收集视图崩溃

Question

我有两个结构。这些数据将添加到名为productData1的数组中。此数组包含图像以及name，rate等一些详细信息。图像和数据name，rate等将显示在集合视图中。在collectionview cellForItemAt...这就是我显示数据的方式..

let productObject = productData1[indexPath.row]
cell.nameLabel.text = productObject.name
cell.rateLabel.text = productObject.theRate

这很好用。而我试图表现出来的图像......

        if let data = try? Data(contentsOf: productObject.images[0].url) {// Crashed here..
            let img = UIImage(data: data)
            self.arrayOfURLImages.append(img!)
            cell.recipeImageView.image = self.arrayOfURLImages[indexPath.row]
        }

但是当我尝试显示这样的图像时，图像会显示在collectionview中。但是当我滚动它们时，我在if let data = try? Data(contentsOf: productObject....行fatal error: Index out of range说了cellForItemAt...。希望有人能帮忙......

编辑这是func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell { let cell = collectionView.dequeueReusableCell(withReuseIdentifier: identifier, for: indexPath as IndexPath) as! RecipeCollectionViewCell let productObject = productData1[indexPath.row] cell.nameLabel.text = productObject.name cell.rateLabel.text = productObject.theRate if let data = try? Data(contentsOf: productObject.images[0].url) { let img = UIImage(data: data) print(img!) self.arrayOfURLImages.append(img!) cell.recipeImageView.image = self.arrayOfURLImages[indexPath.row] } cell.sellButton.addTarget(self,action: #selector(SellBtnTapped(_:)),for: .touchUpInside) return cell

中的完整代码

std::vector

}