如何将搜索栏添加到Picker React Native

import React, { useState } from 'react';
import { View, Picker, TextInput, StyleSheet } from 'react-native';

const SearchablePicker = () => {
  const [selectedValue, setSelectedValue] = useState('');
  const [searchText, setSearchText] = useState('');
  const [filteredItems, setFilteredItems] = useState([]);
  
  // 在这里定义你的选项列表，例如：
  const items = [
    { label: '选项1', value: 'value1' },
    { label: '选项2', value: 'value2' },
    { label: '选项3', value: 'value3' },
    // ...
  ];
  
  // 根据搜索文本过滤选项列表
  const filterItems = (text) => {
    const filtered = items.filter(item =>
      item.label.toLowerCase().includes(text.toLowerCase())
    );
    setFilteredItems(filtered);
    setSearchText(text);
  };
  
  return (
    <View style={styles.container}>
      <TextInput
        style={styles.searchInput}
        placeholder="搜索..."
        value={searchText}
        onChangeText={filterItems}
      />
      <Picker
        selectedValue={selectedValue}
        onValueChange={(itemValue) => setSelectedValue(itemValue)}
      >
        {filteredItems.map(item => (
          <Picker.Item
            key={item.value}
            label={item.label}
            value={item.value}
          />
        ))}
      </Picker>
    </View>
  );
};

const styles = StyleSheet.create({
  container: {
    flex: 1,
    alignItems: 'center',
    justifyContent: 'center',
  },
  searchInput: {
    width: '80%',
    height: 40,
    borderWidth: 1,
    borderColor: 'gray',
    borderRadius: 5,
    paddingHorizontal: 10,
    marginBottom: 10,
  },
});

import React from 'react';
import { View } from 'react-native';
import SearchablePicker from './SearchablePicker';

const App = () => {
  return (
    <View style={{ flex: 1, justifyContent: 'center', alignItems: 'center' }}>
      <SearchablePicker />
    </View>
  );
};

export default App;