@szmg-fe/tarco/usePreviewImg.ts

function library in Taro

import { useCallback } from "react";
import Taro from '@tarojs/taro';

/**
 * 
 * @param urls string[]
 * @returns 返回预览urls的函数
 */
export default function usePreviewImg(urls: string[], current?: string) {

    return useCallback(() => {
        // 预览内容
        urls.length && Taro.previewImage({
            urls,
            current
        });
    }, [urls]);
}