从Ref获取React-Native元素的高度

import React, { useRef } from 'react';
import { View } from 'react-native';

const MyComponent = () => {
  const myRef = useRef(null);

  return (
    <View ref={myRef}>
      {/* 元素内容 */}
    </View>
  );
};

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

const MyComponent = () => {
  const myRef = useRef(null);

  const handleGetHeight = () => {
    myRef.current.measure((x, y, width, height, pageX, pageY) => {
      console.log('元素高度：', height);
    });
  };

  return (
    <View>
      <View ref={myRef}>
        {/* 元素内容 */}
      </View>
      <Button title="获取高度" onPress={handleGetHeight} />
    </View>
  );
};