pull up and load, pull down and refresh. Do not use better-scroll. This is only a castrated version of iscroll. It is recommended that a domestic mescroll
http://www.mescroll.com/

you need to listen for data
watch: {

       data(val){
           this.$nextTick(() => {
                   this.scroll.refresh()
                   this.scroll.finishPullUp()
           })
       }

}