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v-virtual-scroller

v1.2.2

Published

virtualScroll component with vue2

Downloads

7

Readme

v-virtual-scroller

基于vue的虚拟滚动组件

特性

  • 支持横向、纵向、横纵使用三种虚拟滚动方式。
  • 支持不同长度的元素。

用法

  1. 安装插件

    npm i v-virtual-scroller
  2. 使用

注册为全局组件

import virtualScroller from 'v-virtual-scroller';
Vue.use(virtualScroller,'g'); //第二个参数为组件名前缀,选填。

或者按需引用

import {virtualScroller,virtualScrollerTable} from 'v-virtual-scroller';

export default {
    name: 'App',
    components: { virtualScroller,virtualScrollerTable },
}

virtual-scroller

单向虚拟滚动组件

基本用法

<template>
<virtual-scroller :items="items" v-slot="{ index, size, active }">
                <div>{{ index }}{{ size }} {{ active }}</div>
  </virtual-scroller>
</tempalte>
<script>
export default {
    data() {
        return {
            items: [20, 20, 20, 20, 20],
        };
    },
};
</script>

组件props参数

| 参数 | 说明 | 类型 | 是否必填 | 可选值 | 默认值 | | --------- | -------------------------- | ------ | -------- | ----------------------- | ---------- | | items | 元素长度集合(以px为单位) | array | 是 | | | | direction | 虚拟滚动方向 | string | 否 | vertical,horizontal | vertical |

元素slot参数

| 参数 | 说明 | 类型 | | ------ | ---------------- | ------- | | size | 元素的长度 | number | | index | 元素在集合的位置 | number | | active | 元素激活状态 | Boolean |

组件事件

| 参数 | 说明 | 回调参数 | | ------ | -------------- | -------- | | scroll | 列表滚动时触发 | 偏移值 | | | | |

virtual-scroller-table

同时支持横向纵向的虚拟滚动组件

基本用法

<template>
    <virtual-scroller-table
                            :cols="cols"
                            :rows="rows"
                            v-slot="{ rowIndex, colIndex, active }"
                            >
        <div>{{ colIndex }}{{ colIndex }} {{ active }}</div>
    </virtual-scroller-table>
</tempalte>
<script>
export default {
    data() {
        return {
            rows: [20, 20, 20, 20, 20],
            cols: [20, 20, 20, 20, 20]
        };
    },
};
</script>

组件props参数

| 参数 | 说明 | 类型 | 是否必填 | 可选值 | 默认值 | 举例 | | ---- | ---------------------------- | ----- | -------- | ------ | ------ | ---------------- | | rows | 元素行长度集合(以px为单位) | array | 是 | | | [20,20,20,20,20] | | cols | 元素列长度集合(以px为单位) | array | 是 | | | [20,20,20,20,20] | | | | | | | | | | | | | | | | |

元素slot参数

| 参数 | 说明 | 类型 | | -------- | ------------------ | ------- | | rowIndex | 元素在行集合的位置 | number | | colIndex | 元素在列集合的位置 | number | | height | 元素高度 | number | | width | 元素宽度 | number | | active | 元素激活状态 | Boolean |

组件事件

| 参数 | 说明 | 回调参数 | | ------ | -------------- | --------------------------------------- | | scroll | 列表滚动时触发 | left :横向偏移值, top:纵向偏移值 | | | | |

参考

再谈前端虚拟列表的实现

无尽滚动的复杂度 -- 来自 Google 大神的拆解