importReact, { useRef }from'react';importuseIntersectionObserverfrom'./useIntersectionObserver';constLazyImage= ({ src, alt }) => {constimageRef =useRef(null);constisIntersecting =useIntersectionObserver(imageRef);const[srcLoaded, setSrcLoaded] =useState(null);useEffect(() =>{if(isIntersecting) {s...
React 懒加载图片 Lazy Image,随着网页内容的日益丰富,图片的加载速度直接影响到用户体验。懒加载(LazyLoading)是一种优化技术,通过延迟加载不在视口内的图片,减少初始页面加载时间,提升用户体验。本文将从基础概念入手,逐步深入探讨React中实现图片懒加载的常见问
3.3.2 处理兼容性 import{useState,useEffect,useRef}from'react';importuseIntersectionObserverfrom'./useIntersectionObserver';import'intersection-observer';// 引入 polyfillconstLazyImage=({src,alt})=>{constimageRef=useRef(null);constisIntersecting=useIntersectionObserver(imageRef);const[srcLoaded,setSrcLoaded]...
importReactfrom'react';import{LazyLoadImage,trackWindowScroll}from'react-lazy-load-image-component';constGallery=({ images, scrollPosition})=>({images.map((image)=><LazyLoadImagekey={image.key}alt={image.alt}height={image.height}// Make sure to pass down the scrollPosition,// this will be ...
importReactfrom'react';import{LazyLoadImage}from'react-lazy-load-image-component';import'react-lazy-load-image-component/src/effects/blur.css';constMyImage=({image})=>(<LazyLoadImagealt={image.alt}effect="blur"wrapperProps={{// If you need to, you can tweak the effect transition using the...
this tutorial, Chidi Orji is going to show you how to use theHTMLIntersection ObserverAPI to implement infinite scrolling and image lazy loading in a React functional component. In the process, we’ll learn how to use some of React’s hooks and how to create Custom Hooks. Let’s get ...
In fact, if you checksrc/LazyImage.tsx, you will see thatLazyImageis implemented in terms ofLazyImageFull! Further control over the Intersection Observer can be provided through theobserverPropsprop object: import{LazyImage}from"react-lazy-images";<LazyImagesrc="/img/porto_buildings_large.jpg"...
// 引入 react-lazyimg-component import Lazyimg, {LazyimgWrapper, withLazyimg} from 'react-lazyimg-component'; // 引入 Placeholder import Placeholder from './Placeholder'; // 引入 loading.svg import Loading from './img/loading.svg'; // 使用 withLazyimg 配置 const Lazy = withLazyimg({ ...
javascript react-lazy-load-image-component未按预期工作你需要确保你要么设置高度和宽度 prop 或占位符到...
import React from 'react'; import { LazyLoadImage } from 'react-lazy-load-image-component'; import 'react-lazy-load-image-component/src/effects/blur.css'; const MyImage = ({ image }) => ( <LazyLoadImage alt={image.alt} effect="blur" wrapperProps={{ // If you need to, you can ...