HarmonyOS鸿蒙Next中使用promptAction.openCustomDialog弹出弹窗，为什么设置了圆角不生效？永远是直角？

HarmonyOS鸿蒙Next中使用promptAction.openCustomDialog弹出弹窗，为什么设置了圆角不生效？永远是直角？

效果如图：

弹窗代码：

import * as pag from '@tencent/libpag'
import { PAGView } from '@tencent/libpag'
import { common } from '@kit.AbilityKit';
import { PromptActionClass } from './PromptActionClass';

@Component
export struct AIDialog {
@Prop text:string
  @State bgPagViewController: pag.PAGViewController = new pag.PAGViewController();
  @State xiaoshuPagViewController: pag.PAGViewController = new pag.PAGViewController();
  private context: common.UIAbilityContext = this.getUIContext().getHostContext() as common.UIAbilityContext;

  async aboutToAppear(): Promise<void> {
    let backgroundAnimationPath = this.context.resourceDir + "/bgAnimation.pag";
    // LoadFromPathAsync()可以加载网络或者本地文件
    let bgfile = await pag.PAGFile.LoadFromPathAsync(backgroundAnimationPath)
    this.bgPagViewController.setComposition(bgfile);
    this.bgPagViewController.setRepeatCount(0);
    this.bgPagViewController.play();

    let xiaoshufile = this.context.resourceDir + "/speak_bmp.pag";
    let file = await pag.PAGFile.LoadFromPathAsync(xiaoshufile)
    this.xiaoshuPagViewController.setComposition(file);
    this.xiaoshuPagViewController.setRepeatCount(0);
    this.xiaoshuPagViewController.play();
  }

  build() {
      RelativeContainer() {
        PAGView({
          controller: this.bgPagViewController
        })
          .alignRules({
            top: { anchor: "__container__", align: VerticalAlign.Top },
            bottom: { anchor: "__container__", align: VerticalAlign.Bottom },
            left: { anchor: "__container__", align: HorizontalAlign.Start },
            right: { anchor: "__container__", align: HorizontalAlign.End }
          })

        Column() {
          // 主要内容区域
          Row() {
            // 动画和文本的水平布局
            Row() {
              // 动画视图
              PAGView({ controller: this.xiaoshuPagViewController })
                .width(40)
                .height(40)
                .margin({ right: 12 })

              // 监听状态文本
              Text('小舒正在听...')
                .fontSize(14)
                .fontColor('#CCCCCC')
                .fontWeight(400)

            }
            .alignItems(VerticalAlign.Center)
            .justifyContent(FlexAlign.Start)

            Blank()

            // 右侧按钮区域
            Row() {
              // 设置按钮
              Text('设置')
                .fontSize(14)
                .fontWeight(400)
                .fontColor('#CCCCCC')
                .onClick(() => {
                  // 设置按钮点击事件
                })

              Divider()
                .vertical(true)
                .strokeWidth(1)
                .color('#FFFFFF')
                .margin({ left: 16, right: 12 })
                .height(10)

              // 关闭按钮
              Image($r('app.media.close'))
                .width(24)
                .height(24)
                .onClick(() => {
                  // 关闭按钮点击事件
                  PromptActionClass.closeDialog()
                })
            }
            .alignItems(VerticalAlign.Center)
          }
          .width('100%')
          .justifyContent(FlexAlign.SpaceBetween)
          .alignItems(VerticalAlign.Center)


          Text('可以试试对我说')
            .fontSize(14)
            .fontWeight(400)
            .fontColor('#CCCCCC')
            .margin({ top: 12 })

          Text('我在听你请说')
            .fontSize(20)
            .fontWeight(500)
            .fontColor('#FFFFFF')
            .margin({ top: 8 })
        }
        .width('100%')
        .padding({
          top: 16,
          bottom: 24,
          left: 16,
          right: 16
        })
        .alignItems(HorizontalAlign.Center)
        .alignRules({
          top: { anchor: "__container__", align: VerticalAlign.Top },
          bottom: { anchor: "__container__", align: VerticalAlign.Bottom },
          left: { anchor: "__container__", align: HorizontalAlign.Start },
          right: { anchor: "__container__", align: HorizontalAlign.End }
        })
      }
    .constraintSize({ minHeight: 72, maxHeight: 174 })
    .borderRadius(12)
    .margin({ left: 8, right: 8 })
  }
}

// Index.ets
import { ComponentContent } from '@kit.ArkUI';
import { AIDialog } from '../components/AIDialog';
import { PromptActionClass } from '../components/PromptActionClass';


class Params {
  text: string = "";
  constructor(text: string) {
    this.text = text;
  }
}


@Builder
function buildText(param:Params) {
  AIDialog()
}


@Entry
@Component
struct Index {
  @State message: string = "hello";
  private ctx: UIContext = this.getUIContext();
  private contentNode: ComponentContent<Object> =
    new ComponentContent<Params>(this.ctx, wrapBuilder<[Params]>(buildText), new Params(this.message),);


  aboutToAppear(): void {
    PromptActionClass.setContext(this.ctx);
    PromptActionClass.setContentNode(this.contentNode);
    PromptActionClass.setOptions({ alignment: DialogAlignment.Top, offset: { dx: 0, dy: 50 } ,isModal:false});
  }


  build() {
    Row() {
      Column() {
        Button("open dialog ")
          .margin({ top: 50 })
          .onClick(() => {
            PromptActionClass.openDialog();
          })
      }
      .width('100%')
      .height('100%')
    }
    .height('100%')
  }
}