HarmonyOS menu如何用代码控制隐藏

通过bindContextMenu，给组件绑定菜单，触发方式为控制绑定的isShown （文档示例7）参考地址：https://developer.huawei.com/consumer/cn/doc/harmonyos-references-V5/ts-universal-attributes-menu-V5#bindcontextmenu8

样例代码参考：

class classComponent {
  content: string = '';
  labelInfo: string = '';
}

@Entry
@Component
struct TestMenuPage {
  @State list1: Array<classComponent> = [{ content: '复制', labelInfo: "Ctrl+C" }, {
    content: "粘贴",
    labelInfo: "Ctrl+V"
  }];
  @State menuIsShow: boolean = false;
  @State menuBackGroundColor: Color = Color.White;
  @State menuIsDelete: boolean = false;

  @Builder
  MyMenu() {
    Menu() {
      ForEach(this.list1, (item: classComponent) => {
        MenuItem({ content: `${item.content}`, labelInfo: `${item.labelInfo}` })
      })
    }.visibility(this.menuIsDelete ? Visibility.None : Visibility.Visible)
  }

  build() {
    Column() {
      Column() {
        Button('点击').onClick(() => {
          this.menuIsShow = !this.menuIsShow;
        })
        Button('删除菜单').onClick(() => {
          this.list1 = []
          this.menuIsDelete = true
        })
      }
      .width('100%')
      .padding(20)
      .bindMenu(this.MyMenu)
      .bindContextMenu(this.menuIsShow, this.MyMenu(), {
        backgroundColor: this.menuIsDelete ? Color.Transparent : Color.White,
        backgroundColor: Color.White,
        backgroundBlurStyle: BlurStyle.NONE
      })
      .alignItems(HorizontalAlign.Start)
    }.height('100%')
  }
}
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