Router切换Navigation指导

// main_page.json
{
  "src": [
    "pages/Index",
    "pages/PageOne",
    "pages/PageTwo"
  ]
}

// index.ets
@Entry
@Component
struct Index {
  @State message: string = 'Hello World';

  build() {
    Row() {
      Column() {
        Text(this.message)
          .fontSize(50)
          .fontWeight(FontWeight.Bold)
      }
      .width('100%')
    }
    .height('100%')
  }
}

// index.ets
@Entry
@Component
struct Index {
  pathStack: NavPathStack = new NavPathStack()

  build() {
    Navigation(this.pathStack) {
      Column() {
        Button('Push PageOne', { stateEffect: true, type: ButtonType.Capsule })
          .width('80%')
          .height(40)
          .margin(20)
          .onClick(() => {
            this.pathStack.pushPathByName('PageOne', null)
          })
      }.width('100%').height('100%')
    }
    .title("Navigation")
  }
}

// PageOne.ets

@Builder
export function PageOneBuilder() {
  PageOne()
}

@Component
export struct PageOne {
  pathStack: NavPathStack = new NavPathStack()

  build() {
    NavDestination() {
      Column() {
        Button('回到首页', { stateEffect: true, type: ButtonType.Capsule })
          .width('80%')
          .height(40)
          .margin(20)
          .onClick(() => {
            this.pathStack.clear()
          })
      }.width('100%').height('100%')
    }.title('PageOne')
    .onReady((context: NavDestinationContext) => {
      this.pathStack = context.pathStack
    })
  }
}

"routerMap": "$profile:route_map",

//新建
// route_map.json
{
  "routerMap": [
    {
      "name": "PageOne",
      "pageSourceFile": "src/main/ets/pages/PageOne.ets",
      "buildFunction": "PageOneBuilder",
      "data": {
        "description": "this is PageOne"
      }
    }
  ]
}

// push page
this.pathStack.pushPath({ name: 'PageOne' })

// pop page
this.pathStack.pop()
this.pathStack.popToIndex(1)
this.pathStack.popToName('PageOne')

// replace page
this.pathStack.replacePath({ name: 'PageOne' })

// clear all page
this.pathStack.clear()

// 获取页面栈大小
let size = this.pathStack.size()

// 删除栈中name为PageOne的所有页面
this.pathStack.removeByName("PageOne")

// 删除指定索引的页面
this.pathStack.removeByIndexes([1,3,5])

// 获取栈中所有页面name集合
this.pathStack.getAllPathName()

// 获取索引为1的页面参数
this.pathStack.getParamByIndex(1)

// 获取PageOne页面的参数
this.pathStack.getParamByName("PageOne")

// 获取PageOne页面的索引集合
this.pathStack.getIndexByName("PageOne")
...

@Entry
@Component
struct Index {
  pathStack: NavPathStack = new NavPathStack()

  // 全局设置一个NavPathStack
  aboutToAppear(): void {
     AppStorage.setOrCreate("PathStack", this.pathStack)
   }

  build() {
    Navigation(this.pathStack) {
        ...
      }.width('100%').height('100%')
    }
    .title("Navigation")
  }
}

// Navigation子页面
@Component
export struct PageOne {
  // 子页面中获取全局的NavPathStack
  pathStack: NavPathStack = AppStorage.get("PathStack") as NavPathStack

  build() {
    NavDestination() {
      ...
    }
    .title("PageOne")
  }
}

import observer from '@ohos.arkui.observer';

// 子页面中的自定义组件
@Component
struct CustomNode {
  pathStack : NavPathStack = new NavPathStack()

  aboutToAppear() {
    // query navigation info
    let  navigationInfo : NavigationInfo = this.queryNavigationInfo() as NavigationInfo
    this.pathStack = navigationInfo.pathStack;
  }

  build() {
    Row() {
      Button('跳转到PageTwo')
        .onClick(()=>{
          this.pathStack.pushPath({ name: 'pageTwo' })
        })
    }
  }
}

@Component
struct PageOne {

  aboutToDisappear() {
  }

  aboutToAppear() {
  }

  build() {
    NavDestination() {
      ...
    }
    .onWillAppear(()=>{
    })
    .onAppear(()=>{
    })
    .onWillShow(()=>{
    })
    .onShown(()=>{
    })
    .onWillHide(()=>{
    })
    .onHidden(()=>{
    })
    .onWillDisappear(()=>{
    })
    .onDisAppear(()=>{
    })
  }
}

@Component
export struct PageInHSP {
  build() {
    NavDestination() {
        ...
    }
  }
}

export { PageInHSP } from "./src/main/ets/pages/PageInHSP"

// 1.导入跨包的路由页面
import { PageInHSP } from 'library/src/main/ets/pages/PageInHSP'

@Entry
@Component
struct mainPage {
 pageStack: NavPathStack = new NavPathStack()

 @Builder pageMap(name: string) {
   if (name === 'PageInHSP') {
  // 2.定义路由映射表
  PageInHSP()
   }
 }
 build() {
   Navigation(this.pageStack) {
  Button("Push HSP Page")
    .onClick(() => {
    // 3.跳转到Hsp中的页面
    this.pageStack.pushPath({ name: "PageInHSP"});
  })
   }
   .navDestination(this.pageMap)
 }
}

export default class EntryAbility extends UIAbility {
  ...
  onWindowStageCreate(windowStage: window.WindowStage): void {
    ...
    windowStage.getMainWindow((err: BusinessError, data) => {
      ...
      windowClass = data;
      // 获取UIContext实例。
      let uiContext: UIContext = windowClass.getUIContext();
      // 获取UIObserver实例。
      let uiObserver : UIObserver = uiContext.getUIObserver();
      // 注册DevNavigation的状态监听.
      uiObserver.on("navDestinationUpdate",(info) => {
        // NavDestinationState.ON_SHOWN = 0, NavDestinationState.ON_HIDE = 1
        if (info.state == 0) {
          // NavDestination组件显示时操作
          console.info('page ON_SHOWN:' + info.name.toString());
        }
      })
    })
  }
}

import observer from '@ohos.arkui.observer';

@Component
export struct NavDestinationExample {
  build() {
    NavDestination() {
      MyComponent()
    }
  }
}

@Component
struct MyComponent {
  navDesInfo: observer.NavDestinationInfo | undefined

  aboutToAppear() {
    this.navDesInfo = this.queryNavDestinationInfo();
    console.log('get navDestinationInfo: ' + JSON.stringify(this.navDesInfo))
  }

  build() {
    // ...
  }
}