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常用的网页加载进度条

  • 时间:2019-12-29 12:00 编辑:青柠小助手 来源:计算机/互联网 阅读:18573
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摘要:常用的网页加载进度条

标签:html   改变   content   ext   nsf   each   隐藏   ram   meta   

下面有三种方式,看自己需求:

一、顶部进度条

在html代码中间插入jq代码  执行动画。页面加载到哪部分,进度条就会相应的向前走多少

当全部加载完成后将loading进度条模块隐藏

 1 <!DOCTYPE html>
 2 <html lang="en">
 3 <head>
 4     <meta charset="UTF-8">
 5     <meta name="viewport" content="width=device-width, initial-scale=1.0">
 6     <meta http-equiv="X-UA-Compatible" content="ie=edge">
 7     <script src="jquery.min.js"></script>
 8     <title>顶部进度条</title>
 9     <style>
10         .loading {position: fixed;top: 0;left: 0; width: 100%; height: 100%; background-color: #fff;}
11         .pic {width: 0;height: 10px;background-color: #c33;border-radius: 5px;}
12     </style>
13 </head>
14 <body>
15     <div class="loading">
16         <div class="pic"></div>
17     </div>
18     <header>
19         <img src="http://file02.16sucai.com/d/file/2015/0128/8b0f093a8edea9f7e7458406f19098af.jpg" alt="">
20         <img src="http://img12.3lian.com/gaoqing02/02/93/37.jpg" alt="">
21     </header>
22     <script>
23         $(".loading .pic").animate({width: "20%"},100);
24     </script>
25     <section>
26         <img src="http://g.hiphotos.baidu.com/zhidao/pic/item/c83d70cf3bc79f3d6e7bf85db8a1cd11738b29c0.jpg" alt="">
27         <img src="http://big5.wallcoo.com/photograph/summer_feeling/images/%5Bwallcoo.com%5D_summer_feeling_234217.jpg" alt="">
28     </section>
29     <script>
30         $(".loading .pic").animate({width: "40%"},100);
31     </script>
32     <section>
33         <img src="http://cdn.duitang.com/uploads/item/201409/08/20140908130732_kVXzh.jpeg" alt="">
34         <img src="http://file02.16sucai.com/d/file/2014/1006/e94e4f70870be76a018dff428306c5a3.jpg" alt="">
35     </section>
36     <script>
37         $(".loading .pic").animate({width: "60%"},100);
38     </script>
39     <section>
40         <img src="http://b-ssl.duitang.com/uploads/item/201703/01/20170301163305_sCd8j.gif" alt="">
41     </section>
42     <script>
43         $(".loading .pic").animate({width: "80%"},100);
44     </script>
45     <footer>
46         <img src="http://img.51ztzj.com/upload/image/20130417/201304172007_670x419.jpg" alt="">
47         <img src="http://img0.imgtn.bdimg.com/it/u=1618007397,4183425847&fm=26&gp=0.jpg" alt="">
48     </footer>
49     <script>
50         $(".loading .pic").animate({width: "100%"},100, function() {
51             $(".loading").fadeOut();
52         });
53     </script>
54 </body>
55 </html>

二、直接在页面插入关于加载的动态图,页面加载完再隐藏掉

关于图片可以在这个网站找:https://loading.io/  可以根据自己的需求调样式

技术图片

当然,如果想自己写也可以,下面是博主自己用css3写的一个小动画

技术图片技术图片

代码如下

 1 <!DOCTYPE html>
 2 <html lang="en">
 3 <head>
 4     <meta charset="UTF-8">
 5     <meta name="viewport" content="width=device-width, initial-scale=1.0">
 6     <meta http-equiv="X-UA-Compatible" content="ie=edge">
 7     <title>css3动画进度条</title>
 8     <style>
 9         .loading {position: fixed;top:0;left:0;width: 100%; height: 100%;background-color: #fff;}
10         .pic {position: absolute;top: 0;bottom: 0;left: 0;right: 0;margin: auto;width: 100px;height:40px;}
11         .pic i {float:left;margin: 0 2px;width: 6px;height: 30px;background-color: indigo;transform: scaleY(0.4);animation: load 1.2s infinite;}
12         .pic i:nth-child(2){-webkit-animation-delay: 0.1s;animation-delay: 0.1s;}
13         .pic i:nth-child(3){-webkit-animation-delay: 0.2s;animation-delay: 0.2s;}
14         .pic i:nth-child(4){-webkit-animation-delay: 0.3s;animation-delay: 0.3s;}
15         .pic i:nth-child(5){-webkit-animation-delay: 0.4s;animation-delay: 0.4s;}
16         .pic i:nth-child(6){-webkit-animation-delay: 0.5s;animation-delay: 0.5s;}
17         @-webkit-keyframes load {
18             0%,40%,100%{-webkit-transform: scaleY(0.4); transform: scaleY(0.4)}
19             20%{-webkit-transform: scaleY(1); transform: scaleY(1)}
20         }
21         @keyframes load {
22             0%,40%,100%{-webkit-transform: scaleY(0.4); transform: scaleY(0.4)}
23             20%{-webkit-transform: scaleY(1); transform: scaleY(1)}
24         }
25     </style>
26     <script src="jquery.min.js"></script>
27     <script>
28         document.onreadystatechange = function() {  // 页面状态发生改变时触发
29             if(document.readyState == "complete") {  // 页面加载完成时隐藏
30                 $(".loading").fadeOut();
31             }
32         }
33     </script>
34 </head>
35 <body>
36     <div class="loading">
37         <div class="pic">
38             <i></i>
39             <i></i>
40             <i></i>
41             <i></i>
42             <i></i>
43             <i></i>
44         </div>
45     </div>
46     <img src="http://file02.16sucai.com/d/file/2015/0128/8b0f093a8edea9f7e7458406f19098af.jpg" alt="">
47     <img src="http://img12.3lian.com/gaoqing02/02/93/37.jpg" alt="">
48     <img src="http://g.hiphotos.baidu.com/zhidao/pic/item/c83d70cf3bc79f3d6e7bf85db8a1cd11738b29c0.jpg" alt="">
49     <img src="http://big5.wallcoo.com/photograph/summer_feeling/images/%5Bwallcoo.com%5D_summer_feeling_234217.jpg" alt="">
50     <img src="http://cdn.duitang.com/uploads/item/201409/08/20140908130732_kVXzh.jpeg" alt="">
51     <img src="http://file02.16sucai.com/d/file/2014/1006/e94e4f70870be76a018dff428306c5a3.jpg" alt="">
52     <img src="http://b-ssl.duitang.com/uploads/item/201703/01/20170301163305_sCd8j.gif" alt="">
53     <img src="http://img.51ztzj.com/upload/image/20130417/201304172007_670x419.jpg" alt="">
54     <img src="http://img0.imgtn.bdimg.com/it/u=1618007397,4183425847&fm=26&gp=0.jpg" alt="">
55 </body>
56 </html>

三、实时获取数据的进度条(百分比)

技术图片

代码如下

 1 <!DOCTYPE html>
 2 <html lang="en">
 3 <head>
 4     <meta charset="UTF-8">
 5     <meta name="viewport" content="width=device-width, initial-scale=1.0">
 6     <meta http-equiv="X-UA-Compatible" content="ie=edge">
 7     <title>百分比进度条</title>
 8     <style>
 9         .loading {position: fixed;top:0;left:0;width: 100%; height: 100%;background-color: #fff;}
10         .pic {position: absolute;top: 0;bottom: 0;left: 0;right: 0;margin: auto;width: 100px;height:100px;line-height: 55px;text-align: center;font-size: 22px;}
11         .pic span {display: inline-block;position: absolute;top: 10px;left: 10px;width: 80px;height: 80px;border-radius: 50%;box-shadow: 0 3px 0 #999;
12                 -webkit-animation: move 1s infinite linear;animation: move 1s infinite linear;}
13         @-webkit-keyframes move {
14             0%{-webkit-transform: rotate(0deg);transform: rotate(0deg);}
15             100%{-webkit-transform: rotate(360deg);transform: rotate(360deg);}
16         }
17         @keyframes move {
18             0%{-webkit-transform: rotate(0deg);transform: rotate(0deg);}
19             100%{-webkit-transform: rotate(360deg);transform: rotate(360deg);}
20         }
21     </style>
22     <script src="jquery.min.js"></script>
23     <script>
24         $(function() {
25             var img = $("img"); // 获取所有的img元素
26             var num = 0;  // 用来存储已加载的图片个数
27             img.each(function(i) {  // 遍历所有图片
28                 var oImg = new Image();
29                 oImg.onload = function() { // onload 图片加载完成后执行
30                     num++;
31                     $(".pic p").html(parseInt(num / img.length * 100) + %);
32                     if(num >= img.length) {
33                         $(".loading").fadeOut(); // 页面加载完成后隐藏
34                     }
35                 }
36                 oImg.src = img[i].src;
37             })
38         })
39     </script>
40 </head>
41 <body>
42     <div class="loading">
43         <div class="pic">
44             <span></span>
45             <p>0%</p>
46         </div>
47     </div>
48     <img src="http://file02.16sucai.com/d/file/2015/0128/8b0f093a8edea9f7e7458406f19098af.jpg" alt="">
49     <img src="http://img12.3lian.com/gaoqing02/02/93/37.jpg" alt="">
50     <img src="http://g.hiphotos.baidu.com/zhidao/pic/item/c83d70cf3bc79f3d6e7bf85db8a1cd11738b29c0.jpg" alt="">
51     <img src="http://big5.wallcoo.com/photograph/summer_feeling/images/%5Bwallcoo.com%5D_summer_feeling_234217.jpg" alt="">
52     <img src="http://cdn.duitang.com/uploads/item/201409/08/20140908130732_kVXzh.jpeg" alt="">
53     <img src="http://file02.16sucai.com/d/file/2014/1006/e94e4f70870be76a018dff428306c5a3.jpg" alt="">
54     <img src="http://b-ssl.duitang.com/uploads/item/201703/01/20170301163305_sCd8j.gif" alt="">
55     <img src="http://img.51ztzj.com/upload/image/20130417/201304172007_670x419.jpg" alt="">
56     <img src="http://img0.imgtn.bdimg.com/it/u=1618007397,4183425847&fm=26&gp=0.jpg" alt="">
57 </body>
58 </html>

常用的网页加载进度条

标签:html   改变   content   ext   nsf   each   隐藏   ram   meta   

原文地址:https://www.cnblogs.com/sunyan-blog/p/12109037.html

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