HarmonyOS 鸿蒙Next 关于生命周期问题

HarmonyOS 鸿蒙Next 关于生命周期问题 如下页面：

@ComponentV2
struct CertificateTabContentComp {
  @Param list: ConditionPeopleModel[] = []
  controller: StateController = new StateController()

  onDidBuild(): void {
    if (ArrayUtil.isNotEmpty(this.list)) {
      this.controller.content()
    } else {
      this.controller.empty()
    }
  }

  build() {
    StateLayout({
      controller: this.controller, 
      contentBuilder: () => {
        this.certificateBuilder()
      }
    })
  }

  @Builder
  certificateBuilder() {
    List() {
      ForEach(this.list, (item: ConditionPeopleModel) => {
        ListItem() {
          Text(item.CategoryName)
            .fontColor(Colors.Color33)
            .fontSize(16)
            .padding(12)
            .backgroundColor(Color.White)
            .fontWeight(FontWeight.Bold)
            .ellipsisMode(EllipsisMode.END)
            .textOverflow({ overflow: TextOverflow.Ellipsis })
            .maxLines(2)
        }.width('100%').backgroundColor(Color.White)
      })
    }.width('100%').height('100%')
  }
}

StateLayout大致如下:

@ComponentV2
export struct StateLayout {
  @Param controller: StateController = new StateController()

  onDidBuild(): void {
    if (this.controller) {
      this.controller.loadingEvent = this.loading
      this.controller.emptyEvent = this.empty
      this.controller.errorEvent = this.error
      this.controller.networkErrorEvent = this.networkError
      this.controller.contentEvent = this.content
    }
  }

  build() {
    Column() {
      if (this.localState == StateEnum.LOADING) {
        if (GlobalStateConfig.globalLoadingBuilder) {
          GlobalStateConfig.globalLoadingBuilder.builder({
            loadingStr: this.localLoadingStr,
            progressColor: this.localProgressColor
          })
        } else {
          this.DefaultLoadingBuilder()
        }
      } else if (this.localState == StateEnum.EMPTY) {
        if (GlobalStateConfig.globalEmptyBuilder) {
          GlobalStateConfig.globalEmptyBuilder.builder({ emptyStr: this.localEmptyStr, emptyIcon: this.localEmptyIcon })
        } else {
          this.DefaultEmptyBuilder()
        }
      } else if (this.localState == StateEnum.ERROR) {
        if (GlobalStateConfig.globalErrorBuilder) {
          GlobalStateConfig.globalErrorBuilder.builder({
            errorStr: this.localErrorStr,
            errorIcon: this.localErrorIcon,
            retryStr: this.localRetryStr,
            retry: this.priorityRetry ?? this.retry,
            showLoadingWhenRetry: this.showLoadingWhenRetry
          })
        } else {
          this.DefaultErrorBuilder()
        }
      } else if (this.localState == StateEnum.NETWORK_ERROR) {
        if (GlobalStateConfig.globalNetworkBuilder) {
          GlobalStateConfig.globalNetworkBuilder.builder({
            networkErrorStr: this.localNetworkErrorStr,
            networkErrorIcon: this.localNetworkErrorIcon,
            retryStr: this.localRetryStr,
            retry: this.priorityRetry ?? this.retry,
            showLoadingWhenRetry: this.showLoadingWhenRetry
          })
        } else {
          this.DefaultNetworkErrorBuilder()
        }
      } else {
        this.contentBuilder()
      }
    }.alignItems(HorizontalAlign.Center).justifyContent(FlexAlign.Center).layoutWeight(1)
  }
}

问题在于， 我的controller.empty 应该写在哪里？ 目前不管是onDidBuilder还是aboutToAppear中， 如果没有延迟， 会导致 页面还没绘制完成， 导致controller控制无效 StateLayout是一个开源框架: https://ohpm.openharmony.cn/#/cn/detail/@chawloo%2Fstate-layout