Question

我想构建一个内容滑块，左侧和右侧有一个箭头可以导航。我想设置滑块的位置+ 100px（当你点击右边）和-100px（当你点击左边）。这个功能有效。

但是出了什么问题，我想禁用它在达到某个x位置值时移动。因此，当我的内容到达结束时，它必须停止，以便用户只能导航回来。

希望你能帮到我，因为我找不到它。

CSS

#container{
    width: 500px;
    height: 150px;
    background:#CDFAA8;
    overflow:hidden;
    position:absolute;
    left: 13px;
    }

#slider{
    width: 200px;
    height: 150px;
    background:#063;
    position:absolute;
    left: 0px;
}

#block1{
    width: 100px;
    height: 150px;
    background:#067;
    float: left;
}

#block2{
    width: 100px;
    height: 150px;
    background:#079;
    float: left;
}

#move_right{
    height: 150px;
    width: 20px;
    background: #3f3f3f;
    position: absolute;
    right:0px;
    z-index: 200;
    opacity: 0.2;
}

#move_left{
    height: 150px;
    width: 20px;
    background: #3f3f3f;
    position: absolute;
    left:0px;
    z-index: 200;
    opacity: 0.2;
}

HTML

<div id="container">
    <div id="move_left"><button id="right">&laquo;</button></div><div id="move_right"><br><br><button id="left">&raquo;</button></div>
<div id="slider">

    <div id="block1"></div>    
    <div id="block2"></div> 

</div>
</div>

的java

$("#right").click(function() {
        $("#slider").animate({
            "left": "+=100px"
             }, "slow");
});

$("#left").click(function() {
        $("#slider").animate({
            "left": "-=100px"
        }, "slow");

});

Answer 1

var L = parseInt($("#slider").css('left'));

$("#right").click(function() {
    if (L<400) {
        $("#slider").animate({
            "left": "+=100px"
             }, "slow");
        });
    }

$("#left").click(function() {
    if (L>0) {
        $("#slider").animate({
            "left": "-=100px"
            }, "slow");
        });
    }

Answer 2

此滑块的最终解决方案是：

<强> HTML

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
 <script src="http://code.jquery.com/jquery-latest.js"></script>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Untitled Document</title>
<style type="text/css">
#temp{
height: 300px;
}

#container{
    width: 500px;
    height: 150px;
    background:#CDFAA8;
    overflow:hidden;
    position:absolute;
    left: 13px;
    }

#slider{
    width: 1300px;
    height: 150px;
    background:#063;
    position:absolute;
    left: 0px;
}

#block1{
    width: 100px;
    height: 150px;
    background:#067;
    float: left;
}

#block2{
    width: 100px;
    height: 150px;
    background:#079;
    float: left;
}

#move_right{
    height: 150px;
    width: 20px;
    background: #3f3f3f;
    position: absolute;
    right:0px;
    z-index: 200;
    opacity: 0.2;
}

#move_left{
    height: 150px;
    width: 20px;
    background: #3f3f3f;
    position: absolute;
    left:0px;
    z-index: 200;
    opacity: 0.2;
}
</style>
</head>

<body>
<div id="temp">
<div id="container">
    <div id="move_left"><button id="right">&laquo;</button></div><div id="move_right"><br><br><button id="left">&raquo;</button></div>
<div id="slider">

    <div id="block1">1</div>    
    <div id="block2">2</div>
    <div id="block1">3</div>    
    <div id="block2">4</div> 
    <div id="block1">5</div>    
    <div id="block2">6</div>
    <div id="block1">7</div>    
    <div id="block2">8</div>
    <div id="block1">9</div>
    <div id="block2">10</div>
    <div id="block1">11</div>    
    <div id="block2">12</div>
    <div id="block1">13</div>


</div>
</div>
</div>

<强> JAVA

(function($) {
    var slider = $('#slider'),
        step = 500,
        left = parseInt(slider.css('left'), 10),
        max = $('#container').width() - slider.width(),
        min = 0;

    $("#left").click(function() {
        if (left > max) {
            var newLeft = left - step;
            left = (newLeft>max) ? newLeft : max;
            $("#slider").animate({
                "left": left + 'px'
            }, "slow");
        }
    });

    $("#right").click(function() {
        if (left < 0) {
            var newLeft = left + step;
            left = (newLeft<min) ? newLeft : min;
            slider.animate({
                "left": left + 'px'
            }, "slow");
        }
    });
})(jQuery);

Answer 3

单击幻灯片按钮时，您必须进行一些检查。

这是执行此操作的代码。我将它放在一个闭合中并使其动态化，只是“步骤”是硬编码的，因为你的“滑块”没有你想要它滑动的宽度：

(function($) {
    var slider = $('#slider'),
        step = 100,
        left = parseInt(slider.css('left'), 10),
        max = $('#container').width() - slider.width(),
        min = 0;

    $("#right").click(function() {
        if (left < max) {
            var newLeft = left+step;
            left = (newLeft<max) ? newLeft : max;
            $("#slider").animate({
                "left": left + 'px'
            }, "slow");
        }
    });

    $("#left").click(function() {
        if (left > 0) {
            var newLeft = left - step;
            left = (newLeft>min) ? newLeft : min;
            slider.animate({
                "left": left + 'px'
            }, "slow");
        }
    });
})(jQuery);

Jquery滑块控制器

3 个答案: