前端开发过程中常用的上拉刷新demo，下拉刷新与此原理类似
界面如下（有点丑的demo哈）：
代码如下如示：
<style>
*{
padding: 0;
margin: 0;
}
.box{
height: 100%;
/* overflow: hidden auto; */
}
#refreshContainer{
width: 90%;
margin: 0 auto;
}
ul li{
outline-style: none;
outline: none;
}
#refreshContainer li{
height: 60px;
line-height: 60px;
padding: 0 10px;
background: green;
margin: 10px auto;
list-style:none;
}
</style>
</head>
<body>
<div class="box">
<ul id="refreshContainer">
<li>111</li>
<li>222</li>
<li>333</li>
<li>444</li>
<li>555</li>
<li>111</li>
<li>222</li>
<li>333</li>
<li>444</li>
<li>555</li>
</ul>
<p class="refreshText"></p>
</div>
</body>
<script>
(function(window) {
// 获取当前滚动条的位置
function getScrollTop() {
var scrollTop = 0;
if (document.documentElement && document.documentElement.scrollTop) {
scrollTop = document.documentElement.scrollTop;
} else if (document.body) {
scrollTop = document.body.scrollTop;
}
return scrollTop;
}
// 获取当前可视范围的高度
function getClientHeight() {
var clientHeight = 0;
if (document.body.clientHeight && document.documentElement.clientHeight) {
clientHeight = Math.min(document.body.clientHeight, document.documentElement.clientHeight);
}
else {
clientHeight = Math.max(document.body.clientHeight, document.documentElement.clientHeight);
}
return clientHeight;
}
// 获取文档完整的高度
function getScrollHeight() {
return Math.max(document.body.scrollHeight, document.documentElement.scrollHeight);
}
var _text = document.querySelector('.refreshText'),
_container = document.getElementById('refreshContainer');
// 节流函数
var throttle = function(method, context){
clearTimeout(method.tId);
method.tId = setTimeout(function(){
method.call(context);
}, 300);
}
function fetchData() {
setTimeout(function() {
_container.insertAdjacentHTML('beforeend', '<li>new add...</li>');
}, 1000);
}
window.onscroll = function() {
if (getScrollTop() + getClientHeight() == getScrollHeight()) {
_text.innerText = '加载中...';
throttle(fetchData);
}
};
})(window);
</script>
代码可直接复制
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