'Dynamically load images from folder for slideshow
my task is to create a webpage containing a slideshow, dynamically getting the displayed images from a folder. For the slideshow I used this "tutorial": https://www.w3schools.com/howto/howto_js_slideshow.asp. I did some modifications based on my needs - works like a charm. The only open task is the part with the dynamic loading of the images. I need every image in a folder to be added to the body, so my js includes the image to the slideshow. Additionally, for every image I want to add another "bullet point", which indicates the current position.
HTML
<!DOCTYPE html>
<html>
<head>
<title>Slideshow</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<!--Linking CSS-->
<link rel="stylesheet" href="style.css"/>
</head>
<body>
<div class="mySlides fade">
<img src="images/rick.jpg" style="width:100%">
</div>
<div class="mySlides fade">
<img src="images/rick2.png" style="width:100%">
</div>
<div class="mySlides fade">
<img src="images/rick3.jpg" style="width:100%">
</div>
<div class="mySlides fade">
<img src="images/rick4.jpg" style="width:100%">
</div>
<div class="mySlides fade">
<img src="images/rick6.jpg" style="width:100%">
</div>
</div>
<div style="text-align:center">
<span class="dot"></span>
<span class="dot"></span>
<span class="dot"></span>
<span class="dot"></span>
<span class="dot"></span>
</div>
<!--Linking JS-->
<script src="script.js"></script>
</body>
</html>
CSS
* {box-sizing: border-box;}
* {margin: 0; padding: 0;}
body {
overflow: hidden; /* hiding scrollbars */
font-family: Verdana, sans-serif;
}
img {vertical-align: middle;}
.mySlides {
background-size: cover;
background-repeat: no-repeat;
height: 100vh;
}
/* The dots/bullets/indicators */
.dot {
height: 15px;
width: 15px;
margin: 0 2px; /* distance between dots */
background-color: #bbb; /* maybe change to RS */
display: inline-block; /* inline-block */
position: relative; top:-70px;
border-radius: 50%;
transition: background-color 0.6s ease;
}
.active {
background-color: #717171;
}
/* Fading animation */
.fade {
animation-name: fade;
animation-duration: 1.5s;
}
@keyframes fade {
from {opacity: .4}
to {opacity: 1}
}
/* On smaller screens, decrease text size */
@media only screen and (max-width: 300px) {
.text {font-size: 11px}
}
JAVASCRIPT
let slideIndex = 0;
showSlides();
//Function to make automatic slideshow
function showSlides() {
let i;
let slides = document.getElementsByClassName("mySlides");
let dots = document.getElementsByClassName("dot");
for (i = 0; i < slides.length; i++) {
slides[i].style.display = "none";
}
slideIndex++;
if (slideIndex > slides.length) {slideIndex = 1}
for (i = 0; i < dots.length; i++) {
dots[i].className = dots[i].className.replace(" active", "");
}
slides[slideIndex-1].style.display = "block";
dots[slideIndex-1].className += " active";
setTimeout(showSlides, 20000); // Change image every 2 seconds
}
The goal is to have a running webpage with the slideshow, so when a person adds a new image to the images folder, I do not have to add another
<div class="mySlides fade">
<img src="images/image.xy" style="width:100%">
</div>
and another
<span class="dot"></span>
into the
<div style="text-align:center"> </div>
Any help to achieve this is highly appreciated. Thank you!
Sources
This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.
Source: Stack Overflow
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