Ios 为什么ReactionNativeVisionCamera不能与闪光灯一起使用

我有一个简单的 react native 应用程序(Android)，并试图在闪光灯打开的情况下拍照. 如果将闪光灯设置为"关闭"，效果会非常好，但当我将闪光灯设置为"打开"时，闪光灯就会打开，但没有人拍照，因为它总是超时:

拍摄照片时出错:[capture/timed-out:[capture/timed-out]图像捕获因超时而中止.]

我使用的是react 式本地视觉摄像机.它既不能在我的物理设备上运行，也不能在模拟设备上运行.

我就是不知道问题出在哪.

以下是代码:

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

import {Camera, useCameraDevice, useCameraPermission, useCameraFormat} from 'react-native-vision-camera';


function CameraScreen(){
    const camera = useRef(null);
    const device = useCameraDevice('back');

    // Handle requesting permissions ...

    const takePhoto = async () => {
        let noCameraAvailable = !camera.current;
        if (noCameraAvailable) {
            console.log("No camera available");
            return;
        }
        try {
            const photo = await camera.current.takePhoto({
                // Flash turns on but no photo is taken due to timeout, 
                // if off however it works
                flash: 'on', 
            });
            console.log("Photo: ", photo);
        } catch (error) {
            console.error("Error taking photo: ", error);
        }
    }

    return (
        <View style={styles.cameraLayoutContainer}>
            <Camera
            style={styles.childrenContainer}
                device={device}
                isActive={true}
                ref={camera}
                photo={true}
            />
            <Button title="Take photo" onPress={takePhoto} />
        </View>
        
    );
}

const styles = {
    cameraLayoutContainer: {
        flex: 1,
        justifyContent: 'center',
        alignItems: 'center',
    },
    childrenContainer: {
        position: 'absolute',
        width: '100%',
        height: '100%',
    },
}

export default CameraScreen;