自定义弹窗（CustomDialog）可以配置显示在Window上还是当前view吗？

DialogFirst.ets  
import { router } from '@kit.ArkUI';  
  
@Entry  
@Component  
struct DialogFirst {  
  @State textValue: string = '请阅读隐私协议'  
  // 显隐控制设置为不占用  
  @State visible: Visibility = Visibility.None  
  
  onPageShow() {  
    const params = router.getParams() as Record<string, string>; // 获取传递过来的参数对象  
    if (params) {  
      this.textValue = params.info as string; // 获取info属性的值  
    }  
  }  
  
  build() {  
    Stack() {  
      // 初始页面  
      Row() {  
        Column() {  
          Text('Hello World')  
            .fontSize(50)  
            .fontWeight(FontWeight.Bold)  
          Button('click')  
            .onClick(() => {  
              console.log("hit me!")  
              if (this.visible == Visibility.Visible) {  
                this.visible = Visibility.None  
              } else {  
                this.visible = Visibility.Visible  
              }  
            })  
            .backgroundColor(0x777474)  
            .fontColor(0x000000)  
        }  
        .width('100%')  
      }  
      .height('100%')  
      .backgroundColor(0x885555)  
  
      //加了一个半透明灰色的蒙层效果  
      Text('')  
        .onClick(() => {  
          if (this.visible == Visibility.Visible) {  
            this.visible = Visibility.None  
          } else {  
            this.visible = Visibility.Visible  
          }  
        })  
        .width('100%')  
        .height('100%')  
        .opacity(0.16)  
        .backgroundColor(0x000000)  
        .visibility(this.visible)