滑动切换后,点击当前页面会回跳前一个项..怎么解决啊 about wx-scrollable-tab-view HOT 1 OPEN

handlerEnd(e) {
    let {clientX, clientY} = e.changedTouches[0];
    let endTime = e.timeStamp;
    let {tabs, stv, activeTab} = this.data;
    let {offset, windowWidth} = stv;
    //快速滑动
    if(endTime - this.tapStartTime <= 300) {
      //向左
      if(Math.abs(this.tapStartY - clientY) < 75) {
        if(this.tapStartX - clientX > 5) {
          if(activeTab < this.tabsCount -1) {
            this.setData({activeTab: ++activeTab})
          }
        } else if (this.tapStartX - clientX < -5) {
          if(activeTab > 0) {
            this.setData({activeTab: --activeTab})
          }
        }
        stv.offset = stv.windowWidth*activeTab;
      } else {
        //快速滑动 但是Y距离大于75 所以用户是左右滚动
        let page = Math.round(offset/windowWidth);
        if (activeTab != page) {
          this.setData({activeTab: page})
        }
        stv.offset = stv.windowWidth*page;
      }
    } else {
      let page = Math.round(offset/windowWidth);
      if (activeTab != page) {
        this.setData({activeTab: page})
      }
      stv.offset = stv.windowWidth*page;
    }
    stv.tStart = false;
    this.setData({stv: this.data.stv})
  },

else if (this.tapStartX - clientX < -5) {
          if(activeTab > 0) {
            this.setData({activeTab: --activeTab})
          }
        }