HarmonyOS 鸿蒙Next：tabs设置了.barMode(BarMode.Scrollable)但tabbar无法跟随滚动

// xxx.ets
[@Entry](/user/Entry)
[@Component](/user/Component)
struct TabsExample {
[@State](/user/State) fontColor: string = '#182431'
[@State](/user/State) selectedFontColor: string = '#007DFF'
[@State](/user/State) currentIndex: number = 0
private controller: TabsController = new TabsController()
@Builder tabBuilder(index: number, name: string) {
Column() {
Text(name)
.fontColor(this.currentIndex === index ? this.selectedFontColor : this.fontColor)
.fontSize(16)
.fontWeight(this.currentIndex === index ? 500 : 400)
.lineHeight(22)
.margin({ top: 17, bottom: 7 })
Divider()
.strokeWidth(2)
.color(’#007DFF’)
.opacity(this.currentIndex === index ? 1 : 0)
}.width(‘50%’)
}
build() {
Column() {
Tabs({ barPosition: BarPosition.Start, index: this.currentIndex, controller: this.controller }) {
TabContent() {
Column().width(‘100%’).height(‘100%’).backgroundColor(’#00CB87’)
}.tabBar(this.tabBuilder(0, ‘green’))
TabContent() {
Column().width(‘100%’).height(‘100%’).backgroundColor(’#007DFF’)
}.tabBar(this.tabBuilder(1, ‘blue’))
TabContent() {
Column().width(‘100%’).height(‘100%’).backgroundColor(’#FFBF00’)
}.tabBar(this.tabBuilder(2, ‘yellow’))
TabContent() {
Column().width(‘100%’).height(‘100%’).backgroundColor(’#E67C92’)
}.tabBar(this.tabBuilder(3, ‘pink’))
}
.vertical(false)
//设置滚动
.barMode(BarMode.Scrollable)
.barWidth(360)
.barHeight(56)
.animationDuration(400)
.onChange((index: number) => {
this.currentIndex = index
})
.width(360)
.height(296)
.margin({ top: 52 })
.backgroundColor(’#F1F3F5’)
}.width(‘100%’)
}
}<button style="position: absolute; padding: 4px 8px 0px; cursor: pointer; top: 8px; right: 8px; font-size: 14px;">复制</button>