HarmonyOS 循环水平滚动

可以参考以下链接：https://developer.huawei.com/consumer/cn/doc/harmonyos-guides-V5/arkts-layout-development-create-looping-V5#循环播放

示例参考如下：

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 + 20, yOffset: 0 })
    }, 100)
  }
}
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