在React Native中使用goBack()时，如何检测语言是否已更改？

import React, { useContext } from 'react';
import { Button, Text, View } from 'react-native';

// 创建语言上下文
const LanguageContext = React.createContext();

// 语言管理器组件
const LanguageProvider = ({ children }) => {
  const [language, setLanguage] = React.useState('en'); // 默认语言为英语

  // 处理语言更改
  const handleLanguageChange = (newLanguage) => {
    setLanguage(newLanguage);
  };

  return (
    <LanguageContext.Provider value={{ language, handleLanguageChange }}>
      {children}
    </LanguageContext.Provider>
  );
};

// 屏幕组件
const Screen = () => {
  const { language, handleLanguageChange } = useContext(LanguageContext);

  // 模拟语言更改
  const changeLanguage = () => {
    handleLanguageChange('fr'); // 将语言更改为法语
  };

  // 检查语言是否已更改
  const checkLanguageChange = () => {
    if (language !== 'en') {
      // 执行一些操作，如重新加载屏幕或更新文本
      console.log('Language has changed!');
    }
  };

  return (
    <View>
      <Text>Screen Content</Text>
      <Button title="Change Language" onPress={changeLanguage} />
      <Button title="Go Back" onPress={checkLanguageChange} />
    </View>
  );
};

// 应用程序组件
const App = () => {
  return (
    <LanguageProvider>
      <Screen />
    </LanguageProvider>
  );
};

export default App;