angular - 离子网格无法在 ionic 3 中渲染

Question

我想在 firebase 数据库中显示 JSON 文件中的图像，只显示滑块图像而不显示产品图像。请帮我

<ion-content  class="dark">
    <ion-slides *ngIf="promoImagesLoaded" autoplay=6000  slidesPerView=1>
        <ion-slide *ngFor="let promo of promoSliders">
            <img src="{{promo.name}}" alt="">
          </ion-slide>  

    </ion-slides>


     <ion-grid>
      <ion-row *ngFor="let i of productRows">
        <ion-col *ngFor="let product of products | slice:(i*2):(i+1)*2" width-50 (click)="showDetails(product)">
          <ion-card>         
            <img src="{{product.thumb}}" alt="">
            <ion-card-content>
                <p>
                    {{product.price | currency:'USD':true:'1.2-2'}}
                </p>
            </ion-card-content>
           </ion-card>
        </ion-col>
      </ion-row>
    </ion-grid>

标签： angulartypescriptionic3