uniapp瀑布流实现

1. 图片瀑布流：

不依赖任何插件，复制即可见效：

javascript 复制代码

<template>
  <view class="page">
    <view class="left" ref="left">
      <image class="image" v-for="(item,i) in leftList" :key="i" :src="item" mode="widthFix"></image>
    </view>
    <view class="right" ref="right">
      <image class="image" v-for="(item,i) in rightList" :key="i" :src="item" mode="widthFix"></image>
    </view>
  </view>
</template>

<script>
  export default {
    data() {
      return {
        imageList: [
          "https://img0.baidu.com/it/u=1345303087,1528317222&fm=253&fmt=auto&app=138&f=JPEG?w=500&h=1082",
          "https://img2.baidu.com/it/u=1893470775,4143435497&fm=253&fmt=auto&app=138&f=JPEG?w=889&h=500",
          "https://img0.baidu.com/it/u=1088754973,1390499664&fm=253&fmt=auto&app=138&f=JPEG?w=335&h=500",
          "https://img1.baidu.com/it/u=3866290852,3566512524&fm=253&fmt=auto&app=138&f=JPEG?w=800&h=500",
          "https://img2.baidu.com/it/u=1114729443,1120710416&fm=253&fmt=auto&app=138&f=JPEG?w=667&h=500",
          "https://img0.baidu.com/it/u=1345303087,1528317222&fm=253&fmt=auto&app=138&f=JPEG?w=500&h=1082",
        ], //所有图片
        leftList: [], //左边列图片
        rightList: [], //右边列图片
        leftHeight: 0, //左边列高度
        rightHeight: 0, //右边列高度
        columnWidth: 0 //列宽度
      }
    },
    mounted() {
      this.$nextTick(() => {
        uni.createselectorQuery().in(this).select('.left').boundingClientRect(res => {
          this.columnWidth = res.width
          //方法
          this.setWaterFallLayout()
        }).exec()
      })
    },
    onReachBottom() {
      console.log("触底");
      let newList = [
        "https://img2.baidu.com/it/u=1893470775,4143435497&fm=253&fmt=auto&app=138&f=JPEG?w=889&h=500",
        "https://img0.baidu.com/it/u=1088754973,1390499664&fm=253&fmt=auto&app=138&f=JPEG?w=335&h=500",
        "https://img1.baidu.com/it/u=833730514,666835&fm=253&fmt=auto&app=138&f=JPEG?w=355&h=500",
        "https://img0.baidu.com/it/u=1088754973,1390499664&fm=253&fmt=auto&app=138&f=JPEG?w=335&h=500",
        "https://img1.baidu.com/it/u=3311811998,3185175032&fm=253&fmt=auto&app=138&f=JPEG?w=500&h=625",
        "https://img0.baidu.com/it/u=3319997766,4089593231&fm=253&fmt=auto&app=138&f=JPEG?w=889&h=500",
      ]
      this.imageList.push(...newList)
      console.log(this.imageList);
      this.setWaterFallLayout();
    },
    methods: {
      //通过uni.getImageInfo，小程序支持
      async setWaterFallLayout() {
        for (let item of this.imageList) {
          try {
            let h = await this.getImgHeight(item)
            if (this.leftHeight <= this.rightHeight) {
              this.leftList.push(item)
              this.leftHeight += h
            } else {
              this.rightList.push(item)
              this.rightHeight += h
            }
          } catch (e) {}
        }
      },
      getImgHeight(url) {
        return new Promise((resolve, reject) => {
          uni.getImageInfo({
            src: url,
            success: e => {
              resolve(e.height)

            },
            fail: e => {
              reject(e)
            }
          })
        })
      }
    }
  }
</script>

<style lang="scss">
  .page {
    width: 100%;
    display: flex;
    align-items: flex-start;
    padding: 0 1%;
    box-sizing: border-box;
  }

  .left,
  .right {
    margin: 0 auto;
    width: 48%;
  }

  .image {
    width: 100%;
    height: auto;
    margin-bottom: 10px;
  }
  .info{
    width: 100%;
    height: 200rpx;
    background-color: #55aa7f;
  }
</style>

运行效果：

2. 商品瀑布流：

不依赖任何插件，复制即可见效：

javascript 复制代码

<template>
  <view class="Index">
    <!-- 瀑布流布局列表 -->
    <view class="pubuBox">
      <view class="pubuItem">
        <view class="item-masonry" v-for="(item, index) in comList" :key="index">
          <image :src="item.img" mode="widthFix"></image>
          <view class="listtitle">
            <!-- 这是没有高度的父盒子（下半部分） -->
            <view class="listtitle1">{{ item.name }}</view>
            <view class="listtitle2">
              <text class="listtitle2son">￥</text>
              {{ item.commdityPrice }}
            </view>
            <view class="listtitle3">
              某某某某旗舰店
            </view>
          </view>
        </view>
      </view>
    </view>
  </view>
</template>

<script>
  export default {
    data() {
      return {
        comList: [{
            img: "https://img2.baidu.com/it/u=3853345508,384760633&fm=253&app=120&size=w931&n=0&f=JPEG&fmt=auto?sec=1689958800&t=210689b7eb06d7c78958d7063151cba6",
            name: '商品的名称，可以很长很长很长很长很长很长很长很长很长很长很长很长很长很长很长很长很长很长',
            commdityPrice: 100
          }, {
            img: 'https://img2.baidu.com/it/u=1814268193,3619863984&fm=253&app=138&size=w931&n=0&f=JPEG&fmt=auto?sec=1689958800&t=d6764859a9740bb4aead7703daa61876',
            name: '商品名称会在超出两行时候自动折叠',
            commdityPrice: 100
          },
          {
            img: 'https://img0.baidu.com/it/u=1604010673,2427861166&fm=253&app=138&size=w931&n=0&f=JPEG&fmt=auto?sec=1689958800&t=2e255208580c0570167a800344d3aa59',
            name: '只有一行标题时高度为39',
            commdityPrice: 100
          }, {
            img: 'https://img0.baidu.com/it/u=2627496060,1933351908&fm=253&app=138&size=w931&n=0&f=JPEG&fmt=auto?sec=1689958800&t=fd7a89ad586d338543b6916df7083e4f',
            name: '具体样式您可以自定义',
            commdityPrice: 100
          }, {
            img: 'https://img2.baidu.com/it/u=3853345508,384760633&fm=253&app=120&size=w931&n=0&f=JPEG&fmt=auto?sec=1689958800&t=210689b7eb06d7c78958d7063151cba6',
            name: 'vue的H5页面也是如此使用',
            commdityPrice: 100
          }
        ], //商品列表
      };
    },
    onShow() {},
    onLoad() {},
    methods: {},
    // 触底加载下一页 换成真实的请求到的数据
    onReachBottom() {
      console.log("触底");
      // 模拟的请求数据
      let newList = [
        {
          img: "https://img2.baidu.com/it/u=1893470775,4143435497&fm=253&fmt=auto&app=138&f=JPEG?w=889&h=500",
          name: '具体样式您可以自定义',
          commdityPrice: 100
        }, {
          img: "https://img0.baidu.com/it/u=1088754973,1390499664&fm=253&fmt=auto&app=138&f=JPEG?w=335&h=500",
          name: '具体样式您可以自定义',
          commdityPrice: 100
        }, {
          img: "https://img1.baidu.com/it/u=833730514,666835&fm=253&fmt=auto&app=138&f=JPEG?w=355&h=500",
          name: '具体样式您可以自定义',
          commdityPrice: 100
        }, {
          img: "https://img0.baidu.com/it/u=1088754973,1390499664&fm=253&fmt=auto&app=138&f=JPEG?w=335&h=500",
          name: '具体样式您可以自定义',
          commdityPrice: 100
        },
      ]
      this.comList.push(...newList)
      console.log(this.comList);
    },
  };
</script>

<style scoped="scoped" lang="scss">
  //瀑布流
  page {
    background-color: #eee;
    height: 100%;
  }
  .pubuBox {
    padding: 22rpx;
  }
  .pubuItem {
    column-count: 2;
    column-gap: 20rpx;
  }
  .item-masonry {
    box-sizing: border-box;
    border-radius: 15rpx;
    overflow: hidden;
    background-color: #fff;
    break-inside: avoid;
    /*避免在元素内部插入分页符*/
    box-sizing: border-box;
    margin-bottom: 20rpx;
    box-shadow: 0px 0px 28rpx 1rpx rgba(78, 101, 153, 0.14);
  }
  .item-masonry image {
    width: 100%;
  }
  .listtitle {
    padding-left: 22rpx;
    font-size: 24rpx;
    padding-bottom: 22rpx;
    .listtitle1 {
      line-height: 39rpx;
      text-overflow: -o-ellipsis-lastline;
      overflow: hidden;
      text-overflow: ellipsis;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      line-clamp: 2;
      -webkit-box-orient: vertical;
      min-height: 39rpx;
      max-height: 78rpx;
    }
    .listtitle2 {
      color: #ff0000;
      font-size: 32rpx;
      line-height: 32rpx;
      font-weight: bold;
      padding-top: 22rpx;
      .listtitle2son {
        font-size: 32rpx;
      }
    }
    .listtitle3 {
      font-size: 28rpx;
      color: #909399;
      line-height: 32rpx;
      padding-top: 22rpx;
    }
  }
  .Index {
    width: 100%;
    height: 100%;
  }
</style>

运行效果：