HarmonyOS Swiper组件的分页图标没法设置到底部

@Entry  
@Component  
export struct SwiperComponent {  
  private swiperController: SwiperController = new SwiperController()  
  @State currentIndex: number = 0;  
  @State swiperData: number[] = [1,2,3];  
  
  build() {  
    Column() {  
      Swiper(this.swiperController) {  
        Text('0')  
          .width('90%')  
          .height('50%')  
          .backgroundColor(Color.Gray)  
          .textAlign(TextAlign.Center)  
          .fontSize(30)  
        Text('1')  
          .width('90%')  
          .height('50%')  
          .backgroundColor(Color.Green)  
          .textAlign(TextAlign.Center)  
          .fontSize(30)  
        Text('2')  
          .width('90%')  
          .height('50%')  
          .backgroundColor(Color.Pink)  
          .textAlign(TextAlign.Center)  
          .fontSize(30)  
      }.indicator(false).autoPlay(true).onChange(index => {  
        this.currentIndex = index;  
      })  
  
      Row({ space: 10 }) {  
        ForEach(this.swiperData, (item: number, index: number) => {  
          Shape() {  
            Rect()  
              .width(50)  
              .height(10)  
              .radius(5)  
              .fill(index !== this.currentIndex ? Color.Black : Color.Red)  
              .fillOpacity(0.6)  
          }  
        })  
      }.margin({ top: 12 })  
    }.width('100%')  
  }  
}