• Swiper实现轮播效果

    swiper官网：https://3.swiper.com.cn/

    文章目录

    html实现

    DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Documenttitle>
    <link
      rel="stylesheet"
      href="https://unpkg.com/swiper@8/swiper-bundle.min.css"
    />
    <script src="https://unpkg.com/swiper@8/swiper-bundle.min.js">script>
  head>
  <style>
    .swiper {
      width: 620px;
      height: 720px;
    }

    /* 左右箭头 */
    .swiper-button-prev:after {
      display: none;
    }
    .swiper-button-prev {
      background: url("./image/left-1.png");
      background-size: contain;
      background-repeat: no-repeat;
      width: 110px;
      height: 120px;
      left: 5px;
    }
    .swiper-button-next:after {
      display: none;
    }
    .swiper-button-next {
      background: url("./image/right-1.png");
      background-size: contain;
      background-repeat: no-repeat;
      width: 110px;
      height: 120px;
      right: 0px;
      z-index: 999;
      position: absolute;
    }

    /* 图片显示 */
    .swiper-slide {
      display: flex;
      justify-content: center;
      align-items: center;
    }
    .swiper-slide img {
      width: 300px;
    }
    .swiper-slide-active img {
      position: absolute;
      width: 395px;
      transition: width 0.5s;
    }
    .swiper-slide-next img {
      position: absolute;
      left: -230px;
    }
    .swiper-slide-prev img {
      position: absolute;
      right: -230px;
    }
    .swiper-slide-active {
      z-index: 999;
    }
    .swiper-slide-next {
      z-index: 888;
    }
    .swiper-slide-prev {
      z-index: 888;
    }
    .bullet-style {
      width: 0px;
      height: 0px;
      border: 6px solid black;
      background-color: black;
      background-clip: padding-box;
      transform: rotateZ(45deg);
      display: inline-block;
      margin: 0 8px;
      cursor: pointer;
    }
    .bullet-style:hover {
      border-color: gray;
      background-color: gray;
    }
    .bullet-style-active {
      border-style: double;
      border-width: 8px;
    }
  style>
  <body>
    <div class="swiper">
      <div class="swiper-wrapper">
        <div class="swiper-slide">
          <img src="./image/world-3-3-1.png" />
        div>
        <div class="swiper-slide">
          <img src="./image/world-4-4-1.png" />
        div>
        <div class="swiper-slide">
          <img src="./image/world-2-2-1.png" />
        div>
      div>
      
      <div class="swiper-pagination">div>

      
      <div class="swiper-button-prev">div>
      <div class="swiper-button-next">div>
    div>
    
    <script type="module">
      import Swiper from "https://unpkg.com/swiper@8/swiper-bundle.esm.browser.min.js";
      let addBullentsEvent = () => {};
      const mySwiper = new Swiper(".swiper", {
        loop: true, // 循环模式选项
        // 分页器
        pagination: {
          el: ".swiper-pagination",
          clickable: true,
          // 自定义分页其样式
          type: "custom",
          renderCustom: function (swiper, current, total) {
            let renderHTML = "";
            for (let i = 0; i < total; i++) {
              if (i + 1 == current) {
                renderHTML += `
    `    ;
              } else {
                renderHTML += `
    `    ;
              }
            }
            return renderHTML;
          },
        },
        // 前进后退按钮
        navigation: {
          nextEl: ".swiper-button-next",
          prevEl: ".swiper-button-prev",
        },

        slidesPerView: 2, //设置slider容器能够同时显示的slides数量
        spaceBetween: 80, //slide之间的距离（单位px）
        centeredSlides: true, //设定为true时，active slide会居中，而不是默认状态下的居左。
        observer: true, //修改swiper自己或子元素时，重新加载
        observeParents: true, //修改swiper的父元素时，重新加载
        centerInsufficientSlides: true, //当slides 的总数小于 slidesPerView 时，slides居中。
        autoplay: {
          delay: 3000, //3秒切换一次
        },

        // 事件

        on: {
          paginationRender: function () {
            console.log("分页器渲染了");
            // 重新添加事件
            addBullentsEvent();
          },
          autoplayStart: function () {
            console.log("开始自定切换");
          },
          autoplayStop: function () {
            console.log("关闭自动切换");
          },
        },
      });

      addBullentsEvent = () => {
        const bullents = document.getElementsByClassName("bullet-style");
        for (let i = 0; i < bullents.length; i++) {
          console.log("obj.onclick", bullents[i].onclick);
          bullents[i].removeEventListener("click", () => {});
          bullents[i].addEventListener("click", function () {
           mySwiper.slideToLoop(i); //切换到对应的slide
            mySwiper.autoplay.start();
          });
        }
      };

      window.addEventListener("load", () => {
        addBullentsEvent();
        document
          .getElementsByClassName("swiper-button-next")[0]
          .addEventListener("click", () => {
            mySwiper.autoplay.start();
          });
        document
          .getElementsByClassName("swiper-button-prev")[0]
          .addEventListener("click", () => {
            mySwiper.autoplay.start();
          });
      });
        script>
  body>
html>


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    效果：
    在这里插入图片描述

    vue实现

    swiperComponent.vue

    <template>
  <div class="container">
    <swiper-container init="false">
      <template v-if="imageList.length > 3">
        <swiper-slide v-for="item in imageList" :key="item">
          <img :src="item" />
        swiper-slide>
      template>
      <template v-else>
        <swiper-slide v-for="item in imageList" :key="item">
          <img :src="item" />
        swiper-slide>
        <swiper-slide v-for="item in imageList" :key="item">
          <img :src="item" />
        swiper-slide>
      template>
    swiper-container>
  div>
template>
<script setup>
import { onMounted, onBeforeUnmount } from "vue";
import { register } from "swiper/element/bundle";
// 注册swiper组件 —— 引入swiper-container和swiper-slide组件
register();
const props = defineProps({
  imageList: {
    type: Array,
    default: () => [
      "https://gd-hbimg.huaban.com/5c32ab9c3fc4ff636fe89aa78f6de3104b5c6c3526000-vKlkAM_fw240webp",
      "https://gd-hbimg.huaban.com/7beade1e1d116a61c35fc380cd0bc220833b2eba2fdc7-vSPKhr_fw658webp",
      // "https://gd-hbimg.huaban.com/36c59291bb5de1038b18999f296b22a738848a0a48f75-cm8YJS",
      // "/images/rabbit/preheat/world-3-3-1.png",
    ],
  },
});
// 分页器style
const swiperPaginationStyle = `
  .bullet-style {
    width: 0px;
    height: 0px;
    border: 6px solid black;
    background-color: black !important;
    background-clip: padding-box;
    transform: rotateZ(45deg);
    display: inline-block;
    margin: 0 8px;
    cursor: pointer;
  }
  .bullet-style:hover {
    border-color: gray;
    background-color: gray;
  }
  .bullet-style-active {
    border-style: double;
    border-width: 8px;
  }`;
// 前进后退按钮style
const swiperNavigationStyle = `
  .swiper-button-prev svg {
    display: none;
  }
  .swiper-button-prev {
    background: url("/images/rabbit/preheat/left.png");
    background-size: contain;
    background-repeat: no-repeat;
    width: 110px;
    height: 120px;
    left: 5px;
  }
  .swiper-button-next svg {
    display: none;
  }
  .swiper-button-next {
    background: url("/images/rabbit/preheat/right.png");
    background-size: contain;
    background-repeat: no-repeat;
    width: 110px;
    height: 120px;
    right: 0px;
    z-index: 999;
    position: absolute;
  }
  `;

onMounted(() => {
  const swiperEl = document.querySelector("swiper-container");
  const swiperParams = {
    loop: true, // 循环模式选项
    // loopAdditionalSlides: 1,
    // 分页器
    pagination: {
      clickable: true,
      // 自定义分页其样式
      type: "custom",
      renderCustom: function (swiper, current, total) {
        const activeLength =
          props.imageList.length > 3 ? total : props.imageList.length;

        current =
          props.imageList.length > 3
            ? current
            : current % props.imageList.length || props.imageList.length;
        let renderHTML = "";
        for (let i = 0; i < activeLength; i++) {
          if (i + 1 == current) {
            renderHTML += `
    `    ;
          } else {
            renderHTML += `
    ${i})">
    `    ;
          }
        }
        return renderHTML;
      },
    },
    // 前进后退按钮
    navigation: true,
    slidesPerView: 2, //设置slider容器能够同时显示的slides数量
    spaceBetween: 80, //slide之间的距离（单位px）
    centeredSlides: true, //设定为true时，active slide会居中，而不是默认状态下的居左。
    observer: true, //修改swiper自己或子元素时，重新加载
    observeParents: true, //修改swiper的父元素时，重新加载
    centerInsufficientSlides: true, //当slides 的总数小于 slidesPerView 时，slides居中。
    // autoplay: {
    //   delay: 2000, //3秒切换一次
    // },
    lazy: {
      loadPrevNext: true, // 允许将延迟加载应用到最接近的slide的图片
      loadPrevNextAmount: 3,
    },

    injectStyles: [swiperPaginationStyle, swiperNavigationStyle],

    // 不是生效为什么
    // injectStylesUrls: ["./index.css"],
  };
  Object.assign(swiperEl, swiperParams);

  swiperEl.initialize();
});
onBeforeUnmount(() => {
  const swiperEl = document.querySelector("swiper-container");
  swiperEl.destroy();
});
    script>
<style lang="less">
body::-webkit-scrollbar {
  // 隐藏滚动条
  display: none; /* Chrome, Safari and Opera */
  -ms-overflow-style: none; /* IE and Edge */
  scrollbar-width: none; /* Firefox */
}
swiper-container {
  width: 620px;
  height: 720px;
}
swiper-slide {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  transition: 0.5s;
  img {
    width: 300px;
  }
}
swiper-slide.swiper-slide-active {
  img {
    position: absolute;
    width: 395px;
    transition: width 0.5s;
  }
  z-index: 999;
}
swiper-slide.swiper-slide-prev {
  img {
    position: absolute;
    right: -230px;
  }
  z-index: 888;
}
swiper-slide.swiper-slide-next {
  img {
    position: absolute;
    left: -230px;
  }
  z-index: 888;
}
style>

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    效果：
    在这里插入图片描述

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  • 原文地址：https://blog.csdn.net/mantou_riji/article/details/136377626