HarmonyOS 鸿蒙Next @ObjectLink装饰的对象的属性改变后Text不刷新

我给你完善了下代码，stockZdf 变化，Text是会跟着变化的。

import promptAction from '@ohos.promptAction'

@Observed
export class DataBean {
  id: string;
  stockName: string
  stockZdf: string

  constructor(id: string, stockName:string, stockZdf: string) {
    this.id = id;
    this.stockName = stockName;
    this.stockZdf = stockZdf;
  }
}

class CommonDataSource<DataBean> implements IDataSource {

  private dataList : Array<DataBean> = new Array<DataBean>();
  private listeners: Array<DataChangeListener> = new Array<DataChangeListener>();

  unregisterDataChangeListener(listener: DataChangeListener): void {
    let index = this.listeners.indexOf(listener)
    if( index > 0){
      this.listeners.splice(index, 1)
    }
  }

  registerDataChangeListener(listener: DataChangeListener): void {
    if(this.listeners.indexOf(listener) < 0){
      this.listeners.push(listener)
    }
  }

  getData(index: number) {
    return this.dataList[index];
  }

  totalCount(): number {
    return this.dataList.length;
  }

  notifyDataAdd(index: number): void {
    this.listeners.forEach(listener => {
      listener.onDataAdd(index);
    })
  }

  public notifyDataChange(index: number): void {
    this.listeners.forEach(listener => {
      listener.onDataChange(index);
    })
  }

  public addData(index: number, data: DataBean): void {
    this.dataList.splice(index, 0, data);
    this.notifyDataAdd(index);
  }

}

let itemID : number = 0
// 列表组件
@Entry
@Component
export struct ListView {
  @State dataSource: CommonDataSource<DataBean> = new CommonDataSource<DataBean>()

  private  temp : number = 0;
  build() {
    List() {
      LazyForEach(this.dataSource, (item: DataBean, index: number) => {
        ListItem() {
          ItemView({ dataBean: item })
        }
      }, (item: DataBean) => item.id)
    }
  }

  aboutToAppear(){
    this.dataSource.addData(0, new DataBean(`${itemID++}` , "a","b"))

    setInterval(() =>{
      this.dataSource.getData(0).stockZdf +=1;
    },200)
  }
}

// 列表项
@Component
export struct ItemView {
  @ObjectLink dataBean: DataBean

  build() {
    this.RelatedStocks()
  }

  @Builder
  RelatedStocks() {
    Flex({ justifyContent: FlexAlign.Center }) {
      Text(this.dataBean.stockName)
        .margin({ right: 5 })
      Text(this.dataBean.stockZdf)
    }
    .width(118)
    .border({ radius: 9 })
    .padding({ left: 10, right: 10 })
    .onClick(() => {
      promptAction.showToast({ message: this.dataBean.stockName + ' ' + this.dataBean.stockZdf })
    })
  }
}

我刚好也碰到这个问题了，绝了，感觉这是个BUG。。。