如何在动态数据中使用滚动功能进入页脚

时间:2013-07-17 10:07:11

标签: html5 jquery jquery-mobile

我必须在页脚中使用滚动功能,其中数据已动态存储在按钮中,滚动应隐藏然后我们再次滚动显示所有数据和滚动应在页脚中动态加载仅窗口屏幕不应仅更改页脚将在滚动时改变

在jquery中的

: -

 function callXMLConnection() {  

        $.support.cors = true;
           $.ajax({
                type: "GET",
                url: "url.html",
                contentType: "text/xml",
                dataType: "xml",
                data: "",
                cache:false,
                processData:false,
                crossDomain:true,
                success: processSuccess,

            });

      }


      function processSuccess(data) {

             $(data).find("category").each(function () {

             var id = $(this).find('id').text();
             var title = $(this).find('title').text();
             var scripts = "<a href='#' data-role='button' data-theme='b' data-inline='true'>"+title+"</a>"                
            $("#menu_button1")
             .append(scripts)
             .trigger('create');
         });
      }
   $(document).unbind('ready').bind('ready', function () {
     $("#menu_button1").scroll(function () {
     // if ($("#menu_button1").scrollLeft(300) == $(document).width() - $("#menu_button1").width()) 
     if ($("#menu_button1").scrollHeight - $("#menu_button1").scrollTop() == $("#menu_button1").outerHeight())
     {
       callXMLConnection(); 
   }
});

     });

在html5中: -

<div data-role="footer" data-position="fixed" id="scroll_menu" style="overflow: scroll;">
              <div class="menu" id="menu_button1" ></div>
</div>

1 个答案:

答案 0 :(得分:3)

最后我得到了这些

的答案

在HTML5中: -

 <div data-role="page" data-theme="b" id="jqm-home">    
      <div data-role="footer" data-position="fixed" data-theme="c">        
           <div  class="categories" id="cat">                
              <ul id="cat_list" class="cat_list_class"></ul>               
           </div>
      </div>    
</div>

在jquery中: -

 var step = 1;
 var current = 0;
 var maximum = 0;
 var visible = 2;
 var speed = 500;
 var liSize = 120;
 var height = 60;    
 var ulSize = liSize * maximum;
 var divSize = liSize * visible;

 $(document).unbind('pageinit').bind('pageinit', function () {    
      callMenuConnection(); 
       $('.categories').css("width", "auto").css("height", height+"px").css("visibility", "visible").css("overflow", "hidden").css("position", "relative");
       $(".categories ul a").css("list-style","none").css("display","inline");
       $(".categories ul").css("width", ulSize+"px").css("left", -(current * liSize)).css("position", "absolute").css("white-space","nowrap").css("margin","0px").css("padding","5px");      
  });

 $(document).unbind('click').bind('click', function () {
        scroll();
 });
   function callMenuConnection() {  
       $.support.cors = true;
       $.ajax({
            type: "GET",
            url: "one.html",
            contentType: "text/xml",
            dataType: "xml",
            data: "",
            cache:false,
            processData:false,
            crossDomain:true,
            success: processSuccess,
            error: processError
        }); 
  }
      var scripts ="";     
  function processSuccess(data) {
         $(data).find("category").each(function () {     
         var id = $(this).find('id').text();
         var title = $(this).find('title').text();
          scripts = scripts+'<a  class="ids_cat" data-role="button" data-transition="slide"  data-inline="true" >' +title+ '</a>';
        });
        $('#cat_list').append(scripts);
        $('#cat_list').trigger('create');
         maximum = $(".categories ul a").size();
  }

     function processError(data)
       {
           alert("error");
       }

 function scroll(){ 
 $(".categories").swipeleft(function(event){
  if(current + step < 0 || current + step > maximum - visible) {return; }
else {
    current = current + step;
    $('.categories ul').animate({left: -(liSize * current)}, speed, null);
}
return false;
});

  $(".categories").swiperight(function(event){
    if(current - step < 0 || current - step > maximum - visible) {return; }
        else {
      current = current - step;
       $('.categories ul').animate({left: -(liSize * current)}, speed, null);
    }
   return false;
   });         
 }