图像滑块:保持所有图像的相同高度,同时保持滑块响应

Question

在我的JS图像滑块(Owl-Carousel)中,图像具有不同的尺寸:

http://goo.gl/KmpX2P

您可以看到图像高度在旋转木马内变化.如何在保持旋转木马响应的同时使其保持恒定？我需要图像一直填充滑块空间,因此有些必须通过CSS以某种方式裁剪.期望的结果如下所示:

Answer 1

它可以在css中指定.

例,

http://jsfiddle.net/AwBLL/2/

.owl-carousel .owl-item{
    height:285px;
    width:100%;
}

编辑 以下解决方案使用插件的回调事件根据最小图像高度修改视口的/包装器的高度.

http://jsfiddle.net/DNMpF/1/

JS

$(document).ready(function () {

    $("#owl-example").owlCarousel({
        afterUpdate: function () {
            updateSize();
        },
        afterInit:function(){
            updateSize();
        }
    });
    function updateSize(){
        var minHeight=parseInt($('.owl-item').eq(0).css('height'));
        $('.owl-item').each(function () {
            var thisHeight = parseInt($(this).css('height'));
            minHeight=(minHeight<=thisHeight?minHeight:thisHeight);
        });
        $('.owl-wrapper-outer').css('height',minHeight+'px');
    }
});

CSS

.owl-carousel .owl-item img {
    height:auto;
    width:100%;
    display: block;
}

.owl-carousel .item {
    margin:0px;
}

EDIT2

关于最新评论,为了显示大图像的底部部分,一种方法可以是迭代图像并添加等于隐藏的这些图像部分的负上边距.

function updateSize(){
        var minHeight=parseInt($('.owl-item').eq(0).css('height'));
        $('.owl-item').each(function () {
            var thisHeight = parseInt($(this).css('height'));
            minHeight=(minHeight<=thisHeight?minHeight:thisHeight);
        });
        $('.owl-wrapper-outer').css('height',minHeight+'px');

        /*show the bottom part of the cropped images*/
        $('.owl-carousel .owl-item img').each(function(){
            var thisHeight = parseInt($(this).css('height'));
            if(thisHeight>minHeight){
                $(this).css('margin-top',-1*(thisHeight-minHeight)+'px');
            }
        });

    }

Answer 2

在http://jsfiddle.net/AwBLL/108/上以随机高度滑动

HTML：

<h2>Vertical align</h2>
<div class="owl-carousel bg-contain">
  <img src="http://lorempixel.com/234/100/technics/1/"  />
  <img src="http://lorempixel.com/234/400/technics/2/"  />
  <img src="http://lorempixel.com/234/200/technics/9/"  />
  <img src="http://lorempixel.com/234/150/technics/10/" />
</div>

<h2>Full Zoom small images</h2>
<div class="owl-carousel bg-cover">
  <img src="http://lorempixel.com/234/100/technics/1/"  />
  <img src="http://lorempixel.com/234/400/technics/2/"  />
  <img src="http://lorempixel.com/234/200/technics/9/"  />
  <img src="http://lorempixel.com/234/150/technics/10/" />
</div>

CSS：

.owl-wrapper-outer {
  border: 1px solid red;
  font: 0/0 a;
  line-height: 0;
}

.owl-carousel .owl-item {
  background-position: 50% 50%;
  background-repeat: no-repeat;
}
.bg-contain .owl-item { background-size: contain }
.bg-cover .owl-item { background-size: cover }

.owl-carousel .owl-item img {
  height: auto;
  width: 100%;
  visibility: hidden;
}

JS：

$(".owl-carousel").each(function () {
  var $this = $(this);

  $this.owlCarousel({
    afterUpdate: function () {
      updateSize($this);
    },
    afterInit: function () {
      updateSize($this);
    }
  });
});

function updateSize($carousel) {
  var maxHeight = 0;

  $('.owl-item', $carousel).each(function () {
    var $this = $(this);
    var $image = $this.find('img');

    //Max height
    var prevHeight = $this.height();
    var thisHeight = $this.height('auto').height();
    $this.height(prevHeight);
    maxHeight = (maxHeight > thisHeight ? maxHeight : thisHeight);

    //Set image as background
    var imageSource = $image.attr('src');
    $this.css('backgroundImage', 'url(' + imageSource + ')');
  });

  //Set equal height
  $('.owl-item', $carousel).height(maxHeight);
}