swift - 图像未显示在表格 View 中

Question

我正在尝试从 mysql 获取项目列表并将其显示在应用程序中。名称出现，但图像和价格没有。

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
   // let cell = tableView.dequeueReusableCell(withIdentifier: "BasicCell", for: indexPath)
    var cell:UITableViewCell? =
        tableView.dequeueReusableCell(withIdentifier: "BasicCell", for: indexPath)
    if (cell == nil)
    {
        cell = UITableViewCell(style: UITableViewCellStyle.subtitle,
                               reuseIdentifier: "BasicCell")
    }

    // Get the location to be shown
    let item: Location = locations[indexPath.row]
    //  let price=locations[indexPath.row].price

    let price=(item.price as NSString).floatValue
    let cellPrice = String(format: "%.2f",price)
    let serverurl=NSURL(string: "https://myoscapp.com/boot/images/")
    let imageaddress = locations[indexPath.row].image
    let imageURL = NSURL.init(string: imageaddress, relativeTo: serverurl! as URL)
    cell?.textLabel?.text=locations[indexPath.row].name
    cell?.detailTextLabel?.text = cellPrice
    cell?.imageView?.sd_setImage(with: imageURL! as URL )
    cell?.setNeedsLayout() //invalidate current layout
    cell?.layoutIfNeeded() //update immediately
    return cell!

}

Answer 1

我让一切都像这样工作。我不知道 for:indexPath 是否会产生效果，但我没有看到任何东西

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
   // let cell = tableView.dequeueReusableCell(withIdentifier: "BasicCell", for: indexPath)
    let cell = UITableViewCell(style: UITableViewCellStyle.subtitle,
                               reuseIdentifier: "BasicCell")
    // Get the location to be shown
    let item: Location = locations[indexPath.row]
    //  let price=locations[indexPath.row].price

    let price=(item.price as NSString).floatValue
    let cellPrice = String(format: "%.2f",price)
    let serverurl=NSURL(string: "https://myoscapp.com/boot/images/")
    let imageaddress = locations[indexPath.row].image
    let imageURL = NSURL.init(string: imageaddress, relativeTo: serverurl! as URL)
    cell.textLabel?.text=locations[indexPath.row].name
    cell.detailTextLabel?.text = cellPrice
    cell.imageView?.sd_setImage(with: imageURL! as URL )
    cell.setNeedsLayout() //invalidate current layout
    cell.layoutIfNeeded() //update immediately
    return cell

}