uniapp中scroll-view初始化的时候 无法横向滚动到某个为止

项目需求 实现日历（13天）默认高亮第六天 并定位到第六 左边右边各六天（可以滑动）

直接上代码

<template>
	<scroll-view  class="scroll-X"
	:show-scrollbar="true" 
	:scroll-x="scrollable"
	:scroll-left='scrollLeft' scroll-with-animation>
		<view class='item ' :class='{active:isTabActive==index}' v-for="(item,index) in tabRl" :key='index'
						@click='rlChangeFn(item,index)' >
						<text class='tit'>{{item.weekdayName}} </text>
						<text class='tx'>{{item.patrolDate}} </text>
					</view>
	</scroll-view>
</template>
<script>
export default {
		data() {
			return {
				scrollable:true,//横向滚动
				scrollLeft:0,//横向定位的默认位置 直接设置其他值不会定位到那个点
				isTabActive:6,//默认第几个高亮
				tabRl:[ //假设这些为后台请求回来的数据
					  {
					    "count": null,
					    "weekdayName": "星期五",
					    "patrolDate": "2024-04-12"
					  },
					  {
					    "count": null,
					    "weekdayName": "星期六",
					    "patrolDate": "2024-04-13"
					  },
					  {
					    "count": null,
					    "weekdayName": "星期日",
					    "patrolDate": "2024-04-14"
					  },
					  {
					    "count": "2",
					    "weekdayName": "星期一",
					    "patrolDate": "2024-04-15"
					  },
					  {
					    "count": "49",
					    "weekdayName": "星期二",
					    "patrolDate": "2024-04-16"
					  },
					  {
					    "count": "50",
					    "weekdayName": "星期三",
					    "patrolDate": "2024-04-17"
					  },
					  {
					    "count": "59",
					    "weekdayName": "星期四",
					    "patrolDate": "2024-04-18"
					  },
					  {
					    "count": "46",
					    "weekdayName": "星期五",
					    "patrolDate": "2024-04-19"
					  },
					  {
					    "count": "46",
					    "weekdayName": "星期六",
					    "patrolDate": "2024-04-20"
					  },
					  {
					    "count": "46",
					    "weekdayName": "星期日",
					    "patrolDate": "2024-04-21"
					  },
					  {
					    "count": "47",
					    "weekdayName": "星期一",
					    "patrolDate": "2024-04-22"
					  },
					  {
					    "count": "46",
					    "weekdayName": "星期二",
					    "patrolDate": "2024-04-23"
					  },
					  {
					    "count": null,
					    "weekdayName": "星期三",
					    "patrolDate": "2024-04-24"
					  }
					]
			}
		},
		onShow() {
			this.scrollLeft=800//或者onLoad设置滚动的位置 否则无法定位到某个为止 这个值根据实际情况进行填写 我的项目计算出来时800
		}，
		methods：{
			rlChangeFn(item,index){
				this.isTabActive=index
				//.....
			}
		}
		
}
</script>
<style lang="scss">
.scroll-X {
				width: 500rpx; //自己根据实际情况设置
				height: 45rpx;
				border: 1rpx solid #D0D0D0;
				border-radius: 45rpx;
				overflow: hidden;
				white-space: nowrap; //**** 必须设置为这个 否则肯呢个会出现问题
				.item {
					display: inline-block;  //**** 必须设置为这个 否则肯呢个会出现问题
					padding: 10rpx 0;
					box-sizing: border-box;
					height: 100%;
					background: #FFFFFF;
					color: #333333;
					width: 100rpx;
					border-right: 1px solid #D0D0D0;
					.tit {
						display: block;
						text-align: center;
						width: 100%;
						font-size: 11rpx;
						color: #333333;
						width: 100%;
					}
				
					.tx {
						display: block;
						text-align: center;
						font-size: 11rpx;
						color: #333333;
					}
				}
				
				.active {
					background: #1765A6;
					.tit,
					.tx {
						color: #fff;
					}
				}
}
</style>