HarmonyOS @entry 修饰的页面，onBackPress方法不触发

NavDestination本身就不会触发onbackpress，推荐的方案是可以在aboutToDisappear生命周期中调用下onBackPress，代码如下：

import { AppRouter, DynamicsRouter } from '@weimai/router';

@AppRouter({ name: "library/MainPage" })
@Component
export struct MainPage {
  @State message: string = 'library/MainPage';

  aboutToAppear(): void {

    console.info("子模块", "MainPage", "aboutToAppear >>>")
  }
  aboutToDisappear(): void {
    console.log('3333')
    this.onBackPress()

  }

  onPageShow(): void {
    console.log('3333')
  }

  onPageHide(): void {
    console.log('776767')
    this.onBackPress()
  }

  build() {
    Row() {
      Column() {
        Text(this.message)
          .fontSize(50)
          .fontWeight(FontWeight.Bold)

        Button("back")
          .id("next")
          .fontSize(20)
          .fontWeight(FontWeight.Bold)
          .align(Alignment.Center)
          .onClick(() => {
            console.log("子模块", "点击", "返回到上页面")
            DynamicsRouter.popAppRouter()
          })
          .margin({ top: 20 })
      }
      .width('100%')
    }
    .height('100%')
  }

  onBackPress(): boolean | void {
    console.info("子模块", "onBackPress", "触发了")
    return false
  }
}