Rumah >hujung hadapan web >tutorial js >JS实现瀑布流布局的实例分析

JS实现瀑布流布局的实例分析

黄舟asal: 2017-10-23 09:49:541425semak imbas

本文实例为大家分享了JS实现瀑布流布局展示的具体代码，供大家参考，具体内容如下

html部分

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>瀑布流布局</title>
  <script src="wallpoll.js"></script>
  <link rel="stylesheet" href="wallpoll.css" rel="external nofollow" >
</head>
<body>
  <p id="main">
    <p class="box">
      <p class="pic">
        <img src="wallpoll/0.jpg" alt="">
      </p>
    </p>
    <p class="box">
      <p class="pic">
        <img src="wallpoll/0.jpg" alt="">
      </p>
    </p>
    <p class="box">
      <p class="pic">
        <img src="wallpoll/1.jpg" alt="">
      </p>
    </p>
    <p class="box">
      <p class="pic">
        <img src="wallpoll/2.jpg" alt="">
      </p>
    </p>
    <p class="box">
      <p class="pic">
        <img src="wallpoll/3.jpg" alt="">
      </p>
    </p>
    <p class="box">
      <p class="pic">
        <img src="wallpoll/4.jpg" alt="">
      </p>
    </p>
    <p class="box">
      <p class="pic">
        <img src="wallpoll/5.jpg" alt="">
      </p>
    </p>
    <p class="box">
      <p class="pic">
        <img src="wallpoll/6.jpg" alt="">
      </p>
    </p>
    <p class="box">
      <p class="pic">
        <img src="wallpoll/7.jpg" alt="">
      </p>
    </p>

    <p class="box">
      <p class="pic">
        <img src="wallpoll/8.jpg" alt="">
      </p>
    </p>
    <p class="box">
      <p class="pic">
        <img src="wallpoll/9.jpg" alt="">
      </p>
    </p>
    <p class="box">
      <p class="pic">
        <img src="wallpoll/10.jpg" alt="">
      </p>
    </p>
    <p class="box">
      <p class="pic">
        <img src="wallpoll/11.jpg" alt="">
      </p>
    </p>
    <p class="box">
      <p class="pic">
        <img src="wallpoll/12.jpg" alt="">
      </p>
    </p>
    <p class="box">
      <p class="pic">
        <img src="wallpoll/13.jpg" alt="">
      </p>
    </p>
    <p class="box">
      <p class="pic">
        <img src="wallpoll/14.jpg" alt="">
      </p>
    </p>
    <p class="box">
      <p class="pic">
        <img src="wallpoll/15.jpg" alt="">
      </p>
    </p>
    <p class="box">
      <p class="pic">
        <img src="wallpoll/16.jpg" alt="">
      </p>
    </p>
    <p class="box">
      <p class="pic">
        <img src="wallpoll/17.jpg" alt="">
      </p>
    </p>
    <p class="box">
      <p class="pic">
        <img src="wallpoll/18.jpg" alt="">
      </p>
    </p>
    <p class="box">
      <p class="pic">
        <img src="wallpoll/19.jpg" alt="">
      </p>
    </p>
    <p class="box">
      <p class="pic">
        <img src="wallpoll/20.jpg" alt="">
      </p>
    </p>
    <p class="box">
      <p class="pic">
        <img src="wallpoll/21.jpg" alt="">
      </p>
    </p>
    <p class="box">
      <p class="pic">
        <img src="wallpoll/22.jpg" alt="">
      </p>
    </p>
    <p class="box">
      <p class="pic">
        <img src="wallpoll/23.jpg" alt="">
      </p>
    </p>
    <p class="box">
      <p class="pic">
        <img src="wallpoll/24.jpg" alt="">
      </p>
    </p>
  </p>
</body>
</html>

css部分

*{
  padding:0px;
  margin:0px;
}
.main{
  position:relative;
}
.box{
  padding:15px 0 0 10px;
  float:left;
}
.pic{
  padding:10px;
  border: 1px solid #ccc;
  border-radius: 5px;
  box-shadow: 0 0 5px #ccc;
  /*float:left;*/
}
img{
  width:170px;
  height:auto;
}

JS部分

window.onload=function(){
  waterfall(&#39;main&#39;,&#39;box&#39;);
  var dataInt={"data":[{"src":"0.jpg"},{"src":"1.jpg"},{"src":"2.jpg"},{"src":"3.jpg"},{"src":"4.jpg"}]}
  window.onscroll=function(){
    if(checkScrollSlide){
      for(var i=0;i<dataInt.data.length;i++){
        var oparent=document.getElementById("main");
        var box=document.createElement("p");
        box.className="box";
        oparent.appendChild(box);
        var pic=document.createElement("p");
        pic.className="pic";
        box.appendChild(pic);
        var img=document.createElement("img");
        img.src="wallpoll/"+dataInt.data[i].src;
        pic.appendChild(img);
      }
    }
    waterfall(&#39;main&#39;,&#39;box&#39;);
  }
}
function waterfall(parent,child){
  var oparent=document.getElementById(parent);
  var boxs=oparent.getElementsByClassName(child);
  var boxw=boxs[0].offsetWidth;
  var cols=Math.floor(document.documentElement.clientWidth/boxw);
  oparent.style.cssText="width:"+cols*boxw+"px;margin:0 auto";
  var harr=new Array();
  for(var i=0;i<boxs.length;i++){
    if(i<cols){
      harr.push(boxs[i].offsetHeight);
     }else{
      var minH=Math.min.apply(null,harr);
      var index=getMinhIndex(harr,minH);
      boxs[i].style.position="absolute";
      boxs[i].style.top=minH+"px";
      boxs[i].style.left=boxs[index].offsetLeft+"px";
      harr[index]+=boxs[i].offsetHeight;
    }
  }
}
function getMinhIndex(arr,val){
  for(var i in arr){
    if(arr[i]===val){
      return i;
    }
  }
}
function checkScrollSlide(){
  var oparent=document.getElementById("main");
  var boxs=oparent.getElementsByClassName("box");
  var lastBox=boxs[boxs.length-1];
  var height=lastBox.offsetTop+Math.floor(lastBox.offsetHeight/2);
  var scrollHeigth=document.documentElement.scrollTop || document.body.scrollTop;
  // console.log(scrollHeigth);
  var seeHeigth=document.documentElement.clientHeigth || document.body.clientHeigth;
  return seeHeigth+scrollHeigth>height?true:false;
}

课程地址。

Atas ialah kandungan terperinci JS实现瀑布流布局的实例分析. Untuk maklumat lanjut, sila ikut artikel berkaitan lain di laman web China PHP!

Kenyataan：

Kandungan artikel ini disumbangkan secara sukarela oleh netizen, dan hak cipta adalah milik pengarang asal. Laman web ini tidak memikul tanggungjawab undang-undang yang sepadan. Jika anda menemui sebarang kandungan yang disyaki plagiarisme atau pelanggaran, sila hubungi admin@php.cn

Artikel sebelumnya：JS的解析顺序和作用域以及严格模式的简单介绍Artikel seterusnya：JavaScript责任链模式介绍

Artikel berkaitan

Lihat lagi