How to achieve carousel effect in uniapp

Uniapp is a cross-platform development tool based on the Vue.js framework, which can quickly and easily develop mobile applications. In mobile applications, carousel effects are widely used, which can bring users a better visual experience. So how to achieve the carousel effect in uniapp? Next, we will introduce an implementation method and provide corresponding code examples.

1. Use the uni-swiper component to achieve the carousel effect

The uni-swiper component is a carousel component provided by uniapp, which can achieve the switching effect of the carousel. Through the uni-swiper component, functions such as automatic carousel, manual carousel, and setting the interval of carousel images can be realized.

1. Introduce the uni-swiper component into the vue file of the page:

<template>
  <view>
    <uni-swiper :autoplay="true" :interval="3000" :circular="true" @change="swiperChange">
      <uni-swiper-item v-for="(item, index) in swiperList" :key="index">
        <image :src="item.imgUrl" mode="aspectFill" class="swiper-img"></image>
      </uni-swiper-item>
    </uni-swiper>
  </view>
</template>

<script>
export default {
  data() {
    return {
      swiperList: [
        {imgUrl: '图片地址1'},
        {imgUrl: '图片地址2'},
        {imgUrl: '图片地址3'}
      ]
    }
  },
  methods: {
    swiperChange(e) {
      console.log(e.detail.current)
    }
  }
}
</script>

2. Set the style of the carousel image in the style file of the page:

<style scoped>
.swiper-img {
  width: 100%;
  height: 100%;
}
</style>

2. Use third-party plug-ins to achieve carousel effects

If the uni-swiper component cannot meet our needs, we can also use some third-party plug-ins to achieve carousel effects , such as vue-awesome-swiper plug-in.

1. Install the vue-awesome-swiper plug-in:

npm install vue-awesome-swiper --save

2. Introduce the vue-awesome-swiper plug-in in the main.js file:

import Vue from 'vue'
import VueAwesomeSwiper from 'vue-awesome-swiper'

// require styles
import 'swiper/dist/css/swiper.css'

Vue.use(VueAwesomeSwiper)

3. Use the vue-awesome-swiper plug-in in the vue file of the page:

<template>
  <div class="swiper">
    <swiper :options="swiperOption" @slideChange="slideChange">
      <swiper-slide v-for="(item, index) in swiperList" :key="index">
        <img  class="swiper-img lazy"  src="/static/imghwm/default1.png"  data-src="item.imgUrl"  : alt="How to achieve carousel effect in uniapp" >
      </swiper-slide>
      <div class="swiper-pagination" slot="pagination"></div>
    </swiper>
  </div>
</template>

<script>
export default {
  data() {
    return {
      swiperList: [
        {imgUrl: '图片地址1'},
        {imgUrl: '图片地址2'},
        {imgUrl: '图片地址3'}
      ],
      swiperOption: {
        autoplay: {
          delay: 3000,
          disableOnInteraction: false
        },
        pagination: {
          el: '.swiper-pagination'
        }
      }
    }
  },
  methods: {
    slideChange(swiper) {
      console.log(swiper)
    }
  }
}
</script>

<style scoped>
.swiper {
  height: 200px;
}
.swiper-img {
  width: 100%;
  height: 100%;
}
</style>

The above are two methods to achieve the carousel effect in uniapp. Through the uni-swiper component or third-party plug-in, we can achieve different carousel effects, and customize the carousel according to our own needs, adding more charm to the mobile application. I hope this article can be helpful to everyone in realizing the carousel effect in uniapp development.

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