为React Native中的多个元素创建切换函数

import React, { useState } from 'react';
import { View, Text, TouchableOpacity, StyleSheet } from 'react-native';

const App = () => {
  const [activeTab, setActiveTab] = useState('home');

  const handleTabPress = (tab) => {
    setActiveTab(tab);
  };

  return (
    <View style={styles.container}>
      <TouchableOpacity onPress={() => handleTabPress('home')} style={styles.tab}>
        <Text style={[styles.tabText, activeTab === 'home' && styles.activeTabText]}>
          Home
        </Text>
      </TouchableOpacity>
      <TouchableOpacity onPress={() => handleTabPress('settings')} style={styles.tab}>
        <Text style={[styles.tabText, activeTab === 'settings' && styles.activeTabText]}>
          Settings
        </Text>
      </TouchableOpacity>
      {activeTab === 'home' && <HomeComponent />}
      {activeTab === 'settings' && <SettingsComponent />}
    </View>
  );
};

const HomeComponent = () => <Text>Home Component</Text>;
const SettingsComponent = () => <Text>Settings Component</Text>;

const styles = StyleSheet.create({
  container: {
    flex: 1,
    justifyContent: 'center',
    alignItems: 'center',
  },
  tab: {
    padding: 10,
    margin: 5,
    borderWidth: 1,
    borderColor: '#ccc',
    borderRadius: 5,
  },
  tabText: {
    fontSize: 16,
  },
  activeTabText: {
    color: 'blue',
    fontWeight: 'bold',
  },
});

export default App;