[英]Image Slider Javascript won't work
我目前正在為公司新主頁使用圖像滑塊,只是無法弄清似乎在javascript部分中的錯誤。該滑塊包含4張圖像,一旦到達最后一張圖像,再次從第一張圖片開始。 問題是圖像以“ 1-2-1-2-3-4-1-2-3-4 ...”的順序顯示
這里的代碼:
$('.slide').first().addClass('active');
$('.slide').hide();
$('.active').show();
$('#next').on('click', nextSlide);
$('#prev').on('click', prevSlide);
// Auto slider
if (options.autoswitch === true) {
setInterval(nextSlide, options.autoswitch_speed);
}
function nextSlide() {
$('.active').removeClass('active').addClass('prevActive');
if ($('.prevActive').is(':last-child')) {
$('.slide').first().addClass('active');
} else {
$('.prevActive').next().addClass('active');
}
$('.prevActive').removeClass('prevActive');
$('.slide').fadeOut(options.speed);
$('.active').fadeIn(options.speed);
}
function prevSlide() {
$('.active').removeClass('active').addClass('prevActive');
if ($('.prevActive').is(':first-child')) {
$('.slide').last().addClass('active');
} else {
$('.prevActive').prev().addClass('active');
}
$('.prevActive').removeClass('prevActive');
$('.slide').fadeOut(options.speed);
$('.active').fadeIn(options.speed);
}
});
和相應的CSS:
#slider-container {
height: 600px;
margin: 0 auto;
max-width: 100%;
overflow: hidden;
position: relative;
width: 800px;
}
#sldier {
height: 100%;
width: 100%;
}
#slider .slide img {
height: 100%;
width: auto;
}
#prev, #next {
cursor: pointer;
max-width: 30px;
opacity: 1;
position: absolute;
top: 8%;
-webkit-transition: opacity 0.2s linear;
-moz-transition: opacity 0.2s linear;
-o-transition: opacity 0.2s linear;
transition: opacity 0.2s linear;
z-index: 999;
}
#prev { left: 12px; }
#next { right: 3px; }
#slider-container:hover #prev, #slider-container:hover #next { opacity: .7; }
.slide {
position: absolute;
width: 100%;
}
.slide-copy {
background: #777;
background: rgba(0, 0, 0, .5);
bottom: 0;
color: #fff;
left: 0;
padding: 20px;
position: absolute;
}
@media (min-width: 600px) {
#prev, #next {
top: 45%;
}
}
和HTML
<div id="slider-container">
<img src="img/arrowprev" id="prev" alt="prev">
<ul id="slider">
<li class="slide">
<div class="slide-copy">
<h2>Placeholder</h2>
<p>Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat.</p>
</div>
<img src="img/placeholder" alt="placeholder">
</li>
<li class="slide">
<div class="slide-copy">
<h2>Placeholder2</h2>
<p>Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat.</p>
</div>
<img src="img/placeholder" alt="placeholder">
</li>
<li class="slide">
<div class="slide-copy">
<h2>Placeholder3</h2>
<p>Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat.</p>
</div>
<img src="img/placeholder" alt="placeholder">
</li>
<li class="slide">
<div class="slide-copy">
<h2>Placeholder4</h2>
<p>Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat.</p>
</div>
<img src="img/placeholder" alt="placeholder">
</li>
</ul>
<img src="img/arrownext" id="next" alt="next">
</div>
也許與它有關
if ($('.prevActive').is(':first-child')) {
$('.slide').last().addClass('active');
我只是想不出問題,將不勝感激。 先感謝您 :)
這是我作為來源的頁面: https : //www.jqueryscript.net/slider/Tiny-jQuery-Image-Slider-Slideshow-With-Caption-Support.html
我發現失敗是不起作用的,這是它無法正常工作的獨特之處,是將可見性應用於每個next / prev操作上的每個prevActive
和active
元素,因此我在這兩個函數中都添加了以下代碼行:
$('.prevActive').hide();
$('.active').show();
(此外,我已經注釋了引用options變量的行,這在描述中未定義)。
您可以在這里看到小提琴在工作: https : //jsfiddle.net/a4bssrf5/8/
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