Angular2 calling custom function after ngSwitch new view is created

Question

I am creating a small app using Angular2+Ionic2. In this app I want initialise google-map into view segment when user

Answer 1

There is no built-in support of calling a function when ngSwitch adds/removes elements.

I would create a directive that calls the function when created (for example in ngOnInit()) or emits an event where an event handler can be bound to, and apply it to the component that is added when the ngSwitch branch is enabled.

If ngSwitch adds a component you can implement it in this component as well (depends on your requirements)

update

    
       Listing
    

@Directive(selector: '[onCreate]')
export class OnCreate implements OnInit {
  @Output() onCreate:EventEmitter = new EventEmitter();

  ngOnInit() {
    this.onCreate.emit('dummy');
  }
}

Plunker example