Sticky-js 自定义元素悬浮固定位置

Question

Sticky-js 是一个用普通 javascript 编写的 Sticky 元素库。有了这个库，你可以很容易地在你的网站上设置粘性元素。它也很灵敏。

特点

• Written in vanilla javascript, no dependencies needed
• Lightweight (minified: ~6.08kb, gzipped: ~1.67kb)
• It can be sticky to the entire page or to selected parent container
• No additional CSS needed

安装

npm install sticky-js
bower install sticky.js

使用方法

引入插件文件

<script src="sticky.min.js"></script>

编写 HTML 代码

<div class="selector">Sticky element</div>

初始化插件

var sticky = new Sticky('.selector');

CommonJS 方式

var Sticky = require('sticky-js');
var sticky = new Sticky('.selector');

通过 [data-sticky-container] 属性将元素固定到指定位置

<div data-sticky-container>
    <div class="selector">Sticky element</div>
</div>

完整示例

多个元素通过 data-sticky-container 属性设置固定位置

<div class="row" data-sticky-container>
  <div class="medium-2 columns">
    <img src="http://placehold.it/250x250" class="sticky" data-margin-top="20" data-sticky-for="1023" data-sticky-class="is-sticky">
  </div>
  <div class="medium-8 columns">
    <h1>Sticky-js</h1>
    <p>Lorem ipsum.....</p>
  </div>
  <div class="medium-2 columns">
    <img src="http://placehold.it/250x250" class="sticky" data-margin-top="20" data-sticky-for="1023" data-sticky-class="is-sticky">
  </div>
</div>

<script src="sticky.min.js"></script>
<script>
  var sticky = new Sticky('.sticky');
</script>

方法函数

更新位置，例如父级元素 data-sticky-container 改变了高度

var sticky = new Sticky('.sticky');
// and when parent change height..
sticky.update();

销毁固定元素的设置

var sticky = new Sticky('.sticky');
sticky.destroy();

可选参数

Option	Type	Default	Description
data-sticky-wrap	boolean	false	When it's true sticky element is wrapped in <span></span> which has sticky element dimensions. Prevents content from "jumping".
data-margin-top	number	0	Margin between page and sticky element when scrolled
data-sticky-for	number	0	Breakpoint which when is bigger than viewport width, sticky is activated and when is smaller, then sticky is destroyed
data-sticky-class	string	null	Class added to sticky element when it is stuck

相关链接

• github 地址：https://github.com/rgalus/sticky-js
• 在线示例：https://rgalus.github.io/sticky-js/