三种方式实现瀑布流布局

分别使用javascript，jquery，css实现瀑布流布局：

第一种方式：使用JavaScript：

  1 <!DOCTYPE html>
  2 <html lang="en">
  3 <head>
  4 <meta charset="UTF-8">
  5 <title>瀑布流布局</title>
  6 <style>
  7 *{padding:0;margin:0;}
  8 .clearfix:after,
  9 .clearfix:before {
 10 content: " ";
 11 display: table;
 12 }
 13 .clearfix:after {
 14 clear: both;
 15 }
 16 .main {
 17 position: relative;
 18 -webkit-column-width: 210px;
 19 -moz-column-width: 210px;
 20 -webkit-column-gap: 5px;
 21 -moz-column-gap: 5px;
 22 }
 23 .box {
 24 float: left;
 25 padding: 15px 0 0 15px;
 26 }
 27 .box .pic {
 28 width: 180px;
 29 height: auto;
 30 padding: 10px;
 31 border-radius: 5px;
 32 box-shadow: 0 0 5px #cccccc;
 33 border: 1px solid #cccccc;
 34 }
 35 .box .pic img {
 36 display: block;
 37 width: 100%;
 38 }
 39 
 40 
 41 </style>
 42 </head>
 43 <body>
 44 <div class="main clearfix" id="main">
 45 <div class="box">
 46 <div class="pic"><img src="./images/0.jpg"></div>
 47 </div>
 48 <div class="box">
 49 <div class="pic"><img src="./images/1.jpg"></div>
 50 </div>
 51 <div class="box">
 52 <div class="pic"><img src="./images/2.jpg"></div>
 53 </div>
 54 <div class="box">
 55 <div class="pic"><img src="./images/3.jpg"></div>
 56 </div>
 57 <div class="box">
 58 <div class="pic"><img src="./images/4.jpg"></div>
 59 </div>
 60 <div class="box">
 61 <div class="pic"><img src="./images/5.jpg"></div>
 62 </div>
 63 <div class="box">
 64 <div class="pic"><img src="./images/6.jpg"></div>
 65 </div>
 66 <div class="box">
 67 <div class="pic"><img src="./images/7.jpg"></div>
 68 </div>
 69 <div class="box">
 70 <div class="pic"><img src="./images/8.jpg"></div>
 71 </div>
 72 <div class="box">
 73 <div class="pic"><img src="./images/9.jpg"></div>
 74 </div>
 75 <div class="box">
 76 <div class="pic"><img src="./images/10.jpg"></div>
 77 </div>
 78 <div class="box">
 79 <div class="pic"><img src="./images/11.jpg"></div>
 80 </div>
 81 <div class="box">
 82 <div class="pic"><img src="./images/12.jpg"></div>
 83 </div>
 84 <div class="box">
 85 <div class="pic"><img src="./images/13.jpg"></div>
 86 </div>
 87 <div class="box">
 88 <div class="pic"><img src="./images/14.jpg"></div>
 89 </div>
 90 <div class="box">
 91 <div class="pic"><img src="./images/15.jpg"></div>
 92 </div>
 93 <div class="box">
 94 <div class="pic"><img src="./images/16.jpg"></div>
 95 </div>
 96 <div class="box">
 97 <div class="pic"><img src="./images/17.jpg"></div>
 98 </div>
 99 <div class="box">
100 <div class="pic"><img src="./images/18.jpg"></div>
101 </div>
102 <div class="box">
103 <div class="pic"><img src="./images/19.jpg"></div>
104 </div>
105 <div class="box">
106 <div class="pic"><img src="./images/20.jpg"></div>
107 </div>
108 <div class="box">
109 <div class="pic"><img src="./images/21.jpg"></div>
110 </div>
111 <div class="box">
112 <div class="pic"><img src="./images/22.jpg"></div>
113 </div>
114 <div class="box">
115 <div class="pic"><img src="./images/23.jpg"></div>
116 </div>
117 <div class="box">
118 <div class="pic"><img src="./images/24.jpg"></div>
119 </div>
120 <div class="box">
121 <div class="pic"><img src="./images/25.jpg"></div>
122 </div>
123 <div class="box">
124 <div class="pic"><img src="./images/26.jpg"></div>
125 </div>
126 <div class="box">
127 <div class="pic"><img src="./images/27.jpg"></div>
128 </div>
129 <div class="box">
130 <div class="pic"><img src="./images/28.jpg"></div>
131 </div>
132 <div class="box">
133 <div class="pic"><img src="./images/29.jpg"></div>
134 </div>
135 <div class="box">
136 <div class="pic"><img src="./images/25.jpg"></div>
137 </div>
138 <div class="box">
139 <div class="pic"><img src="./images/26.jpg"></div>
140 </div>
141 <div class="box">
142 <div class="pic"><img src="./images/27.jpg"></div>
143 </div>
144 <div class="box">
145 <div class="pic"><img src="./images/28.jpg"></div>
146 </div>
147 <div class="box">
148 <div class="pic"><img src="./images/29.jpg"></div>
149 </div>
150 </div>
151 <script>
152 window.onload = function(){
153 waterfall('main','box');
154 
155 
156 //模拟json数据
157 var dataJson = {'data': [{'src':'30.jpg'},{'src':'31.jpg'},{'src':'32.jpg'},{'src':'33.jpg'},{'src':'34.jpg'},{'src':'35.jpg'},{'src':'36.jpg'},{'src':'37.jpg'},{'src':'38.jpg'},{'src':'39.jpg'},{'src':'40.jpg'},{'src':'41.jpg'},{'src':'42.jpg'},{'src':'43.jpg'},{'src':'44.jpg'},{'src':'45.jpg'}]};
158 
159 
160 //监听scroll事件
161 window.onscroll = function(){
162 var isPosting = false;
163 if(checkScollSlide('main','box') && !isPosting){
164 var oParent = document.getElementById('main');
165 for(var i in dataJson.data){
166 isPosting = true;
167 var oBox = document.createElement('div');
168 oBox.className = 'box';
169 oBox.innerHTML = '<div class="pic"><img src="./images/'+dataJson.data[i].src+'"></div>';
170 oParent.appendChild(oBox);
171 }
172 isPosting = false;
173 waterfall('main','box');
174 }
175 }
176 
177 
178 }
179 
180 
181 /*
182 * parent 父元素id clsName 块元素类*/
183 function waterfall(parent,clsName){
184 //获取父元素
185 var oParent = document.getElementById(parent),
186 //获取所有box
187 aBoxArr = oParent.getElementsByClassName(clsName),
188 //单个box宽度
189 iBoxW = aBoxArr[0].offsetWidth,
190 // 列数
191 cols = Math.floor(document.documentElement.clientWidth / iBoxW);
192 
193 
194 oParent.style.cssText = 'width:'+iBoxW*cols+'px;margin:0 auto;';
195 
196 
197 //储存所有的高度
198 var hArr = [];
199 for(var i = 0; i < aBoxArr.length; i++){
200 if(i < cols){
201 hArr[i] = aBoxArr[i].offsetHeight;
202 }else{
203 //获取hArr最小值
204 var minH = Math.min.apply(null,hArr),
205 // hArr最小值索引index
206 minHIndex = getMinHIndex(hArr,minH);
207 aBoxArr[i].style.cssText = 'position:absolute;top:'+minH+'px;left:'+aBoxArr[minHIndex].offsetLeft+'px;';
208 
209 
210 //添加元素之后更新hArr
211 hArr[minHIndex] += aBoxArr[i].offsetHeight;
212 }
213 }
214 }
215 
216 
217 //获取最小值索引
218 function getMinHIndex(arr,val){
219 for(var i in arr){
220 if(arr[i] == val){
221 return i;
222 }
223 }
224 }
225 
226 
227 //检查是否满足加载数据条件,parent 父元素id clsName 块元素类
228 function checkScollSlide(parent,clsName){
229 var oParent = document.getElementById(parent),
230 aBoxArr = oParent.getElementsByClassName(clsName),
231 // 最后一个box元素的offsetTop+高度的一半
232 lastBoxH = aBoxArr[aBoxArr.length - 1].offsetTop + aBoxArr[aBoxArr.length - 1].offsetHeight / 2,
233 //兼容js标准模式和混杂模式
234 scrollTop = document.documentElement.scrollTop || document.body.scrollTop,
235 height = document.documentElement.clientHeight || document.body.clientHeight;
236 return lastBoxH < scrollTop + height ? true : false;
237 }
238 
239 
240 </script>
241 
242 </body>
243 </html>

第二种方式：使用jquery：(html结构跟css同上)

$( window ).on( "load", function(){
    waterfall('main','box');

    //模拟数据json
    var dataJson = {'data': [{'src':'30.jpg'},{'src':'31.jpg'},{'src':'32.jpg'},{'src':'33.jpg'},{'src':'34.jpg'},{'src':'35.jpg'},{'src':'36.jpg'},{'src':'37.jpg'},{'src':'38.jpg'},{'src':'39.jpg'},{'src':'40.jpg'},{'src':'41.jpg'},{'src':'42.jpg'},{'src':'43.jpg'},{'src':'44.jpg'},{'src':'45.jpg'}]};

    window.onscroll=function(){
        var isPosting = false;
        if(checkscrollside('main','box') && !isPosting){
            isPosting = true;
            $.each(dataJson.data,function(index,dom){
                var $box = $('<div class="box"></div>');
                $box.html('<div class="pic"><img src="./images/'+$(dom).attr('src')+'"></div>');
                $('#main').append($box);
                waterfall('main','box');
                isPosting = false;
            });
        }
    }
});

/*
 parend 父级id
 clsName 元素class
 */
function waterfall(parent,clsName){
    var $parent = $('#'+parent);//父元素
    var $boxs = $parent.find('.'+clsName);//所有box元素
    var iPinW = $boxs.eq( 0 ).width()+15;// 一个块框box的宽
    var cols = Math.floor( $( window ).width() / iPinW );//列数
    $parent.width(iPinW * cols).css({'margin': '0 auto'});

    var pinHArr=[];//用于存储 每列中的所有块框相加的高度。

    $boxs.each( function( index, dom){
        if( index < cols ){
            pinHArr[ index ] = $(dom).height(); //所有列的高度
        }else{
            var minH = Math.min.apply( null, pinHArr );//数组pinHArr中的最小值minH
            var minHIndex = $.inArray( minH, pinHArr );
            $(dom).css({
                'position': 'absolute',
                'top': minH + 15,
                'left': $boxs.eq( minHIndex ).position().left
            });
            //添加元素后修改pinHArr
            pinHArr[ minHIndex ] += $(dom).height() + 15;//更新添加了块框后的列高
        }
    });
}

//检验是否满足加载数据条件，即触发添加块框函数waterfall()的高度：最后一个块框的距离网页顶部+自身高的一半(实现未滚到底就开始加载)
function checkscrollside(parent,clsName){
    //最后一个块框
    var $lastBox = $('#'+parent).find('.'+clsName).last(),
        lastBoxH = $lastBox.offset().top + $lastBox.height()/ 2,
        scrollTop = $(window).scrollTop(),
        documentH = $(document).height();
    return lastBoxH < scrollTop + documentH ? true : false;
}

第三种方式：使用css：(html结构同上)

.clearfix:after,
.clearfix:before {
  content: " ";
  display: table;
}
.clearfix:after {
  clear: both;
}
.main {
  position: relative;
  [color=#ff0000]-webkit-column-width: 210px;
  -moz-column-width: 210px;
  -webkit-column-gap: 5px;
  -moz-column-gap: 5px;[/color]
}
.box {
  float: left;
  padding: 15px 0 0 15px;
}
.box .pic {
  width: 180px;
  height: auto;
  padding: 10px;
  border-radius: 5px;
  box-shadow: 0 0 5px #cccccc;
  border: 1px solid #cccccc;
}
.box .pic img {
  display: block;
  width: 100%;
}

瀑布流实现方式比较：
Javascript原生方式/jquery方式
1、需要计算，列数 = 浏览器窗口宽度/图片宽度，图片定位是根据每一列的高度计算下来图片的位置；
2、图片排序是按照图片计算的位置横向排列，位置是计算出来的，比较规范

Css方式
1、不需要计算，浏览器自动计算，只需设置列宽，性能高；
2、列宽随着浏览器窗口大小进行改变，用户体验不好；
3、图片排序按照垂直顺序排列，打乱图片显示顺序；
4、图片加载还是依靠javascript/jquery实现

转自：http://www.qdfuns.com/notes/27624/397dc45aeb17e2da9e0351a3ae973b64.html

posted @ 2017-02-09 20:50 苏坡曼阅读(1421) 评论(0) 编辑收藏举报

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苏坡曼

三种方式实现瀑布流布局

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