uniapp监听页面离开返回上一级实现数据刷新

  onUnload() {
    uni.$emit('refresh');
  },

onLoad(opts){
  console.log('opts',opts)
  uni.$on('refresh',() => {
    this.getWorkOrderUnShelveMaterialList()
  })
},
onUnload(){
  console.log('onUnload')
  uni.$off('refresh')
},