HarmonyOS 鸿蒙Next tab组件无法左对齐

Tab组件，无法左对齐，通过Scroll和Row组件用来实现一个页签，在onclick事件中通过修改索引值和Tabs组件的索引联动，实现切换效果，同时将Tabs的barHeight置为0

[@Entry](/user/Entry)

[@Component](/user/Component)

export default struct  SegmentTabView {

  private controller: TabsController = new TabsController()

  [@State](/user/State) tabs: string[] = ['新能源',"选车"];

  [@State](/user/State) currentIndex: number = 0;

  [@Builder](/user/Builder) TabBuilder(tabName: string, index: number) {

    Column() {

      Text(tabName)

        .fontColor(Color.Black)

        .fontSize(this.currentIndex === index ? 19 : 16)

        .fontWeight(this.currentIndex === index ? 800 : 400)

        .margin({left: 10, right: 10})

      Image($r('app.media.ic_normal'))

        .margin({top: 5})

        .width(17)

        .height(5)

        .visibility(this.currentIndex === index ? Visibility.Visible : Visibility.Hidden)

    }

    .justifyContent(FlexAlign.Center)

    .onClick(() => {

      this.currentIndex = index

      this.controller.changeIndex(index)

    })

  }

  build() {

    Column() {

      //自定义点击控件

      Scroll() {

        Row() {

          ForEach(this.tabs, (tabName: string, index: number) => {

            this.TabBuilder(tabName, index)

          })

        }.alignSelf(ItemAlign.Start)

      }.align(Alignment.Start)

      .scrollable(ScrollDirection.Horizontal)

      .scrollBar(BarState.Off)

      .width('100%')

     // 设置tabs高度为0隐藏

      Tabs({ barPosition: BarPosition.Start, controller: this.controller }) {

        ForEach(this.tabs, (item: number, index: number) => {

          TabContent() {

            Text('我是页面 ' + item + " 的内容")

              .fontSize(30)

          }

        })

      }.barHeight(0)

    }.width('100%')

  }

}