onLoad:function(){

    this.setData({

      xHeight:400

    })

    this.setData({

      xEnabled:true,

    })

    const arr = []

    for (let i = 0; i < 100; i++) arr.push(i)

    this.setData({

      arr

    })    

  },

    默认交互动画：

<scroll-view

  scroll-y style="width: 100%; height: {{xHeight}}px;"

  refresher-enabled="{{xEnabled}}"

  refresher-threshold="{{100}}"

  refresher-default-style="white"

  refresher-background="lightgreen"

  refresher-triggered="{{triggered}}"

  bindrefresherpulling="onPulling"

  bindrefresherrefresh="onRefresh"

  bindrefresherrestore="onRestore"

  bindrefresherabort="onAbort"

>