【HarmonyOS】HMRouter使用详解（二）路由跳转

路由跳转

HMRouter中使用HMRouterMgr的静态方法push()和replace()来实现路由跳转。使用pop()方法来实现页面返回

push ：目标页面不会替换当前页，而是插入页面栈。可以使用pop实现页面的返回操作。
replace：目标页面会替换当前页，并销毁当前页。这样可以释放当前页的资源，并且无法返回到当前页。
pop：返回页面栈的上一个页面，skipedLayerNumber 页面返回的层级数量，默认为0，表示返回上一级，1表示跳过一级页面返回

static push(pathInfo: HMRouterPathInfo, callback?: HMRouterPathCallback): void;static replace(pathInfo: HMRouterPathInfo, callback?: HMRouterPathCallback): void;static pop(pathInfo?: HMRouterPathInfo, skipedLayerNumber?: number): void;

跳转示例代码

push

              HMRouterMgr.push({navigationId: "mainNavigation",pageUrl: "TwoPage"})

replace

          HMRouterMgr.replace({navigationId: "mainNavigation",pageUrl: "ThreePage"})

携带参数跳转

              HMRouterMgr.push({navigationId: "mainNavigation",pageUrl: "TwoPage",param: new PageModel("张三", "12")})

PageModel

export class PageModel {Name?:stringAge?:stringconstructor(Name: string, Age: string) {this.Name = Namethis.Age = Age}
}

HomePage

import { HMDefaultGlobalAnimator, HMNavigation, HMRouter, HMRouterMgr } from '@hadss/hmrouter';
import { AttributeUpdater } from '@kit.ArkUI';
import { PageModel } from '../../Models/PageModel'@Entry
@Component
struct HomePage {modifier: NavModifier = new NavModifier();build() {// @Entry中需要再套一层容器组件,Column或者StackColumn() {// 使用HMNavigation容器HMNavigation({navigationId: 'mainNavigation', options: {standardAnimator: HMDefaultGlobalAnimator.STANDARD_ANIMATOR,dialogAnimator: HMDefaultGlobalAnimator.DIALOG_ANIMATOR,modifier: this.modifier}}) {Column({ space: 20 }) {Button("TwoPage").width("80%").onClick(() => {HMRouterMgr.push({navigationId: "mainNavigation",pageUrl: "TwoPage"})})Button("TwoPageParam").width("80%").onClick(() => {HMRouterMgr.push({navigationId: "mainNavigation",pageUrl: "TwoPage",param: new PageModel("张三", "12")})})}.width('100%').height('100%')}}.height('100%').width('100%')}
}class NavModifier extends AttributeUpdater<NavigationAttribute> {initializeModifier(instance: NavigationAttribute): void {instance.mode(NavigationMode.Stack);instance.navBarWidth('100%');instance.hideTitleBar(true);instance.hideToolBar(true);}
}

TwoPage

import { HMRouter, HMRouterMgr } from '@hadss/hmrouter'
import { PageModel } from '../../Models/PageModel'@HMRouter({ pageUrl: "TwoPage" })
@Component
export struct TwoPage {aboutToAppear(): void {let currentParam: PageModel = HMRouterMgr.getCurrentParam() as PageModel;if (currentParam == undefined) {return;}console.debug("param", 'name:' + currentParam.Name);console.debug("param", 'age:' + currentParam.Age);}build() {Column({ space: 20 }) {Button("ThreePage").width("80%").onClick(() => {HMRouterMgr.push({navigationId: "mainNavigation",pageUrl: "ThreePage"})})Button("ThreeReplacePage").width("80%").onClick(() => {HMRouterMgr.replace({navigationId: "mainNavigation",pageUrl: "ThreePage"})})Button("HomePage").width("80%").onClick(() => {HMRouterMgr.pop({navigationId: "mainNavigation"})})}.height("100%").width("100%")}
}

ThreePage

import { HMRouter, HMRouterMgr } from '@hadss/hmrouter'@HMRouter({ pageUrl: "ThreePage" })
@Component
export struct ThreePage {build() {Column() {Button("ThreePage").width("80%").onClick(() => {HMRouterMgr.pop({navigationId: "mainNavigation"})})}.height("100%").width("100%")}
}

实现页面跳转结果如下：

HMRouterPathInfo

路由跳转接口参数类，属性如下：

属性	类型	简介
navigationId	string	操作页面栈，为空时表示对最近一次操作的navigation进行路由跳转
pageUrl	string	需要跳转的目标页面
param	ESObject	跳转页面携带的参数
interceptors	IHMInterceptor[]	自定义拦截器，最高优先级执行
animator	IHMAnimator	boolean
skipAllInterceptor	boolean	是否跳过所有拦截器执行，但是不会跳过interceptors中的拦截器

获取路由的参数

通过HMRouterMgr.getCurrentParam()方法来获取页面传递的数据。通过push和replace的callback参数来实现页面返回的命令触发。

    static getCurrentParam(): Object | null;

修改上一章代码

TwoPage

import { HMPopInfo, HMRouter, HMRouterMgr } from '@hadss/hmrouter'
import { PageModel } from '../../Models/PageModel'@HMRouter({ pageUrl: "TwoPage" })
@Component
export struct TwoPage {aboutToAppear(): void {let currentParam: PageModel = HMRouterMgr.getCurrentParam() as PageModel;if (currentParam == undefined) {return;}console.debug("router", 'name:' + currentParam.Name);console.debug("router", 'age:' + currentParam.Age);}build() {Column({ space: 20 }) {Button("ThreePage").width("80%").onClick(() => {HMRouterMgr.push({navigationId: "mainNavigation",pageUrl: "ThreePage"}, {onResult: (popInfo: HMPopInfo) => {let popResult: PageModel = popInfo.result as PageModel;if (popResult == null || popResult == undefined) {return;}console.debug("router", 'name:' + popResult.Name);console.debug("router", 'age:' + popResult.Age);}})})Button("ThreeReplacePage").width("80%").onClick(() => {HMRouterMgr.replace({navigationId: "mainNavigation",pageUrl: "ThreePage"})})Button("HomePage").width("80%").onClick(() => {HMRouterMgr.pop({navigationId: "mainNavigation"})})}.height("100%").width("100%")}
}

ThreePage

import { HMRouter, HMRouterMgr } from '@hadss/hmrouter'
import { PageModel } from '../../Models/PageModel'@HMRouter({ pageUrl: "ThreePage" })
@Component
export struct ThreePage {build() {Column() {Button("ThreePage").width("80%").onClick(() => {HMRouterMgr.pop({navigationId: "mainNavigation",param: new PageModel("李四", "18")})})}.height("100%").width("100%")}
}