H5页面标题栏部分加载进度条0%-100%

本文介绍了一种通过HTML、CSS及jQuery实现的网页加载进度条设计方案。该方案利用页面结构特性,通过设置多个加载节点来反馈加载进度,最终实现从0%到100%的加载效果。

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网页进度条能够更好的反应当前网页的加载进度情况,loading进度条可用动画的形式从开始0%到100%完成网页加载这一过程。

首先我们要知道的是,目前没有任何浏览器可以直接获取正在加载对象的大小。所以我们无法通过数据大小来实现0-100%的加载显示过程。

因此我们需要通过html代码逐行加载的特性,在整页代码的若干个跳跃行数中设置节点,进行大概的模糊进度反馈来实现进度加载的效果。大致意思是:页面每加载到指定区域,则返回(n)%的进度结果,通过设置多个节点,来达到一步一步显示加载进度的目的。

假如有一个页面,按区块分为页头、左侧内容、右边侧栏、页脚四部分,我们把这四部分作为四个节点,当页面加载每一个节点后,设置大概加载百分比,页面结构如下:

<divid="header">
页头部分
</div>
<divid="mainpage">
左侧内容
</div>
<divid="sider">
右边侧栏
</div>
<divid="footer">
页脚部分
</div>

然后我们在<body>下的第一行加上进度条.loading。

<div class="loading"></div>

CSS

我们要设置loading进度条的样式,设置背景色,高度,以及位置,优先级等。

.loading{
 background:#FF6100; //设置进度条的颜色
 height:5px;//设置进度条的高度
 position:fixed;//设定进度条跟随屏幕滚动
 top:0;//将进度条固定在页面顶部
 z-index:99999//提高进度条的优先层级,避免被其他层遮挡
}

JQuery

<div id="header">
页头部分</div>
<script type="text/javascript">
 $('.loading').animate({'width':'33%'},50);
 //第一个进度节点
</script>
<div id="mainpage">
左侧内容
</div>
<script type="text/javascript">
 $('.loading').animate({'width':'55%'},50);
//第二个进度节点
</script>
<div id="sider">
右边侧栏
</div>
<script type="text/javascript">
 $('.loading').animate({'width':'80%'},50);
//第三个进度节点
</script>
<div id="footer">
页脚部分
</div>
<script type="text/javascript">
 $('.loading').animate({'width':'100%'},50);
 //第四个进度节点
</script>


可以看出,没加载一个节点后,jQuery调用animate()动画方法实现进度条宽度的变化,每个节点变化以50毫秒时间让进度条看起来更流畅些,最终从0%变化到100%,完成了进度条的进度动画。
当进度条达到100%后,页面加载完成,最后还有一步要做的就是隐藏进度条。

$(document).ready(function(){
 $('.loading').fadeOut(); 
});

实例项目如下:


body { padding: 0; margin: 0 } #unity-container { position: absolute } #unity-container.unity-desktop { left: 50%; top: 50%; transform: translate(-50%, -50%) } #unity-container.unity-mobile { position: fixed; width: 100%; height: 100% } #unity-canvas { background: {{{ BACKGROUND_COLOR }}} } .unity-mobile #unity-canvas { width: 100%; height: 100% } #unity-loading-bar { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); display: none } #unity-logo { width: 500px; height:600px; background: url(''logo.png'') no-repeat center } #unity-progress-bar-empty { width: 141px; height: 18px; margin-top: 10px; margin-left: 6.5px; background: url('progress-bar-empty-{{{ SPLASH_SCREEN_STYLE.toLowerCase() }}}.png') no-repeat center } #unity-progress-bar-full { width: 0%; height: 18px; margin-top: 10px; background: url('progress-bar-full-{{{ SPLASH_SCREEN_STYLE.toLowerCase() }}}.png') no-repeat center } #unity-footer { position: relative } .unity-mobile #unity-footer { display: none } #unity-webgl-logo { float:left; width: 500px; height: 100px; background: url('logo.png') no-repeat center } #unity-build-title { float: right; margin-right: 10px; line-height: 38px; font-family: arial; font-size: 18px } #unity-fullscreen-button { cursor:pointer; float: right; width: 38px; height: 38px; background: url('fullscreen-button.png') no-repeat center } #unity-warning { position: absolute; left: 50%; top: 5%; transform: translate(-50%); background: white; padding: 10px; display: none } 做自适应全屏显示 修改进度条长度和logo图片 进度条自适应 留个修改进度条图片和logo图片的地方
最新发布
08-08
非常精美的h5 进度条 |DEMO_jQuery之家-自由分享jQuery、html5、css3的插件库 <!----> .ClassyCountdownDemo { margin:0 auto 30px auto; max-width:800px; width:calc(100%); padding:30px; display:block } #countdown2 { background:#FFF } #countdown3 { background:rgb(52, 73, 94) } #countdown4 { background:#222 } #countdown5 { background:#222 } #countdown6 { background:#222 } #countdown7 { background:#222 } #countdown8 { background:#222 } #countdown9 { background:#FFF } #countdown10 { background:#3498db } jQuery炫酷图片预览Lightbox插件 A jQuery plugin designed to provide gallery view for images jQuery之家 返回下载页 Example $(document).ready(function() { $('#countdown15').ClassyCountdown({ theme: "flat-colors", end: $.now() + 10000 }); $('#countdown16').ClassyCountdown({ theme: "flat-colors-wide", end: $.now() + 10000 }); $('#countdown17').ClassyCountdown({ theme: "flat-colors-very-wide", end: $.now() + 10000 }); $('#countdown18').ClassyCountdown({ theme: "flat-colors-black", end: $.now() + 10000 }); $('#countdown1').ClassyCountdown({ theme: "white", end: $.now() + 645600 }); $('#countdown5').ClassyCountdown({ theme: "white", end: $.now() + 10000 }); $('#countdown6').ClassyCountdown({ theme: "white-wide", end: $.now() + 10000 }); $('#countdown7').ClassyCountdown({ theme: "white-very-wide", end: $.now() + 10000 }); $('#countdown8').ClassyCountdown({ theme: "white-black", end: $.now() + 10000 }); $('#countdown11').ClassyCountdown({ theme: "black", style: { secondsElement: { gauge: { fgColor: "#F00" } } }, end: $.now() + 10000 }); $('#countdown12').ClassyCountdown({ theme: "black-wide", labels: false, end: $.now() + 10000 }); $('#countdown13').ClassyCountdown({ theme: "black-very-wide", labelsOptions: { lang: { days: 'D', hours: 'H', minutes: 'M', seconds: 'S' }, style: 'font-size:0.5em; text-transform:uppercase;' }, end: $.now() + 10000 }); $('#countdown14').ClassyCountdown({ theme: "black-black", labelsOptions: { style: 'font-size:0.5em; text-transform:uppercase;' }, end: $.now() + 10000 }); $('#countdown4').ClassyCountdown({ end: $.now() + 10000, labels: true, style: { element: "", textResponsive: .5, days: { gauge: { thickness: .03, bgColor: "rgba(255,255,255,0.05)", fgColor: "#1abc9c" }, textCSS: 'font-family:\'Open Sans\'; font-size:25px; font-weight:300; color:#fff;' }, hours: { gauge: { thickness: .03, bgColor: "rgba(255,255,255,0.05)", fgColor: "#2980b9" }, textCSS: 'font-family:\'Open Sans\'; font-size:25px; font-weight:300; color:#fff;' }, minutes: { gauge: { thickness: .03, bgColor: "rgba(255,255,255,0.05)", fgColor: "#8e44ad" }, textCSS: 'font-family:\'Open Sans\'; font-size:25px; font-weight:300; color:#fff;' }, seconds: { gauge: { thickness: .03, bgColor: "rgba(255,255,255,0.05)", fgColor: "#f39c12" }, textCSS: 'font-family:\'Open Sans\'; font-size:25px; font-weight:300; color:#fff;' } }, onEndCallback: function() { console.log("Time out!"); } }); $('#countdown2').ClassyCountdown({ end: '1388468325', now: '1378441323', labels: true, style: { element: "", textResponsive: .5, days: { gauge: { thickness: .01, bgColor: "rgba(0,0,0,0.05)", fgColor: "#1abc9c" }, textCSS: 'font-family:\'Open Sans\'; font-size:25px; font-weight:300; color:#34495e;' }, hours: { gauge: { thickness: .01, bgColor: "rgba(0,0,0,0.05)", fgColor: "#2980b9" }, textCSS: 'font-family:\'Open Sans\'; font-size:25px; font-weight:300; color:#34495e;' }, minutes: { gauge: { thickness: .01, bgColor: "rgba(0,0,0,0.05)", fgColor: "#8e44ad" }, textCSS: 'font-family:\'Open Sans\'; font-size:25px; font-weight:300; color:#34495e;' }, seconds: { gauge: { thickness: .01, bgColor: "rgba(0,0,0,0.05)", fgColor: "#f39c12" }, textCSS: 'font-family:\'Open Sans\'; font-size:25px; font-weight:300; color:#34495e;' } }, onEndCallback: function() { console.log("Time out!"); } }); $('#countdown9').ClassyCountdown({ end: '1388468325', now: '1380501323', labels: true, style: { element: "", textResponsive: .5, days: { gauge: { thickness: .05, bgColor: "rgba(0,0,0,0)", fgColor: "#1abc9c", lineCap: 'round' }, textCSS: 'font-family:\'Open Sans\'; font-size:25px; font-weight:300; color:#34495e;' }, hours: { gauge: { thickness: .05, bgColor: "rgba(0,0,0,0)", fgColor: "#2980b9", lineCap: 'round' }, textCSS: 'font-family:\'Open Sans\'; font-size:25px; font-weight:300; color:#34495e;' }, minutes: { gauge: { thickness: .05, bgColor: "rgba(0,0,0,0)", fgColor: "#8e44ad", lineCap: 'round' }, textCSS: 'font-family:\'Open Sans\'; font-size:25px; font-weight:300; color:#34495e;' }, seconds: { gauge: { thickness: .05, bgColor: "rgba(0,0,0,0)", fgColor: "#f39c12", lineCap: 'round' }, textCSS: 'font-family:\'Open Sans\'; font-size:25px; font-weight:300; color:#34495e;' } }, onEndCallback: function() { console.log("Time out!"); } }); $('#countdown10').ClassyCountdown({ end: '1397468325', now: '1388471324', labels: true, labelsOptions: { lang: { days: 'D', hours: 'H', minutes: 'M', seconds: 'S' }, style: 'font-size:0.5em; text-transform:uppercase;' }, style: { element: "", textResponsive: .5, days: { gauge: { thickness: .02, bgColor: "rgba(255,255,255,0.1)", fgColor: "rgba(255,255,255,1)", lineCap: 'round' }, textCSS: 'font-family:\'Open Sans\'; font-size:25px; font-weight:300; color:rgba(255,255,255,0.7);' }, hours: { gauge: { thickness: .02, bgColor: "rgba(255,255,255,0.1)", fgColor: "rgba(255,255,255,1)", lineCap: 'round' }, textCSS: 'font-family:\'Open Sans\'; font-size:25px; font-weight:300; color:rgba(255,255,255,0.7);' }, minutes: { gauge: { thickness: .02, bgColor: "rgba(255,255,255,0.1)", fgColor: "rgba(255,255,255,1)", lineCap: 'round' }, textCSS: 'font-family:\'Open Sans\'; font-size:25px; font-weight:300; color:rgba(255,255,255,0.7);' }, seconds: { gauge: { thickness: .02, bgColor: "rgba(255,255,255,0.1)", fgColor: "rgba(255,255,255,1)", lineCap: 'round' }, textCSS: 'font-family:\'Open Sans\'; font-size:25px; font-weight:300; color:rgba(255,255,255,0.7);' }, }, onEndCallback: function() { console.log("Time out!"); } }); $('#countdown3').ClassyCountdown({ end: '1390868325', now: '1388461323', labels: true, labelsOptions: { lang: { days: 'Zile', hours: 'Ore', minutes: 'Minute', seconds: 'Secunde' }, style: 'font-size:0.5em; text-transform:uppercase;' }, style: { element: "", textResponsive: .5, days: { gauge: { thickness: .2, bgColor: "rgba(255,255,255,0.2)", fgColor: "rgb(241, 196, 15)" }, textCSS: 'font-family:\'Open Sans\'; font-size:25px; font-weight:300; color:rgba(255,255,255,0.7);' }, hours: { gauge: { thickness: .2, bgColor: "rgba(255,255,255,0.2)", fgColor: "rgb(241, 196, 15)" }, textCSS: 'font-family:\'Open Sans\'; font-size:25px; font-weight:300; color:rgba(255,255,255,0.7);' }, minutes: { gauge: { thickness: .2, bgColor: "rgba(255,255,255,0.2)", fgColor: "rgb(241, 196, 15)" }, textCSS: 'font-family:\'Open Sans\'; font-size:25px; font-weight:300; color:rgba(255,255,255,0.7);' }, seconds: { gauge: { thickness: .2, bgColor: "rgba(255,255,255,0.2)", fgColor: "rgb(241, 196, 15)" }, textCSS: 'font-family:\'Open Sans\'; font-size:25px; font-weight:300; color:rgba(255,255,255,0.7);' } }, onEndCallback: function() { console.log("Time out!"); } }); }); 如果你喜欢这个插件,那么你可能也喜欢: html5+jquery通过鼠标控制的圆形进度条 jQuery和css3旋钮控制按钮-knobKnob
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