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今日分享【微信小程序实现堆叠式轮播图】

一叶知秋2024-05-13 07:19:21JS逆向1

1、先看效果
在这里插入图片描述
2、来看具体实现代码

  • wxml
<view class="swiper-box-1" bindtouchmove="tauchMove" bindtouchstart="tauchStart" bindtouchend="tauchEnd">
  <view class="item-box-1 {{item.zIndex==1?'none':''}}" wx:for="{{swiperList}}" wx:key="index" style="--index:{{item.zIndex}};--left:{{item.mLeft}}">
    <view class="swiper-item">
      <image src="{{item.url}}" mode="aspectFill"></image>
    </view>
  </view>
</view>
  • wxss
.swiper-item image{
  width: 100%;
  display: block;
  height: 100%;
  margin: 0;
  pointer-events: none;
}

image {
  max-width: 100%;
  display: inline-block;
  position: relative;
  z-index: 0;
}

.swiper-box-1 {
  height: 420rpx;
  position: relative;
  max-width: 750rpx;
  overflow: hidden;
  box-sizing: border-box;
  margin-top: 90rpx;
}

.swiper-box-1 .item-box-1 {
  position: absolute;
  width: 300rpx;
  height: 380rpx;
  top: 0;
  bottom: 0;
  left: 50%;
  margin: auto;
  transition: all 0.2s ease-in 0s;
  opacity: 1;
  box-shadow: 0px 13rpx 12rpx rgba(0, 0, 0, .5);
  border-radius: 15rpx;
  overflow: hidden;
}

.swiper-box-1 .item-box-1.none {
  opacity: 0;
}

.swiper-box-1 .item-box-1 .swiper-item {
  width: 100%;
  height: 100%;
  border-radius: 6rpx;
  overflow: hidden;
}


.swiper-box-1 .item-box-1 {
  transform: scale(calc(0.5 + var(--index) / 10));
  margin-left: calc(var(--left) * 100rpx - 150rpx);
  z-index: var(--index);
}
  • js
Page({

  data: {
    swiperList: [
     {

        type: 'image',
        url: 'https://s21.ax1x.com/2024/04/29/pkFAvTO.jpg'
      },
       {

        type: 'image',
        url: 'https://s21.ax1x.com/2024/04/29/pkFAvTO.jpg'
      },
      {
        type: 'image',
        url: 'https://s21.ax1x.com/2024/04/29/pkFAvTO.jpg'
      },
    ],
  },


  onLoad: function (options) {
    this.tauchSwiper('swiperList');
  },
  // 初始化swiper
  tauchSwiper(name) {
    let list = this.data[name];
    for (let i = 0; i < list.length; i++) {
      list[i].zIndex = parseInt(list.length / 2) + 1 - Math.abs(i - 			parseInt(list.length / 2))
      list[i].mLeft = i - parseInt(list.length / 2)
    }
    this.setData({
      swiperList: list
    })
  },
  // tauchSwiper触摸开始
  tauchStart(e) {
    this.setData({
      tauchStart: e.touches[0].pageX
    })
  },
  // tauchSwiper计算方向
  tauchMove(e) {
    this.setData({
      direction: e.touches[0].pageX - this.data.tauchStart > 0 ?  	'right' : 'left'
    })
  },
  // tauchSwiper计算滚动
  tauchEnd(e) {
    let direction = this.data.direction;
    let list = this.data.swiperList;
    if (direction == 'right') {
      let mLeft = list[0].mLeft;
      let zIndex = list[0].zIndex;
      for (let i = 1; i < list.length; i++) {
        list[i - 1].mLeft = list[i].mLeft
        list[i - 1].zIndex = list[i].zIndex
      }
      list[list.length - 1].mLeft = mLeft;
      list[list.length - 1].zIndex = zIndex;
      this.setData({
        swiperList: list
      })
    } else {
      let mLeft = list[list.length - 1].mLeft;
      let zIndex = list[list.length - 1].zIndex;
      for (let i = list.length - 1; i > 0; i--) {
        list[i].mLeft = list[i - 1].mLeft
        list[i].zIndex = list[i - 1].zIndex
      }
      list[0].mLeft = mLeft;
      list[0].zIndex = zIndex;
      this.setData({
        swiperList: list
      })
    }
  }


})

3、写在最后:实现简单,勤于动手,不需要任何插件,你自己就可以纯手撸一个‘花里胡哨’的轮播图…

4、贴下自己的小程序,有很多花里胡哨的东西,喜欢可以扫码查看

在这里插入图片描述

扫描二维码推送至手机访问。

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本文链接:https://blog.yyzq.team/post/338487.html

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