goober-ionic/src/app/app.component.ts

import { Component, ViewChild } from '@angular/core';
import { Nav, Platform } from 'ionic-angular';
import { StatusBar } from '@ionic-native/status-bar';
import { SplashScreen } from '@ionic-native/splash-screen';
import { Storage } from '@ionic/storage';
import { Device } from '@ionic-native/device';

import { LoginPage } from '../pages/login/login';
import { StreamPage } from '../pages/stream/stream';

import * as pnut from 'pnut-butter';

@Component({
  templateUrl: 'app.html'
})
export class MyApp {
  @ViewChild(Nav) nav: Nav;

  rootPage: any = StreamPage;

  pages: Array<{title: string, component: any, params: Object}>;

  constructor(public platform: Platform, public statusBar: StatusBar, public splashScreen: SplashScreen,
    private storage: Storage, private device: Device) {
    this.initializeApp();

    // used for an example of ngFor and navigation
    this.pages = [
      { title: 'Timeline', component: StreamPage, params: {stream: 'personal'} },
      { title: 'Mentions', component: StreamPage, params: {stream: 'mentions'} },
      { title: 'Global', component: StreamPage, params: {stream: 'global'} },
      { title: 'Bookmarks', component: StreamPage, params: {stream: 'bookmarks'} },
      { title: 'Logout', component: {}, params: {}},
    ];

  }

  initializeApp() {
    console.log('--- initializeApp ---');


    this.platform.ready().then(() => {
      // Okay, so the platform is ready and our plugins are available.
      // Here you can do any higher level native things you might need.

      this.storage.get('token').then((val) => {
        if (val.length > 1) {
          pnut.token = val;
          this.nav.setRoot(StreamPage, {stream: 'personal'});
        }
      }).catch(err => {
        console.log('ERROR: ' + err);
        this.nav.setRoot(LoginPage);
      });

      this.statusBar.styleDefault();
      this.splashScreen.hide();
      console.log('---');
      console.log(this.device.platform);
      console.log('---');
    });
  }

  openPage(page) {
    // Reset the content nav to have just this page
    // we wouldn't want the back button to show in this scenario
    if (page.title === 'Logout') {
      this.storage.remove('token');
      this.nav.setRoot(LoginPage);
    } else {
      this.nav.setRoot(page.component, page.params);
    }
  }

}