jQuery实现点击水纹波动动画

内容摘要
jQuery点击水纹波动动画原理:


1.在需要实现水波纹效果的标签中添加<XXX class="ripple-wrapper"></XXX>

2.代码会定位 鼠标相对 与 标签的位置，以鼠标点为圆心画
文章正文

jQuery点击水纹波动动画原理:

    1.在需要实现水波纹效果的标签中添加<XXX class="ripple-wrapper"></XXX>
    2.代码会定位 鼠标相对 与 标签的位置，以鼠标点为圆心画圆
    3.圆的半径 可以自定义(默认为标签的最大宽或高度)
    4.圆点颜色，和动画时间等可以自行修改内部代码，或直接 调用 $().css({})方法 进行覆盖

ripple-wrapper.js

$(function(){
  $(".ripple-wrapper").css(
    {
  "position": " absolute",
  "top": " 0",
  "left": " 0",
  "z-index": " 1",
  "width": " 100%",
  "height": " 100%",
  "overflow": " hidden",
  "border-radius": " inherit",
  "pointer-events": " none"
  });
    $(".ripple-wrapper").parent().click(function(e){
     var ripple_obj=$(this).find(".ripple-wrapper");
     if(ripple_obj.find("div").length){ripple_obj.find("div").remove();}
     ripple_obj.prepend("<div></div>");
     var ripple_div=ripple_obj.find("div");
     ripple_div.css(
       {
  "display": " block",
  "background": " rgba(255, 255, 255, 0.7)",
  "border-radius": " 50%",
  "position": " absolute",
  "-webkit-transform": " scale(0)",
  "transform": " scale(0)",
  "opacity": " 1",
  "transition": " all 0.7s",
  "-webkit-transition": " all 0.7s",
  "-moz-transition": " all 0.7s",
  "-o-transition": " all 0.7s",
  "z-index": " 1",
  "overflow": " hidden",
  "pointer-events": " none"
    });
     var R= parseInt(ripple_obj.outerWidth());/*默认半径为ripple-wrapper宽*/
     if(parseInt(ripple_obj.outerWidth())<parseInt(ripple_obj.outerHeight())){
         R= parseInt(ripple_obj.outerHeight());/*如果高度大于宽半径为ripp，le-wrapper高*/
     }
      ripple_div.css({"width":(R*2)+"px","height":(R*2)+"px","top": (e.pageY -ripple_obj.offset().top - R)+'px', "left": ( e.pageX -ripple_obj.offset().left -R)+'px',"transform":"scale(1)", "-webkit-transform":"scale(1)","opacity":"0"});;
    }); 
    
    });

HTML

<!DOCTYPE html>
<html>
 
<head>
  <meta charset="UTF-8">
  <title>Document</title>
  <script type="text/javascript" src="http://ajax.aspnetcdn.com/ajax/jQuery/jquery-2.1.4.min.js"></script>
  <script src="ripple-wrapper.js"></script> 
  <style>
    .ck {
      cursor: pointer;
      display: block;
      padding: 1em;
      text-decoration: none;
      width: 200px;
      height: 20px;
      position: relative;
      overflow: hidden; 
      color: #fff;
    }
  </style>
</head>
 
<body >
  <div class="ck" style="background: #5f5f5f">
    点一下
    <div class="ripple-wrapper"></div>
  </div> 
</body>
 
</html>

演示图

未封装代码

<!DOCTYPE html>
<html>
 
<head>
  <meta charset="UTF-8">
  <title>Document</title>
  <script type="text/javascript" src="http://ajax.aspnetcdn.com/ajax/jQuery/jquery-2.1.4.min.js"></script>
  <style>
    .ck {
      background: #ffab91;
   
      display: block;
      padding: 1em;
      text-decoration: none;
      width: 200px;
      height: 20px;
      position: relative;
      overflow: hidden;
    }
     
    .ck .bd {
      background: rgba(0, 0, 0,0.8);
      border-radius: 50%;
      width: 0px;
      height: 0px;
      position: absolute;
       -webkit-transform: scale(0);
       transform: scale(0);
       opacity: 1;
    }
     
    .dh {
      animation: ldm 0.8s ;
      -moz-animation: ldm 0.8s ;
      -o-animation: ldm 0.8s ;
      -webkit-animation: ldm 0.8s  ;
    }
     
    @-webkit-keyframes ldm {
      100% {
        -webkit-transform: scale(1);
        opacity: 0
      }
    }
     
    @keyframes ldm {
       100% {
        -webkit-transform: scale(1);
        opacity: 0
      }
    }
  </style>
</head>
 
<body style=" background: #aaab91;">
  <div class="ck">
    <span class="bd"></span> adasdsd
  </div>
  <script>
    $(".ck").click(function(e){
       $(this).find(".bd").removeClass("dh");
      var R=6;
      R= parseInt($(this).outerWidth());
      if(parseInt($(this).outerWidth())<parseInt($(this).outerHeight())){
        R= parseInt($(this).outerHeight());
      }
      $(this).find(".bd").css({"width":(R*2)+"px","height":(R*2)+"px"});
    $(this).find(".bd").css({"left":(e.pageX-$(this).position().left-R)+"px","top":(e.pageY-$(this).position().top-R)+"px" });
    // $(this).find(".bd").css({"left":(e.pageX-$(this).position().left-R/2 )+"px","top":(e.pageY-$(this).position().top-R/2 )+"px" });
    $(this).find(".bd").addClass("dh");
    });
  </script>
</body>
 
</html>

代码注释
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