HarmonyOS 鸿蒙Next关于复杂嵌套对象属性更改失效的问题

我按照你提供demo试了一下 是可以的

唯一的区别就是声明完这个变量之后

@State contractListViewModel: ContractListViewModel = new ContractListViewModel();

我初始化了一下identityList的值

aboutToAppear(): void {
  this.contractListViewModel.identityList.push(new IdentityData());
}

我把整个demo贴一下 你本地运行一下

@Entry
@Component
struct Test4 {
  @State contractListViewModel: ContractListViewModel = new ContractListViewModel();

  aboutToAppear(): void {
    this.contractListViewModel.identityList.push(new IdentityData());
  }

  build() {
    Column() {
      PersonListView({ identityListArray: this.contractListViewModel.identityList })
      Button() {
        Text("测试变更图片")
      }.onClick(() => {
        this.contractListViewModel.identityList[0].icon = $r("app.media.home")
      }).margin(50)
    }
    .height('100%')
    .width('100%')
  }
}

@Component
struct PersonListView {
  @ObjectLink identityListArray: IdentityListArray;

  build() {
    Column() {
      ForEach(this.identityListArray, (item: IdentityData) => {
        PersonListItemView({ identityData: item })
      })
    }
  }
}

@Component
struct PersonListItemView {
  @ObjectLink identityData: IdentityData;

  build() {
    Image(this.identityData.icon)
      .width(33)
      .height(33)
  }
}

@Observed
export class ContractListViewModel {
  identityList: IdentityListArray = new IdentityListArray();
  breadCrumbArray: string[] = []
}

@Observed
export class IdentityListArray extends Array<IdentityData> {
}

@Observed
export class IdentityData {
  id: string = '';
  pinyin: string = '';
  pinyinInitial: string = '';
  name: string = '';
  unique: string = '';
  distinguishedName: string = '';
  person: string = '';
  unit: string = '';
  unitName: string = '';
  unitLevel: number = 0;
  unitLevelName: string = '';
  orderNumber: number = 0;
  major: boolean = false;
  createTime: string = '';
  updateTime: string = '';
  icon: Resource | PixelMap = $r('app.media.background');
}