jQuery图片无缝轮播插件;

图片轮播这种效果在web开发中看常见,网上的插件也有很多,最近在整理项目的过程中,把之前的图片轮播效果整合了一下,整理成一个可调用的插件以做记录,也方便更多前端爱好者来学习使用;
图片的轮播原理很简单,无非是动画改变需要运动元素的top、left等值;先来看插件的基本代码:

/**
* Created by jone on 2016/5/3.
*/
(function($){
$.fn.slider=function(options){
var defaults={
width:1000,
height:300,
autoPlay: true,
sliderArrow: true,
sliderBar: true,
speed: 3000,
effect: 'horizontal',
responsive: false ,
callback: function() {}, }
var obj = $.extend(defaults, options);
var index=0;
var timer=null; this.each(function(index, el) {
var me = $(this);
if (obj.responsive) {
var parent = me.parent();
me.css('width', parent.width())
me.children("ul").find("li").css('width', me.width())
} else {
me.css({
width: obj.width,
height: obj.height,
})
me.children("ul").find("li").css({
width: obj.width,
height: obj.height,
})
}
var li_width = me.children("ul").find("li").width();
var li_height = me.children("ul").find("li").height();
var li_length = me.children("ul").find("li").length; me.children("ul").css({
position: 'absolute',
left: 0,
top: 0,
width: li_width * li_length
})
me.children("ul").find("li").css("float","left");
if (obj.sliderArrow) {
var btn = "<span class='btn prev'><</span>" + '' + "<span class='btn next'>></span>"
me.append(btn);
me.find(".btn").hide();
me.find(".prev").click(function() {
index--;
if (index < 0) {
index = li_length - 1
}
moveIndex(index);
})
me.find(".next").click(function() {
index++;
if (index > li_length - 1) {
index = 0
} moveIndex(index); })
};
if (obj.sliderBar) {
var bar = "<em class='bar'></em>";
me.append(bar);
for (var i = 0; i < li_length; i++) {
me.find('.bar').append('<i></i>')
};
me.find('.bar i').eq(0).addClass('on');
me.find('.bar').css('marginLeft', -me.find('.bar').outerWidth() / 2);
me.find('.bar i').on("mouseenter", function() {
index = $(this).index();
moveIndex(index)
})
};
if (obj.autoPlay) {
clearInterval(timer)
timer = setInterval(autoMove, obj.speed);
} me.hover(function() {
clearInterval(timer);
me.find(".btn").fadeIn();
}, function() {
me.find(".btn").fadeOut();
if (obj.autoPlay) {
timer = setInterval(autoMove, obj.speed);
} else {
return
}
}); function autoMove() {
index++;
if (index > li_length - 1) {
index = 0
}
moveIndex(index);
}; function moveIndex(index) {
switch(obj.effect.toLowerCase()) {
case 'horizontal':
me.children("ul").stop(true, true).animate({left: -index * li_width}, 800);
me.find('.bar i').eq(index).addClass('on').siblings().removeClass('on');
break;
case 'vertical':
me.children("ul").width(li_width);
me.children("ul").find("li").css("float","none");
me.children("ul").stop(true, true).animate({top: -index * li_height}, 800);
me.find('.bar i').eq(index).addClass('on').siblings().removeClass('on');
break;
case 'fade':
me.children("ul").width(li_width);
me.children("ul").find("li").css({
float:'none',
position:'absolute',
left:0,
top:0,
});
me.children("ul").find("li").eq(index).fadeIn().siblings().fadeOut();
me.find('.bar i').eq(index).addClass('on').siblings().removeClass('on');
break;
}
}
});
}
})(jQuery)

插件的调用:

$("#slider1").slider({
effect:'fade',
width:730,
height:454
});

插件基本API:

width:1000,             // 滚动容器宽;
height:300, // 滚动容器高;
autoPlay: true, // 默认开启自动滚动;
sliderArrow: true, // 默认开启左右切换箭头;
sliderBar: true, // 默认开启分页切换栏目;
speed: 3000, // 速度;
effect: 'horizontal', // 轮播效果,默认水平,有horizontal、vertical、fade供选择;
responsive: false , // 响应式,默认不开启;
callback: function() {},// 回调函数;

直接来看DEMO吧:http://codepen.io/jonechen/pen/reQqGK

插件下载:http://files.cnblogs.com/files/jone-chen/jquery.slider.js.zip

上一篇:js实现图片无缝轮播


下一篇:记一个jquery 无缝轮播的制作方法