app.component.ts

constructor() {
    this.initializeApp();
  }

  initializeApp() {
    this.platform.ready().then(() => {
      this.statusBar.styleDefault();
      this.splashScreen.hide();
      this.storage.get('isLoggedIn').then((val) => {
        if (val == true) {
          this.services.isLoggedIn = true;
          this.rootPage = TabsPage;
        } else {
          this.services.isLoggedIn = false;
          this.rootPage = LoginPage;
        }
      });
    });
  }

services.ts

constructor(){
    this.login.email_address = (this.isLoggedIn == true) ?  this.storage.get('email_address').then((val) => {return val;}) : '';
    this.login.last4ofdl = (this.isLoggedIn == true) ?  this.storage.get('last4ofdl').then((val) => {return val;}) : '';
    this.login.last4ofdlConfirm = '';
    this.login.push_token = (this.isLoggedIn == true) ?  this.storage.get('push_token').then((val) => {return val;}) : '';
    this.login.phone_number = '';
    this.login.device_id = (this.isLoggedIn == true) ?  this.storage.get('device_id').then((val) => {return val;}) : '';