做了一个类似于阿里云弹性计算中的滑块效果,可以自由滑动滑块,并且计算刻度。基于jQuery实现,小伙伴们不要忘记载入jquery哦
CSS
.main { margin: 0 auto; margin-top: 100px; width: 500px; font-family: 微软雅黑; -webkit-user-select: none; } .contain { width: 500px; height: 40px; background-color: #E8E8E8; } .track { width: 16px; height: 46px; position: absolute; margin: -3px 0 0 0px; background-color: #2dacd1; cursor: pointer; } .valueC { height: 40px; position: absolute; margin: 0; background-color: #43BFE3; } .value span { position: absolute; text-align: right; height: 40px; line-height: 40px; color: #808080; border-right: 1px solid #dddddd; } .show { width: 45px; height: 30px; background-color: #333; color: #fff; text-align: center; line-height: 30px; position: absolute; opacity: 0.9; margin-top: -38px; margin-left: -15px; }
HTML
<div class="main"> <div class="contain"> <div class="show">0</div> <div class="valueC"></div> <div class="value"> </div> <div class="track"></div> </div> </div>
JS
<script type="text/javascript" src="/js/jquery-1.8.0.min.js"></script> <script type="text/javascript"> $(function(){ScrollerTrack.Init();}); var ScrollerTrack={ BodyWidth:500, MaxValue:300, CurrentX:0, CurrentValue:0, Count:0, Init:function(){ var mWidth=ScrollerTrack.BodyWidth; $(".contain").css("width",mWidth+"px"); var count=ScrollerTrack.MaxValue/50; ScrollerTrack.Count=count; var itemWidth=mWidth/count; for(var i=0;i<count;i++){ var span=$("<span>"+(i+1)*50+"</span>"); $(span).css("width",itemWidth+"px").css("margin-left",i*itemWidth+"px"); $(".value").append(span); } ScrollerTrack.Value(); }, Value:function(){ var currentValue; var isMoving=false; ScrollerTrack.CurrentX=$(".track").offset().left; $(".track").mousedown(function() { var target=$(this).parent(); isMoving=true; $("html,body").mousemove(function(event) { if(isMoving==false)return; var changeX = event.clientX - ScrollerTrack.CurrentX; currentValue = changeX - ScrollerTrack.CurrentX; if(changeX<=0){ $(target).find(".track").css("margin-left", "0px"); $(target).find(".valueC").css("width", "0px"); $(target).find(".show").css("margin-left", "-15px"); $(target).find(".show").html(0); ScrollerTrack.CurrentValue=0; } else if(changeX>=ScrollerTrack.BodyWidth-16){ $(target).find(".track").css("margin-left", ScrollerTrack.BodyWidth-16+"px"); $(target).find(".valueC").css("width",ScrollerTrack.BodyWidth-16+"px"); $(target).find(".show").css("margin-left", ScrollerTrack.BodyWidth-31+"px"); $(target).find(".show").html(ScrollerTrack.MaxValue); ScrollerTrack.CurrentValue=ScrollerTrack.MaxValue; } else{ $(target).find(".track").css("margin-left", changeX+"px"); $(target).find(".valueC").css("width", changeX+"px"); $(target).find(".show").css("margin-left", changeX-15+"px"); var v=ScrollerTrack.MaxValue*((changeX+16)/ScrollerTrack.BodyWidth); $(target).find(".show").html(parseInt(v)); ScrollerTrack.CurrentValue=parseInt(v); } }); }); $("html,body").mouseup(function() { isMoving=false; }); } } </script>
演示图:
演示地址:http://demo.jb51.net/js/2015/jquery-txhk/
另外推荐一款范围选择器插件jRange,它是基于jQuery的一款简单插件。下面我们来看下插件jRange的使用。
HTML
首先载入jQuery库文件以及jRange相关的css文件:jquery.range.css和插件:jquery.range.js
<script src="jquery.js"></script> <link rel="stylesheet" href="jquery.range.css"> <script src="jquery.range.js"></script>
然后在需要展示滑块选择器的位置放入以下代码:
<input type="hidden" class="slider-input" value="23" />
我们使用了hiiden类型的文本域,设置默认值value,如23。
jQuery
调用jRange插件非常简单,直接用下面的代码:
$('.single-slider').jRange({ from: 0, to: 100, step: 1, scale: [0,25,50,75,100], format: '%s', width: 300, showLabels: true, showScale: true });
更多信息请参阅jRange项目官网:https://github.com/nitinhayaran/jRange