HarmonyOS 鸿蒙Next 父组件向子组件传递数据，UI不更新

HarmonyOS 鸿蒙Next 父组件向子组件传递数据，UI不更新

父组件中aboutToAppear 请求网络数据，数据如下，被@State 修饰
@State homePageBean: HomePageBean = new HomePageBean()

build() {
Scroll() {
Column() {
CoreArea({ isMain: true ,coreInfo:this.homePageBean.coreAreaArrayOne}).height(73).margin({ left: 20, right: 20, top: 6 })
CoreArea({ isMain: false ,coreInfo:this.homePageBean.coreAreaArrayTwo}).height(49).margin({ left: 20, right: 20, top: 12 })
}
}
}
CoreArea 中传递数据 homePageBean.coreAreaArrayOne

@Component
struct CoreArea {
@Prop marginTop: number;
@Prop isMain: boolean;
@Prop coreInfo: Array<CoreAreaInfo>
@State columnTemplate: string = ‘1fr 1fr 1fr 1fr 1fr’;
private controller: Scroller = new Scroller();

private itemsText: string[] = ['[https://xxx.png](https://xxx.png)', '[https://xxx.png](https://xxx.png)'];  

build() {  
    Grid(this.controller) {  
        ForEach(this.coreInfo, (item: CoreAreaInfo) => {  
            GridItem() {  
                Column() {  
                    Image(item.iconUrl).alt($r('app.media.icon_image_place_holder')).height(this.isMain ? 56 : 28).width('100%')  
                    Text("xxx")  
                    .fontSize(12)  
                    .fontColor($r('app.color.color_361C45'))  
                    .fontWeight(this.isMain ? 600 : 400)  
                    .margin({ top: 4 })  
                }  
            }  
        })  
    }  
    .columnsTemplate(this.columnTemplate)  
    .columnsGap(13)  
}  

}