import { BackItem, FormDefine } from '../define';
import { ActivatedRoute, Router } from '@angular/router';
export declare class StateService {
    constructor();
    state: BackItem[];
    backwardItem: BackItem;
    private router;
    private activatedRoute;
    private haveBackward;
    private initializing;
    private static createBackItem;
    applyState(form: FormDefine): void;
    getStateParams(): any;
    backward(): void;
    isHaveBackward(): any;
    navigate(url: string, form: FormDefine, params: {
        [key: string]: any;
    }): void;
    /**
     * Get parameter from navigated page
     * @param route Activated route
     * @param loaded Callback function to get result
     * @param backward If true, get params just if have a backward navigation
     */
    params(route: ActivatedRoute, loaded: (params: {
        [key: string]: any;
    }) => void, backward?: boolean): void;
    backwardParams(route: ActivatedRoute, loaded: (params: any) => void): void;
    init(router: Router, activatedRoute: ActivatedRoute): void;
}