Cara Membuat: Slideshow

Belajar cara membuat slideshow yang responsif menggunakan CSS dan JavaScript.

Buat slideshow

Langkah Pertama - Tambahkan HTML:

<!-- Kontainer slideshow -->
<div class="slideshow-container">
  <!-- Gambar lebar penuh dengan angka dan teks judul -->
  <div class="mySlides fade">
    <div class="numbertext">1 / 3</div>
    <img src="img1.jpg" style="width:100%">
    <div class="text">Keterangan Teks</div>
  </div>
  <div class="mySlides fade">
    <div class="numbertext">2 / 3</div>
    <img src="img2.jpg" style="width:100%">
    <div class="text">Keterangan Dua</div>
  </div>
  <div class="mySlides fade">
    <div class="numbertext">3 / 3</div>
    <img src="img3.jpg" style="width:100%">
    <div class="text">Keterangan Tiga</div>
  </div>
  <!-- 下一个和上一个按钮 -->
  <a class="prev" onclick="plusSlides(-1)">❮</a>
  <a class="next" onclick="plusSlides(1)">❯</a>
</div>
<br>
<!-- 圆点 -->
<div style="text-align:center">
  <span class="dot" onclick="currentSlide(1)"></span>
  <span class="dot" onclick="currentSlide(2)"></span>
  <span class="dot" onclick="currentSlide(3)"></span>
</div>

第二步 - 添加 CSS：

设置下一个和上一个按钮、标题文本和圆点的样式：

* {box-sizing:border-box}
/* 幻灯片容器 */
.slideshow-container {
  max-width: 1000px;
  position: relative;
  margin: auto;
}
/* 默认隐藏图像 */
.mySlides {
  display: none;
}
/* 下一个和上一个按钮 */
.prev, .next {
  cursor: pointer;
  position: absolute;
  top: 50%;
  width: auto;
  margin-top: -22px;
  padding: 16px;
  color: white;
  font-weight: bold;
  font-size: 18px;
  transition: 0.6s ease;
  border-radius: 0 3px 3px 0;
  user-select: none;
}
/* 将“下一步按钮”置于右侧 */
.next {
  right: 0;
  border-radius: 3px 0 0 3px;
}
/* 鼠标悬停时，添加带有一点透明的黑色背景色 */
.prev:hover, .next:hover {
  background-color: rgba(0,0,0,0.8);
}
/* 标题文本 */
.text {
  color: #f2f2f2;
  font-size: 15px;
  padding: 8px 12px;
  position: absolute;
  bottom: 8px;
  width: 100%;
  text-align: center;
}
/* 数字文本 (1/3 等) */
.numbertext {
  color: #f2f2f2;
  font-size: 12px;
  padding: 8px 12px;
  position: absolute;
  top: 0;
}
/* 圆点/子弹/指示器 */
.dot {
  cursor: pointer;
  height: 15px;
  width: 15px;
  margin: 0 2px;
  background-color: #bbb;
  border-radius: 50%;
  display: inline-block;
  transition: background-color 0.6s ease;
}
.active, .dot:hover {
  background-color: #717171;
}
/* 渐隐动画 */
.fade {
  animation-name: fade;
  animation-duration: 1.5s;
}
@keyframes fade {
  from {opacity: .4}
  to {opacity: 1}
}

Ketiga - Tambahkan JavaScript:

let slideIndex = 1;
showSlides(slideIndex);
// 下一个/上一个控件
function plusSlides(n) {
  showSlides(slideIndex += n);
}
// 缩略图控件
function currentSlide(n) {
  showSlides(slideIndex = n);
}
function showSlides(n) {
  let i;
  let slides = document.getElementsByClassName("mySlides");
  let dots = document.getElementsByClassName("dot");
  if (n > slides.length) {slideIndex = 1}
  if (n < 1) {slideIndex = slides.length}
  for (i = 0; i < slides.length; i++) {
    slides[i].style.display = "none";
  }
  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";
}

Coba Sendiri

Presentasi Slider Otomatis

Untuk menampilkan presentasi slider otomatis, gunakan kode berikut:

let slideIndex = 0;
showSlides();
function showSlides() {
  let i;
  let slides = document.getElementsByClassName("mySlides");
  for (i = 0; i < slides.length; i++) {
    slides[i].style.display = "none";
  }
  slideIndex++;
  if (slideIndex > slides.length) {slideIndex = 1}
  slides[slideIndex-1].style.display = "block";
  setTimeout(showSlides, 2000); // Mengganti gambar setiap 2 detik
}

Coba Sendiri

Perjelajahan Presentasi Banyak Slайдer

let slideIndex = [1,1];
/* Menetapkan class CSS yang berbeda untuk setiap anggota grup halaman slider. */
let slideId = ["mySlides1", "mySlides2"]
showSlides(1, 0);
showSlides(1, 1);
function plusSlides(n, no) {
  showSlides(slideIndex[no] += n, no);
}
function showSlides(n, no) {
  let i;
  let x = document.getElementsByClassName(slideId[no]);
  if (n > x.length) {slideIndex[no] = 1}
  if (n < 1) {slideIndex[no] = x.length}
  for (i = 0; i < x.length; i++) {
    x[i].style.display = "none";
  }
  x[slideIndex[no]-1].style.display = "block";
}

Coba Sendiri

Halaman Berhubungan

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