Open Tab from Button (inside another Tab)

Ionic Framework ionic-v3
3

Alright guyz. This was the thing I was struggling for AGES. Let me clear up that for you.
First you need to know how to get components from ionic.

constructor(
public app: IonicApp,
) {
this.app = app;
}

ngAfterViewInit() {
  // Here 'my-content' is the ID of my ion-content
  this.content = this.app.getComponent('my-tab');
  console.log("Yo we get the tab", this.content);
}

After you get the tab. You can all the glory functions --> Liike
this.content.select(0);