import { EventEmitter } from '@angular/core';
import { Router, ActivatedRoute, Params } from '@angular/router';
export declare class BreadcrumbService {
    private _activatedRoute;
    private _router;
    constructor(_activatedRoute: ActivatedRoute, _router: Router);
    breadcrumbs: Breadcrumb[];
    readonly visible: boolean;
    onChange: EventEmitter<Breadcrumb[]>;
    private _ROUTE_DATA_TITLE_BREADCRUMB;
    private _ROUTE_DATA_IGNORE_BREADCRUMB;
    private _is_visible;
    private _breadcrumbs;
    private _url;
    show(): void;
    hide(): void;
    update(): void;
    private _initialize;
    private _setBreadcrumbs;
    private _buildCrumb;
}
export interface Breadcrumb {
    label: string;
    params?: Params;
    url: string;
}