#鸿蒙通关秘籍#如何使用ArkUI创建多层级轮播图？

使用ArkUI中的Stack和LazyForEach组件来创建多层级轮播图。以下是完整的代码示例，展示如何实现轮播图布局、绑定数据源，以及添加滑动手势动画切换效果。

ts Stack() { LazyForEach(this.swiperDataSource, (item: SwiperData, index: number) => { Stack({ alignContent: Alignment.BottomStart }) { Image(item.imageSrc) .objectFit(ImageFit.Auto) .width('100%') .height('100%') .borderRadius($r('app.string.main_page_top_borderRadius'))

  Stack() {
    Column() {}
    .width('100%')
    .height('100%')
    .backgroundColor(Color.Black)
    .opacity(0.3)
    .borderRadius({
      topLeft: 0,
      topRight: 0,
      bottomLeft: $r('app.string.swipercomponent_main_page_top_borderRadius'),
      bottomRight: $r('app.string.swipercomponent_main_page_top_borderRadius')
    })

    Text(item.name)
      .width('100%')
      .height('100%')
      .fontSize(16)
      .fontColor(Color.White)
      .textAlign(TextAlign.Start)
      .padding($r('app.string.swipercomponent_main_page_padding5'))
  }
  .height('17%')
}
.gesture(
  PanGesture({ direction: PanDirection.Horizontal })
    .onActionStart((event: GestureEvent) => {
      startAnimation(event.offsetX < 0);
    })
)

}) }

function startAnimation(isLeft: boolean): void { animateTo({ duration: 300, }, () => { let dataLength: number = this.swiperData.length; let tempIndex: number = isLeft ? this.currentIndex + 1 : this.currentIndex - 1 + dataLength; this.currentIndex = tempIndex % dataLength; }) }