<StackLayout orientation="vertical" class="sl-opciones segoeL bold">
    <Label text="Llamar dialog 2" class="odd" (tap)="ir('dialog')"></Label></StackLayout>

async ir(evts) {
    if(evts === "notificaciones"){
        console.log('entré en notificaciones');
        let opciones: ModalDialogOptions = {
            fullscreen: true,
            viewContainerRef: this.viewContainerRef
          }
          let seleccion = await this.modalService.showModal(modalDialog2, opciones);
    }
}

<GridLayout columns="*" rows="2*,4*,6*" width="auto" height="350">
<StackLayout orientation="horizontal" row="0" class="gl-head droidSans-Bold">


<StackLayout orientation="vertical" row="1" class="sl-body segoeL bold">
    <label textWrap="true" text="Ejemplo de modal 2" class=""></label>
</StackLayout>

<StackLayout orientation="vertical" row="2" class="segoeL bold">
    <GridLayout (tap)="close()" columns="*" width="250" height="45" horizontalAlignment="center" class="btn-group">
        <Label text="Si" col="0" class="btn-group-2_2 droidSans-Bold"></Label>
    </GridLayout>

    <GridLayout (tap)="close()" columns="*" width="250" height="45" horizontalAlignment="center" class="btn-group">
        <Label text="No" col="0" class="btn-group-2_2 droidSans-Bold"></Label>
    </GridLayout>
</StackLayout>

TypeError: Cannot read propoerty 'android' of undefined