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vue3-virtual-scroll

v0.1.10

Published

<!-- * @Description: * @Version: 2.0 * @Author: Yaowen Liu * @Date: 2021-10-18 16:22:04 * @LastEditors: Yaowen Liu * @LastEditTime: 2022-05-13 11:26:47 -->

Downloads

59

Readme

Vue3 虚拟滚动

vue3 虚拟滚动列表,支持无限滚动加载,丝滑流畅的滚动体验

在线演示地址

安装

npm install vue3-virtual-scroll

使用

import { VirtualScroll } from 'vue3-virtual-scroll'
import 'vue3-virtual-scroll/style.css'
<VirtualScroll :list="list" :height="121" :on-touch-end="onTouchEnd">
  <template #default="{ item }">
    <ProductCard :details="item" />
  </template>
</VirtualScroll>

作用域插槽返回了1个字段: item 原始数据

Props 完整参数

| 参数名 | 类型 | 默认值 | 描述 | | ----------------- | ------- | ----------- | ----------------------------------------------------------------------------------------- | | list | Array | [] | 列表数据 | | grid | Number | 1 | 每一排的数量,默认为1 | | height | Number | 0 | 每一行的高度,该字段为必填 | | rowKey | String | id | 每一行的唯一key,该字段为必填 | | loadingText | String | 加载中,请稍等| 加载时候的文字显示 | | bufferCount | Number | 4 | 上下的缓冲条数,解决滑动过快时白屏bug | | wrapperStyle | Object | {} | 列表包裹容器的样式 | | colSpace | Number | 0 | 列间距 | | rowSpace | Number | 0 | 行间距 | | onTouchEnd | Function| function() {} | 触底回调函数 |

onTouchEnd 使用方法

此处模拟了随机拉取失败的情况,返回的错误信息将在底部展示,点击后会重新拉取。需要注意的是在成功后再将页数 +1,否则失败后的重新拉取会出现页数错乱的情况。

function onTouchEnd() {
  return new Promise((resolve, reject) => {
    getList({ page: pageNum, pageSize: 50 }).then((newList) => {
      if (Math.random() > 0.3) {
        list.value.push(...newList)
        pageNum += 1;
        resolve(true)
      }
      else {
        reject(new Error('加载失败,点击重新拉取数据'))
      }
    })
  })
}

Events

| 事件名称 | 说明 | 回调参数 | | ----------------- | ------- | ----------- | | scroll | 滚动事件 | (startIndex: number, endIndex: number) |

Methods

| 方法名称 | 说明 | 参数 | | ----------------- | ------- | ----------- | | scrollToIndex | 滚动到索引 | (index: number, offset: number) |