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javascript - HTML CSS JS 在整页中添加图像滑块

问题描述

极客！我有一个简单的问题要问你。我正在上学并创建一页网站。

如何将画廊添加到此代码？我想添加幻灯片图片库。例如到第 2 页，它通过在左侧和右侧窗口上制作简单的两个锚点来水平滚动。想要通过单击箭头而不是滚动来更改图像。向下滚动应该跳过画廊并显示第 3 页等。

我试图将两个 div 放入带有背景图像的页面部分，但它对我不起作用。即使我使用 z-index，图像也不会显示。你有什么解决办法吗？

const $body = (window.opera) ? (document.compatMode == "CSS1Compat" ? $('html') : $('body')) : $('html,body'),
      $section = $('section');

var numOfPages = $section.length - 1,
    curPage = 0,
    scrollLock = false;

function scrollPage() {
  
  $(document).on("mousewheel DOMMouseScroll", function(e) {
    if (scrollLock) return;
    if (e.originalEvent.wheelDelta > 0 || e.originalEvent.detail < 0)
      navigateUp();
    else
      navigateDown();
  });
  $(document).on("keydown", function(e) {
    if (scrollLock) return;
    if (e.which === 38)
      navigateUp();
    else if (e.which === 40)
      navigateDown();
  });
}

function pagination() {
  scrollLock = true;
  $body.stop().animate({
    scrollTop: $section.eq(curPage).offset().top
  }, 1000, 'swing', function(){
    scrollLock = false;
  });
};

function navigateUp () {
  if (curPage === 0) return;
  curPage--;
  pagination();
};

function navigateDown() {
  if (curPage === numOfPages) return;
  curPage++;
  pagination();
};


$(function() {
  scrollPage();
});
*, *:before, *::after {
  box-sizing: border-box;
}

body {
  color: #222;
  text-align: center;
  background-color: #f2f2f2;
  min-height: 100vh;
  overflow: hidden;
}

section {
  height: 100vh;
  position: relative;
}
section:nth-of-type(1) {
  background-color: #2d314a;
}
section:nth-of-type(2) {
  background-color: #3c91b6;
}
section:nth-of-type(3) {
  background-color: #6fc7bb;
}
section:nth-of-type(4) {
  background-color: #e59780;
}
section h1 {
  font-size: 3em;
  color: #fff;
  padding-top: 5vh;
  margin-top: 0;
  opacity: 0.7;
}
section h1 span {
  font: italic 300 1rem/1.5 calibri;
  display: block;
  opacity: 0.5;
}
section p {
  color: #fff;
  font-size: 5rem;
  margin: 0;
  position: absolute;
  left: 50%;
  top: 50%;
  -webkit-transform: translate(-50%, -50%);
          transform: translate(-50%, -50%);
}
<!DOCTYPE html>
<html lang="en" >
<head>
  <meta charset="UTF-8">
  <title>CodePen - Full Page Scroll</title>
  <meta name="description" content="website description...">
<meta name="viewport" content="width=device-width, initial-scale=1"><link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/normalize/5.0.0/normalize.min.css">
<link rel="stylesheet" href="./style.css">

</head>
<body>
<!-- partial:index.partial.html -->
<section>
  <h1><span>#1</span></h1>
  <p>1</p>
</section>
<section>
  <h1><span>#2</span></h1>
  <p>2</p>
</section>
<section>
  <h1><span>#3</span></h1>
  <p>3</p>
</section>
<section>
  <h1><span>#4</span></h1>
  <p>4</p>
</section>
<!-- partial -->
  <script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js'></script><script  src="./script.js"></script>

</body>
</html>

标签： javascripthtmlcssimageslider

解决方案

我已经修改了您的代码并在第 2 页添加了与滑块相关的更改。请检查以下代码段：

const $body = (window.opera) ? (document.compatMode == "CSS1Compat" ? $('html') : $('body')) : $('html,body'),
      $section = $('section');

var numOfPages = $section.length - 1,
    curPage = 0,
    scrollLock = false;

function scrollPage() {
  
  $(document).on("mousewheel DOMMouseScroll", function(e) {
    if (scrollLock) return;
    if (e.originalEvent.wheelDelta > 0 || e.originalEvent.detail < 0)
      navigateUp();
    else
      navigateDown();
  });
  $(document).on("keydown", function(e) {
    if (scrollLock) return;
    if (e.which === 38)
      navigateUp();
    else if (e.which === 40)
      navigateDown();
  });
}

function pagination() {
  scrollLock = true;
  $body.stop().animate({
    scrollTop: $section.eq(curPage).offset().top
  }, 1000, 'swing', function(){
    scrollLock = false;
  });
};

function navigateUp () {
  if (curPage === 0) return;
  curPage--;
  pagination();
};

function navigateDown() {
  if (curPage === numOfPages) return;
  curPage++;
  pagination();
};


$(function() {
  scrollPage();
});

var slideIndex = 1;
showSlides(slideIndex);

function plusSlides(n) {
  showSlides(slideIndex += n);
}

function currentSlide(n) {
  showSlides(slideIndex = n);
}

function showSlides(n) {
  var i;
  var slides = document.getElementsByClassName("mySlides");
  if (n > slides.length) {slideIndex = 1}    
  if (n < 1) {slideIndex = slides.length}
  for (i = 0; i < slides.length; i++) {
      slides[i].style.display = "none";  
  }
  slides[slideIndex-1].style.display = "block";  
}
*, *:before, *::after {
  box-sizing: border-box;
}

body {
  color: #222;
  text-align: center;
  background-color: #f2f2f2;
  min-height: 100vh;
  overflow: hidden;
}

section {
  height: 100vh;
  position: relative;
}
section:nth-of-type(1) {
  background-color: #2d314a;
}
section:nth-of-type(2) {
  background-color: #3c91b6;
}
section:nth-of-type(3) {
  background-color: #6fc7bb;
}
section:nth-of-type(4) {
  background-color: #e59780;
}
section h1 {
  font-size: 3em;
  color: #fff;
  padding-top: 5vh;
  margin-top: 0;
  opacity: 0.7;
}
section h1 span {
  font: italic 300 1rem/1.5 calibri;
  display: block;
  opacity: 0.5;
}
section p {
  color: #fff;
  font-size: 5rem;
  margin: 0;
  position: absolute;
  left: 50%;
  top: 50%;
  -webkit-transform: translate(-50%, -50%);
          transform: translate(-50%, -50%);
}

/*slider*/

* {box-sizing: border-box}
body {font-family: Verdana, sans-serif; margin:0}
.mySlides {display: none}
img {vertical-align: middle;}

/* Slideshow container */
.slideshow-container {
  position: relative;
  margin: auto;
}

/* Next & previous buttons */
.prev, .next {
  cursor: pointer;
  position: absolute;
  top: 35%;
  width: auto;
  padding: 16px;
  margin-top: -22px;
  color: white;
  font-weight: bold;
  font-size: 18px;
  transition: 0.6s ease;
  border-radius: 0 3px 3px 0;
  user-select: none;
}

/* Position the "next button" to the right */
.next {
  right: 0;
  border-radius: 3px 0 0 3px;
}
.prev {
  left: 0
}

/* On hover, add a black background color with a little bit see-through */
.prev:hover, .next:hover {
  background-color: rgba(0,0,0,0.8);
}

/* Caption text */
.text {
  color: #f2f2f2;
  font-size: 15px;
  padding: 8px 12px;
  position: absolute;
  bottom: 8px;
  width: 100%;
  text-align: center;
}

/* Number text (1/3 etc) */
.numbertext {
  color: #f2f2f2;
  font-size: 12px;
  padding: 8px 12px;
  position: absolute;
  top: 0;
}

/* The dots/bullets/indicators */
.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;
}

/* Fading animation */
.fade {
  -webkit-animation-name: fade;
  -webkit-animation-duration: 1.5s;
  animation-name: fade;
  animation-duration: 1.5s;
}

@-webkit-keyframes fade {
  from {opacity: .4} 
  to {opacity: 1}
}

@keyframes fade {
  from {opacity: .4} 
  to {opacity: 1}
}

/* On smaller screens, decrease text size */
@media only screen and (max-width: 300px) {
  .prev, .next,.text {font-size: 11px}
}
<!DOCTYPE html>
<html lang="en" >
<head>
  <meta charset="UTF-8">
  <title>CodePen - Full Page Scroll</title>
  <meta name="description" content="website description...">
<meta name="viewport" content="width=device-width, initial-scale=1"><link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/normalize/5.0.0/normalize.min.css">
<link rel="stylesheet" href="./style.css">

</head>
<body>
<!-- partial:index.partial.html -->
<section>
  <h1><span>#1</span></h1>
  <p>1</p>
</section>
<section>
  <!--h1><span>#2</span></h1>
  <p>2</p-->
  <div class="slideshow-container">

<div class="mySlides fade">
  <div class="numbertext">1 / 3</div>
  <img src="https://cdn.pixabay.com/photo/2020/03/19/18/29/camel-4948299__340.jpg" style="width:100%">
  <div class="text">Caption Text</div>
</div>

<div class="mySlides fade">
  <div class="numbertext">2 / 3</div>
  <img src="https://cdn.pixabay.com/photo/2020/03/21/19/27/sea-4955005__340.jpg" style="width:100%">
  <div class="text">Caption Two</div>
</div>

<div class="mySlides fade">
  <div class="numbertext">3 / 3</div>
  <img src="https://cdn.pixabay.com/photo/2020/03/22/10/26/namibia-4956610__340.jpg" style="width:100%">
  <div class="text">Caption Three</div>
</div>

<a class="prev" onclick="plusSlides(-1)">&#10094;</a>
<a class="next" onclick="plusSlides(1)">&#10095;</a>

</div>
</section>
<section>
  <h1><span>#3</span></h1>
  <p>3</p>
</section>
<section>
  <h1><span>#4</span></h1>
  <p>4</p>
</section>
<!-- partial -->
  <script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js'></script><script  src="./script.js"></script>

</body>
</html>

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