HTML5+JavaScript实现进度条效果

本文介绍了HTML5的<meter>标签用于创建进度条,并通过JavaScript操纵DOM动态改变进度条的值,实现进度逐渐增加的效果。利用window.onload确保页面加载完成后执行,结合setInterval设置定时器来定时更新进度条状态。

H5新标签之进度条:

<meter></meter>标签是进度条标签,[max]和[min]属性设置其最大值和最小值,[optimum]属性设置最佳状态,[value]属性设置当前值,[low]属性和[high]设置进度条情景状态(让进度条随着进度变化呈现出不同的效果)。

实现的逻辑:使用JavaScript操纵DOM,让meter进度条间隔若干秒进度增加若干,直到加满为止。

拓展说明:

window.onload()函数是窗体加载函数,当窗体加载完毕时执行该函数

setInterval([函数],[时间间隔])就是一个计时器,它表示隔多

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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