如何在 swiper.js 中更改滑动方向？答案

【问题标题】：How to change swipe direction in swiper.js?如何在 swiper.js 中更改滑动方向？
【发布时间】：2019-07-02 18:59:36
【问题描述】：

当我将滑动器旋转 90 度时，我正在努力改变滑动方向。所以一开始默认它是水平方向的。单击幻灯片时，我正在旋转“swiper-container”使其全屏显示。所以它仍然有从左到右的滑动方向，但我需要从上到下改变而不将参数方向改变为垂直。

const topSwiper = new Swiper(this.DOMTopSwiper.current, {
  spaceBetween: 0,
  observer: true,
  observeParents: true,
  observeSlideChildren: true,
  direction: "vertical",
  navigation: {
    nextEl: ".top-swiper-button-next",
    prevEl: ".top-swiper-button-prev",
  },
  pagination: {
    el: ".zoom-amount-slides",
    type: "fraction",
  },
})

【问题讨论】：

你为什么不旋转容器，而是使用设备方向api并强制设备旋转？这是一个关于如何使用它的示例。jotform.com/blog/…
你为什么要轮换这个开始？我现在是否应该将头倾斜 90° 才能正确看到内容……？
@anderson-ivan-witzke window.screen.orientation 是实验性 API，某些浏览器不支持
when I rotate my swiper on 90deg 是什么意思？它是您从纵向旋转到横向的移动设备吗？

标签： javascript css reactjs ecmascript-6 swiper

【解决方案1】：

销毁之前的 Swiper 并重新初始化 Swiper 并给出方向值。这里是doc

演示

let isVertical = true,
  direction = 'vertical';
let swiper = initSwiper(direction);

function initSwiper(direction) {
  return new Swiper('.swiper-container', {
    spaceBetween: 50,
    pagination: {
      el: '.swiper-pagination',
      clickable: true,
    },
    direction: direction
  });

}

function changeDirection() {
  isVertical = !isVertical;
  direction = isVertical ? 'vertical' : 'horizontal';
  let slideIndex = swiper.activeIndex;
  swiper.destroy(true, true);
  swiper = initSwiper(direction);
  swiper.slideTo(slideIndex,0);
}

html, body {
  position: relative;
  height: 100%;
}
body {
  background: #eee;
  font-family: Helvetica Neue, Helvetica, Arial, sans-serif;
  font-size: 14px;
  color:#000;
  margin: 0;
  padding: 0;
}
.swiper-container {
  width: 400px;
  height: 400px;
}
.swiper-slide {
  text-align: center;
  font-size: 18px;
  background: #fff;
  /* Center slide text vertically */
  display: -webkit-box;
  display: -ms-flexbox;
  display: -webkit-flex;
  display: flex;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  -webkit-justify-content: center;
  justify-content: center;
  -webkit-box-align: center;
  -ms-flex-align: center;
  -webkit-align-items: center;
  align-items: center;
}

<!-- Link Swiper's CSS -->
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/Swiper/4.4.6/css/swiper.min.css">
<!-- Swiper JS -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/Swiper/4.4.6/js/swiper.js"></script>
<button onclick='changeDirection()'>Change Direction</button>
<!-- Swiper -->
<div class="swiper-container">
  <div class="swiper-wrapper">
    <div class="swiper-slide">Slide 1</div>
    <div class="swiper-slide">Slide 2</div>
    <div class="swiper-slide">Slide 3</div>
  </div>
  <!-- Add Pagination -->
  <div class="swiper-pagination"></div>
</div>

【讨论】：

@yerlan-yeszhanov 想要旋转图片本身，而不只是改变滑块方向
@Durga 感谢演示，但如上所述“没有将参数方向更改为垂直”。
@YerlanYeszhanov，你发现有什么问题吗？
@Durga 你的意思是像一个立方体

【解决方案2】：

试试我的解决方案。

//Tested in Swiper 7.2.0
/**
 * Insert to your page
 */
var rotate90Swiper = (function (swiper, optIsRotate90) {
    var isRoate90 = !!optIsRotate90
    swiper.___touches = {}
    swiper.___touches.currentX = swiper.touches.currentX
    Object.defineProperty(swiper.touches, 'currentX', {
        set: function (v) {
            if (!isRoate90) {
                swiper.___touches.currentX = v
            } else {

                swiper.___touches.currentY = v
            }

        },
        get: function () {
            return swiper.___touches.currentX
        }
    })
    swiper.___touches.currentY = swiper.touches.currentY
    Object.defineProperty(swiper.touches, 'currentY', {
        set: function (v) {
            if (!isRoate90) {
                swiper.___touches.currentY = v
            } else {
                swiper.___touches.currentX = v
            }
        },
        get: function () {
            return swiper.___touches.currentY
        }
    })
    return function (b) {
        isRoate90 = b
    }
})

/**
 * How to use
 */
var setRotate90 = rotate90Swiper(YourSwiperInstance, defaultIsRotate90)
setRotate90(false) // swiper rotate 90deg
setRotate90(true)   //normal swiper

【讨论】：