滚动加载更多

<div class="list-loading"></div>

.list-loading{

1. vertical-align: middle;
2. bottom: 0
3. animation: spin 1s 
    
   linear 0s infinite;
4. transition: all .5s 
    
   ease 0s;
5. transition-property: height;
6. transition-duration: .5s !important;
7. position: relative;
8. overflow: hidden;
9.  0;
10. height：0；
11. margin: 0 auto;

}

function PullLoadDate(dom,option){

    this.dom = $(dom); // 最大的父容器
    this.wrapper = this.dom.find(option.wrapper);  // 模板的容器
    this.template = $(option.template); // 模板的ID
    this.ajax = option.ajax; // 请求地址
    this.noData = option.noData; // 没数据的时候，让提示文字显示
    this.pending = false;  // 是否加载完
    this.hasData = true; // 是否有数据
    this.pageNationInit = {  // 初始
        pageSize:10,
        pageNo:1
    };

    this.pageNation = $.extend({},this.pageNationInit,option.pageNation);

    this.init = function(){
        this.pull();
        this.scroll();
    };
    this.templateInit = function(data){
        var templateInvitation = this.template.html();
        var templateInit = Template7.compile(templateInvitation);
        return templateInit(data);
    };
    this.pull = function(){
        if(!this.hasData || this.pending) return;
        this.pending = true;
        var self = this;
        $(".list-loading").addClass("active");
        this.dataInit(function(data){
            self.pageNation.pageNo++;
            var totalPage = Math.ceil(data.totalRow / self.pageNation.pageSize);
            if(self.pageNation.pageNo > totalPage){
               self. hasData = false;
            }
            var html = self.templateInit(data);
            self.wrapper.append(html);
            self.pending = false;
            $(".list-loading").removeClass("active");
        },function(){
            self.dom.find(self.noData).show();
            self.pending = false;
            $(".list-loading").removeClass("active");
        });

    };
    this.dataInit = function(success,error){
        var self = this;
        $.ajax({
            url:self.ajax,
            type:"post",
            data:{pagenation:JSON.stringify(self.pageNation)},
            success:function(res){
                if(res.list && res.list.length){
                    success(res);
                }else{
                    error();
                }
            },
            error:function(){
                if(typeof error == "function"){
                    error();
                }
            }
        });

    };

    this.scroll = function(){
        var self = this;
        self.dom.scroll(function () {
            var pageScrollTop = this.scrollHeight - this.clientHeight;
            if (pageScrollTop - this.scrollTop < 2) {
                self.pull();
            }
        });
    };
    this.init();
}