这里是初学者:) 我知道有人问过它,但是我找不到解决方案。我有两个自动幻灯片放映在一页上一个在另一个下面进行。它们都可以工作,但是工作却很糟糕,时间安排不如预期,也没有达到应有的循环。但是-如果我在页面中仅保留一个幻灯片放映,则效果很好。我已经为之奋斗了几个小时。
这是我的html:
<div class= "gallry">
<ul id="slides" dir="rtl" onclick="nextSlide">
<li class="slide showing"> <img id="firstImg" src=".img.jpg"> </li>
<li class="slide"> <img src=".img1.jpg"></li>
<li class="slide"><img src=".img2.jpg"></li>
</ul>
</div>
<div class="gallery">
<ul id="slides2" dir="rtl">
<li class="slidetwo showing"> <img id="firstImg2" src=".img3.jpg"></li>
<li class="slidetwo"><img src=".img4.jpg"></li>
<li class="slidetwo"><img src=".img5.jpg"></li>
</ul>
</div>
这是我的CSS
#slides {
position: relative;
height: 100%;
padding: 0;
margin:0;
list-style-type: none;
}
#slides2 {
position: relative;
height: 100%;
padding: 0;
margin:0;
list-style-type: none;
}
.slide {
position: absolute;
left: 0px;
top: 0px;
width: 100%;
height: 100%;
opacity: 0;
z-index: 1;
-webkit-transition: opacity 1s;
-moz-transition: opacity 1s;
-o-transition: opacity 1s;
transition: opacity 1s;
}
.slidetwo {
position: absolute;
left: 0px;
top: 0px;
width: 100%;
height: 100%;
opacity: 0;
z-index: 1;
-webkit-transition: opacity 1s;
-moz-transition: opacity 1s;
-o-transition: opacity 1s;
transition: opacity 1s;
}
img {
max-height: 95vh;
max-width: calc(100vw - 80px);
}
.showing {
opacity: 1;
z-index: 2;
}
这是我的javascript:
var slides = document.querySelectorAll('#slides .slide');
var currentSlide = 0;
var slideInterval = setInterval(nextSlide,3000);
function nextSlide() {
slides[currentSlide].className = 'slide';
currentSlide = (currentSlide+1)%slides.length;
slides[currentSlide].className = 'slide showing';
}
var slides2 = document.querySelectorAll('#slides2 .slidetwo');
var currentSlide = 0;
var slideInterval = setInterval(nextSlideTwo,1000);
function nextSlideTwo() {
slides2[currentSlide].className = 'slidetwo';
currentSlide = (currentSlide+1)%slides2.length;
slides2[currentSlide].className = 'slidetwo showing';
}
非常感谢!
答案 0 :(得分:1)
因此,我首先看到的是您正在尝试将相同的全局变量用于两个幻灯片。发生的事情是,当setInterval()
中的这两个调用都在运行时,它们都在寻址相同的变量,这将导致图像显示混乱,时序问题以及其他类似情况。
我建议尝试的方法是尝试将变量分开,以便nextSlide()
和nextSlideTwo()
在运行时处理和更新不同的事物。例如:
var slides = document.querySelectorAll('#slides .slide');
var currentSlide = 0;
var slideInterval = setInterval(nextSlide,3000);
function nextSlide() {
slides[currentSlide].className = 'slide';
currentSlide = (currentSlide+1)%slides.length;
slides[currentSlide].className = 'slide showing';
}
var slides2 = document.querySelectorAll('#slides2 .slidetwo');
var currentSlide2 = 0;
var slideInterval2 = setInterval(nextSlideTwo,1000);
function nextSlideTwo() {
slides2[currentSlide2].className = 'slidetwo';
currentSlide2 = (currentSlide2+1)%slides2.length;
slides2[currentSlide2].className = 'slidetwo showing';
}
很快就会把它扔进小提琴中,以查看其运行方式以及是否需要任何其他调整。