HarmonyOS 在业务类中非UI组件中如何引用自定义builder？

Question

我们业务有自定义Alert，自定义alert的message是外部可传入的builder，使用代码如下：

PayAlertUtil.showTwoButtonsAlert({
  title: '温馨提示',
  customMessageBuilder: () => {
    EDCAlertMessageBuilder(param)
  },
  leftText: '取消',
  rightText: '确认支付',
  leftCallback: () => {
    LogTrace('edc_confirm_cancel', { type: 'click', clickName: 'edcAlertCancel', desc: '外卡服务费-取消' });
    param?.onCancel?.()
  },
  rightCallback: () => {
    LogTrace('edc_confirm_confirm', { type: 'click', clickName: 'edcAlertDoPay', desc: '外卡服务费-确认提交' });
    param?.onConfirm();
  }
});

其中EDCAlertMessageBuilder 在UI组件中，上午代码在业务类中

@Builder
export function  EDCAlertMessageBuilder(info:EDCDialogProps){
  EDCAlertMessage({info})
}

但是运行弹出alert会crash，crash日志如下：

Error message:Cannot read property observeComponentCreation2 of undefined
SourceCode:
  (parent ? parent : this).observeComponentCreation2((elmtId, isInitialRender, info = __info__) => {
    ^
    Stacktrace:
      at EDCAlertMessageBuilder (CTPay/CTPayBusiness/src/main/ets/components/AlertBuilder/AlertBuilder.ets:25:45)
    at customMessageBuilder (CTPay/CTPayBusiness/src/main/ets/business/bankCardBusiness.ets:1375:7)

Answer 1

可参考一下wrapBuilder：https://developer.huawei.com/consumer/cn/doc/harmonyos-guides-V5/arkts-wrapbuilder-0000001820879577-V5