HarmonyOS video组件 设置自定义控制器时，全屏不显示控制器

// xxx.ets  
import { window } from '@kit.ArkUI'  
  
@Entry  
@Component  
struct VideoCreateComponent {  
  @State videoSrc: Resource = $rawfile('demo.mp4')  
  @State previewUri: Resource = $r('app.media.startIcon')  
  @State curRate: PlaybackSpeed = PlaybackSpeed.Speed_Forward_1_00_X  
  @State isAutoPlay: boolean = false  
  @State showControls: boolean = true  
  @State videoHeight: string = '600vp'  
  controller: VideoController = new VideoController()  
  @State windowClass:window.Window|undefined = undefined  
  aboutToAppear(): void {  
    window.getLastWindow(getContext(this)).then((window)=>{  
      this.windowClass = window  
    })  
  }  
  
  build() {  
    Stack() {  
      Video({  
        src: this.videoSrc,  
        previewUri: this.previewUri,  
        currentProgressRate: this.curRate,  
        controller: this.controller  
      })  
        .width('100%')  
        .height(this.videoHeight)  
        .autoPlay(this.isAutoPlay)  
        .controls(this.showControls)  
  
      Row() {  
        Button('controls').onClick(() => {  
          this.showControls = !this.showControls // 切换是否显示视频控制栏  
        }).margin(5)  
        Button('start').onClick(() => {  
          this.controller.start() // 开始播放  
        }).margin(5)  
        Button('pause').onClick(() => {  
          this.controller.pause() // 暂停播放  
        }).margin(5)  
        Button('fullscreen').onClick(async () => {  
          if(!this.windowClass){  
            return;  
          }  
          if(this.videoHeight === '100%'){  
            this.windowClass.setWindowLayoutFullScreen(false).then(()=>{  
              this.videoHeight = '600vp'  
            })  
          }else{  
            this.windowClass.setWindowLayoutFullScreen(true).then(()=>{  
              this.videoHeight = '100%'  
            })  
          }  
        }).margin(5)  
      }  
    }  
    .alignContent(Alignment.Bottom)  
  }  
}  
  
interface DurationObject {  
  duration: number;  
}  
  
interface TimeObject {  
  time: number;  
}
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