HarmonyOS 鸿蒙Next openCustomDialog，如何判断是否弹出

当前没有api可以获取openCustomDialog弹出状态，因为弹出dialog组件是可以设置不同的，所以判断openCustomDialog是否弹出，没有意义。

如果非要判断，可以通过openCustomDialog的生命周期回调进行判断。

示例：

import { promptAction } from '@kit.ArkUI';
import { BusinessError } from '@kit.BasicServicesKit';

@Component
struct Index {
  private customDialogComponentId: number = 0
  // 弹窗状态
  @State dialogStatus: boolean = false;

  @Builder
  customDialogComponent() {
    Column() {
      Text('弹窗').fontSize(30)
      Row({ space: 50 }) {
        Button("确认").onClick(() => {
          try {
            promptAction.closeCustomDialog(this.customDialogComponentId)
          } catch (error) {
            let message = (error as BusinessError).message;
            let code = (error as BusinessError).code;
            console.error(`closeCustomDialog error code is ${code}, message is ${message}`);
          }
        })
        Button("取消").onClick(() => {
          try {
            promptAction.closeCustomDialog(this.customDialogComponentId)
          } catch (error) {
            let message = (error as BusinessError).message;
            let code = (error as BusinessError).code;
            console.error(`closeCustomDialog error code is ${code}, message is ${message}`);
          }
        })
      }
    }.height(200).padding(5).justifyContent(FlexAlign.SpaceBetween)
  }

  build() {
    Row() {
      Column({ space: 20 }) {
        Text('组件内弹窗')
          .fontSize(30)
          .onClick(() => {
            promptAction.openCustomDialog({
              builder: () => {
                this.customDialogComponent()
              },
              onDidAppear: () => {
                this.dialogStatus = true;
                console.log('弹框弹出')
              },
              onDidDisappear: () => {
                this.dialogStatus = false;
                console.log('弹框消失')
              }
            }).then((dialogId: number) => {
              this.customDialogComponentId = dialogId
            })
              .catch((error: BusinessError) => {
                console.error(`openCustomDialog error code is ${error.code}, message is ${error.message}`)
              })
          })
      }
      .width('100%')
    }
    .height('100%')
  }
}