如何實現瀑布流布局？針對這個問題，這篇文章詳細介紹了相對應的分析和解答，希望可以幫助更多想解決這個問題的小伙伴找到更簡單易行的方法。
index.html
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>waterfall layout</title>
<link type="text/css" href="./imgs/wf.css" rel="stylesheet"/>
<script type="text/javascript" src="./imgs/wf.js"></script>
</head>
<body>
<div id="main">
<div class="box">
<div class="pic">
<img src="imgs/0.jpg"/>
</div>
</div>
<div class="box">
<div class="pic">
<img src="imgs/1.jpg"/>
</div>
</div>
<div class="box">
<div class="pic">
<img src="imgs/2.jpg"/>
</div>
</div>
<div class="box">
<div class="pic">
<img src="imgs/3.jpg"/>
</div>
</div>
<div class="box">
<div class="pic">
<img src="imgs/4.jpg"/>
</div>
</div>
<div class="box">
<div class="pic">
<img src="imgs/5.jpg"/>
</div>
</div>
<div class="box">
<div class="pic">
<img src="imgs/6.jpg"/>
</div>
</div>
<div class="box">
<div class="pic">
<img src="imgs/7.jpg"/>
</div>
</div>
<div class="box">
<div class="pic">
<img src="imgs/8.jpg"/>
</div>
</div>
<div class="box">
<div class="pic">
<img src="imgs/9.jpg"/>
</div>
</div>
<div class="box">
<div class="pic">
<img src="imgs/10.jpg"/>
</div>
</div>
<div class="box">
<div class="pic">
<img src="imgs/11.jpg"/>
</div>
</div>
<div class="box">
<div class="pic">
<img src="imgs/12.jpg"/>
</div>
</div>
<div class="box">
<div class="pic">
<img src="imgs/13.jpg"/>
</div>
</div>
<div class="box">
<div class="pic">
<img src="imgs/14.jpg"/>
</div>
</div>
<div class="box">
<div class="pic">
<img src="imgs/15.jpg"/>
</div>
</div>
<div class="box">
<div class="pic">
<img src="imgs/16.jpg"/>
</div>
</div>
<div class="box">
<div class="pic">
<img src="imgs/17.jpg"/>
</div>
</div>
<div class="box">
<div class="pic">
<img src="imgs/18.jpg"/>
</div>
</div>
<div class="box">
<div class="pic">
<img src="imgs/19.jpg"/>
</div>
</div>
<div class="box">
<div class="pic">
<img src="imgs/20.jpg"/>
</div>
</div>
<div class="box">
<div class="pic">
<img src="imgs/21.jpg"/>
</div>
</div>
<div class="box">
<div class="pic">
<img src="imgs/22.jpg"/>
</div>
</div>
<div class="box">
<div class="pic">
<img src="imgs/23.jpg"/>
</div>
</div>
<div class="box">
<div class="pic">
<img src="imgs/24.jpg"/>
</div>
</div>
<div class="box">
<div class="pic">
<img src="imgs/25.jpg"/>
</div>
</div>
</div>
</body>
</html>wf.css
@CHARSET "UTF-8";
*{margin:0;padding:0}
#main{
position: relative;
margin: 10px auto 0 auto;
}
.box{
float:left;
padding: 0 0 15px 15px;
}
.pic{
border: 1px solid #ccc;
padding: 10px;
}
.box img{
width: 200px;
height: auto;
}wf.js
window.onload = function(){
waterfall();
//要加載的數據，暫時寫一個固定數據
var dataInt = {"data":[{"src":'3.jpg'},{"src":'13.jpg'},{"src":'23.jpg'},{"src":'1.jpg'}]};
//一個判斷拖動滾動條后是否加載新內容的方法
window.onscroll = function(){
if(checkScrollSlide()){
//將數據塊渲染到當前頁的尾部
for(var i = 0; i < dataInt.data.length;i++){
var parent = document.getElementById('main');
var newBox = document.createElement('p');
newBox.className = 'box';
parent.appendChild(newBox);
var newPic = document.createElement('p');
newPic.className = 'pic';
newBox.appendChild(newPic);
var newImg = document.createElement('img');
newImg.src = "./imgs/" + dataInt.data[i].src;
newPic.appendChild(newImg);
waterfall();
}
}
}
}
function waterfall(){
var parent = document.getElementById("main");
//寫一個方法根據類名box，找到所有節點
var boxArr = getByClass(parent,'box');
//console.log(boxArr.length);//26，檢驗是否獲取到
var bodyWidth = document.body.clientWidth;
//document.body.clientWidth 窗口實時顯示時的body的寬度
var colWidth = boxArr[0].offsetWidth;//box p的寬度
var cols = Math.floor(bodyWidth / colWidth);
//給main p一個寬度，從而讓顯示內容不會隨著浮動，改變布局
var mainWidth = colWidth * cols;
parent.style.cssText = 'width:' + mainWidth + 'px;';
var colsHeight = [];//放列高度的數組
for(var i = 0; i < boxArr.length;i++){
var iBox = boxArr[i];
if(i < cols){
colsHeight.push(iBox.offsetHeight);
}else{
var rArr = searchMin(colsHeight);
var index = rArr[0];
var minH = rArr[1];
var left = parseInt(index * colWidth);
var top = minH;
iBox.style.position = "absolute";
iBox.style.left = left + 'px';
iBox.style.top = top + 'px';
colsHeight[index] += iBox.offsetHeight;
}
}
}
function getByClass(parent,clsName){
//用通配符獲得prent下的所有標簽節點
var allTags = document.getElementsByTagName("*");
var arr = new Array();
for(var i = 0; i < allTags.length;i++){
if(allTags[i].className == clsName){
arr.push(allTags[i]);
}
}
return arr;
}
function searchMin(arr){
var min = arr[0];
var index = 0;
for(var j = 0; j < arr.length; j++){
if(arr[j] < min){
min = arr[j];
index = j;
}
}
return [index,min];
}
function checkScrollSlide(){
var parent = document.getElementById('main');
var boxArr = getByClass(parent,'box');
var lastBox = boxArr[boxArr.length-1];
var lbHeight = lastBox.offsetTop+Math.floor(lastBox.offsetHeight/2);
console.log(lbHeight);
var slideH = document.body.scrollTop || document.documentElement.scrollTop;
console.log(slideH);
var winH = document.body.clientHeight || document.documentElement.clientHeight;
console.log(winH);
var swHeight = slideH + winH;
return (lbHeight < swHeight) ? true : false;
}關于如何實現瀑布流布局問題的解答就分享到這里了，希望以上內容可以對大家有一定的幫助，如果你還有很多疑惑沒有解開，可以關注億速云行業資訊頻道了解更多相關知識。
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