JS - Loading
2017-05-12 •
6127浏览 •
代码 •
75字 •
JS
//获取浏览器页面可见高度和宽度
var _PageHeight = document.documentElement.clientHeight;
var _PageWidth = document.documentElement.clientWidth;
//计算loading框距离顶部和左部的距离(loading框的宽度为215px,高度为61px)
//var _LoadingTop = _PageHeight > 61 ? (_PageHeight - 61) / 2 : 0;
//var _LoadingLeft = _PageWidth > 215 ? (_PageWidth - 215) / 2 : 0;
//在页面未加载完毕之前显示的loading Html自定义内容
var _LoadingHtml = '<div id="loadingDiv" style="height:' + _PageHeight + 'px;background:#fff;"><div class="spinner"><div class="spinner-container container1"><div class="circle1"></div><div class="circle2"></div><div class="circle3"></div><div class="circle4"></div></div><div class="spinner-container container2"><div class="circle1"></div><div class="circle2"></div><div class="circle3"></div><div class="circle4"></div></div><div class="spinner-container container3"><div class="circle1"></div><div class="circle2"></div><div class="circle3"></div><div class="circle4"></div></div></div></div>';
//呈现loading效果
document.write(_LoadingHtml);
//监听加载状态改变
document.onreadystatechange = completeLoading;
//加载状态为complete时移除loading效果
function completeLoading() {
if (document.readyState == "complete") {
var loadingMask = document.getElementById('loadingDiv');
//loadingMask.parentNode.removeChild(loadingMask);
setTimeout(function(){loadingMask.parentNode.removeChild(loadingMask)},500);
}
}
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