HarmonyOS binsheet拉起UIExtension时，UIAbility中用了TextArea组件显示长文本。滚动文本时，bindsheet页面也会跟随下滑，有什么办法仅让文本滚动，bindSheet页面高度保持？

尝试不用UIExtension，直接bindSheet拉起页面布局，此时TextArea组件可以滚动显示文本，bindSheet页面保持高度不受影响。

为什么用UIExtension就会导致bindSheet页面和TextArea文本同时滚动的bug

拉起方：

import prompt from '@ohos.prompt'
import { Button } from '@ohos.multimodalInput.mouseEvent';
@Entry
@Component
struct Second {
  @State message1: string = '大江东去，浪淘尽，千古风流人物。故垒西边，人道是：三国周郎赤壁。乱石崩云，惊涛裂岸，卷起千堆雪。江山如画，一时多少豪杰。'
  @State visible: Visibility = Visibility.Hidden
  private proxy: UIExtensionProxy | null = null;
  @State isShow:boolean = false
  @Builder myBuilder() {
    Column() {
      UIExtensionComponent({
        bundleName : "com.example.controllablebuildcomponent",
        abilityName: "UIExtensionProvider",
        parameters: {
          "ability.want.params.uiExtensionType": "sys/commonUI"
        }
      })
        .width('98%')
        .height('98%')
        .onResult((data)=>{
          console.log("fengsumei: onResult data : " + JSON.stringify(data))
        })
        .onRelease((code)=>{
          console.log("release code : " + code)
        })
        .onReceive((data) => {
          console.log("onReceive data : " + JSON.stringify(data))
        })
        .onRemoteReady((proxy) => {
          console.info('onRemoteReady, for test')
          this.proxy = proxy
          this.proxy.off("asyncReceiverRegister");
        })
      // .hitTestBehavior(HitTestMode.None)
    }
    .width('100%')
  }

  build() {
    Row() {
      Column() {
        Text(this.message1)
          .fontSize(20)
          .margin(20)
          .copyOption(CopyOptions.InApp)
          .onClick((event?: ClickEvent) => {
            console.log("fengsumei: ClickEvent!")
          })
          .textMenuOptions([{content:"Creative",action:(selectContent: string)=>{
            console.log("selectContent: " + selectContent)
            this.isShow = true
          }}])
          .bindSheet($$this.isShow, this.myBuilder(),{
            showClose: false,
            shouldDismiss:((sheetDismiss: SheetDismiss)=> {
              console.log("bind sheet shouldDismiss")
              sheetDismiss.dismiss()
            }),
          })
      }
      .width('100%')
      .height('100%')
    }
    .height('100%')
  }
}
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被拉起的应用中有问题的界面代码：

Tabs({ barPosition: BarPosition.End, controller: this.tabsController, index: this.currentIndex }) {
  TabContent() {
    TextArea({
      text: this.textResult,
      controller: this.textAreaController
    })
      .width('100%')
      .height('100%')
      .fontSize(16)
      .fontColor('#182431')
      .backgroundColor('#FFFFFF')
      .copyOption(CopyOptions.LocalDevice)
      .lineSpacing(LengthMetrics.px(20))
      .letterSpacing(2)
      .onChange((value: string) => {
        this.textResult = value
      })
      .onTouch((event: TouchEvent)=>{
        console.debug(TAG, "TextArea Touch!")
        // event.stopPropagation()
      })
      .onContentScroll(()=>{
        console.debug(TAG, "TextArea content scroll!")
      })
  }
  .backgroundColor('#FFFFFF')
  .borderRadius(15)
  .margin({ left: 2, right: 2 })

  TabContent() {
    TextArea({
      text: 'this.textResult 222',
      controller: this.textAreaController
    })
      .width('100%')
      .height('100%')
      .fontSize(16)
      .fontColor('#182431')
      .backgroundColor('#FFFFFF')
      .copyOption(CopyOptions.LocalDevice)
      .lineSpacing(LengthMetrics.px(20))
      .letterSpacing(2)
      .onChange((value: string) => {
        // this.textResult = value
      })
  }
  .backgroundColor('#FFFFFF')
  .borderRadius(15)
  .margin({ left: 2, right: 2 })

  TabContent() {
    TextArea({
      text: 'this.textResult 333',
      controller: this.textAreaController
    })
      .width('100%')
      .height('100%')
      .fontSize(16)
      .fontColor('#182431')
      .backgroundColor('#FFFFFF')
      .copyOption(CopyOptions.LocalDevice)
      .lineSpacing(LengthMetrics.px(20))
      .letterSpacing(2)
      .onChange((value: string) => {
        // this.textResult = value
      })
  }
  .backgroundColor('#FFFFFF')
  .borderRadius(15)
  .margin({ left: 2, right: 2 })
}
.vertical(false)
.barHeight(0)
.onChange((index: number) => {
  this.currentIndex = index
  if (index == 0) {
    this.previousSource = $r('app.media.ic_arrow_previous_off')
    this.nextSource = $r('app.media.ic_arrow_next_on')
  } else if (index == this.totalPageNums - 1) {
    this.previousSource = $r('app.media.ic_arrow_previous_on')
    this.nextSource = $r('app.media.ic_arrow_next_off')
  } else {
    this.previousSource = $r('app.media.ic_arrow_previous_on')
    this.nextSource = $r('app.media.ic_arrow_next_on')
  }
})
.scrollable(true)
.width('85%')
.height('85%')
.animationDuration(400)
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