npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

react-mtfscrolllist

v1.0.3

Published

React Virtualized infinite scrolling list 虚拟化无限滚动 下拉刷新列表

Downloads

9

Readme

react-mtfScrollList

npm npm bundle size (version) npm
MTF滚动列表插件,支持虚拟化无限滚动,上拉到顶,下拉到底加载更多,下拉刷新。可在原生JS、React和Vue(未来)中使用。

无限滚动

无限滚动.gif

特点

  1. 移动端 + PC
  2. 虚拟化,只渲染可视区域 + 根据滚动方向预先渲染
  3. 列表每一项高度任意,内容自适应
  4. 双向快速滚动,几乎无闪屏,平滑无感
  5. 双向缓存栈 + 文档碎片,复用多,渲染少,速度快
  6. 双向加载更多,上拉到顶 或 下拉到底,读取新数据

下拉刷新

下拉刷新.gif

特点

  1. 移动端 + PC
  2. 根据下拉距离,决定是否继续下拉,是否加载数据

快速开始

本插件打包采用umd模块化规范

一 原生JS

1.1 安装

1.1.1 NodeJS

安装

npm i mtfscrolllist -D

引入

import MtfScrollList from 'mtfscrolllist'
const mtfScrollList = new MtfScrollList()

1.1.2 浏览器

引入

<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/mtfscrolllist.min.js"></script>

1.2 使用

<style>
.scrolllist {
  height: 360px;
  overflow: auto;
}
</style>
<div id="scrolllist" class="scrolllist"></div>
<script>
const data = [{id:1, text:'a'}, {id:2, img:'2.jpg'}]
const mtfScrollList = new MtfScrollList()
mtfScrollList.init({
  ele: document.getElementById('scrolllist'), // 容器
  data: data, // 初始数据,默认为空
  startIndex: 6, // 起始索引,默认是 初始数据的长度。如果容器初始HTML不为空,推荐指定起始索引
  perPage: 6, // 每页条数,默认是 5。如果容器初始HTML不为空,推荐指定每页条数
  render ({ data, index }) { // 渲染列表的每一项
    const d = document.createElement('div')
    d.setAttribute('index', index)
    d.id = 'id' + index
    d.innerHTML = data.text
    return d
  },
  onTop ({ cb, page }) { // 上拉到顶,加载更多:回调函数,当前页数
    setTimeout(() => {
      cb(data)
    }, 1500) // 模拟获取数据
  },
  onBottom ({ cb, page }) { // 下拉到底,加载更多:回调函数,当前页数
    setTimeout(() => {
      cb(data)
    }, 0)
  },
  onPullDownStart ({ startY }) {// 下拉刷新:刚开始下拉。可获得起始Y坐标
    let d = document.getElementById('tip')
    removeChild(d)
    d = document.createElement('div')
    d.className = 'tip'
    d.innerHTML = '下拉刷新'
    d.id = 'tip'
    document.body.appendChild(d)
  },
  onPullDownMove ({ paddingTop }) {// 下拉刷新:拖动下拉。可获得下拉距离
    const d = document.getElementById('tip')
    if (paddingTop < 50) d.innerHTML = '您已下拉' + paddingTop
    else if (paddingTop > 100) return true // 返回true,阻止继续下拉
    else d.innerHTML = '松开刷新'
    d.style.marginTop = (paddingTop >> 1) + 'px'
  },
  onPullDownEnd ({ paddingTop, cb }) {// 下拉刷新:结束下拉。可获得下拉距离,将数据传入回调函数
    const d = document.getElementById('tip')
    if (paddingTop >= 50) { // 到达指定下拉距离,开始获取数据
      d.innerHTML = '开始为您刷新'
      setTimeout(() => {
        removeChild(d)
        cb(data)
      }, 1500)
    } else { // 没有到到指定下拉距离,自动回弹
      removeChild(d)
    }
  }
})
</script>

二 React

安装

npm i mtfscrolllist -D
npm i react-mtfscrolllist -D

引入

import ReactMtfScrollList from 'react-mtfscrolllist'

使用

.scrolllist {
  height: 360px;
  overflow: auto;
}
<ReactMtfScrollList 
  className="scrolllist"
  data={this.state.data || []} // 可绑定props或state
  perPage={6}
  render={({data, index}) => <div key={index}/>{data}</div>}/> // 渲染列表每一项,支持传入React组件
  onTop={cb => {}}
  onBottom={cb => {}} 
  onPullDownStart={startY => {}} 
  onPullDownMove={paddingTop => {}} 
  onPullDownEnd={(paddingTop, cb) => {}}
></ReactMtfScrollList>

示例

原生JS

React