HarmonyOS 自动横向滚动List？

Question

如题：HarmonyOS 自动横向滚动List？

Answer 1

可以参考以下代码，如需要自动滚动，使用setInterval调用scroller.scrollTo方法

class Article {
  id: string;
  title: string;
  brief: string;

  constructor(id: string, title: string, brief: string) {
    this.id = id;
    this.title = title;
    this.brief = brief;
  }
}

@Entry
@Component
struct ArticleListView {
  @State isListReachEnd: boolean = false;
  @State articleList: Array<Article> = [
    new Article('001', '第1篇文章', '文章简介内容'),
    new Article('002', '第2篇文章', '文章简介内容'),
    new Article('003', '第3篇文章', '文章简介内容'),
    new Article('004', '第4篇文章', '文章简介内容'),
    new Article('005', '第5篇文章', '文章简介内容'),
    new Article('006', '第6篇文章', '文章简介内容')
  ]

  loadMoreArticles() {
    this.articleList.push(this.articleList[0]);
    this.articleList.splice(0,1);
  }

  build() {
    Column({ space: 5 }) {
      List() {
        ForEach(this.articleList, (item: Article) => {
          ListItem() {
            ArticleCard({ article: item })
              .margin({ top: 20 })
          }
        }, (item: Article) => item.id)
      }
      .onReachEnd(() => {
        this.loadMoreArticles();
      })
      .padding(20)
      .scrollBar(BarState.Off)
    }
    .width('100%')
    .height('100%')
    .backgroundColor(0xF1F3F5)
  }
}

@Component
struct ArticleCard {
  @Prop article: Article;

  build() {
    Row() {
      Image($r('app.media.startIcon'))
        .width(80)
        .height(80)
        .margin({ right: 20 })
      Column() {
        Text(this.article.title)
          .fontSize(20)
          .margin({ bottom: 8 })
        Text(this.article.brief)
          .fontSize(16)
          .fontColor(Color.Gray)
          .margin({ bottom: 8 })
      }
      .alignItems(HorizontalAlign.Start)
      .width('80%')
      .height('100%')
    }
    .padding(20)
    .borderRadius(12)
    .backgroundColor('#FFECECEC')
    .height(120)
    .width('100%')
    .justifyContent(FlexAlign.SpaceBetween)
  }
}

可以参考以下案例实现https://gitee.com/harmonyos-cases/cases/tree/master/CommonAppDevelopment/feature/marquee