HarmonyOS navigation UI框架下，onPageShow不回调

import { PageOneTmp } from './PageOne' 
import observer from '@ohos.ArkUI.observer' 
 
@Entry 
@Component 
struct NavigationTestPage { 
  @Provide('pageInfos') pageInfos: NavPathStack = new NavPathStack() 
  aboutToAppear(): void { 
    observer.on('navDestinationUpdate', (info) => { 
      console.info('------>NavDestination state update', JSON.stringify(info)); 
    }); 
  } 
  aboutToDisappear(): void { 
    observer.off('navDestinationUpdate'); 
  } 
  @Builder 
  PageMap() { 
    PageOneTmp() 
  } 
  build() { 
    Navigation(this.pageInfos) { 
      Column() { 
        Button('pushPath', { stateEffect: true, type: ButtonType.Capsule }) 
          .width('80%') 
          .height(40) 
          .margin(20) 
          .onClick(() => { 
            this.pageInfos.pushPath({ name: 'pageOne' }) //将name指定的NavDestination页面信息入栈 
          }) 
      } 
    }.title('NavIndex').navDestination(this.PageMap) 
    .onNavBarStateChange((isVisible: boolean) => { 
      console.info('------>isVisible：' + isVisible) 
    }) 
  } 
  onPageShow(): void { 
    console.info('------>主页显示') 
  } 
}

@Component 
export struct PageOneTmp { 
  @Consume('pageInfos') pageInfos: NavPathStack; 
  build() { 
    NavDestination() { 
      Column() { 
        Button('clear', { stateEffect: true, type: ButtonType.Capsule }) 
          .width('80%') 
          .height(40) 
          .margin(20) 
          .onClick(() => { 
            this.pageInfos.clear() //清除栈中所有页面 
          }) 
      }.width('100%').height('100%') 
    }.title('pageOne') 
    .onBackPressed(() => { 
      const popDestinationInfo = this.pageInfos.pop() // 弹出路由栈栈顶元素 
      console.log('pop' + '返回值' + JSON.stringify(popDestinationInfo)) 
      return true 
    }) 
  } 
}