HarmonyOS 要做一个可以无限滚动的list

class Item {  
  img: ResourceStr = ''  
  title?: string = ''  
}  
@Entry  
@Component  
struct Index {  
  index: number = 0  
  @State NoteLists: Array<Item> = [  
    {  
      img: $r('app.media.app_icon'),  
      title: '头像1号'  
    },  
    {  
      img: $r('app.media.app_icon'),  
      title: '头像2号'  
    },  
    {  
      img: $r('app.media.app_icon'),  
      title: '头像3号'  
    },  
    {  
      img: $r('app.media.app_icon'),  
      title: '头像4号'  
    },  
    {  
      img: $r('app.media.app_icon'),  
      title: '头像5号'  
    },  
    {  
      img: $r('app.media.app_icon'),  
      title: '头像6号'  
    }  
  ]  
  scroller: Scroller = new Scroller()  
  build() {  
    Row() {  
      Column() {  
        Scroll(this.scroller) {  
          Row() {  
            ForEach(this.NoteLists, (item: Item) => {  
              Column() {  
                Image(item.img)  
                  .width(50).height(50)  
                Text(item.title)  
              }.width(80).height(80).justifyContent(FlexAlign.SpaceBetween)  
            })  
          }  
        }.width('100%')  
        .scrollable(ScrollDirection.Horizontal)  
        .scrollBar(BarState.Off)  
      }  
      .width('100%')  
    }  
    .height('100%')  
  }  
  onPageShow() {  
    setInterval(() => {  
      // 点击后滑动到指定位置，即下滑100.0vp的距离  
      if (this.index == 6) {  
        this.index = 0  
      }  
      console.log("index is:" + this.index)  
      let currentIndex: number = this.index;  
      let xOffset: number = this.scroller.currentOffset().xOffset;  
      this.NoteLists.push(this.NoteLists[currentIndex]);  
      this.index = currentIndex + 1;  
      this.scroller.scrollTo({ xOffset: xOffset + 10, yOffset: 0 })  
    }, 100)  
  }  
}