how to change page title in angular2 router

Question

I am trying to change the page title from the router, can this be done?

import {RouteConfig} from \'angular2/router\';
@RouteConfig([
  {path: \'/home\', com         


        

Answer 1

In the below example:

-We added object of data: { title: 'NAME' } to any routing object.

-We set a basic name ("CTM") for uploading time (when clicking F5 for Refreash..): .

-We added "TitleService" class.

-we handle Routher events by filtering them from app.component.ts.

index.html:

...

app.module.ts:

import { NgModule, enableProdMode } from '@angular/core';
import { BrowserModule  } from '@angular/platform-browser';
import { TitleService }   from './shared/title.service';
...


@NgModule({
  imports: [
    BrowserModule,
..
  ],
  declarations: [
      AppComponent,
...
  ],
  providers: [
      TitleService,
...
  ],
  bootstrap: [AppComponent],
})
export class AppModule { }

enableProdMode();

title.service.ts:

import { Injectable } from '@angular/core';
import { Title }  from '@angular/platform-browser';
import { ActivatedRouteSnapshot } from '@angular/router';


@Injectable()
export class TitleService extends Title {

    constructor() {
        super();
    }


    private recursivelyGenerateTitle(snapshot: ActivatedRouteSnapshot) {
        var titleParts = [];
        if (snapshot) {
            if (snapshot.firstChild) {
                titleParts = this.recursivelyGenerateTitle(snapshot.firstChild);
            }

            if (snapshot.data['title']) {
                titleParts.push(snapshot.data['title']);
            }
        }

        return titleParts;
    }

    public CTMGenerateTitle(snapshot: ActivatedRouteSnapshot) {
        this.setTitle("CTM | " + this.recursivelyGenerateTitle(snapshot).join(' - '));
    }

}

app-routing.module.ts:

import { Injectable } from '@angular/core';
import { NgModule } from '@angular/core';
import { Routes, RouterModule } from '@angular/router';

import { MainComponent } from './components/main.component';

import { Router, CanActivate } from '@angular/router';
import { AuthGuard }          from './shared/auth/auth-guard.service';
import { AuthService }    from './shared/auth/auth.service';


export const routes: Routes = [
  { path: 'dashboard', component: MainComponent, canActivate: [AuthGuard], data: { title: 'Main' } },
];

@NgModule({
    imports: [
        RouterModule.forRoot(routes, { useHash: true })  // .../#/crisis-center/
    ],
    exports: [RouterModule],
    providers: [
..
    ]
})

export class AppRoutingModule { }

export const componentsOfAppRoutingModule = [MainComponent];

app.component.ts:

import { Component } from '@angular/core';
import { Router, NavigationEnd, ActivatedRouteSnapshot } from '@angular/router';
import { TitleService } from './shared/title.service';

@Component({
  selector: 'ctm-app',
  template: `
    
    
    `
})
export class AppComponent {

    constructor(private router: Router, private titleService: TitleService) {

        this.router.events.filter((event) => event instanceof NavigationEnd).subscribe((event) => {
            console.log("AppComponent.constructor: Setting HTML document's Title");
            this.titleService.CTMGenerateTitle(this.router.routerState.snapshot.root);
        });

    }


}