vue组件实现轮播

vue组件实现轮播

使用Swiper库实现轮播

安装Swiper库：

npm install swiper

在Vue组件中引入Swiper：

<template>
  <div class="swiper-container">
    <div class="swiper-wrapper">
      <div class="swiper-slide" v-for="(item, index) in slides" :key="index">
        <img :src="item.image" alt="">
      </div>
    </div>
    <div class="swiper-pagination"></div>
    <div class="swiper-button-next"></div>
    <div class="swiper-button-prev"></div>
  </div>
</template>

<script>
import Swiper from 'swiper';
import 'swiper/swiper-bundle.css';

export default {
  data() {
    return {
      slides: [
        { image: 'image1.jpg' },
        { image: 'image2.jpg' },
        { image: 'image3.jpg' }
      ]
    };
  },
  mounted() {
    new Swiper('.swiper-container', {
      loop: true,
      pagination: {
        el: '.swiper-pagination',
        clickable: true
      },
      navigation: {
        nextEl: '.swiper-button-next',
        prevEl: '.swiper-button-prev'
      }
    });
  }
};
</script>

<style scoped>
.swiper-container {
  width: 100%;
  height: 300px;
}
.swiper-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
</style>

使用纯CSS实现轮播

通过CSS动画和Vue的数据绑定实现简单轮播：

<template>
  <div class="carousel">
    <div class="slides" :style="{ transform: `translateX(-${currentIndex * 100}%)` }">
      <div class="slide" v-for="(item, index) in slides" :key="index">
        <img :src="item.image" alt="">
      </div>
    </div>
    <div class="dots">
      <span 
        v-for="(item, index) in slides" 
        :key="index" 
        :class="{ active: currentIndex === index }"
        @click="currentIndex = index"
      ></span>
    </div>
  </div>
</template>

<script>
export default {
  data() {
    return {
      slides: [
        { image: 'image1.jpg' },
        { image: 'image2.jpg' },
        { image: 'image3.jpg' }
      ],
      currentIndex: 0,
      interval: null
    };
  },
  mounted() {
    this.interval = setInterval(() => {
      this.currentIndex = (this.currentIndex + 1) % this.slides.length;
    }, 3000);
  },
  beforeDestroy() {
    clearInterval(this.interval);
  }
};
</script>

<style scoped>
.carousel {
  position: relative;
  width: 100%;
  height: 300px;
  overflow: hidden;
}
.slides {
  display: flex;
  transition: transform 0.5s ease;
  height: 100%;
}
.slide {
  flex: 0 0 100%;
  height: 100%;
}
.slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.dots {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
}
.dots span {
  width: 10px;
  height: 10px;
  margin: 0 5px;
  border-radius: 50%;
  background: #ccc;
  cursor: pointer;
}
.dots span.active {
  background: #333;
}
</style>

使用Vue过渡动画实现轮播

利用Vue的过渡组件实现更丰富的动画效果：

<template>
  <div class="carousel">
    <transition :name="transitionName">
      <div class="slide" :key="currentIndex">
        <img :src="slides[currentIndex].image" alt="">
      </div>
    </transition>
    <button @click="prev">Prev</button>
    <button @click="next">Next</button>
  </div>
</template>

<script>
export default {
  data() {
    return {
      slides: [
        { image: 'image1.jpg' },
        { image: 'image2.jpg' },
        { image: 'image3.jpg' }
      ],
      currentIndex: 0,
      transitionName: 'slide-right'
    };
  },
  methods: {
    prev() {
      this.transitionName = 'slide-right';
      this.currentIndex = (this.currentIndex - 1 + this.slides.length) % this.slides.length;
    },
    next() {
      this.transitionName = 'slide-left';
      this.currentIndex = (this.currentIndex + 1) % this.slides.length;
    }
  }
};
</script>

<style scoped>
.carousel {
  position: relative;
  width: 100%;
  height: 300px;
  overflow: hidden;
}
.slide {
  position: absolute;
  width: 100%;
  height: 100%;
}
.slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.slide-right-enter-active,
.slide-right-leave-active,
.slide-left-enter-active,
.slide-left-leave-active {
  transition: all 0.5s ease;
}
.slide-right-enter {
  transform: translateX(-100%);
}
.slide-right-leave-to {
  transform: translateX(100%);
}
.slide-left-enter {
  transform: translateX(100%);
}
.slide-left-leave-to {
  transform: translateX(-100%);
}
</style>

以上三种方法分别适合不同场景：Swiper库功能最全面，纯CSS实现轻量简单，Vue过渡动画则提供更多自定义动画效果。根据项目需求选择最适合的实现方式。