tabs.js

import { Component, ViewChild } from '@angular/core';

import { HomePage } from '../home/home';
import { AboutPage } from '../about/about';
import { AccountPage } from '../account/account';

@Component({
  templateUrl: 'tabs.html'
})
export class TabsPage {
  // this tells the tabs component which Pages
  // should be each tab's root Page
  tab1Root: any = HomePage;
  tab2Root: any = AboutPage;
  tab3Root: any = AccountPage;

  @ViewChild('tabBar') tabRef: any;
  constructor() {

  }

  ionViewWillEnter() {
    this.tabRef.select(0);
  }
}