Home >Web Front-end >JS Tutorial >Jquery implements elastic slider sliding selection value plug-in_jquery
Made a slider effect similar to that in Alibaba Cloud Elastic Computing. You can slide the slider freely and calculate the scale. Based on jQuery, friends, don’t forget to load jquery
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>
Demo picture:
Demo address: http://demo.jb51.net/js/2015/jquery-txhk/
We also recommend a range selector plug-in called jRange, which is a simple plug-in based on jQuery. Let's take a look at the use of the plug-in jRange.
HTML
First load the jQuery library file and jRange-related css files: jquery.range.css and plug-in: jquery.range.js
<script src="jquery.js"></script> <link rel="stylesheet" href="jquery.range.css"> <script src="jquery.range.js"></script>
Then put the following code where you need to display the slider selector:
<input type="hidden" class="slider-input" value="23" />
We used a hiiden type text field and set the default value, such as 23.
jQuery
Calling the jRange plug-in is very simple, just use the following code:
$('.single-slider').jRange({ from: 0, to: 100, step: 1, scale: [0,25,50,75,100], format: '%s', width: 300, showLabels: true, showScale: true });
For more information, please refer to the jRange project official website: https://github.com/nitinhayaran/jRange