HarmonyOS listItem的问题

List({ space: 0, initialIndex: 0, scroller: this.scrollerForList }) {  
  ForEach(this.dataArray, (item: NodeModel) => {  
    ListItem() {  
      AliyunPlayerPage({  
        playerModel: item.playerModel,  
        fullScreenStatus: $fullScreenStatus,  
        playerController: this.playerController  
      })  
        .width('100%')  
        .height('100%')  
        .position({ 'x': item.playerModel.x, 'y': 0 })  
    }  
    .width('100%')  
    .height('100%')  
  }, (item: number) => JSON.stringify(item))  
}  
.chainAnimation(true)  
.edgeEffect(EdgeEffect.Spring)  
.listDirection(Axis.Vertical)  
.height('100%')  
.width('100%')  
.scrollBar(BarState.Off)  
.scrollSnapAlign(ScrollSnapAlign.CENTER)  
.backgroundColor(0xDCDCDC)