jQuery左右滚动4屏弹性焦点图代码

2020-04-10　来源/作者：懒人图库　分类：网站常用　 «»

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<script src="https://libs.baidu.com/jquery/2.0.0/jquery.min.js"></script>
<style type="text/css">
*{margin:0;padding:0}
.xixi {
	position: absolute;
	top: 50%;
	left: 50%;
	-webkit-transform: translate(-50%, -50%);
	-moz-transform: translate(-50%, -50%);
	-ms-transform: translate(-50%, -50%);
	-o-transform: translate(-50%, -50%);
	transform: translate(-50%, -50%);
}
.bx_container{width:663px; height:364px; position:relative;}
.bx_container ul li{width:162px; height:364px; line-height:364px; float:left; overflow:hidden; cursor:pointer; background:#FC3;text-align:center}
.bx_container ul li img{width:162px; height:364px;}
.bx_wrap .prev,.bx_wrap .next{width:27px; height:51px; outline-style:none;outline-width:0;position:absolute; top:160px; z-index:111;}
.bx_wrap a.prev{background:#FC6; left:-60px;}
.bx_wrap a.next{background:#FC3; right:-60px;}
</style>
<title>jQuery左右滚动4屏弹性焦点图代码-懒人图库</title>
</head>

<body>
<script type="text/javascript">
(function($) {
    $.fn.bxCarousel = function(options) {
        var defaults = {
            move: 4,
            display_num: 4,
            speed: 500,
            margin: 0,
            auto: false,
            auto_interval: 200,
            auto_dir: 'next',
            auto_hover: false,
            next_text: 'next',
            next_image: '',
            prev_text: 'prev',
            prev_image: '',
            controls: true
        };
        var options = $.extend(defaults, options);
        return this.each(function() {
            var $this = $(this);
            var li = $this.find('li');
            var first = 0;
            var fe = 0;
            var last = options.display_num - 1;
            var le = options.display_num - 1;
            var is_working = false;
            var j = '';
            var clicked = false;
            li.css({
                'float': 'left',
                'listStyle': 'none',
                'marginRight': options.margin
            });
            var ow = li.outerWidth(true);
            wrap_width = (ow * options.display_num) - options.margin;
            var seg = ow * options.move;
            $this.wrap('<div class="bx_container"></div>').width(999999);
            if (options.controls) {
                if (options.next_image != '' || options.prev_image != '') {
                    var controls = '<a href="" class="prev"><img src="' + options.prev_image + '"></a><a href="" class="next"><img src="' + options.next_image + '"></a>';
                }
                else {
                    var controls = '<a href="" class="prev">' + options.prev_text + '</a><a href="" class="next">' + options.next_text + '</a>';
                }
            }
            $this.parent('.bx_container').wrap('<div class="bx_wrap"></div>').css({
                'position': 'relative',
                'width': wrap_width,
                'overflow': 'hidden'
            }).before(controls);
            var w = li.slice(0, options.display_num).clone();
            var last_appended = (options.display_num + options.move) - 1;
            $this.empty().append(w);
            get_p();
            get_a();
            $this.css({
                'position': 'relative',
                'left': -(seg)
            });
            $this.parent().siblings('.next').click(function() {
                slide_next();
                clearInterval(j);
                clicked = true;
                return false;
            });
            $this.parent().siblings('.prev').click(function() {
                slide_prev();
                clearInterval(j);
                clicked = true;
                return false;
            });
            /*新增 START*/
            $this.mouseover(function(e){
                if(is_working){
                    return false;
                }
                var e = e || event;
                var fobj = e.target || e.srcElement;
                if(fobj.tagName == 'LI'){
                    var i = $(fobj).index();
                    if(i == 7){
                        //这是第4个li
                        $(this).stop().animate({'left':-(ow+seg-options.margin)},options.speed);
                    }else{
                        //这是第1、2、3个li
                        $(this).stop().animate({'left':-seg},options.speed);
                    }
                    $(fobj).addClass('active').stop().animate({'width':2*(ow-options.margin)},options.speed).siblings('.active').removeClass('active').stop().animate({'width':ow-options.margin},options.speed);
                }
            });
            $this.mouseout(function(e){
                //归位
                if(is_working){
                    return false;
                }
                $(this).stop().animate({'left':-seg},options.speed);
                $(this).find('.active').removeClass('active').stop().animate({'width':ow-options.margin},options.speed);
            });
            /*新增 END*/
            if (options.auto) {
                start_slide();
                if (options.auto_hover && clicked != true) {
                    $this.find('li').live('mouseenter', 
                    function() {
                        if (!clicked) {
                            clearInterval(j);
                        }
                    });
                    $this.find('li').live('mouseleave', 
                    function() {
                        if (!clicked) {
                            start_slide();
                        }
                    });
                }
            }
            function start_slide() {
                if (options.auto_dir == 'next') {
                    j = setInterval(function() {
                        slide_next()
                    },
                    options.auto_interval);
                } else {
                    j = setInterval(function() {
                        slide_prev()
                    },
                    options.auto_interval);
                }
            }
            function slide_next() {
                if (!is_working) {
                    is_working = true;
                    set_pos('next');
                    $this.animate({
                        left: '-=' + seg
                    },
                    options.speed, 
                    function() {
                        $this.find('li').slice(0, options.move).remove();
                        $this.css('left', -(seg));
                        get_a();
                        is_working = false;
                    });
                }
            }
            function slide_prev() {
                if (!is_working) {
                    is_working = true;
                    set_pos('prev');
                    $this.animate({
                        left: '+=' + seg
                    },
                    options.speed, 
                    function() {
                        $this.find('li').slice( - options.move).remove();
                        $this.css('left', -(seg));
                        get_p();
                        is_working = false;
                    });
                }
            }
            function get_a() {
                var str = new Array();
                var lix = li.clone();
                le = last;
                for (i = 0; i < options.move; i++) {
                    le++
                    if (lix[le] != undefined) {
                        str[i] = $(lix[le]);
                    } else {
                        le = 0;
                        str[i] = $(lix[le]);
                    }
                }
                $.each(str, 
                function(index) {
                    $this.append(str[index][0]);
                });
            }
            function get_p() {
                var str = new Array();
                var lix = li.clone();
                fe = first;
                for (i = 0; i < options.move; i++) {
                    fe--
                    if (lix[fe] != undefined) {
                        str[i] = $(lix[fe]);
                    } else {
                        fe = li.length - 1;
                        str[i] = $(lix[fe]);
                    }
                }
                $.each(str, 
                function(index) {
                    $this.prepend(str[index][0]);
                });
            }
            function set_pos(dir) {
                if (dir == 'next') {
                    first += options.move;
                    if (first >= li.length) {
                        first = first % li.length;
                    }
                    last += options.move;
                    if (last >= li.length) {
                        last = last % li.length;
                    }
                } else if (dir == 'prev') {
                    first -= options.move;
                    if (first < 0) {
                        first = li.length + first;
                    }
                    last -= options.move;
                    if (last < 0) {
                        last = li.length + last;
                    }
                }
            }
        });
    }
})(jQuery);
</script>

<di class="xixi">    
    <div class="bx_container">
        <ul id="example1">
            <li>11111</li>  
            <li>22222</li>  
            <li>33333</li>  
            <li>44444</li>  
            <li>55565</li>  
            <li>66666</li>  
            <li>77777</li>  
            <li>88888</li>  
        </ul>
    </div>
</div>
<div style="text-align:center;margin:50px 0">
<p>来源：<a href="https://www.lanrentuku.com/" target="_blank">懒人图库</a>　代码整理：<a href="https://www.lanrentuku.com/" target="_blank">懒人图库</a>　感谢：<a href="http://zheye.cc/" target="_blank">折页网</a></p><br />
<p>＊尊重他人劳动成果，转载请自觉注明出处！注：此代码仅供学习交流，请勿用于商业用途。</p>
</div>
</body>
</html>

运行代码保存代码提示：您可以先修改部分代码再运行，保存代码功能在Firefox下无效。

jQuery左右滚动4屏弹性焦点图代码，可灵活运用填充图片和修改左右按钮样式，兼容主流浏览器。

标签：网站常用