flatlist

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

const App = () => {
  const [data, setData] = useState(Array.from({ length: 100 }, (_, i) => ({ id: i.toString(), title: `Item ${i}` })));

  const renderItem = ({ item }) => (
    <View style={styles.item}>
      <Text>{item.title}</Text>
    </View>
  );

  return (
    <FlatList
      data={data}
      renderItem={renderItem}
      keyExtractor={(item) => item.id}
      onEndReached={() => console.log('Load more')}
      onEndReachedThreshold={0.5}
      ListFooterComponent={() => <Text>Loading...</Text>}
    />
  );
};

const styles = StyleSheet.create({
  item: {
    backgroundColor: '#f9c2ff',
    padding: 20,
    marginVertical: 8,
    marginHorizontal: 16,
  },
});

export default App;

getItemLayout={(data, index) => (
  {length: ITEM_HEIGHT, offset: ITEM_HEIGHT * index, index}
)}