npm -v
node -v
ionic -v

 ionic start nsbmNewsApp tabs 

cd nsbmNewsApp
Ionic serve
Ionic serve -l

ionic cordova build android

https://gradle.org/install/

ionic cordova emulate android

export class Tab1Page{
  name: string;
  age: number;
  girls: number;
  constructor(){
    this.name = "Azkar Moulana";
    this.age = 25;
    this.girls = 100000;
  }
}

ionic g page news

ionic g page news-detail

ionic g service service/news

https://newsapi.org/

export const environment = {
  production: false,
  apiUrl: 'https://newsapi.org/v2',
  apiKey: '815b2ff5f1764a65bcfb12cd8a9290ff'
};

const routes: Routes = [
  {
    path: 'tabs',
    component: TabsPage,
    children: [
      {
        path: 'tab1',
        children: [
          {
            path: '',
            loadChildren: '../tab1/tab1.module#Tab1PageModule'
          }
        ]
      },
      {
        path: 'tab2',
        children: [
          {
            path: '',
            loadChildren: '../tab2/tab2.module#Tab2PageModule'
          }
        ]
      },
      {
        path: 'tab3',
        children: [
          {
            path: '',
            loadChildren: '../tab3/tab3.module#Tab3PageModule'
          }
        ]
      },
      {
        path: 'news',
        children: [
          {
            path: '',
            loadChildren: '../news/news.module#NewsPageModule'
          }
        ]
      },
      {
        path: 'news-detail',
        children: [
          {
            path: '',
            loadChildren: '../news-detail/news-detail.module#NewsDetailPageModule'
          }
        ]
      },
      {
        path: '',
        redirectTo: '/tabs/news',
        pathMatch: 'full'
      }
    ]
  },
  {
    path: '',
    redirectTo: '/tabs/news',
    pathMatch: 'full'
  }
];

https://newsapi.org/

const API_URL = environment.apiUrl;
const API_KEY = environment.apiKey;
export class NewsService {
  currentNews: any;
  constructor( private http : HttpClient ) { }

  getNews(url){
    return this.http.get(`${API_URL}/${url}&apiKey=${API_KEY}`);
  }
}

export class NewsPage implements OnInit {
  data: any;
  constructor(private newsService: NewsService, private _router: Router) { }

  ngOnInit() {
    this.newsService.getNews('everything?q=cricket&from=2019-02-22&sortBy=publishedAt').subscribe(
      data => { this.data = data; console.log(JSON.stringify(this.data)); }
    )
  }
  goToSinglePage(news) {
    this.newsService.currentNews = news;
    this._router.navigate(['/tabs/news-detail']);
  }
}

'everything?q=cricket&from=2019-02-22&sortBy=publishedAt'