HarmonyOS 自定义弹窗在页面中显示时，如何防止用户侧滑关闭自定义弹窗

目前想要实现防止用户侧滑关闭自定义弹窗的效果需要基于Navigation实现自定义弹窗，然后设置.onBackPressed((): boolean => true)

//demo
// Index.ets
@Component
struct Dialog01 {

  @Consume('pageInfos') pageInfos: NavPathStack;

  build() {
    NavDestination() {
      Stack() {
        Column()
          .width('100%')
          .height('100%')
          .backgroundColor(Color.Gray)
          .opacity(0.1)

        // Add controls for business processing
        Column() {
          Text('Dialog01')
            .fontSize(30)
            .fontWeight(2)
        }
        .padding(10)
        .width(250)
        .backgroundColor(Color.White)
        .borderRadius(10)
      }
    }
    .onBackPressed((): boolean => true)
    .hideTitleBar(true)
    // Set the mode property of this NavDestination to DIALOG
    .mode(NavDestinationMode.DIALOG)
  }
}

@Entry
@Component
struct Index {
  @Provide('pageInfos') pageInfos: NavPathStack = new NavPathStack()
  isLogin: boolean = false;

  @Builder
  PagesMap(name: string) {
    if (name == 'Dialog01') {
      Dialog01()
    }
  }

  build() {
    Navigation(this.pageInfos) {
      Button('push Dialog01')
        .width('80%')
        .onClick(() => {
          this.pageInfos.pushPathByName('Dialog01', '');
        })

    }
    .mode(NavigationMode.Stack)
    .titleMode(NavigationTitleMode.Mini)
    .title('主页')
    .navDestination(this.PagesMap)
  }
}
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