使用Hooks从函数中进行React Native Post调用

import React, { useState, useEffect } from 'react';
import { View, Button } from 'react-native';

const MyComponent = () => {
  const [data, setData] = useState(null);

  useEffect(() => {
    fetchData();
  }, []);

  const fetchData = async () => {
    try {
      const response = await fetch('https://api.example.com/post', {
        method: 'POST',
        headers: {
          'Content-Type': 'application/json',
        },
        body: JSON.stringify({ key: 'value' }),
      });
      const json = await response.json();
      setData(json);
    } catch (error) {
      console.error(error);
    }
  };

  return (
    <View>
      <Button title="Fetch Data" onPress={fetchData} />
      {data && <Text>{data.message}</Text>}
    </View>
  );
};

export default MyComponent;