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本文实例讲述了jQuery实现的上拉刷新功能组件。分享给大家供大家参考，具体如下：
技术要点：
1、jQuery的插件写法
2、上拉刷新步骤分解
3、css样式
jQuery的插件写法：
$.fn.pluginName = function() {
return this.each(function () {
fn();
})
};
上拉刷新步骤分解：
上拉刷新可以分解成三个部分：一是开始（start），记录当前鼠标的位置；二是移动（move），根据下拉的位移响应不同的视图；三是结束（end），刷新页面。
;!function ($) {
"use strict";
var PTR = function (ele) {
this.container = $(ele);
this.container.addClass('pull-to-refresh');
this.distance = 60; // 设置参考的下拉位移
this.attachEvent();
};
// 判断是否有touch事件发生
var isTouch = (function () {
var isSupportTouch = !!'ontouchstart' in document || window.documentTouch;
return isSupportTouch;
})();
var touchEvents = {
start: isTouch "htmlcode">
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<link rel="stylesheet" href="pull-to-refresh.css" rel="external nofollow" >
<style>
p {
margin-top: 0;
}
</style>
</head>
<body>
<div class="pull-to-refresh_layer">
<div class="pull-to-refresh-arrow">↓</div>
<div class="pull-to-refresh-preloader"></div>
<div class="down">下拉刷新</div>
<div class="up">释放刷新</div>
<div class="refresh">正在刷新</div>
</div>
<div>
<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Accusamus amet aperiam, architecto at aut
beatae dignissimos eaque est ex fugi
at incidunt inventore natus nemo nostru
m omnis quos repellat ut voluptas!
</p>
<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Accusamus amet aperiam, architecto at aut
beatae dignissimos eaque est ex fugi
at incidunt inventore natus nemo nostru
m omnis quos repellat ut voluptas!
</p>
<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Accusamus amet aperiam, architecto at aut
beatae dignissimos eaque est ex fugi
at incidunt inventore natus nemo nostru
m omnis quos repellat ut voluptas!
</p>
<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Accusamus amet aperiam, architecto at aut
beatae dignissimos eaque est ex fugi
at incidunt inventore natus nemo nostru
m omnis quos repellat ut voluptas!
</p>
<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Accusamus amet aperiam, architecto at aut
beatae dignissimos eaque est ex fugi
at incidunt inventore natus nemo nostru
m omnis quos repellat ut voluptas!
</p>
<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Accusamus amet aperiam, architecto at aut
beatae dignissimos eaque est ex fugi
at incidunt inventore natus nemo nostru
m omnis quos repellat ut voluptas!
</p>
<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Accusamus amet aperiam, architecto at aut
beatae dignissimos eaque est ex fugi
at incidunt inventore natus nemo nostru
m omnis quos repellat ut voluptas!
</p>
<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Accusamus amet aperiam, architecto at aut
beatae dignissimos eaque est ex fugi
at incidunt inventore natus nemo nostru
m omnis quos repellat ut voluptas!
</p>
</div>
<script src="/UploadFiles/2021-04-02/jquery-1.8.3.min.js">
CSS代码如下：
.pull-to-refresh {
margin-top: -50px;
transition: transform .4s;
}
.pull-to-refresh .pull-to-refresh-preloader,
.pull-to-refresh .up,
.pull-to-refresh .refresh {
display: none;
}
.pull-to-refresh.refreshing {
transform: translate3d(0,50px,0);
}
.refreshing .pull-to-refresh-arrow,
.refreshing .down,
.refreshing .up {
display: none;
}
.refreshing .refresh,
.refreshing .pull-to-refresh-preloader {
display: inline-block;
}
.pull-to-refresh_layer {
height: 30px;
line-height: 30px;
padding-bottom: 10px;
}
.pull-down .pull-to-refresh_layer .up,
.pull-down .pull-to-refresh_layer .refresh {
display: none;
}
.pull-down .pull-to-refresh_layer .down{
display: inline-block;
}
.pull-up .pull-to-refresh_layer .up{
display: inline-block;
}
.pull-up .pull-to-refresh_layer .down,
.pull-up .pull-to-refresh_layer .refresh {
display: none;
}
.pull-up .pull-to-refresh-arrow {
transform: rotate(180deg) translate3d(0, 0, 0);
}
.pull-to-refresh-arrow {
display: inline-block;
z-index: 10;
margin-right: 4px;
transition-duration: 300ms;
transform: rotate(0deg) translate3d(0, 0, 0);
}
.pull-to-refresh_layer {
display: inline-block;
}
.pull-to-refresh-preloader {
display: inline-block;
}
.pull-down {
}
.pull-up {
}
.down {
display: inline-block;
}
.up {
display: inline-block;
}
.refresh {
display: inline-block;
}
感兴趣的朋友可以使用在线HTML/CSS/JavaScript代码运行工具 http://tools.jb51.net/code/HtmlJsRun 测试上述代码运行效果。
更多关于jQuery相关内容感兴趣的读者可查看本站专题：《jQuery页面元素操作技巧汇总》、《jQuery常见事件用法与技巧总结》、《jQuery常用插件及用法总结》、《jQuery扩展技巧总结》及《jquery选择器用法总结》
希望本文所述对大家jQuery程序设计有所帮助。
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富贵资源网 Design By www.hznty.com
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