当SectionList完成渲染时更新状态

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

const MyComponent = () => {
  const [isRendered, setIsRendered] = useState(false);

  const sections = [
    { title: 'Section 1', data: ['Item 1', 'Item 2', 'Item 3'] },
    { title: 'Section 2', data: ['Item 4', 'Item 5', 'Item 6'] },
  ];

  const handleLayout = () => {
    setIsRendered(true);
  };

  return (
    <View>
      <SectionList
        sections={sections}
        renderItem={({ item }) => <Text>{item}</Text>}
        renderSectionHeader={({ section }) => <Text>{section.title}</Text>}
        onLayout={handleLayout}
      />
      {isRendered && <Text>SectionList已完成渲染，状态已更新。</Text>}
    </View>
  );
};

export default MyComponent;