如何從 Swift 中的 JSON 中的 collectionview numberOfItemsInSection 返回 Max 10 項

Question

我收到 Json 響應，如下所示

   detailsDB = ProductDetailsData(dictionary: NSDictionary())

   func serviceCall(){
let param = ["jsonrpc": "2.0",
             "params": ["product_id" : productID
             ]] as [String : Any]

APIReqeustManager.sharedInstance.serviceCall(param: param, vc: self, url: getUrl(of: .product_details), header: header) {(responseData) in
  
        self.detailsDB = ProductDetailsData(dictionary: responseData.dict as NSDictionary? ?? NSDictionary())
}

像這樣，我將 JSON 中的所有產品都顯示在 collectionview 中。這里我需要顯示從 JSON 到 collectionview 的最多 10 個產品

func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
    return detailsDB?.result?.seller_products?.count ?? 0
}

func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {

    let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "VerticalSliderCollectionCell", for: indexPath) as! VerticalSliderCollectionCell
   
    let indexData = detailsDB?.result?.seller_products?[indexPath.item]
    cell.imgProduct.getImage(strUrl: "\(productImagePath)\(indexData?.default_image?.image ?? "")")
    cell.lblTitle.text = indexData?.product_by_language?.title
    cell.lbRealPrice.text = indexData?.discount_price != "0.000" ? "\(indexData?.price ?? "") KWD" : ""
    cell.lblDiscountedPrice.text = indexData?.discount_price != "0.000" ? "\(indexData?.discount_price ?? "") KWD" : "\(indexData?.price ?? "") KWD"
   
    return cell
}

請幫我解決這個錯誤

Answer 1

試試這種方式：

func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
    return min(detailsDB?.count, 10) // 10 = max items
}