scroll-sticky.uvue

<template>
	<scroll-view :scroll-y="true" @scroll="onScroll" class="page">

	<view v-for="(item,index) in list" :key="index" class="item">
		first content-{{item}}
	</view>

	<!-- <view ref="sticky" class="search" @click="" :style="{
'transform': 'translateY('+stickyTran+'px)'
	}"> -->
	<view ref="sticky" class="search" @click="">
		<view style="flex-direction: row;">
		  <image src="/static/template/scroll-fold-nav/search.png" style="width: 15px;" mode="widthFix"></image>
		  <text class="search-tip-text">请输入你要搜索的内容</text>
		</view>
		<text class="search-btn">搜索</text>
	</view>

	<view v-for="(item,index) in list" :key="index" class="item">
		second content-{{item}}
	</view>

	<view v-for="(item,index) in list" :key="index" class="item">
		second content-{{item}}
	</view>

	</scroll-view>
</template>

<script>
  import ScrollEvent from 'io.dcloud.uniapp.runtime.ScrollEvent';
  export default {
    data() {
      return {
		list: ['1','2','3','4','5','6','7','8','9','10','11','12','13','14','15'],
		stickyTop: 0,
		stickyTran: 0,
        scrollTop: 0,
        stickyNode: null as INode | null
      }
    },
    methods: {
		onScroll(e : ScrollEvent) {
			if(e.detail.scrollTop > this.stickyTop){
				let stickyTran = e.detail.scrollTop - this.stickyTop;
				if(stickyTran!=this.stickyTran){
					this.stickyNode?.style?.setProperty('transform','translateY('+stickyTran+'px)');
				}
				this.stickyTran = stickyTran;
			}else{
				this.stickyNode?.style?.setProperty('transform','');
				this.stickyTran = 0;
			}
		},
      back(){
		uni.navigateBack({
		  success(result) {
		    console.log('navigateBack success', result.errMsg)
		  },
		  fail(error) {
		    console.log('navigateBack fail', error.errMsg)
		  },
		  complete(result) {
		    console.log('navigateBack complete', result.errMsg)
		  },
		})
      }
    },
    onLoad() {
    },
	onReady() {
		this.stickyNode = this.$refs['sticky'] as INode;
		// let rect = this.stickyNode?.getBoundingClientRect();
		// this.stickyTop = rect?.top;
		//this.stickyTop = this.stickyNode?.getBoundingClientRect()?.top;
		let rect = (this.$refs['sticky'] as INode).getBoundingClientRect();
		this.stickyTop = rect.top;
	}
  }
</script>

<style>
.page {
	flex: 1;
	background-color: azure;
}

.item {
	height: 100px;
}

.search {
	background-color: #FFFFFF;
	border: 1px solid #fbdf0d;
	height: 35px;
	border-radius: 100px;
	margin: 0 25rpx;
	padding: 8px;
	flex-direction: row;
	align-items: center;
	justify-content: space-between;
	z-index: 100;
}
.search-tip-text {
	font-size: 12px;
	color: #666;
}
.search-btn {
	font-size: 12px;
	background-color: #ff6900;
	color: #FFF;
	padding: 5px 8px;
	border-radius: 100px;
}

</style>