Question

在下面的代码中，我试图实现无限滚动。我遇到的问题是'document.height'和'window.height'给我返回相同的值。有人可以在我出错的地方帮助我吗？

<html>
    <head>
        <script src="http://code.jquery.com/jquery-1.10.1.min.js"></script>
        <script type="text/javascript">
        $(window).scroll(function(){
            if($(window).scrollTop() == $(document).height() - $(window).height()){
                $('div#loadmoreajaxloader').show();
                $.ajax({
                    url: "loadmore.php",
                    success: function(html){
                        if(html){
                            $("#postswrapper").append(html);
                            $('div#loadmoreajaxloader').hide();
                            console.log($(document).height());
                            console.log($(window).height());
                        }else{
                            $('div#loadmoreajaxloader').html('<center>No more posts to show.</center>');
                        }
                    }
                });
            }
        });
    </script>

        <style>
        body{ margin:0px; }

        #wrapper{
            width:600px;
            margin:auto;
        }
        .spacer{
            clear:both;
            height:5px;
        }
        .txtarea{
            font-size:18px;
            height:50px;
            width:100%;
        }
        #postswrapper{
            border-bottom:1px dotted #555555;
        }
        .item{
            border-top:1px dotted #555555;
            padding:10px 5px;
            font-size: 16px;
        }
        .item:hover{
            background:#EFEFEF;
        }
        #newpostlink{
            display:block;text-align:center;border:2px solid #414141;background:#7D7D7D;color:#fff; margin: 0 0 10px;padding:5px; -moz-border-radius: 5px; -webkit-border-radius: 5px; border-radius: 5px;font-size:20px;text-decoration:none;
        }
    </style>


    </head>

    <body>
                <div id="wrapper">
        <div id="postswrapper">

        <p style="font-size:28px">Infinite Scroll Demo 2</p>

<div class="item">
<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,
quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo
consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse
cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non
proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>
</div>

<div class="item">
<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,
quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo
consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse
cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non
proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>
</div>

<div class="item">
<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,
quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo
consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse
cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non
proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>
</div>

<div class="item">
<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,
quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo
consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse
cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non
proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>
</div>
        </div>

        <div id="loadmoreajaxloader" style="display:none;"><center><img src="ajax-loader.gif" /></center></div>

    </div>

<div id="footer" style="display:inline-block;width:100%;padding:10px;background-color:#FFFFFF">


</div>

    </body>



</html>

Answer 1

尝试一下......

if ($(window).scrollTop() <= $(document).height() - $(window).height()) {

window.height和document.height返回相同的值

1 个答案: