HarmonyOS Tabs组件做沉浸式失败

build() {  
  Column() {  
    Tabs({ barPosition: BarPosition.End, controller: this.controller }) {  
      TabContent() {  
        Column().width('100%').height('100%').backgroundColor(Color.Pink)  
          .expandSafeArea([SafeAreaType.SYSTEM], [SafeAreaEdge.TOP, SafeAreaEdge.BOTTOM, SafeAreaEdge.START, SafeAreaEdge.END])  
      }.tabBar(BottomTabBarStyle.of($r("sys.media.ohos_app_icon"), "1"))  
      .expandSafeArea([SafeAreaType.SYSTEM], [SafeAreaEdge.TOP, SafeAreaEdge.BOTTOM, SafeAreaEdge.START, SafeAreaEdge.END])  
  
      TabContent() {  
        Column().width('100%').height('100%').backgroundColor(Color.Green)  
          .expandSafeArea([SafeAreaType.SYSTEM], [SafeAreaEdge.TOP, SafeAreaEdge.BOTTOM, SafeAreaEdge.START, SafeAreaEdge.END])  
      }.tabBar(BottomTabBarStyle.of($r("sys.media.ohos_app_icon"), "2"))  
  
      TabContent() {  
        Column().width('100%').height('100%').backgroundColor(Color.Blue)  
          .expandSafeArea([SafeAreaType.SYSTEM], [SafeAreaEdge.TOP, SafeAreaEdge.BOTTOM, SafeAreaEdge.START, SafeAreaEdge.END])  
      }.tabBar(BottomTabBarStyle.of($r("sys.media.ohos_app_icon"), "3"))  
    }  
    .width(HyScreen.FULL_SCREEN)  
    .animationDuration(300)  
    .onTabBarClick((index: number) => {  
    })  
  }  
  .backgroundColor(HyColors.FillsRed)  
  .expandSafeArea([SafeAreaType.SYSTEM], [SafeAreaEdge.TOP, SafeAreaEdge.BOTTOM, SafeAreaEdge.START, SafeAreaEdge.END])  
  
}