) {
    return <Redirect href="/login" />;
  }

  return (
    <View>
      <Text>Welcome Back!</Text>
    </View>
  );
}

使用 useRouter 钩子

🌐 Using useRouter hook

你也可以使用 useRouter 钩子进行命令式重定向：

🌐 You can also redirect imperatively with the useRouter hook:

import { Text } from 'react-native';
import { useRouter, useFocusEffect } from 'expo-router';

function MyScreen() {
  const router = useRouter();

  useFocusEffect(() => {
    // Call the replace method to redirect to a new route without adding to the history.
    // We do this in a useFocusEffect to ensure the redirect happens every time the screen
    // is focused.
    router.replace('/profile/settings');
  });

  return <Text>My Screen</Text>;
}