Home > Backend Development > PHP Tutorial > jquery实现瀑布流并与php实现数据交互

jquery实现瀑布流并与php实现数据交互

WBOY
Release: 2016-06-23 13:37:23
Original
1338 people have browsed it

以前js 实现过一个瀑布流,jquery 也来实现一个

主要思路:

1  先显示出来大概20张图片,使界面出现滚动条 

2 设置显示出来图片父id 设置为relative 定位,图片定位方式为float 定位

3 使刚显示出来的图片作为折叠出现,呈现为瀑布流

4 当滚动 滚动条时,判断是否进行加载图片

5 使新加载的图片重新进行瀑布流排序

重点:

1 判断什么时间进行加载新图片

2 实现瀑布流式排序

怎样确定加载哪部分图片那,在后台limit 一下位置就ok啦

好,上代码:

1 先显示出来部分图片

                //实现瀑布流显示图片                public function photo(){                    $id = M("Cate")->field("id")->where("name = '相册展示'")->select();                    $this->image_list = M("Blog")->field("content ,summary")->limit(10)->order("time desc")->where("cid = {$id[0]['id']}")->select();                    $this->length=10;//刚开始显示10张图片                    $this->cur_position = '相册展示';                    $this->id           = $id[0]['id'];                    $this->display();                }
Copy after login

2 前台代码:

Copy after login
  • {$v.title}
  • {$v.title}

3 前台样式:

    <!--content end-->    <style type="text/css">        #wf-main{position: relative;}        #wf-main li{padding: 15px 0 0 15px; float:left;}    </style>
Copy after login


4 重点 js 代码:

$(function(){    waterfall();    //进行加载图片    $(window).scroll(function(){         if(checkscrollside()){             var offset = $("input[name=offset]").val();             var length = $("input[name=length]").val();             var justice = $("input[name=justic]").val();             if(justice === offset){                 return false;             }else{                 $("input[name=justic]").val(offset);             }             $.post( //每次添加新元素进行瀑布流排序                     "/Index/Show/more_photo",                    {                        offset :offset,                        length:length                    },function(data){                        if(data){                            $(data).each(function(index,value){                            $li =  $("
Copy after login
  • ").addClass("wf-cld").appendTo("#wf-main"); $("jquery实现瀑布流并与php实现数据交互").attr({"src":value.summary,"title":value.title}).css({"width":"200px","height":"auto"}).appendTo($li); }); $("input[name=offset]").val(parseInt(offset) + 10); console.log($("#wf-main>li").length); //确保滚动条高度保持不变 var scroll_top = $(window).scrollTop(); waterfall(); $(window).scrollTop(scroll_top); } },"json"); } }); });//让图片折叠排列function waterfall(){ var $par_main = $("#wf-main"); //父元素 var $child_main = $("#wf-main>li"); //子元素 var par_width = $par_main.width(); //获得父元素的宽度 var child_width = $child_main.eq(0).width(); //获得子元素宽度 var num_col = Math.floor(par_width / child_width); //一行显示多少列 var col_arr = []; //一列中所有元素相加后的高度 做多有num_col 个值 col_arr.length=0; $child_main.each(function(index,value){ if(index li"); var trigger_heigth = $child_main.last().get(0).offsetTop + $child_main.height() / 2; //滚动条高度 var scroll_top = $(window).scrollTop(); //获取页面宽度 var docu_width = $(document).width(); return (trigger_heigth
    5 每次都重新加载新图片的后台代码:

        //根据ajax 每次显示出来部分图片                public function more_photo(){                    $offset = $_POST['offset'];                    $length = $_POST['length'];                    $id = M("Cate")->field("id")->where("name = '相册展示'")->select();                    $image_list = M("Blog")->field("content ,summary,title")->limit($offset,$length)->order("time desc")->where("cid = {$id[0]['id']}")->select();                    exit(json_encode($image_list));                }
    Copy after login


    好啦,到此结束:

    顺便秀秀战果了: 

    实际地址就是在个人博客上面啦:

    http://buyingfeiblog.sinaapp.com/

    代码进行时,敬请期待!

  • source:php.cn
    Statement of this Website
    The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
    Popular Tutorials
    More>
    Latest Downloads
    More>
    Web Effects
    Website Source Code
    Website Materials
    Front End Template