HarmonyOS Navigation路由打开的entry页面，不回调onBackPress方法，怎么监听侧滑操作？

import { PageOneTmp } from './PageOne'  
import { pageTwoTmp } from './PageTwo'  
import { pageThreeTmp } from './PageThree'  
  
@Entry  
@Component  
struct NavigationExample {  
  @Provide('pageInfo')  
  pageInfo: NavPathStack = new NavPathStack()  
  
  @Builder  
  PageMap(name: string) {  
    if (name === 'pageOne') {  
      PageOneTmp()  
    } else if (name === 'pageTwo') {  
      pageTwoTmp()  
    } else if (name === 'pageThree') {  
      pageThreeTmp()  
    }  
  }  
  
  build() {  
    Navigation(this.pageInfo) {  
      Column() {  
        Button('StartTest', { stateEffect: true, type: ButtonType.Capsule })  
          .width('80%')  
          .height(40)  
          .margin(20)  
          .onClick(() => {  
            this.pageInfo.pushPath({ name: 'pageOne' });  
          })  
      }  
    }.title('NavIndex').navDestination(this.PageMap)  
  }  
}
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
28.
29.
30.
31.
32.
33.
34.
35.

@Entry  
@Component  
export struct PageOneTmp {  
  @Consume('pageInfo') pageInfo: NavPathStack;  
  
  build() {  
    NavDestination() {  
      Column() {  
        Button('跳转到Page2', { stateEffect: true, type: ButtonType.Capsule })  
          .width('80%')  
          .height(40)  
          .margin(10)  
          .onClick(() => {  
            this.pageInfo.pushPath({ name: 'pageTwo' });  
          })  
      }.width('100%').height('100%')  
    }.title('pageOne').onBackPressed(() => {  
      return false;  
    })  
  }  
}
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.

@Entry  
@Component  
export struct pageTwoTmp {  
  @Consume('pageInfo') pageInfo: NavPathStack;  
  
  build() {  
    NavDestination() {  
      Column() {  
        Button('跳转到page3', { stateEffect: true, type: ButtonType.Capsule })  
          .width('80%')  
          .height(40)  
          .margin(10)  
          .onClick(() => {  
            this.pageInfo.pop(Number(1)) //若页面禁止侧滑，可以在跳转到其他页面或者返回按钮的地方使用pop  
            this.pageInfo.pushPath({ name: 'pageThree' });  
          })  
      }.width('100%').height('100%')  
    }.title('pageTwo')  
    .onBackPressed(() => {  
      return true; //不能侧滑页面设置为true （此处pop和true不能同时使用，否则不具备禁止侧滑的功能）  
    })  
  }  
}
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.

@Component  
export struct pageThreeTmp {  
  @Consume('pageInfo') pageInfo: NavPathStack;  
  
  build() {  
    NavDestination() {  
      Column() {  
        Button('返回pageTwo', { stateEffect: true, type: ButtonType.Capsule })  
          .width('80%')  
          .height(40)  
          .margin(10)  
          .onClick(() => {  
            this.pageInfo.pushPath({ name: 'pageTwo' });  
          })  
      }.width('100%').height('100%')  
    }.title('pageThree')  
    .onBackPressed(() => {  
      return false; //因为需要去掉禁止侧滑的url,所以侧滑回退到pageOne页面  
    })  
  }  
}
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.