scroll-view横向滚动scroll-x="true"时候,设置scroll-into-view无效

<scroll-view class="dateList" scroll-x="true" scroll-into-view="{{leftId}}">
   <view class="item" wx:for="{{dates}}" wx:key="{{index}}" id="id{{index}}">
      <view class="week">{{item.week}}</view>
      <view class="date">
         <view class="day">{{item.day}}</view>
      </view>
   </view>
</scroll-view>

dates是load之后请求获取的,leftId的设置是在dates数据的回调函数里面设置的

this.setData({leftId:"id10"});

样式

.dateList {
   padding: 10 rpx;
   background-color: #fff;
   white-space: nowrap;
   box-sizing: border-box;
   height: 160 rpx;
   color: #666;
   font-size: 0;
}

代码是上面这些,但是设置之后无任何效果