我正在使用反应打字稿。当我在滑动滑块组件上设置
thumbs={{ swiper: thumbsSwiper }}Uncaught (in promise) TypeError: Cannot read properties of undefined (reading 'addClass')const [thumbsSwiper, setThumbsSwiper] = useState<any>(null); // Thumbs state
<div key={product._id} className='lg:w-1/2'>
<Swiper
loop={true}
spaceBetween={10}
thumbs={{ swiper: thumbsSwiper }} // PRoblem is Here
modules={[FreeMode, Navigation, Thumbs]}
className="mySwiper2"
>
{product?.images.map(({ src }: { src: string }) => {
return <SwiperSlide style={{ height: '500px', width: '300px' }}>
<img src={src} alt={product?.title} />
</SwiperSlide>
})}
</Swiper>
<Swiper
onSwiper={setThumbsSwiper}
loop={true}
spaceBetween={10}
slidesPerView={4}
freeMode={true}
watchSlidesProgress={true}
modules={[FreeMode, Navigation, Thumbs]}
className="mySwiper mt-4"
>
{product?.images.map(({ src }: { src: string }) => {
return <SwiperSlide style={{ height: '100px', width: '100px' }} >
<img src={src} alt={product?.title} />
</SwiperSlide>
})}
</Swiper>
</div>
这是我的完整代码：
import React, { useEffect, useState } from 'react';
import { useParams } from 'react-router-dom';
import RelatedProducts from '../RelatedProducts/RelatedProducts';
import { Swiper, SwiperSlide } from "swiper/react";
import { FreeMode, Navigation, Thumbs } from "swiper";
import Magnifier from "react-magnifier";
const SingleProduct = () => {
const { id } = useParams();
const [productsDetails, setProductsDetails] = useState<any>([])
const [isLoading, setIsLoading] = useState<boolean>(false)
useEffect(() => {
setIsLoading(true)
fetch(`https://guarded-ocean-73313.herokuapp.com/products`)
.then(res => res.json())
.then((data) => {
console.log(data, 'data')
const product = data.filter(detail => detail._id === id)
setProductsDetails(product);
}).finally(() => setIsLoading(false))
}, [id])
useEffect(() => {
if (!productsDetails.length) {
<h2>Loading</h2>
}
}, [productsDetails.length])
const [thumbsSwiper, setThumbsSwiper] = useState<any>(null);
return (
<div>
<section className="text-gray-700 body-font overflow-hidden bg-white">
<div className="container px-5 py-10 mx-auto">
<div className="lg:w-4/5 mx-auto flex ">
{isLoading ? "Loading" :
productsDetails.map(product => {
return <>
<div key={product._id} className='lg:w-1/2'>
<Swiper
loop={true}
spaceBetween={10}
thumbs={{ swiper: thumbsSwiper }}
modules={[FreeMode, Navigation, Thumbs]}
className="mySwiper2"
>
{product?.images.map(({ src }: { src: string }) => {
return <SwiperSlide style={{ height: '500px', width: '300px' }}>
<img src={src} alt={product?.title} />
</SwiperSlide>
})}
</Swiper>
<Swiper
onSwiper={setThumbsSwiper}
loop={true}
spaceBetween={10}
slidesPerView={4}
freeMode={true}
watchSlidesProgress={true}
modules={[FreeMode, Navigation, Thumbs]}
className="mySwiper mt-4"
>
{product?.images.map(({ src }: { src: string }) => {
return <SwiperSlide style={{ height: '100px', width: '100px' }} >
<img src={src} alt={product?.title} />
</SwiperSlide>
})}
</Swiper>
</div>
<div className="lg:w-1/2 w-full lg:pl-10 lg:py-6 mt-6 lg:mt-0">
<div>
<h2 className="text-sm title-font text-gray-500 tracking-widest">Brand: <b>{product.brand}</b></h2>
<h1 className="text-gray-900 text-3xl title-font font-medium mb-1">{product.title}</h1>
<div className="flex mb-4">
<span className="flex items-center">
<svg fill="currentColor" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" strokeWidth="2" className="w-4 h-4 text-red-500" viewBox="0 0 24 24">
<path d="M12 2l3.09 6.26L22 9.27l-5 4.87 1.18 6.88L12 17.77l-6.18 3.25L7 14.14 2 9.27l6.91-1.01L12 2z"></path>
</svg>
<svg fill="currentColor" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" strokeWidth="2" className="w-4 h-4 text-red-500" viewBox="0 0 24 24">
<path d="M12 2l3.09 6.26L22 9.27l-5 4.87 1.18 6.88L12 17.77l-6.18 3.25L7 14.14 2 9.27l6.91-1.01L12 2z"></path>
</svg>
<svg fill="currentColor" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" strokeWidth="2" className="w-4 h-4 text-red-500" viewBox="0 0 24 24">
<path d="M12 2l3.09 6.26L22 9.27l-5 4.87 1.18 6.88L12 17.77l-6.18 3.25L7 14.14 2 9.27l6.91-1.01L12 2z"></path>
</svg>
<svg fill="currentColor" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" strokeWidth="2" className="w-4 h-4 text-red-500" viewBox="0 0 24 24">
<path d="M12 2l3.09 6.26L22 9.27l-5 4.87 1.18 6.88L12 17.77l-6.18 3.25L7 14.14 2 9.27l6.91-1.01L12 2z"></path>
</svg>
<svg fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" strokeWidth="2" className="w-4 h-4 text-red-500" viewBox="0 0 24 24">
<path d="M12 2l3.09 6.26L22 9.27l-5 4.87 1.18 6.88L12 17.77l-6.18 3.25L7 14.14 2 9.27l6.91-1.01L12 2z"></path>
</svg>
<span className="text-gray-600 ml-3">4 Reviews</span>
</span>
<span className="flex ml-3 pl-3 py-2 border-l-2 border-gray-200">
<a className="text-gray-500">
<svg fill="currentColor" stroke-linecap="round" stroke-linejoin="round" strokeWidth="2" className="w-5 h-5" viewBox="0 0 24 24">
<path d="M18 2h-3a5 5 0 00-5 5v3H7v4h3v8h4v-8h3l1-4h-4V7a1 1 0 011-1h3z"></path>
</svg>
</a>
<a className="ml-2 text-gray-500">
<svg fill="currentColor" stroke-linecap="round" stroke-linejoin="round" strokeWidth="2" className="w-5 h-5" viewBox="0 0 24 24">
<path d="M23 3a10.9 10.9 0 01-3.14 1.53 4.48 4.48 0 00-7.86 3v1A10.66 10.66 0 013 4s-4 9 5 13a11.64 11.64 0 01-7 2c9 5 20 0 20-11.5a4.5 4.5 0 00-.08-.83A7.72 7.72 0 0023 3z"></path>
</svg>
</a>
<a className="ml-2 text-gray-500">
<svg fill="currentColor" stroke-linecap="round" stroke-linejoin="round" strokeWidth="2" className="w-5 h-5" viewBox="0 0 24 24">
<path d="M21 11.5a8.38 8.38 0 01-.9 3.8 8.5 8.5 0 01-7.6 4.7 8.38 8.38 0 01-3.8-.9L3 21l1.9-5.7a8.38 8.38 0 01-.9-3.8 8.5 8.5 0 014.7-7.6 8.38 8.38 0 013.8-.9h.5a8.48 8.48 0 018 8v.5z"></path>
</svg>
</a>
</span>
</div>
<p className="leading-relaxed"
dangerouslySetInnerHTML={({ __html: product.product_des })}></p>
<div className="flex py-4 space-x-4">
</div>
<div className="flex mt-6 items-center pb-5 border-b-2 border-gray-200 mb-5">
{/* <div className="flex">
<span className="mr-3">Color</span>
<button className="border-2 border-gray-300 rounded-full w-6 h-6 focus:outline-none"></button>
<button className="border-2 border-gray-300 ml-1 bg-gray-700 rounded-full w-6 h-6 focus:outline-none"></button>
<button className="border-2 border-gray-300 ml-1 bg-red-500 rounded-full w-6 h-6 focus:outline-none"></button>
</div> */}
<div className="relative mr-4 mt-3">
<div className="text-center left-0 pt-2 right-0 absolute block text-xs uppercase text-gray-400 tracking-wide font-semibold">Qty</div>
<select className="cursor-pointer appearance-none rounded-xl border border-gray-200 pl-4 pr-8 h-14 flex items-end pb-1">
<option>1</option>
<option>2</option>
<option>3</option>
<option>4</option>
<option>5</option>
</select>
</div>
{product?.attributes.map(attr => {
return <div className=" mr-6 items-center">
<span className="mr-3"><b>{attr.label}</b></span><br />
<div className="relative">
<select className="rounded appearance-none border border-gray-200 py-2 focus:outline-none focus:border-indigo-500 text-base pl-3 pr-10">
{attr?.selected.map(select => {
return <option>{select.label}</option>
})}
</select>
<span className="absolute right-0 top-0 h-full w-10 text-center text-gray-600 pointer-events-none flex items-center justify-center">
<svg fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" strokeWidth="2" className="w-4 h-4" viewBox="0 0 24 24">
<path d="M6 9l6 6 6-6"></path>
</svg>
</span>
</div>
</div>
})}
</div>
<span className="title-font font-sm text-gray-900">Category: <b>{product.categories[0].label}</b></span>
<div className="flex mt-4">
<div className="inline-block align-bottom mr-5">
<span className="text-2xl leading-none align-baseline">$</span>
<span className="font-bold text-5xl leading-none align-baseline">{product.sale_price ? product.sale_price : product.reg_price} </span>
<span className="text-2xl leading-none align-baseline">.00</span>
</div>
<div className="inline-block align-bottom mr-5 mt-5 line-through">
<span className="text-2xl leading-none align-baseline">$</span>
<span className="font-bold text-2xl leading-none align-baseline">{product.sale_price ? product.reg_price : ''} </span>
<span className="text-2xl leading-none align-baseline">.00</span>
</div>
{/* <span className="title-font font-medium text-2xl text-gray-900">${product.price | 0} <span className='line-through text-gray-500'>{product?.sale_price}</span>
</span> */}
<button className="flex ml-auto text-white bg-indigo-500 border-0 py-2 px-6 focus:outline-none hover:bg-indigo-600 rounded items-center">Add to cart</button>
<button className="rounded-full w-10 h-10 bg-gray-200 p-0 border-0 inline-flex items-center justify-center text-gray-500 ml-4">
<svg fill="currentColor" stroke-linecap="round" stroke-linejoin="round" strokeWidth="2" className="w-5 h-5" viewBox="0 0 24 24">
<path d="M20.84 4.61a5.5 5.5 0 00-7.78 0L12 5.67l-1.06-1.06a5.5 5.5 0 00-7.78 7.78l1.06 1.06L12 21.23l7.78-7.78 1.06-1.06a5.5 5.5 0 000-7.78z"></path>
</svg>
</button>
</div>
</div>
</div></>
})
}
</div>
</div>
<div className='bg-slate-300 mb-10 mt-10 shadow'>
<h2 className='text-2xl text-center py-3'>Related Products</h2>
</div>
<RelatedProducts />
</section >
</div >
)
};
export default SingleProduct;
如果您在模态中打开
SwipersetThumbsSwiperconst onCloseModal = () => {
setThumbsSwiper(null)
}
我是这样解决的。我首先验证我的图像属性上是否有任何可用图像，如果有图像，则渲染 swiperSlide 它解决了我的问题。
{
product.images ? <Swiper
loop={true}
spaceBetween={10}
thumbs={{ swiper: thumbsSwiper }}
modules={[FreeMode, Navigation, Thumbs]}
className="mySwiper2"
>
{product?.images.map(({ src }: { src: string }) => {
return <SwiperSlide style={{ height: '500px', width: '300px' }}>
<img src={src} alt={product?.title} />
</SwiperSlide>
})}
</Swiper> : 'No img'
}
React 不允许将 className 传递给 swiper 组件，但有两种方法可以实现此目的
此解决方案之一肯定适合您。
对我来说这解决了问题
thumbs={{swiper: thumbsSwiper && !thumbsSwiper.destroyed ? thumbsSwiper : null}}
对我来说，我清理了 useEffect 上的拇指滑动器
useEffect(()=>{
return ()=>{
setThumbSwiper(null)
}
},[])