页面tab切换后 longpress事件失效

列表页面顶部使用了u-tab切换。列表卡片绑定了longpress事件，一开始可以，切花tab或者执行过一次longpress事件后就无法在执行了。

<nav-tabs :list="tabList" :current="0" @change="tabChange" />  
    <view v-if="tabType === tabList[0].type && regularWorkList.length" class="list">  
      <regular-work-list-item  
        v-for="item in regularWorkList"  
        :key="item.id"  
        :item-data="item.basicInfo"  
        @click.native="enterRegularWorkDetail(item)"  
        @longpress.native.capture="showDeleteConfirm(item)"  
      >  
        <view slot="bottom" class="bottom-btn">  
          <view  
            v-if="isShowDiscontinue(item.basicInfo)"  
            @click.stop="discontinueTask(item)"  
            class="operate-btn"  
          >  
            中止  
          </view>  
        </view>  
      </regular-work-list-item>  
    </view>