#鸿蒙通关秘籍#如何优化HarmonyOS NEXT中的下拉刷新效果的性能？

PullToRefresh({
  customList: () => {
    this.getListView();
  },
})

@Builder
private getListView() {
  List({ scroller: this.scroller })
    .onScroll((scrollOffset: number)=>{
      // 仅执行必要的滚动操作
      this.imgMarginTop -= scrollOffset;
    })
    .onAreaChange((oldValue, newValue)=>{
      // 控制计算频率，确保性能优化
      this.refreshPullDownHeight = (this.windowHeight - (newValue.height as number)) / this.pullDownHeightRadix;
    })
    .scrollBar(BarState.Off)
    .edgeEffect(EdgeEffect.None)
}
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