我想为我的 bootstrap 4 轮播上的每张幻灯片设置一个单独的数据间隔。我尝试了其他一些 javascript 片段,但它们似乎不适用于我的代码,例如 Bootstrap 4 Carousel-stack overflow
任何人都可以提出一些建议,我们将不胜感激。
#top-bootstrap-slider{
width: 80%;
margin: auto;
background: rgb(15,36,62);
color: white;
height: 30px;
margin-top: 0;
overflow: hidden;
font-size: 10px;
}
.carousel-item{
display: flex;
align-items: center;
height: 100%;
line-height: 3vw;
text-align: center;
width: 100%;
}
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js"></script>
<div id="top-bootstrap-slider" class="carousel slide" data-ride="carousel">
<div class="carousel-inner">
<div class="carousel-item active">
Testimonial 1
</div>
<div class="carousel-item">
Testimonial 2
</div>
<div class="carousel-item">
Testimonial 3
</div>
</div>
</div>
最佳答案
我已经根据 Zim 的回答做了一个实现:Bootstrap 4 Carousel: Individual data-interval on each slide ,它运行良好,除了轮播的起点(即第一张幻灯片在第一次迭代中使用默认间隔)。要使用此扩展,您必须添加 data-interval
属性到每个 carousel-item
在其上设置间隔的毫秒数。检查下一个示例:
$(document).ready(function()
{
// Extend the Bootstrap carousel implementation.
$.fn.carousel.Constructor.prototype.cycle = function (event)
{
if (!event)
this._isPaused = false;
if (this._interval)
{
clearInterval(this._interval);
this._interval = null;
}
if (this._config.interval && !this._isPaused)
{
var item = $('.carousel-item-next');
var newInterval = item.data('interval') || this._config.interval;
this._interval = setInterval(
(document.visibilityState ? this.nextWhenVisible : this.next).bind(this),
newInterval
);
}
};
});
#top-bootstrap-slider{
width: 80%;
margin: auto;
background: rgb(15,36,62);
color: white;
height: 30px;
margin-top: 0;
overflow: hidden;
font-size: 10px;
}
.carousel-item{
display: flex;
align-items: center;
height: 100%;
line-height: 3vw;
text-align: center;
width: 100%;
}
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js"></script>
<div id="top-bootstrap-slider" class="carousel slide" data-ride="carousel">
<div class="carousel-inner">
<div class="carousel-item active" data-interval="1000">
Testimonial 1
</div>
<div class="carousel-item" data-interval="2000">
Testimonial 2
</div>
<div class="carousel-item" data-interval="5000">
Testimonial 3
</div>
</div>
</div>
或者,如果前面的方法不起作用,您可以将代码包装在 <script>
中和 </script>
包含 Bootstrap 文件后的标记,如下所示:
#top-bootstrap-slider{
width: 80%;
margin: auto;
background: rgb(15,36,62);
color: white;
height: 30px;
margin-top: 0;
overflow: hidden;
font-size: 10px;
}
.carousel-item{
display: flex;
align-items: center;
height: 100%;
line-height: 3vw;
text-align: center;
width: 100%;
}
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js"></script>
<script>
$.fn.carousel.Constructor.prototype.cycle = function (event)
{
if (!event)
this._isPaused = false;
if (this._interval)
{
clearInterval(this._interval);
this._interval = null;
}
if (this._config.interval && !this._isPaused)
{
var item = $('.carousel-item-next');
var newInterval = item.data('interval') || this._config.interval;
this._interval = setInterval(
(document.visibilityState ? this.nextWhenVisible : this.next).bind(this),
newInterval
);
}
};
</script>
<div id="top-bootstrap-slider" class="carousel slide" data-ride="carousel">
<div class="carousel-inner">
<div class="carousel-item active" data-interval="1000">
Testimonial 1
</div>
<div class="carousel-item" data-interval="2000">
Testimonial 2
</div>
<div class="carousel-item" data-interval="5000">
Testimonial 3
</div>
</div>
</div>
更新以支持多个轮播
下一个示例展示了如何正确实现以支持多个轮播。基本上我们需要在选择 item
时使用下一行:
var item = $(this._element).find('.carousel-item-next');
#top-bootstrap-slider{
width: 80%;
margin: auto;
background: rgb(15,36,62);
color: white;
height: 30px;
margin-top: 0;
overflow: hidden;
font-size: 10px;
}
#top-bootstrap-slider2{
width: 80%;
margin: auto;
background: skyblue;
color: white;
height: 50px;
margin-top: 25px;
overflow: hidden;
font-size: 14px;
}
.carousel-item{
display: flex;
align-items: center;
height: 100%;
line-height: 3vw;
text-align: center;
width: 100%;
}
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js"></script>
<script>
$.fn.carousel.Constructor.prototype.cycle = function (event)
{
if (!event)
this._isPaused = false;
if (this._interval)
{
clearInterval(this._interval);
this._interval = null;
}
if (this._config.interval && !this._isPaused)
{
// This next line does the trick.
var item = $(this._element).find('.carousel-item-next');
var newInterval = item.data('interval') || this._config.interval;
this._interval = setInterval(
(document.visibilityState ? this.nextWhenVisible : this.next).bind(this),
newInterval
);
}
};
</script>
<div id="top-bootstrap-slider" class="carousel slide" data-ride="carousel">
<div class="carousel-inner">
<div class="carousel-item active" data-interval="1000">
Testimonial 1
</div>
<div class="carousel-item" data-interval="2000">
Testimonial 2
</div>
<div class="carousel-item" data-interval="5000">
Testimonial 3
</div>
</div>
</div>
<div id="top-bootstrap-slider2" class="carousel slide" data-ride="carousel">
<div class="carousel-inner">
<div class="carousel-item active" data-interval="3000">
Testimonial 4
</div>
<div class="carousel-item" data-interval="1000">
Testimonial 5
</div>
<div class="carousel-item" data-interval="1000">
Testimonial 6
</div>
</div>
</div>
关于javascript - 个人数据间隔 bootstrap carousel 4,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/53635583/