利用jQuery的animate() 方法,我们很容易实现滚动条的平滑滚动效果:

$(function() {
$('#top').click(
function (e) {
$('html, body').animate({scrollTop: '0px'}, 1000);
return false;
}
);
});

  

在线示例:利用jQuery实现的返回顶部

最近在做基于zeptoJS手机网页开发,遇到类似需求,实践之后发现zeptoJS并不像Jquery一样支持scrollTop()方法,

所以,即使引入使zeptoJS支持The animate()方法的 fx.js 之后,依然无法实现平滑滚动效果。

GOOGLE了一下发现,原来并不是我一人遇到这种问题,Stack Overflow早已有大量相关讨论:

以上讨论给出了很多解决方案,目前我采用了下面这种:

 ZeptoScroll  插件

 GitHub地址:https://github.com/suprMax/ZeptoScroll

 官网地址:http://max.degterev.me/blog/zepto-scrolling

 zepto.scroll.js

/* Author:
Max Degterev @suprMax
*/ ;(function($) {
var DEFAULTS = {
endY: $.os.android ? 1 : 0,
duration: 200,
updateRate: 15
}; var interpolate = function (source, target, shift) {
return (source + (target - source) * shift);
}; var easing = function (pos) {
return (-Math.cos(pos * Math.PI) / 2) + .5;
}; var scroll = function(settings) {
var options = $.extend({}, DEFAULTS, settings); if (options.duration === 0) {
window.scrollTo(0, options.endY);
if (typeof options.callback === 'function') options.callback();
return;
} var startY = window.pageYOffset,
startT = Date.now(),
finishT = startT + options.duration; var animate = function() {
var now = Date.now(),
shift = (now > finishT) ? 1 : (now - startT) / options.duration; window.scrollTo(0, interpolate(startY, options.endY, easing(shift))); if (now < finishT) {
setTimeout(animate, options.updateRate);
}
else {
if (typeof options.callback === 'function') options.callback();
}
}; animate();
}; var scrollNode = function(settings) {
var options = $.extend({}, DEFAULTS, settings); if (options.duration === 0) {
this.scrollTop = options.endY;
if (typeof options.callback === 'function') options.callback();
return;
} var startY = this.scrollTop,
startT = Date.now(),
finishT = startT + options.duration,
_this = this; var animate = function() {
var now = Date.now(),
shift = (now > finishT) ? 1 : (now - startT) / options.duration; _this.scrollTop = interpolate(startY, options.endY, easing(shift)); if (now < finishT) {
setTimeout(animate, options.updateRate);
}
else {
if (typeof options.callback === 'function') options.callback();
}
}; animate();
}; $.scrollTo = scroll; $.fn.scrollTo = function() {
if (this.length) {
var args = arguments;
this.forEach(function(elem, index) {
scrollNode.apply(elem, args);
});
}
};
}(Zepto));

  

DEMO:

<!DOCTYPE HTML>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"> <title>ZeptoScroll</title>
<style type="text/css"> #main{
font: normal 13px/1.4em Helvetica, Arial, sans-serif;
width: 96%;
padding: 2%;
max-width: 320px;
margin: 0 auto;
background-color: #f5f5f5;
color:#666;
} #top {
display: inline-block;
padding: 6px 0;
color: #fff;
width: 100%;
cursor: pointer;
text-align: center;
border-radius: 3px;
background-color: #00bb9c;
text-decoration: none;
}
</style>
</head>
<body>
<div id="main">
<h1>Add some gold.</h1>
<p>Look what I'm dealing with, man. I'm dealing with fools and trolls. I'm dealing with soft targets, and it's just strafing runs in my underwear before my first cup of coffee … they lay down with their ugly wives and their ugly children and just look at their loser lives and then they look at me and say, 'I can't process it.' Well, no, and you never will! Stop trying! Just sit back and enjoy the show.</p> <p>I am on a drug. It's called Charlie Sheen. It's not available. If you try it once, you will die. Your face will melt off and your children will weep over your exploded body.</p> <p>It's being directed and written by a genius named David Ward who, I don't know, won the Academy Award at 23 for writing The Sting?
It was his pen and his vision that created the classic that we know today as Major League. In fact,
a lot of people think the movie's called Wild Thing, as they should. Whatever … If they want me in it, it's a smash. If they don't, it's a turd that opens on a tugboat.</p> <p>I tried marriage. I'm 0 for 3 with the marriage thing. So, being a ballplayer — I believe in numbers. I'm not going 0 for 4. I'm not wearing a golden sombrero.</p>
<p>Look what I'm dealing with, man. I'm dealing with fools and trolls.
I'm dealing with soft targets, and it's just strafing runs in my underwear before my first cup of coffee …
they lay down with their ugly wives and their ugly children and just look at their loser lives and then they look at me and say, 'I can't process it.' Well, no, and you never will! Stop trying! Just sit back and enjoy the show.</p> <p>I am on a drug. It's called Charlie Sheen. It's not available. If you try it once, you will die. Your face will melt off and your children will weep over your exploded body.</p> <a id="top" href="javascript:void(0);">To the top, please!</a>
</div> <script src="http://libs.baidu.com/zepto/0.8/zepto.min.js"></script>
<script src="static/zepto.scroll.js"></script>
<script type="text/javascript">
$('#top').on('click', function(e) {
$.scrollTo({
endY: 0,
duration: 200,
callback: function() {
alert('at the top');
}
});
});
</script>
</body>
</html>

  

zeptoJS:如何像jQuery一样,让滚动变得优雅?的更多相关文章

  1. jQuery全能图片滚动插件

    插件开发背景 随着前端开发领域越来越受到重视,前端开发也变得越来越火热.各种优秀的前端组件层出不穷.尤其是jQuery插件,很多前端组件都是基于jQuery开开发的. 图片滚动是前端开发中可以说是非常 ...

  2. 精心挑选10款优秀的 jQuery 图片左右滚动插件

    在现代的网页设计中,图片和内容滑块是一种极为常见和重要的元素.你可以从头开始编写自己的滑动效果,但是这将浪费很多时间,因为网络上已经有众多的优秀的 jQuery 滑块插件.当然,如果要从大量的 jQu ...

  3. 【jQuery】scroll 滚动到顶部

    Jquery 实现页面滚动到顶端 $(document).ready(function () { // 滚动窗口来判断按钮显示或隐藏 $(window).scroll(function () { // ...

  4. jQuery BreakingNews 间歇滚动

    BreakingNews 是一款基于jQuery的间歇滚动插件.它可以设置标题.标题颜色.标题背景颜色.链接颜色.字体大小.边框.宽度.自动滚动.间歇时间等等,同时它还好提供两种过度方式--淡入淡出( ...

  5. Infinite Scroll - jQuery & WP 无限滚动插件

    无限滚动(Infinite Scroll)也称为自动分页.滚动分页和无限分页.常用在图片.文章或其它列表形式的网页中,用来在滚动网页的时候自动加载下一页的内容.Infinite Scroll  这款  ...

  6. jQuery图片无缝滚动JS代码ul/li结构

    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/ ...

  7. jquery文字左右滚动

    实现jquery文字左右滚动 <div class="fl">中奖名单:</div> <div class="scrollText" ...

  8. jQuery图片无缝滚动

    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/ ...

  9. jQuery.hhLRSlider 左右滚动图片插件

    /**  * jQuery.hhLRSlider 左右滚动图片插件  * User: huanhuan  * QQ: 651471385  * Email: th.wanghuan@gmail.com ...

随机推荐

  1. javascript实现silverlight pivotViewer控件

    一时无事,就用js实现了一个silverlight pivotViewer控件来练手. 实现效果: silverlight PivotViewer说明地址:https://msdn.microsoft ...

  2. ArcMap - 使用python更新列中的值

    概述:在外文网上,很多人都问在ArcMap中如何通过SQL修改属性字段的值,我见回答的人都说通过"Field Calculator",貌似不能直接通过SQL语句. 虽然学gis开发 ...

  3. nexus 的使用及maven的配置

    一.nexus的安装 1.下载nexus(点解这里) 2.下载后解压文件,将解压后的nexus文件放在你自己想要的地方 3.配置环境变量(和配置java的环境变量一样) 4.安装和启动nexus 由于 ...

  4. C# LINQ 基本操作实例

    using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.T ...

  5. C++中类成员使用前需要初始化的重要性

    今天写程序的时候,创建了一个结构体: struct BufferObj { char* buf; int bufLen; SOCKADDR_STORAGE addr; int addrLen; str ...

  6. JSTL与EL之间的千丝万缕

    一.关于JSTL和EL: 什么是JSTL? JSTL( JSP Standard Tag Library)是JSP标准 标签库,由apache实现. 什么是EL? EL(Expression Lang ...

  7. vim学习心得(一)——Cygwin下vim配置

    关于Vi有很多传说.其中最为著名的是: “Vi是编辑器之神,Emacs是神的编辑器” Emacs没有用过,但是Vi在Linux经常使用,所以,掌握好vi非常重要!!! Vim(Vi Improved) ...

  8. eclipse  sae上传代码

    eclipse  sae上传代码http://www.sinacloud.com/doc/sae/java/tools.html#eclipse 来自为知笔记(Wiz)

  9. python查看模块及相关函数帮助

    Question: 如何查看正则表达式模块re及其相关函数的意义 1.终端命令行下 python >> import re >> help(re) Help on module ...

  10. iOS开发——C篇&结构体与枚举

    一:结构体与枚举的介绍: 结构体与枚举:是一种存储复杂的数据结构体:是用户自定义的一种类型,不同类型的集合,而数组是相同类型变量的集合. 二:结构体的创建 struct user {     char ...