Bootstrap轮播一键移动单项答案

【问题标题】：Bootstrap carousel move single item in one clickBootstrap轮播一键移动单项
【发布时间】：2019-07-02 01:31:02
【问题描述】：

我有这个轮播

$('#myCarousel').carousel({
  interval: 4000
})

$('.carousel .item').each(function(){
  var next = $(this).next();
  if (!next.length) {
    next = $(this).siblings(':first');
  }
  next.children(':first-child').clone().appendTo($(this));

  for (var i=0;i<2;i++) {
    next=next.next();
    if (!next.length) {
      next = $(this).siblings(':first');
    }

    next.children(':first-child').clone().appendTo($(this));
  }
});

.carousel-inner .active.left { left: -25%; }
.carousel-inner .next        { left:  25%; }
.carousel-inner .prev		 { left: -25%; }
.carousel-control 			 { width:  4%; }
.carousel-control.left,.carousel-control.right {margin-left:15px;background-image:none;}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.2/jquery.min.js"></script>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet"/>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
<div class="col-md-12 text-center"><h3>Bootstrap 3 Multiple Slide Carousel</h3></div>
<div class="col-md-6 col-md-offset-3">
  <div class="carousel slide" id="myCarousel">
    <div class="carousel-inner">
      <div class="item active">
        <div class="col-xs-3"><a href="#"><img src="http://placehold.it/500/e499e4/fff&amp;text=1" class="img-responsive"></a></div>
      </div>
      <div class="item">
        <div class="col-xs-3"><a href="#"><img src="http://placehold.it/500/e477e4/fff&amp;text=2" class="img-responsive"></a></div>
      </div>
      <div class="item">
        <div class="col-xs-3"><a href="#"><img src="http://placehold.it/500/eeeeee&amp;text=3" class="img-responsive"></a></div>
      </div>
      <div class="item">
        <div class="col-xs-3"><a href="#"><img src="http://placehold.it/500/f4f4f4&amp;text=4" class="img-responsive"></a></div>
      </div>
      <div class="item">
        <div class="col-xs-3"><a href="#"><img src="http://placehold.it/500/f566f5/333&amp;text=5" class="img-responsive"></a></div>
      </div>
      <div class="item">
        <div class="col-xs-3"><a href="#"><img src="http://placehold.it/500/f477f4/fff&amp;text=6" class="img-responsive"></a></div>
      </div>
      <div class="item">
        <div class="col-xs-3"><a href="#"><img src="http://placehold.it/500/eeeeee&amp;text=7" class="img-responsive"></a></div>
      </div>
      <div class="item">
        <div class="col-xs-3"><a href="#"><img src="http://placehold.it/500/fcfcfc/333&amp;text=8" class="img-responsive"></a></div>
      </div>
    </div>
    <a class="left carousel-control" href="#myCarousel" data-slide="prev"><i class="glyphicon glyphicon-chevron-left"></i></a>
    <a class="right carousel-control" href="#myCarousel" data-slide="next"><i class="glyphicon glyphicon-chevron-right"></i></a>
  </div>
</div>

https://jsfiddle.net/r5twtm22/

这工作正常。

我只需要一次移动单个图像。它移动了所有 4 个图像..

【问题讨论】：

你是什么意思？你只想显示一张图片？因为如果你移动一个，你就必须移动其余的......
@Håkan 实际上当前整行都在移动就像显示 1,2,3,4 一样，next() 将首先向左移动 1,2,3,4，然后是新的 2,3， 4,5会出现..对。我需要移动，如果显示 1,2,3,4，next() 会将 1 移出可见部分并在后面添加 5。
不一样吗？
你可以在pen看到类似你的东西
@MoshFeu 也尝试过使用它...但是，在系统或新小提琴中，同样的事情会发生，，首先它移动所有 4，然后一个新行带有 2,3,4,5数据。可能的原因是什么？

标签： jquery css twitter-bootstrap

【解决方案1】：

由于某种原因，sn-p 没有显示确切的结果。请检查小提琴

FIDDLE（干净且工作的版本）

$('#myCarousel').carousel({
  interval: 10000
})

$('.carousel .item').each(function(){
  var next = $(this).next();
  if (!next.length) {
    next = $(this).siblings(':first');
  }
  next.children(':first-child').clone().appendTo($(this));
  
  if (next.next().length>0) {
    next.next().children(':first-child').clone().appendTo($(this));
  }
  else {
  	$(this).siblings(':first').children(':first-child').clone().appendTo($(this));
  }
});

#myCarousel .carousel-inner .active.left {
  left: -33%;
}
#myCarousel .carousel-inner .active.right {
  left: 33%;
}
#myCarousel .carousel-inner .next {
  left: 33%;
}
#myCarousel .carousel-inner .prev {
  left: -33%;
}
#myCarousel .carousel-control.left {
  background-image: none;
}
#myCarousel .carousel-control.right {
  background-image: none;
}
#myCarousel .carousel-inner .item {
  background: white;
  transition: all ease .5s;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.2/jquery.min.js"></script>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet" />
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
<div id="myCarousel" class="carousel slide">

  <div class="carousel-inner">
    <div class="item active">
      <div class="col-xs-4">
        <a href="#">
          <img src="http://placehold.it/500/bbbbbb/fff&amp;text=1" class="img-responsive">
        </a>
      </div>
    </div>
    <div class="item">
      <div class="col-xs-4">
        <a href="#">
          <img src="http://placehold.it/500/CCCCCC&amp;text=2" class="img-responsive">
        </a>
      </div>
    </div>
    <div class="item">
      <div class="col-xs-4">
        <a href="#">
          <img src="http://placehold.it/500/eeeeee&amp;text=3" class="img-responsive">
        </a>
      </div>
    </div>
    <div class="item">
      <div class="col-xs-4">
        <a href="#">
          <img src="http://placehold.it/500/f4f4f4&amp;text=4" class="img-responsive">
        </a>
      </div>
    </div>
    <div class="item">
      <div class="col-xs-4">
        <a href="#">
          <img src="http://placehold.it/500/fcfcfc/333&amp;text=5" class="img-responsive">
        </a>
      </div>
    </div>
    <div class="item">
      <div class="col-xs-4">
        <a href="#">
          <img src="http://placehold.it/500/f477f4/fff&amp;text=6" class="img-responsive">
        </a>
      </div>
    </div>
  </div>

  <!-- Controls -->
  <a class="left carousel-control" href="#myCarousel" role="button" data-slide="prev">
    <span class="glyphicon glyphicon-chevron-left" aria-hidden="true"></span>
    <span class="sr-only">Previous</span>
  </a>
  <a class="right carousel-control" href="#myCarousel" role="button" data-slide="next">
    <span class="glyphicon glyphicon-chevron-right" aria-hidden="true"></span>
    <span class="sr-only">Next</span>
  </a>
</div>

【讨论】：

我真的不认为这是他所期望的结果。为什么需要滑动所有元素？他只需要移动一个。
检查小提琴，它工作正常。我不知道为什么这个sn-p会发生这种奇怪的事情。 ://
它在滚动时对“项目”中的文本产生模糊效果。有什么办法可以避免文字变得模糊吗？我通过向“项目”添加白色背景部分解决了这个问题，这种方式不透明，所以你看不到第二行在后面滑动。有更好的主意吗？
由于 Bootstrap 版本 3.3.7，它在这里不起作用。如果您使用 Bootstrap 3.0.0 CSS，那么它将完美运行。

【解决方案2】：

工作Fiddle

我遇到了同样的问题，通过将这段代码添加到 css 中，我一次只能滑动一个项目：

#myCarousel .carousel-inner .item {
  background: white;
  /*transition: transform;*/
  transition: all 500ms ease-out; /* transition is added here */
}

试试这个： JS：

$('#myCarousel').carousel({
  interval: 4000
})

$('.carousel .item').each(function(){
  var next = $(this).next();
  if (!next.length) {
    next = $(this).siblings(':first');
  }
  next.children(':first-child').clone().appendTo($(this));

  for (var i=0;i<2;i++) {
    next=next.next();
    if (!next.length) {
      next = $(this).siblings(':first');
    }

    next.children(':first-child').clone().appendTo($(this));
  }
});

CSS：

.carousel-inner .active.left { left: -25%; }
.carousel-inner .next        { left:  25%; }
.carousel-inner .prev        { left: -25%; }
.carousel-control            { width:  4%; }
.carousel-control.left,.carousel-control.right {margin-left:15px;background-image:none;}

#myCarousel .carousel-inner .item {
  background: white;
  /*transition: transform;*/
  transition: all 500ms ease-out; /* transition is added here */
}

HTML：

<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title></title>
    <link rel="stylesheet" href="bootstrapCarousel.css">
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
    <!-- <script type="text/javascript" src="http://twitter.github.io/bootstrap/assets/js/bootstrap-transition.js"></script>
    <script type="text/javascript" src="http://twitter.github.io/bootstrap/assets/js/bootstrap-carousel.js"></script> -->
  </head>
  <body>
  <div class="col-md-12 text-center"><h3>Product Carousel</h3></div>

<div class="col-md-6 col-md-offset-3">
<div class="carousel slide row" data-ride="carousel" data-type="multi" data-interval="3000" id="myCarousel">
  <div class="carousel-inner">
    <div class="item active">
      <div class="col-md-3 col-sm-6 col-xs-12"><a href="#"><img src="http://placehold.it/500/e499e4/fff&amp;text=1" class="img-responsive" /></a></div>
    </div>
    <div class="item">
      <div class="col-md-3 col-sm-6 col-xs-12"><a href="#"><img src="http://placehold.it/500/e477e4/fff&amp;text=2" class="img-responsive" /></a></div>
    </div>
    <div class="item">
      <div class="col-md-3 col-sm-6 col-xs-12"><a href="#"><img src="http://placehold.it/500/eeeeee&amp;text=3" class="img-responsive" /></a></div>
    </div>
    <div class="item">
      <div class="col-md-3 col-sm-6 col-xs-12"><a href="#"><img src="http://placehold.it/500/f4f4f4&amp;text=4" class="img-responsive" /></a></div>
    </div>
    <div class="item">
      <div class="col-md-3 col-sm-6 col-xs-12"><a href="#"><img src="http://placehold.it/500/f566f5/333&amp;text=5" class="img-responsive" /></a></div>
    </div>
    <div class="item">
      <div class="col-md-3 col-sm-6 col-xs-12"><a href="#"><img src="http://placehold.it/500/f477f4/fff&amp;text=6" class="img-responsive" /></a></div>
    </div>
    <div class="item">
      <div class="col-md-3 col-sm-6 col-xs-12"><a href="#"><img src="http://placehold.it/500/eeeeee&amp;text=7" class="img-responsive" /></a></div>
    </div>
    <div class="item">
      <div class="col-md-3 col-sm-6 col-xs-12"><a href="#"><img src="http://placehold.it/500/fcfcfc/333&amp;text=8" class="img-responsive" /></a></div>
    </div>
  </div>
  <a class="left carousel-control" href="#myCarousel" data-slide="prev"><i class="glyphicon glyphicon-chevron-left"></i></a>
  <a class="right carousel-control" href="#myCarousel" data-slide="next"><i class="glyphicon glyphicon-chevron-right"></i></a>
</div>
</div>

<script src="https://code.jquery.com/jquery-2.0.2.min.js" type="text/javascript"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.1.0/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script>
<script type="text/javascript" src="bootstrapCarousel.js">
</script>
</body>
</html>

您还可以通过将 transition: all 500ms ease-out; 添加到您的 css 来使过渡更平滑。

在这里提琴：http://jsfiddle.net/eaae76kx/98/

【讨论】：

你有没有用过渡更新过这个？希望看到它添加到您的答案中以使其更流畅。
你可以在 css 中添加 ``` transition: all 500ms ease-out;``` 到 #myCarousel .carousel-inner .item 。我已经更新了我的答案。你也可以在这里查看 Fiddle：jsfiddle.net/eaae76kx/98