Login Page constructor call twice

[sappware]

import { AppState } from './app.global';
import { Component, ViewChild } from '@angular/core';
import { Nav, Platform,MenuController } from 'ionic-angular';
import { StatusBar } from '@ionic-native/status-bar';
import { SplashScreen } from '@ionic-native/splash-screen';
import { Subject } from 'rxjs';
import { Menu } from 'ionic-angular/components/menu/menu';

// import { HomePage } from '../pages/home/home';
// import { ListPage } from '../pages/list/list';

@component({
templateUrl: 'app.html'
})
export class MyApp {

@ViewChild(Nav) nav: Nav;

rootPage: any = 'LoginPage';
activePage = new Subject();

pages: Array<{ title: string, component: any, active: boolean, icon: string }>;
state: any;