HarmonyOS 鸿蒙Next 使用class-transformer转换解析后，被@ObservedV2 修饰类中被@Trace修饰的变量改变是否不会刷新UI

从其他组件接收后可以push到当前当前组件参数中，参考下面demo

@ObservedV2 export class Brand { key: number = 0; name: string = ‘’; @Trace isSelected: boolean = false; }

@ObservedV2 export class BrandsIndex { key: string = ‘’; name: string = ‘’; @Trace brands: Brand[] = [];

constructor(key: string, name: string, brands: Brand[]) { this.key = key; this.name = name; this.brands = brands; } }

@Entry @ComponentV2 struct ObservedV2TraceDemo2 { brandsIndex: BrandsIndex = new BrandsIndex(“a”, “A”, [new Brand(), new Brand(), new Brand()]);

build() { NavDestination() { Scroll() { Column() { Text(length: ${this.brandsIndex.brands.length}) .fontSize(40)

      Divider()
      
      ForEach(this.brandsIndex.brands, (item: Brand, index: number) => {
        Text(`${item.isSelected}`)
          .fontSize(40)
          .onClick(() => {
            this.brandsIndex.brands[index].isSelected = !this.brandsIndex.brands[index].isSelected;
          })
      })

      Divider()

      ForEach(this.brandsIndex.brands, (item: Brand, index: number) => {
        Text(`${index} ${item.isSelected}`)
          .fontSize(40)
      })
      
      Divider()
      
      Button("add Brand")
        .onClick(() => {
          this.brandsIndex.brands.push(new Brand())
        })
    }
  }
}

} }