有啥方法可以停止引导轮播幻灯片的自动播放？
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【中文标题】有啥方法可以停止引导轮播幻灯片的自动播放？【英文标题】：Is there any way to stop auto-playing of bootstrap carousel slide?有什么方法可以停止引导轮播幻灯片的自动播放？ 【发布时间】：2021-07-02 02:13:02 【问题描述】：我正在使用 Bootstrap 轮播制作轮播幻灯片。我想停止幻灯片的自动播放，我想制作一个按钮，用于控制自动播放的开/关。
我已经搜索过它，它建议我为轮播div 添加属性data-interval=false 或添加脚本：$('.carousel').carousel( interval: false, )。
当上述值设置为默认值时，它会停止自动播放，但是当我想打开/关闭自动播放时，它不起作用并继续自动播放。
这是我目前的脚本：
var total = $('.carousel-item').length;
var currentIndex = $('div.active').index() + 1;
$('.current_slide').html(currentIndex + ' / ' + total);
$('.carousel').on('slid.bs.carousel', function()
currentIndex = $('div.active').index() + 1;
var text = currentIndex + ' / ' + total;
$('.current_slide').html(text);
);
function navAutoplay()
if ($('.if_paused').hasClass('carousel_now'))
$('*.carousel_now').removeClass('carousel_now');
$('.if_started').addClass('carousel_now');
else
$('*.carousel_now').removeClass('carousel_now');
$('.if_paused').addClass('carousel_now');
$(document).ready(function()
if ($('.if_started').hasClass('carousel_now'))
$('.carousel').carousel(
interval: 7000
);
else
$('.carousel').carousel(
interval: false
);
)
html代码：
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div id="carouselExampleFade" data-interval="7000" class="carousel slide carousel-fade" data-ride="carousel">
<div class="carousel-inner">
<div class="carousel-item active">
<img src="https://p.bigstockphoto.com/GeFvQkBbSLaMdpKXF1Zv_bigstock-Aerial-View-Of-Blue-Lakes-And--227291596.jpg" class="d-block w-100" >
</div>
<div class="carousel-item">
<img src="https://p.bigstockphoto.com/GeFvQkBbSLaMdpKXF1Zv_bigstock-Aerial-View-Of-Blue-Lakes-And--227291596.jpg" class="d-block w-100" >
</div>
</div>
<div class="carousel_nav">
<div class="current_slide">
</div>
<a class="carousel-control-prev" href="#carouselExampleFade" role="button" data-slide="prev">
<span class="carousel-control-prev-icon" aria-hidden="true"></span>
<span class="sr-only">Previous</span>
</a>
<div class="corousel_nav_autoplay">
<a class="if_paused">
<span onclick="navAutoplay()"></span>
</a>
<a class="if_started carousel_now">
<span onclick="navAutoplay()"></span>
</a>
</div>
<a class="carousel-control-next" href="#carouselExampleFade" role="button" data-slide="next">
<span class="carousel-control-next-icon" aria-hidden="true"></span>
<span class="sr-only">Next</span>
</a>
</div>
</div>
<div id="carouselExampleFade" data-interval="7000" class="carousel slide carousel-fade" data-ride="carousel">
<div class="carousel-inner">
<div class="carousel-item active">
<img src="img/slide01_01.png" class="d-block w-100" >
</div>
<div class="carousel-item">
<img src="img/slide02_01.png" class="d-block w-100" >
</div>
</div>
<div class="carousel_nav">
<div class="current_slide">
</div>
<a class="carousel-control-prev" href="#carouselExampleFade" role="button" data-slide="prev">
<span class="carousel-control-prev-icon" aria-hidden="true"></span>
<span class="sr-only">Previous</span>
</a>
<div class="corousel_nav_autoplay">
<a class="if_paused">
<span onclick="navAutoplay()"></span>
</a>
<a class="if_started carousel_now">
<span onclick="navAutoplay()"></span>
</a>
</div>
<a class="carousel-control-next" href="#carouselExampleFade" role="button" data-slide="next">
<span class="carousel-control-next-icon" aria-hidden="true"></span>
<span class="sr-only">Next</span>
</a>
</div>
</div>
<script>
var total = $('.carousel-item').length;
var currentIndex = $('div.active').index() + 1;
$('.current_slide').html(currentIndex + ' / ' + total);
$('.carousel').on('slid.bs.carousel', function()
currentIndex = $('div.active').index() + 1;
var text = currentIndex + ' / ' + total;
$('.current_slide').html(text);
);
</script>
<script>
function navAutoplay()
if ($('.if_paused').hasClass('carousel_now'))
$('*.carousel_now').removeClass('carousel_now');
$('.if_started').addClass('carousel_now');
else
$('*.carousel_now').removeClass('carousel_now');
$('.if_paused').addClass('carousel_now');
$(document).ready(function()
if ($('.if_started').hasClass('carousel_now'))
$('.carousel').carousel(
interval: 7000
);
else
$('.carousel').carousel(
interval: false
);
)
</script>
【问题讨论】：
【参考方案1】：您好，根据文档，您应该能够使用这些方法切换轮播：
.carousel('cycle')
// to enable cycling
.carousel('pause')
// to stop cycling thru items
我认为，如果您使用选项对象调用 .carusel()，它会再次对其进行初始化，并且可能无法按您的预期工作
【讨论】：
【参考方案2】：您只需要从 bootstrap 中阅读文档，那里有文档记录。
这是一个关于如何实现它的示例。
function navAutoplay()
const isAutoPlayEnabled = $('#toggle-auto-play').text() === 'Pause';
if (isAutoPlayEnabled)
// Pause carousel if autoplay is enabled
$('#carouselExampleIndicators').carousel('pause');
$('#toggle-auto-play').text('Auto Play');
else
// Enable Auto Play if it's paused
$('#carouselExampleIndicators').carousel(
interval: 500, // Your choice of interval
);
$('#toggle-auto-play').text('Pause');
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Document</title>
<link
rel="stylesheet"
href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css"
integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm"
crossorigin="anonymous"
/>
<script
src="https://code.jquery.com/jquery-3.2.1.slim.min.js"
integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN"
crossorigin="anonymous"
></script>
<script
src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js"
integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q"
crossorigin="anonymous"
></script>
<script
src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js"
integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl"
crossorigin="anonymous"
></script>
</head>
<body>
<div
id="carouselExampleIndicators"
class="carousel slide"
data-ride="carousel"
>
<ol class="carousel-indicators">
<li
data-target="#carouselExampleIndicators"
data-slide-to="0"
class="active"
></li>
<li
data-target="#carouselExampleIndicators"
data-slide-to="1"
class=""
></li>
<li
data-target="#carouselExampleIndicators"
data-slide-to="2"
class=""
></li>
</ol>
<div class="carousel-inner">
<div class="carousel-item active">
<img
class="d-block w-100"
data-src="holder.js/800x400?auto=yes&bg=777&fg=555&text=First slide"
src="data:image/svg+xml;charset=UTF-8,%3Csvg%20width%3D%22800%22%20height%3D%22400%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%20800%20400%22%20preserveAspectRatio%3D%22none%22%3E%3Cdefs%3E%3Cstyle%20type%3D%22text%2Fcss%22%3E%23holder_178a69a8120%20text%20%7B%20fill%3A%23555%3Bfont-weight%3Anormal%3Bfont-family%3AHelvetica%2C%20monospace%3Bfont-size%3A40pt%20%7D%20%3C%2Fstyle%3E%3C%2Fdefs%3E%3Cg%20id%3D%22holder_178a69a8120%22%3E%3Crect%20width%3D%22800%22%20height%3D%22400%22%20fill%3D%22%23777%22%3E%3C%2Frect%3E%3Cg%3E%3Ctext%20x%3D%22285.9140625%22%20y%3D%22218.3%22%3EFirst%20slide%3C%2Ftext%3E%3C%2Fg%3E%3C%2Fg%3E%3C%2Fsvg%3E"
data-holder-rendered="true"
/>
</div>
<div class="carousel-item">
<img
class="d-block w-100"
data-src="holder.js/800x400?auto=yes&bg=666&fg=444&text=Second slide"
src="data:image/svg+xml;charset=UTF-8,%3Csvg%20width%3D%22800%22%20height%3D%22400%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%20800%20400%22%20preserveAspectRatio%3D%22none%22%3E%3Cdefs%3E%3Cstyle%20type%3D%22text%2Fcss%22%3E%23holder_178a69a8120%20text%20%7B%20fill%3A%23444%3Bfont-weight%3Anormal%3Bfont-family%3AHelvetica%2C%20monospace%3Bfont-size%3A40pt%20%7D%20%3C%2Fstyle%3E%3C%2Fdefs%3E%3Cg%20id%3D%22holder_178a69a8120%22%3E%3Crect%20width%3D%22800%22%20height%3D%22400%22%20fill%3D%22%23666%22%3E%3C%2Frect%3E%3Cg%3E%3Ctext%20x%3D%22247.3125%22%20y%3D%22218.3%22%3ESecond%20slide%3C%2Ftext%3E%3C%2Fg%3E%3C%2Fg%3E%3C%2Fsvg%3E"
data-holder-rendered="true"
/>
</div>
<div class="carousel-item">
<img
class="d-block w-100"
data-src="holder.js/800x400?auto=yes&bg=555&fg=333&text=Third slide"
src="data:image/svg+xml;charset=UTF-8,%3Csvg%20width%3D%22800%22%20height%3D%22400%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%20800%20400%22%20preserveAspectRatio%3D%22none%22%3E%3Cdefs%3E%3Cstyle%20type%3D%22text%2Fcss%22%3E%23holder_178a69a8120%20text%20%7B%20fill%3A%23333%3Bfont-weight%3Anormal%3Bfont-family%3AHelvetica%2C%20monospace%3Bfont-size%3A40pt%20%7D%20%3C%2Fstyle%3E%3C%2Fdefs%3E%3Cg%20id%3D%22holder_178a69a8120%22%3E%3Crect%20width%3D%22800%22%20height%3D%22400%22%20fill%3D%22%23555%22%3E%3C%2Frect%3E%3Cg%3E%3Ctext%20x%3D%22276.9921875%22%20y%3D%22218.3%22%3EThird%20slide%3C%2Ftext%3E%3C%2Fg%3E%3C%2Fg%3E%3C%2Fsvg%3E"
data-holder-rendered="true"
/>
</div>
</div>
<a
class="carousel-control-prev"
href="#carouselExampleIndicators"
role="button"
data-slide="prev"
>
<span class="carousel-control-prev-icon" aria-hidden="true"></span>
<span class="sr-only">Previous</span>
</a>
<a
class="carousel-control-next"
href="#carouselExampleIndicators"
role="button"
data-slide="next"
>
<span class="carousel-control-next-icon" aria-hidden="true"></span>
<span class="sr-only">Next</span>
</a>
</div>
<!-- Toggle button -->
<div>
<button id="toggle-auto-play" class="btn btn-primary" onclick="navAutoplay()">Pause</button>
</div>
</body>
</html>【讨论】：
【参考方案3】：我已经尝试过 .carousel('pause');和 .carousel('cycle');切换自动播放，但它不起作用。
function navAutoplay()
if ($('.if_paused').hasClass('carousel_now'))
$('*.carousel_now').removeClass('carousel_now');
$('.if_started').addClass('carousel_now');
$('.carousel').carousel('cycle');
else
$('*.carousel_now').removeClass('carousel_now');
$('.if_paused').addClass('carousel_now');
$('.carousel').carousel('pause');
【讨论】：
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