React Native - useRef在RNCamera上提供空值

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

const MyCamera = () => {
  const cameraRef = useRef(null);

  const takePicture = async () => {
    if (cameraRef.current) {
      const options = { quality: 0.5, base64: true };
      const data = await cameraRef.current.takePictureAsync(options);
      console.log(data.uri);
    }
  };

  return (
    <RNCamera
      ref={cameraRef}
      style={{ flex: 1 }}
      type={RNCamera.Constants.Type.back}
      flashMode={RNCamera.Constants.FlashMode.auto}
    >
      {/* 在这里添加其他组件或功能 */}
    </RNCamera>
  );
};

export default MyCamera;