home.html

<ion-header>
  <ion-navbar primary>
    <ion-title>
      Galeria de Fotos
    </ion-title>


    <ion-buttons end>
      <button ion-button icon-only (click)="changeGrid()">
        <ion-icon *ngIf="!grid" name="md-grid"></ion-icon>
        <ion-icon *ngIf="grid" name="md-albums"></ion-icon>
      </button>
    </ion-buttons>
  </ion-navbar>
</ion-header>

<ion-content padding>


  <ion-grid *ngIf="images">
    <ion-row>
      <ion-col *ngFor="let photo of images" [attr.col-6]="grid ? true : null" [attr.col-12]="!grid ? true : null">
        <div>
          <img src="{{photo.url}}" imageViewer>
        </div>

      </ion-col>
    </ion-row>
  </ion-grid>

</ion-content>