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public static createNavPathStack(router: NavPathStack): void {
DynamicsRouter.navPathStack = router;
}
private static getNavPathStack(): NavPathStack {
return DynamicsRouter.navPathStack;
}
private static registerBuilder(builderName: string, builder: WrappedBuilder<[object]>): void {
DynamicsRouter.builderMap.set(builderName, builder);
}
public static getBuilder(builderName: string): WrappedBuilder<[object]> {
let builder = DynamicsRouter.builderMap.get(builderName);
if (!builder) {
let msg = "not found builder";
console.info(msg + builderName);
}
return builder as WrappedBuilder<[object]>;
}
public static async push(routerInfo: RouterInfo, param?: string): Promise<void> {
const pageName: string = routerInfo.pageName;
const moduleName: string = routerInfo.moduleName;
let isImportSucceed: boolean = false;
await import(moduleName).then((result: ESObject) => {
result.harInit(pageName);
isImportSucceed = true;
}, (error: ESObject) => {
logger.error(LOGGER_TAG, error);
});
if (isImportSucceed) {
const builderName: string = moduleName + "/" + pageName;
DynamicsRouter.getNavPathStack().pushPath({ name: builderName, param: param });
}
}
public static registerRouterPage(routerInfo: RouterInfo, wrapBuilder: WrappedBuilder<[object]>) {
let builderName: string = routerInfo.moduleName + "/" + routerInfo.pageName;
if (!DynamicsRouter.getBuilder(builderName)) {
DynamicsRouter.registerBuilder(builderName, wrapBuilder);
}
}
动态路由的使用
下面以eventpropagation模块举例说明如何使用动态路由加载子模块页面。
{ "app":{ ... } "modules":{ ... { "name": "eventpropagation", "srcPath": "./feature/eventpropagation" }, { "name": "routermodule", "srcPath": "./feature/routermodule" } ... } }
"dependencies": {
"@ohos/dynamicsrouter": "file:../../feature/routermodule",
"@ohos/event-propagation": "file:../../feature/eventpropagation",
...
}
...
"buildOption": {
"arkOptions": {
"runtimeOnly": {
"packages": [
"@ohos/event-propagation",
...
]
}
}
}
export class RouterInfo {
moduleName: string = '';
pageName: string = '';
constructor(moduleName: string, pageName: string) {
this.moduleName = moduleName;
this.pageName = pageName;
}
...
static readonly EVENT_TRANSMISSION_SOLUTION: RouterInfo = new RouterInfo('@ohos/event-propagation', 'EventPropagation');
...
}
...
@Provide('pageStack') pageStack: NavPathStack = new NavPathStack();
@State listData: SceneModuleInfo[] = waterFlowData;
...
aboutToAppear(): void {
DynamicsRouter.createNavPathStack(this.pageStack);
...
}
...
export const waterFlowData: SceneModuleInfo[] = [
...
new SceneModuleInfo($r("app.media.event_propagation"), '阻塞事件冒泡', RouterInfo.EVENT_TRANSMISSION_SOLUTION, '其他', 1),
...
}
@Builder
methodPoints(listData: ListData) {
Column() {
...
.onClick(() => {
DynamicsRouter.push(listData.routerInfo, listData.param);
})
}
...
"dependencies": {
...
"@ohos/dynamicsrouter": "file:../../feature/routermodule"
}
export function harInit(pageName: string) {
switch (pageName) {
case RouterInfo.EVENT_TRANSMISSION_SOLUTION.pageName:
import('./src/main/ets/view/EventPropagation');
break;
}
}
...
@Builder
export function getEventPropagation(): void {
EventPropagation();
}
DynamicsRouter.registerRouterPage(RouterInfo.EVENT_TRANSMISSION_SOLUTION, wrapBuilder(getEventPropagation));
...
@Builder
export function getNavigationParameterTransferView(param: ESObject): void {
NavigationParameterTransferView();
}
...
本示例使用动态import的方式加载模块,只有需要进入页面时才加载对应的模块,减少主页面启动时间和初始化效率,减少内存的占用。
routermodule // har类型
|---constants
| |---RouterInfo.ets // 路由信息类,用于配置动态路由跳转页面的名称和模块名
|---router
| |---DynamicsRouter.ets // 动态路由实现类
网上学习资料一大堆,但如果学到的知识不成体系,遇到问题时只是浅尝辄止,不再深入研究,那么很难做到真正的技术提升。
一个人可以走的很快,但一群人才能走的更远!不论你是正从事IT行业的老鸟或是对IT行业感兴趣的新人,都欢迎加入我们的的圈子(技术交流、学习资源、职场吐槽、大厂内推、面试辅导),让我们一起学习成长!
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网上学习资料一大堆,但如果学到的知识不成体系,遇到问题时只是浅尝辄止,不再深入研究,那么很难做到真正的技术提升。
一个人可以走的很快,但一群人才能走的更远!不论你是正从事IT行业的老鸟或是对IT行业感兴趣的新人,都欢迎加入我们的的圈子(技术交流、学习资源、职场吐槽、大厂内推、面试辅导),让我们一起学习成长!
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