在HarmonyOS NEXT开发中Navigation使用系统路由表，页面无法接收到参数？

Question

在HarmonyOS NEXT开发中Navigation使用系统路由表，页面无法接收到参数？

Answer 1

参考以下demo：

//index.ets 
@Builder 
routerMap(builderName: string, param: object) { 
  if (builderName === 'featureA') { 
    FeatureIndex(param); 
  } 
}; 
 
aboutToAppear(): void { 
  this.entryHapRouter.pushPathByName( "featureA", "测试", true) 
} 
 
//FeatureIndex.ets 
@Builder 
export function FeatureIndex(value: object) { 
  NavDestination() { 
    Column() { 
      Text('Hello FeatureA Page') 
      Text(`传入的参数：${JSON.stringify(value)}`) 
        .margin(20) 
    } 
    .width('100%') 
    .height('100%') 
  } 
  .hideTitleBar(true) 
} 
 
 
//路由表的方式传递参数： 
//index.ets 
@Entry 
@Component 
struct NavigationExample { 
  //绑定 NavPathStack 
  @Provide('NavPathStack')pageInfo: NavPathStack = new NavPathStack() 
 
  build() { 
    Navigation(this.pageInfo) { 
      Column() { 
        Button('StartTest', { stateEffect: true, type: ButtonType.Capsule }) 
          .width('80%') 
          .height(40) 
          .margin(20) 
          .onClick(() => { 
            this.pageInfo.pushPath({ name: 'pageOne',param:"测试参数" }); 
          }) 
      } 
    }.title('NavIndex') 
    .backgroundColor(Color.Orange) 
 
  } 
} 
 
 
//PageOne.ets 子页面绑定NavPathStack 
@Consume('NavPathStack') pageInfo: NavPathStack; 
 
aboutToAppear(): void { 
  this.message = this.pageInfo.getParamByIndex(0) as string 
  console.log(JSON.stringify(this.pageInfo)); 
}