Pagina-ppal

//app.module.ts

import { BrowserModule } from '@angular/platform-browser';
import { ErrorHandler, NgModule } from '@angular/core';
import { IonicApp, IonicErrorHandler, IonicModule } from 'ionic-angular';
import { SplashScreen } from '@ionic-native/splash-screen';
import { StatusBar } from '@ionic-native/status-bar';
import { EmailComposer } from '@ionic-native/email-composer';
import {HttpModule} from "@angular/http";
import { MaterialIconsModule } from 'ionic2-material-icons';

import { MyApp } from './app.component';
import { PantallaPpalPage } from '../pages/pantalla-ppal/pantalla-ppal';
import { UserProvider } from '../providers/user/user';
import { ComerciosProvider } from '../providers/comercios/comercios';
import { GoogleMaps } from "@ionic-native/google-maps";

@NgModule({
  declarations: [
    MyApp,
    PantallaPpalPage
  ],
  imports: [
    BrowserModule,
    HttpModule,
    IonicModule.forRoot(MyApp),
    MaterialIconsModule 
  ],
  bootstrap: [IonicApp],
  entryComponents: [
    MyApp,
    PantallaPpalPage
  ],
  providers: [
    StatusBar,
    SplashScreen,
    {provide: ErrorHandler, useClass: IonicErrorHandler},
    UserProvider,
    GoogleMaps,
    ComerciosProvider,
    EmailComposer
  ]
})
export class AppModule {}

//app.component.ts

import { Component } from '@angular/core';
import { Platform } from 'ionic-angular';
import { StatusBar } from '@ionic-native/status-bar';
import { SplashScreen } from '@ionic-native/splash-screen';

import { PantallaPpalPage } from '../pages/pantalla-ppal/pantalla-ppal';
@Component({
  templateUrl: 'app.html'
})
export class MyApp {
  rootPage:any = PantallaPpalPage;

  constructor(platform: Platform, statusBar: StatusBar, splashScreen: SplashScreen) {
    platform.ready().then(() => {

      statusBar.styleDefault();
      splashScreen.hide();
    });
  }
}

//pantalla-ppal.ts

import { Component } from '@angular/core';
import { IonicPage, NavController, NavParams } from 'ionic-angular';


@IonicPage({
  name: 'pantalla-ppal-page'
})
@Component({
  selector: 'page-pantalla-ppal',
  templateUrl: 'pantalla-ppal.html',
})

export class PantallaPpalPage {

  constructor(public navCtrl: NavController, public navParams: NavParams) {
  }
  goToHome(){
    this.navCtrl.setRoot('menu-page');
  }
  goToLogin(){
    this.navCtrl.push('login-page');
  }

}