解决方案
直接复制代码 <hd-list/> 列表布局数据自己写
<template>
<view class="waterfall-wrap">
<view class="waterfall-list">
<view class="left">
<hd-list
:listData="item"
v-for="(item,index) in goodsLeftList"
:key="index"
@onImageLoad="onImageLoad"
></hd-list>
</view>
<view class="right">
<hd-list
:listData="item"
v-for="(item,index) in goodsRightList"
:key="index"
@onImageLoad="onImageLoad"
></hd-list>
</view>
</view>
</view>
</template>
<script>
import hdList from "../component/hd-list.vue";
export default {
name: "waterfall",
props: {
listData: {
type: Array,
default: []
}
},
components: {
hdList
},
watch: {
/**
* 监听listData数据
*/
listData: {
handler: function(data) {
data.length > 0 && this.waterfallImage();
},
immediate: true
}
},
data() {
return {
goodsListCount: 0, //加载第i张图片
// 左侧商品列表
goodsLeftList: [],
goodsLeftListHeight: 0,
// 右侧商品列表
goodsRightList: [],
goodsRightListHeight: 0
};
},
methods: {
// 图片绑定事件,通过比较左右列表高度,实现瀑布流展示
onImageLoad: function(e) {
let divWidth = 342; //显示的单栏宽度,我设为342rpx
let oImgW = e.detail.width; //图片原始宽度
let oImgH = e.detail.height; //图片原始高度
let rImgH = (divWidth * oImgH) / oImgW + 32; //根据宽高比计算当前载入的图片的高度
if (this.goodsListCount == 0) {
this.goodsLeftListHeight += rImgH; //第一张图片高度加到goodsLeftListHeight
this.goodsListCount++; //图片索引加1
this.goodsRightList.push(this.listData[this.goodsListCount]); //添加第二张图片到goodsRightList数组,因为第一张已经初始化到左侧列表中
} else {
this.goodsListCount++; //图片索引加1
if (this.goodsLeftListHeight > this.goodsRightListHeight) {
//把图片的高度加到目前高度更低的栏中
this.goodsRightListHeight += rImgH; //第二张图片高度加到goodsRightListHeight
} else {
this.goodsLeftListHeight += rImgH;
}
if (this.goodsListCount < this.listData.length) {
//根据目前的栏高,把下一张图片,push到低的那栏
if (this.goodsLeftListHeight > this.goodsRightListHeight) {
this.goodsRightList.push(this.listData[this.goodsListCount]);
} else {
this.goodsLeftList.push(this.listData[this.goodsListCount]);
}
}
}
},
// 向商品列表添加第一张图片
async waterfallImage() {
this.goodsListCount = 0;
this.goodsLeftList.push(this.listData[0]);
}
}
};
</script>