vue实现按卡片轮播

实现卡片轮播的基本思路

在Vue中实现卡片轮播通常需要结合轮播组件库或自定义滑动动画效果。核心逻辑包括动态渲染卡片、处理滑动事件、计算当前展示的卡片位置。

使用第三方库（Swiper）

安装Swiper库：

npm install swiper vue-awesome-swiper

示例代码：

<template>
  <swiper :options="swiperOption">
    <swiper-slide v-for="(card, index) in cards" :key="index">
      <div class="card">{{ card.content }}</div>
    </swiper-slide>
  </swiper>
</template>

<script>
import { Swiper, SwiperSlide } from 'vue-awesome-swiper'
import 'swiper/css/swiper.css'

export default {
  components: { Swiper, SwiperSlide },
  data() {
    return {
      cards: [
        { content: 'Card 1' },
        { content: 'Card 2' },
        { content: 'Card 3' }
      ],
      swiperOption: {
        slidesPerView: 3,
        spaceBetween: 30,
        pagination: {
          el: '.swiper-pagination',
          clickable: true
        }
      }
    }
  }
}
</script>

<style>
.card {
  height: 200px;
  background: #eee;
  display: flex;
  align-items: center;
  justify-content: center;
}
</style>

自定义实现方案

通过CSS过渡和Vue数据绑定实现基础轮播：

<template>
  <div class="carousel-container">
    <div class="carousel-track" :style="trackStyle">
      <div v-for="(card, index) in cards" 
           :key="index" 
           class="card"
           :class="{ 'active': index === currentIndex }">
        {{ card.content }}
      </div>
    </div>
    <button @click="prev">Prev</button>
    <button @click="next">Next</button>
  </div>
</template>

<script>
export default {
  data() {
    return {
      currentIndex: 0,
      cards: [
        { content: 'Card 1' },
        { content: 'Card 2' },
        { content: 'Card 3' }
      ]
    }
  },
  computed: {
    trackStyle() {
      return {
        transform: `translateX(-${this.currentIndex * 100}%)`
      }
    }
  },
  methods: {
    prev() {
      this.currentIndex = Math.max(0, this.currentIndex - 1)
    },
    next() {
      this.currentIndex = Math.min(this.cards.length - 1, this.currentIndex + 1)
    }
  }
}
</script>

<style>
.carousel-container {
  overflow: hidden;
  position: relative;
  width: 300px;
}

.carousel-track {
  display: flex;
  transition: transform 0.5s ease;
}

.card {
  flex: 0 0 100%;
  height: 200px;
  background: #eee;
  display: flex;
  align-items: center;
  justify-content: center;
}
</style>

进阶功能实现

添加无限循环和自动播放功能：

// 在data中添加
autoPlayInterval: null,
autoPlayDelay: 3000

// 在methods中添加
startAutoPlay() {
  this.autoPlayInterval = setInterval(() => {
    this.next()
  }, this.autoPlayDelay)
},
stopAutoPlay() {
  clearInterval(this.autoPlayInterval)
}

// 在mounted生命周期中调用
mounted() {
  this.startAutoPlay()
}

// 在beforeDestroy中清除
beforeDestroy() {
  this.stopAutoPlay()
}

响应式设计建议

针对不同屏幕尺寸调整显示卡片数量：

// 在swiperOption中添加
breakpoints: {
  1024: {
    slidesPerView: 3,
    spaceBetween: 30
  },
  768: {
    slidesPerView: 2,
    spaceBetween: 20
  },
  640: {
    slidesPerView: 1,
    spaceBetween: 10
  }
}

以上方案可根据实际需求选择使用第三方库或自定义实现，第三方库功能更完善但体积较大，自定义实现更轻量但需要处理更多边界情况。