• 使用jquery+css实现瀑布流布局


    虽然可以直接使用css实现瀑布流布局,但显示的方式有点问题,所以这儿就直接使用jquery+css来实现瀑布流布局,最终效果如下:

        

    思路是通过将每个小块的position设置为relative,然后计算出在当前选择的列下应该上移的距离,然后设置div的top属性为该距离的负值,然后就达到了瀑布流的效果,代码如下:

      1 <!DOCTYPE>
      2 <html>
      3 <head>
      4     <title>vue demo</title>
      5     <script src="js/jquery-3.2.1.js"></script>
      6     <style>
      7         body{
      8             padding:0px;
      9             margin:0px;
     10         }
     11         
     12         .lv-masonry{
     13             font-size:0px;
     14         }
     15 
     16         .lv-masonry-2 .lv-masonry-item{
     17             width:calc(50% - 2px - 10px);
     18         }
     19 
     20         .lv-masonry-3 .lv-masonry-item{
     21             width:calc(33.33% - 2px - 10px);
     22         }
     23 
     24         .lv-masonry-4 .lv-masonry-item{
     25             width:calc(25% - 2px - 10px);
     26         }
     27 
     28         .lv-masonry-5 .lv-masonry-item{
     29             width:calc(20% - 2px - 10px);
     30         }
     31 
     32         .lv-masonry-item{
     33             font-size:20px;
     34             border:1px solid red;
     35             display:inline-block;
     36             margin:5px;
     37             position:relative;
     38         }
     39     </style>
     40     <script>
     41         function Masonry(el){
     42             this.el = el;
     43             this.$el = $(el);
     44             this.size = 0;
     45         }
     46 
     47         Masonry.prototype = {
     48             constructor:Masonry,
     49             init: function(){
     50                 this.size = this.$el.find('.lv-masonry-item').length;
     51                 var heights = [{}];
     52                 for(var i=1; i<=this.size; i++){
     53                     var e = {};
     54                     var $e = this.$el.find('.lv-masonry-item:nth-child(' + i + ')')
     55                     e.height = $e.height();
     56                     e.top = $e.offset().top;
     57                     heights.push(e);
     58                 }
     59                 var index = this.$el.attr("class").indexOf("lv-masonry-");
     60                 if(index > -1){
     61                     var clazz = this.$el.attr("class").substr(index);
     62                     index = clazz.indexOf(" ");
     63                     if(index > -1){
     64                         clazz = clazz.substr(0, index);
     65                     }
     66                     clazz = clazz.substr(clazz.lastIndexOf("-") + 1);
     67                     var start = parseInt(clazz);
     68                     if(!isNaN(start)){
     69                         var minpos = 1;
     70                         var mintop = heights[1].top;
     71                         for(var i=2; i<=start; i++){
     72                             if(mintop > heights[i].top){
     73                                 minpos = i;
     74                                 mintop = heights[i].top;
     75                             }
     76                         }
     77                         for(var i=1; i<=start; i++){
     78                             if(minpos != i){
     79                                 var $e = this.$el.find('.lv-masonry-item:nth-child(' + i + ')');
     80                                 $e.css("top", -1 * (heights[i].top - mintop) + "px");
     81                             }
     82                         }
     83                         heights = [{}];
     84                         for(var i=1; i<=this.size; i++){
     85                             var e = {};
     86                             var $e = this.$el.find('.lv-masonry-item:nth-child(' + i + ')')
     87                             e.height = $e.height();
     88                             e.top = $e.offset().top;
     89                             heights.push(e);
     90                         }
     91                         for(var i=start+1; i<=this.size; i++){
     92                             var $e = this.$el.find('.lv-masonry-item:nth-child(' + i + ')');
     93                             var delta = 0;
     94                             var temp = i;
     95                             do{
     96                                 delta += heights[temp-start].height + 10;
     97                                 temp -= start;
     98                             }while(temp > start);
     99                             delta = heights[i].top - heights[temp].top - delta;
    100                             $e.css("top", -1 * delta + "px");
    101                         };
    102                     }
    103                 }
    104             }
    105         }
    106         
    107         $(function(){
    108             var masonry = new Masonry('#masonry');
    109             masonry.init();
    110         });
    111     </script>
    112 </head>
    113 <body>
    114     <div class="lv-masonry lv-masonry-4" id="masonry">
    115         <div class="lv-masonry-item" style="height:50px;">
    116         1
    117         </div>
    118         <div class="lv-masonry-item" style="height:100px;">
    119         2
    120         </div>
    121         <div class="lv-masonry-item" style="height:150px;">
    122         3
    123         </div>
    124         <div class="lv-masonry-item" style="height:150px;">
    125         4
    126         </div>
    127         <div class="lv-masonry-item" style="height:50px;">
    128         5
    129         </div>
    130         <div class="lv-masonry-item" style="height:100px;">
    131         6
    132         </div>
    133         <div class="lv-masonry-item" style="height:100px;">
    134         7
    135         </div>
    136         <div class="lv-masonry-item" style="height:50px;">
    137         8
    138         </div>
    139         <div class="lv-masonry-item" style="height:50px;">
    140         9
    141         </div>
    142         <div class="lv-masonry-item" style="height:50px;">
    143         10
    144         </div>
    145     </div>
    146 </body>
    147 </html>
    masonry.html

    代码中仅实现了两列、三列、四列和五列的布局,如果要增加其他的就添加类似如下的css代码即可:

    在使用的时候要指定列,示例如下:

    然后在jquery的loag方法中添加

    var masonry = new Masonry('#masonry');
    masonry.init();

    便可使用瀑布流布局。

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  • 原文地址:https://www.cnblogs.com/lvniao/p/9123040.html
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