jquery – 主要div中的Bootstrap轮播指示器不会自动切换

我有最新的Bootstrap,并在我的页面上的某处有一个旋转木马,主旋转木马div之外的指示器.

我的旋转木马：

<div class="background-carousel">
    <div class="carousel slide carousel-fade" id="carousel-home" data-ride="carousel1">
        <div class="carousel-inner" role="listBox" id="carousel-inner-home">
            <div data-slide-no="0" class="item carousel-item active" style="background-image:url(<?PHP echo get_template_directory_uri(); ?>/assets/img/home-bg-1.png)">
            </div>
            <div data-slide-no="1" class="item carousel-item" style="background-image:url(<?PHP echo get_template_directory_uri(); ?>/assets/img/grass.jpg)">
            </div>
            <div data-slide-no="2" class="item carousel-item" style="background-image:url(<?PHP echo get_template_directory_uri(); ?>/assets/img/grass2.jpg)">
            </div>
            <div data-slide-no="3" class="item carousel-item" style="background-image:url(<?PHP echo get_template_directory_uri(); ?>/assets/img/grass3.jpg)">
            </div>
        </div>
    </div> <!-- carousel -->
</div> <!-- /.background-carousel -->

然后,我的指标在页面上的其他位置：

<div class="home-carousel-indicators">
    <ol class="carousel-indicators">
        <li data-target="#carousel-home" data-slide-to="0" class="carousel-switcher active"></li>
        <li data-target="#carousel-home" data-slide-to="1" class="carousel-switcher"></li>
        <li data-target="#carousel-home" data-slide-to="2" class="carousel-switcher"></li>
        <li data-target="#carousel-home" data-slide-to="3" class="carousel-switcher"></li>
    </ol>
</div> <!-- /.home-caraousel-indicators -->

当旋转木马切换图片时,指示灯不会改变.我还必须使用一种解决方法让他们在点击时更改轮播.

总结一下：

>我的旋转木马工作正常.
>我的旋转木马指示器位于旋转木马div之外.
>转盘时指示灯不会自动切换.
>我必须使用jQuery解决方法在单击时修复指标.

解决方法

DEMO

那么你可以使用bootstrap carousel的slide.bs.carousel选项,并根据当前幻灯片使各自的指示器处于活动状态,如下所示：

var $carousel = $('#myCarousel'); //get a reference
$carousel.carousel(); 
$carousel.bind('slide.bs.carousel',function (e) { //attach its event
    var current=$(e.target).find('.item.active'); //get the current active slide
    $('.carousel-indicators li').removeClass('active') //remove active class from all the li of carousel indicator

    var indx=$(current).index(); //get its index
    if((indx+2)>$('.carousel-indicators li').length)
        indx=-1 //if index exceeds total length of indicators present set it to -1
    $('.carousel-indicators li:nth-child('+(indx+2)+')').addClass('active');//set the respective indicator active

});

UPDATE

上面给出的答案仅显示了当指示器放置在转盘外时如何使指示器处于活动状态.由于我没有处理旋转木马指示器的点击事件,因此点击时无效.以下更新修复相同.

UPDATED DEMO

var $carousel = $('#myCarousel');
$carousel.carousel();
var handled=false;//global variable

$carousel.bind('slide.bs.carousel',function (e) {
    var current=$(e.target).find('.item.active');
    var indx=$(current).index();
    if((indx+2)>$('.carousel-indicators li').length)
        indx=-1
     if(!handled)
     {
        $('.carousel-indicators li').removeClass('active')
        $('.carousel-indicators li:nth-child('+(indx+2)+')').addClass('active');
     }
     else
     {
        handled=!handled;//if handled=true make it back to false to work normally.
     }
});

$(".carousel-indicators li").on('click',function(){
   //Click event for indicators
   $(this).addClass('active').siblings().removeClass('active');
   //remove siblings active class and add it to current clicked item
   handled=true; //set global variable to true to identify whether indicator changing was handled or not.
});

原文地址：https://www.jb51.cc/jquery/177599.html