如何实现RichEditor和Component成为一个整体

@Entry 
@Component 
struct Index { 
  editorController = new RichEditorController() 
  scroller: Scroller = new Scroller() 
 
  build() { 
    Column() { 
      Scroll(this.scroller) { 
        Column() { 
          Image($r('app.media.startIcon')) 
            .width('100%') 
            .height(200) 
            .margin({ bottom: 20 }) 
          RichEditor({ controller: this.editorController }) 
            .id('RichEditor') 
            .width('100%') 
            .backgroundColor(Color.Yellow) 
            .onReady(() => { 
              this.editorController.addImageSpan($r("app.media.startIcon"), 
                { 
                  imageStyle: 
                  { 
                    size: ["100px", "100px"] 
                  } 
                }) 
              this.editorController.addTextSpan('男生女生向前冲', 
                { 
                  style: 
                  { 
                    fontColor: Color.Blue, 
                    fontSize: 30 
                  } 
                }) 
            }) 
            .onAreaChange((_, value) => { 
              if (_.height !== value.height) { 
                this.scroller.scrollBy(0, Number(value.height) - 200) 
              } 
            }) 
          Button('getSpans-文字').onClick((event: ClickEvent) => { 
            let getSpans = this.editorController.getSpans({ start: 0 }) 
            // 必须进行强转才能获取文字信息或者图片信息 
            let span0 = getSpans[0] as RichEditorTextSpanResult 
          }) 
          Button('getSpans-图片').onClick((event: ClickEvent) => { 
            let getSpans = this.editorController.getSpans({ start: 0 }) 
            let span1 = getSpans[1] as RichEditorImageSpanResult 
          }) 
          Button('RichEditor获焦').onClick(() => { 
            focusControl.requestFocus('RichEditor') 
          }) 
        } 
      } 
      .scrollable(ScrollDirection.Vertical) // 滚动方向纵向 
      .scrollBar(BarState.On) // 滚动条常驻显示 
      .scrollBarColor(Color.Gray) // 滚动条颜色 
    } 
  } 
}