jquery - How to make Bootstrap carousel slider use mobile left/right swipe

Question

DEMO JSSFIDDLE

  <div class="col-md-4">
          <!--Carousel-->
          <div id="sidebar-carousel-1" class="carousel slide" data-ride="carousel">
            <ol class="carousel-indicators grey">
              <li data-target="#sidebar-carousel-1" data-slide-to="0" class="active"></li>
              <li data-target="#sidebar-carousel-1" data-slide-to="1"></li>
              <li data-target="#sidebar-carousel-1" data-slide-to="2"></li>
            </ol>
            <div class="carousel-inner">
              <div class="item active">
                <a href="" data-lightbox="image-1" title="">
                <img src="http://shrani.si/f/3D/13b/1rt3lPab/2/img1.jpg" alt="...">
                </a>
              </div>
              <div class="item">
                <a href="" data-lightbox="image-1" title="">
                <img src="http://shrani.si/f/S/jE/UcTuhZ6/1/img2.jpg" alt="...">
                </a>                  </div>
              <div class="item">
                <a href="" data-lightbox="image-1" title="">
                <img src="http://shrani.si/f/h/To/1yjUEZbP/img3.jpg" alt="...">
                </a>                  </div>
            </div>
             <!-- Controls -->
        <a class="left carousel-control" href="#sidebar-carousel-1" data-slide="prev">
          <span class="glyphicon glyphicon-chevron-left"></span>
        </a>
        <a class="right carousel-control" href="#sidebar-carousel-1" data-slide="next">
          <span class="glyphicon glyphicon-chevron-right"></span>
        </a>
                  </div><!--/Carousel--></div>

What I want to do is to add left/right touch swipe functionality for mobile devices only. How can I do that?

Also, how do I make prev/next buttons, that appear on hover, smaller for mobile/ipad versions?

Thanks

Answer 1

I'm a bit late to the party, but here's a bit of jQuery I've been using:

$('.carousel').on('touchstart', function(event){
    const xClick = event.originalEvent.touches[0].pageX;
    $(this).one('touchmove', function(event){
        const xMove = event.originalEvent.touches[0].pageX;
        const sensitivityInPx = 5;

        if( Math.floor(xClick - xMove) > sensitivityInPx ){
            $(this).carousel('next');
        }
        else if( Math.floor(xClick - xMove) < -sensitivityInPx ){
            $(this).carousel('prev');
        }
    });
    $(this).on('touchend', function(){
        $(this).off('touchmove');
    });
});

No need for jQuery mobile or any other plugins. If you need to adjust the sensitivity of the swipe adjust the 5 and -5. Hope this helps someone.