React Native -如何使用过滤器删除列表

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

const App = () => {
  const [data, setData] = useState([
    { id: '1', title: 'Apple' },
    { id: '2', title: 'Banana' },
    { id: '3', title: 'Cherry' },
    // ...更多数据
  ]);
  const [filteredData, setFilteredData] = useState(data);
  const [searchText, setSearchText] = useState('');

  const filterList = (text) => {
    const newData = data.filter(item => {
      const itemTitle = item.title ? item.title.toUpperCase() : ''.toUpperCase();
      const textData = text.toUpperCase();
      return itemTitle.indexOf(textData) > -1;
    });
    setFilteredData(newData);
    setSearchText(text);
  };

  return (
    <View style={styles.container}>
      <TextInput
        style={styles.searchBar}
        placeholder="Search..."
        onChangeText={(text) => filterList(text)}
        value={searchText}
      />
      <FlatList
        data={filteredData}
        keyExtractor={(item) => item.id}
        renderItem={({ item }) => (
          <View style={styles.item}>
            <Text style={styles.title}>{item.title}</Text>
          </View>
        )}
      />
    </View>
  );
};

const styles = StyleSheet.create({
  container: {
    flex: 1,
    padding: 20,
  },
  searchBar: {
    height: 40,
    borderColor: 'gray',
    borderWidth: 1,
    marginBottom: 10,
    paddingHorizontal: 10,
  },
  item: {
    padding: 10,
    borderBottomWidth: 1,
    borderBottomColor: '#ccc',
  },
  title: {
    fontSize: 18,
  },
});

export default App;