Angular 6 - Get current route and it's data

Question

How do you able to get current route you\'re in and get\'s it\'s data, children and it\'s parent?

say if this is the route structure:

相关标签:

Answer 1

You can access the route's data property from the snapshot like this:

import { Component, OnInit } from '@angular/core';
import { ActivatedRoute } from '@angular/router';

@Component({
    templateUrl: './app/home/welcome.component.html'
})
export class WelcomeComponent implements OnInit {
    public pageTitle: string;

    constructor( private route: ActivatedRoute) {
    } 

    ngOnInit(): void {
     this.pageTitle = this.route.snapshot.data['title'];
  }

}

Answer 2

  constructor(
    private router: Router,
    private route: ActivatedRoute,
  ) {
  }

  ngOnInit() {
    this.router.events.pipe(
        filter(event => event instanceof NavigationEnd),
        map(() => {
          return this.getHeaderClasses();
        }),
      )
      .subscribe((headerClasses: string | null) => {
        this.headerClasses = headerClasses;
      });
    this.headerClasses = this.getHeaderClasses();
  }


  getHeaderClasses(): string | null {
    let child = this.route.firstChild;
    while (child) {
      if (child.firstChild) {
        child = child.firstChild;
      } else if (child.snapshot.data && child.snapshot.data['headerClasses']) {
        return child.snapshot.data['headerClasses'];
      } else {
        return null;
      }
    }
    return null;
  }

routing

{
  path: 'list',
  component: DialogListComponent,
  data: {
    headerClasses: 'col-lg-8',
  },
},

Answer 3

@Component({...})
export class CompanyComponent implements OnInit {

constructor(
  private router: Router,
  private route: ActivatedRoute
) {}

ngOnInit() {

  // Parent:  about 
  this.route.parent.url.subscribe(url => console.log(url[0].path));

  // Current Path:  company 
  this.route.url.subscribe(url => console.log(url[0].path));

  // Data:  { title: 'Company' } 
  this.route.data.subscribe(data => console.log(data));

  // Siblings
  console.log(this.router.config);
}
}