Angular2 @Input and lifecycle hook

I have following component:

export class AddressListComponent implements AfterViewInit{   
  @Input() districts: District[] = [];

  constructor() { }

  ngAfterViewInit() {
    console.log(this.districts);   } }

So it console logs districts as empty array, but I send it as input non-empty array and it displays well this html:

<a *ngFor = "let district of districts; let i = index"  class="list-group-item clearfix" >
        WORKS
 </a>

So my question is next: when in the lifecycle hook am I able to console log data from districts array? Because I need to change it before displaying on html