轻量级滚动动画 JavaScript 库 aos


一、简介

aos.js是一款效果超赞的页面滚动的 JavaScript 动画库插件。该动画库可以在页面滚动时提供28种不同的元素动画效果,以及多种easing效果。在页面往回滚动时,元素会恢复到原来的状态。

AOS

注:从2.0.0版本之后,只支持使用data-aos属性,不再支持使用aos属性。

二、安装

1. Bower 安装

你可以使用 Bower 包管理工具安装aos

bower install aos --save  

2. npm

你也能在 npm 上找到 aos

npm install aos --save  

3. Github 下载

Github 下载点击此处

三、使用示例

1. 使用方法

引入CSS样式文件:

<link rel="stylesheet" href="bower_components/aos/dist/aos.css" />  

添加js脚本文件:

<script src="bower_components/aos/dist/aos.js"></script>  

初始化载入AOS:

<script>  
    AOS.init();
</script>  

2. 简单示例

body {  
    font-family: Helvetica,Tahoma;
}

*,
*:before,
*:after {
    box-sizing: border-box;
}

.aos-all {
    width: 1000px;
    max-width: 98%;
    margin: 10vh auto 0 auto;
}

.aos-item {
    display: inline-block;
    float: left;
    width: 33.3333%;
    height: 300px;
    padding: 20px;
}

.aos-item__inner {
    position: relative;
    width: 100%;
    height: 100%;
    background: #1da4e2;
    line-height: 260px;
    text-align: center;
    color: #fff;
}

@media screen and (max-width: 800px) {
    .aos-item {
        width: 50%;
    }
}
<!DOCTYPE html>  
<html lang="en">  
<head>  
    <meta charset="UTF-8">
    <title>AOS的简单示例</title>
    <meta name="viewport" content="width=device-width">
    <link type="text/css" rel="stylesheet" href="aos/aos.css" />
    <link type="text/css" rel="stylesheet" href="aos_test.css" />
</head>  
<body onload="initLoad();">

    <div id="transcroller" class="aos-all">
        <div class="aos-item" data-aos="fade-up">
            <div class="aos-item__inner"><h3>1</h3></div>
        </div>
        <div class="aos-item" data-aos="fade-down">
            <div class="aos-item__inner"><h3>2</h3></div>
        </div>
        <div class="aos-item" data-aos="zoom-out-down">
            <div class="aos-item__inner"><h3>3</h3></div>
        </div>
        <div class="aos-item" data-aos="flip-down">
            <div class="aos-item__inner"><h3>4</h3></div>
        </div>
        <div class="aos-item" data-aos="flip-up">
            <div class="aos-item__inner"><h3>5</h3></div>
        </div>
        <div class="aos-item" data-aos="fade-down">
            <div class="aos-item__inner"><h3>6</h3></div>
        </div>
        <div class="aos-item" data-aos="fade-in">
            <div class="aos-item__inner"><h3>7</h3></div>
        </div>
        <div class="aos-item" data-aos="fade-down">
            <div class="aos-item__inner"><h3>8</h3></div>
        </div>
        <div class="aos-item" data-aos="fade-in">
            <div class="aos-item__inner"><h3>9</h3></div>
        </div>
        <div class="aos-item" data-aos="fade-down">
            <div class="aos-item__inner"><h3>10</h3></div>
        </div>
        <div class="aos-item" data-aos="fade-up">
            <div class="aos-item__inner"><h3>11</h3></div>
        </div>
        <div class="aos-item" data-aos="fade-down">
            <div class="aos-item__inner"><h3>12</h3></div>
        </div>
        <div class="aos-item" data-aos="fade-in">
            <div class="aos-item__inner"><h3>13</h3></div>
        </div>
        <div class="aos-item" data-aos="fade-up">
            <div class="aos-item__inner"><h3>14</h3></div>
        </div>
        <div class="aos-item" data-aos="fade-in">
            <div class="aos-item__inner"><h3>15</h3></div>
        </div>
        <div class="aos-item" data-aos="fade-up">
            <div class="aos-item__inner"><h3>16</h3></div>
        </div>
        <div class="aos-item" data-aos="fade-down">
            <div class="aos-item__inner"><h3>17</h3></div>
        </div>
        <div class="aos-item" data-aos="fade-up">
            <div class="aos-item__inner"><h3>18</h3></div>
        </div>
        <div class="aos-item" data-aos="zoom-out">
            <div class="aos-item__inner"><h3>19</h3></div>
        </div>
        <div class="aos-item" data-aos="fade-up">
            <div class="aos-item__inner"><h3>20</h3></div>
        </div>
        <div class="aos-item" data-aos="zoom-out">
            <div class="aos-item__inner"><h3>21</h3></div>
        </div>
        <div class="aos-item" data-aos="fade-in">
            <div class="aos-item__inner"><h3>22</h3></div>
        </div>
        <div class="aos-item" data-aos="zoom-out-up">
            <div class="aos-item__inner"><h3>23</h3></div>
        </div>
        <div class="aos-item" data-aos="zoom-out-down">
            <div class="aos-item__inner"><h3>24</h3></div>
        </div>
        <div class="aos-item" data-aos="fade-in">
            <div class="aos-item__inner"><h3>25</h3></div>
        </div>
        <div class="aos-item" data-aos="fade-in">
            <div class="aos-item__inner"><h3>26</h3></div>
        </div>
        <div class="aos-item" data-aos="fade-in">
            <div class="aos-item__inner"><h3>27</h3></div>
        </div>
        <div class="aos-item" data-aos="fade-in">
            <div class="aos-item__inner"><h3>28</h3></div>
        </div>
        <div class="aos-item" data-aos="fade-in">
            <div class="aos-item__inner"><h3>29</h3></div>
        </div>
        <div class="aos-item" data-aos="fade-in">
            <div class="aos-item__inner"><h3>30</h3></div>
        </div>
        <div class="aos-item" data-aos="fade-in">
            <div class="aos-item__inner"><h3>31</h3></div>
        </div>
        <div class="aos-item" data-aos="fade-in">
            <div class="aos-item__inner"><h3>32</h3></div>
        </div>
        <div class="aos-item" data-aos="fade-in">
            <div class="aos-item__inner"><h3>33</h3></div>
        </div>
        <div class="aos-item" data-aos="fade-in">
            <div class="aos-item__inner"><h3>34</h3></div>
        </div>
        <div class="aos-item" data-aos="fade-in">
            <div class="aos-item__inner"><h3>35</h3></div>
        </div>
        <div class="aos-item" data-aos="fade-in">
            <div class="aos-item__inner"><h3>36</h3></div>
        </div>
        <div class="aos-item" data-aos="fade-in">
            <div class="aos-item__inner"><h3>37</h3></div>
        </div>
        <div class="aos-item" data-aos="fade-in">
            <div class="aos-item__inner"><h3>38</h3></div>
        </div>
        <div class="aos-item" data-aos="fade-in">
            <div class="aos-item__inner"><h3>39</h3></div>
        </div>
        <div class="aos-item" data-aos="fade-in">
            <div class="aos-item__inner"><h3>40</h3></div>
        </div>
        <div class="aos-item" data-aos="fade-in">
            <div class="aos-item__inner"><h3>41</h3></div>
        </div>
        <div class="aos-item" data-aos="fade-in">
            <div class="aos-item__inner"><h3>42</h3></div>
        </div>
    </div>

<script type="text/javascript" src="aos/aos.js"></script>  
<script type="text/javascript">  
    function initLoad() {
        AOS.init();
    }
</script>  
</body>  
</html>  

3. 异步示例

<!DOCTYPE html>  
<html lang="en">  
<head>  
    <meta charset="UTF-8">
    <title>AOS 异步使用的示例</title>
    <meta name="viewport" content="width=device-width">
    <link type="text/css" rel="stylesheet" href="aos.css" />
    <link type="text/css" rel="stylesheet" href="aos_test.css" />
</head>  
<body onload="initLoad();">

    <div id="aos_async" class="aos-all"></div>

<script type="text/javascript" src="aos.js"></script>  
<script type="text/javascript">  
    function initLoad() {
        AOS.init();
    }

    // 0.5秒执行一次
    setInterval(addItem, 500);

    var itemsCounter = 1;
    var container = document.getElementById('aos_async');

    /**
     * 动态生成的div元素
     */
    function addItem () {
        if (itemsCounter > 42) return;
        var item = document.createElement('div');
        item.classList.add('aos-item');
        item.setAttribute('data-aos', 'fade-up');
        item.innerHTML = '<div class="aos-item__inner"><h3>' + itemsCounter + '</h3></div>';
        container.appendChild(item);
        itemsCounter++;
    }
</script>  
</body>  
</html>  

四、动画样式

以下是AOS已经提供了的多种动画:

1. Fade animations:

  • fade-up
  • fade-down
  • fade-left
  • fade-right
  • fade-up-right
  • fade-up-left
  • fade-down-right
  • fade-down-left

2. Flip animations:

  • flip-up
  • flip-down
  • flip-left
  • flip-right

3. Slide animations:

  • slide-up
  • slide-down
  • slide-left
  • slide-right

4. Zoom animations:

  • zoom-in
  • zoom-in-up
  • zoom-in-down
  • zoom-in-left
  • zoom-in-right
  • zoom-out
  • zoom-out-up
  • zoom-out-down
  • zoom-out-left
  • zoom-out-right

5. Anchor placement:

  • top-bottom
  • top-center
  • top-top
  • center-bottom
  • center-center
  • center-top
  • bottom-bottom
  • bottom-center
  • bottom-top

五、Easing 函数

你可以选择以下任意一个时间函数来做出很好的做动画元素:

  • linear
  • ease
  • ease-in
  • ease-out
  • ease-in-out
  • ease-in-back
  • ease-out-back
  • ease-in-out-back
  • ease-in-sine
  • ease-out-sine
  • ease-in-out-sine
  • ease-in-quad
  • ease-out-quad
  • ease-in-out-quad
  • ease-in-cubic
  • ease-out-cubic
  • ease-in-out-cubic
  • ease-in-quart
  • ease-out-quart
  • ease-in-out-quart


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