Otaciohome.html

<ion-header>
  <ion-navbar>
    <ion-title>
      MY APP
    </ion-title>
  </ion-navbar>
</ion-header>

<ion-content padding>
<form>
<ion-list>

  <ion-item>
    <ion-label floating>LOGIN 
    	<ion-icon name="person"></ion-icon>
	</ion-label>
    <ion-input type="text" [(ngModel)]="data.username"></ion-input>
  </ion-item>

  <ion-item>
    <ion-label floating>SENHA
    	<ion-icon name="medical"></ion-icon> 
    </ion-label>   
    <ion-input type="password" [(ngModel)]="data.password"></ion-input>
  </ion-item>

</ion-list>
<button ion-button full (click)="login()">ENTRAR</button>
</form>
</ion-content>