HarmonyOS 嵌套滑动NestedScroll 指定offset

@Entry 
@Component 
struct page { 
  @State listPosition: number = 0; // 0代表滚动到List顶部，1代表中间值，2代表滚动到List底部。 
  @State arr: number[] = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13] 
  private scrollerForScroll: Scroller = new Scroller() 
  private scrollerForList: Scroller = new Scroller() 
  @State isRefreshing: boolean = false 
  @Builder 
  listBuilder() { 
    List({ space: 20, scroller: this.scrollerForList }) { 
      ForEach(this.arr, (item: number) => { 
        ListItem() { 
          Text("ListItem" + item) 
            .width("100%") 
            .height("100%") 
            .fontSize(16) 
            .textAlign(TextAlign.Center) 
            .backgroundColor(Color.White) 
        }.width("100%").height(100) 
      }, (item: string) => item) 
    } 
    .divider({ strokeWidth: 1, color: 0xeeeeee }) 
    .nestedScroll({ 
      scrollForward: NestedScrollMode.PARENT_FIRST, 
      scrollBackward: NestedScrollMode.SELF_FIRST 
    }) 
    .edgeEffect(EdgeEffect.None) 
    .friction(0.6) 
    .height('calc(100% - 100vp)') // 滚动到scroll area还剩100时 就定格了 
  } 
 
  build() { 
    Scroll(this.scrollerForScroll) { 
      Column() { 
        Text("Scroll Area") 
          .width("100%") 
          .height("40%") 
          .backgroundColor(0X330000FF) 
          .fontSize(16) 
          .textAlign(TextAlign.Center) 
          .onClick(() => { 
            setTimeout(() => { 
 
            }, 1000) 
          }) 
        this.listBuilder() 
 
 
      }.justifyContent(FlexAlign.Start) 
    }.edgeEffect(EdgeEffect.None) 
  } 
}