HarmonyOS 鸿蒙Next List onScrollVisibleContentChange 无效

// xxx.ets
[@Entry](/user/Entry)
[@Component](/user/Component)
struct Index {
  private arr: number[] = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  scroller: Scroller = new Scroller();
build() {
Column() {
List({ space: 20, initialIndex: 0 ,scroller: this.scroller}) {
ForEach(this.arr, (item: number) => {
ListItem() {
Text(’’ + item)
.width(‘100%’)
.height(100)
.fontSize(16)
.textAlign(TextAlign.Center)
.borderRadius(10)
.backgroundColor(0xFFFFFF)
}
}, (item: string) => item)
}
.listDirection(Axis.Vertical) // 排列方向
.scrollBar(BarState.Off)
.friction(0.6)
.divider({
strokeWidth: 2,
color: 0xFFFFFF,
startMargin: 20,
endMargin: 20
}) // 每行之间的分界线
.edgeEffect(EdgeEffect.Spring) // 边缘效果设置为Spring
.onScrollIndex((firstIndex: number, lastIndex: number, centerIndex: number) => {
console.info(‘first’ + firstIndex)
console.info(‘last’ + lastIndex)
console.info(‘center’ + centerIndex)
})
.onScrollVisibleContentChange((start: VisibleListContentInfo, end: VisibleListContentInfo) => {
console.log(’ start index: ’ + start.index +
’ start item group area: ’ + start.itemGroupArea +
’ start index in group: ’ + start.itemIndexInGroup)
console.log(’ end index: ’ + end.index +
’ end item group area: ’ + end.itemGroupArea +
’ end index in group: ’ + end.itemIndexInGroup)
})
.onDidScroll((scrollOffset: number, scrollState: ScrollState) => {
console.info(onScroll scrollState = ScrollState + scrollState + , scrollOffset = + scrollOffset)
})
.width(‘90%’)
}
.width(‘100%’)
.height(‘100%’)
.backgroundColor(0xDCDCDC)
.padding({ top: 5 })
}
}