HarmonyOS 可滚动组件的惯性衰减偏移修正

import display from '@ohos.display'; 
 
@Entry 
@Component 
struct page { 
 screenH: number = 0 
 private arr: number[] = [] 
 private scroller: Scroller = new Scroller() 
 
 aboutToAppear(): void { 
  let displayClass: display.Display | null = null; 
  displayClass = display.getDefaultDisplaySync() 
  this.screenH = px2vp(displayClass.height) 
  for (let i = 0; i < 50; i++) { 
   this.arr.push(i) 
  } 
 } 
 
 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 
   .width('90%') 
   .onScrollStop(() => { 
    this.scroller.scrollToIndex(10, true, ScrollAlign.CENTER) 
   }) 
  } 
  .width('100%') 
  .height('100%') 
  .backgroundColor(0xDCDCDC) 
 
  // .padding({ top: 5 }) 
 } 
}
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