ios - 如何正确配置 UITableView 自定义单元格

Question

我正在尝试为我的 UITableView 创建一个自定义单元格，但是无论我是使用带有 Storyboard标识符的单元格，还是完全创建我自己的单元格，由于某种原因数据加载但它只有 1 个单元格当我滚动时。它一次只显示 1 个单元格。这是我目前正在尝试的方式:

 let cell = UITableViewCell()
let cellTextLabel = UILabel()
let cellDetailLabel = UILabel()
let imageView = UIImageView()
let phImage = UIImage(named: "CryptiXJustX")

 func configureCustomCell() {
    cell.addSubview(imageView)
    imageView.backgroundColor = .clear
    imageView.translatesAutoresizingMaskIntoConstraints = false
    imageView.widthAnchor.constraint(equalToConstant: 80).isActive = true
    imageView.heightAnchor.constraint(equalToConstant: 80).isActive = true
    imageView.leftAnchor.constraint(equalTo: cell.leftAnchor, constant: 10).isActive = true
    imageView.centerYAnchor.constraint(equalTo: cell.centerYAnchor).isActive = true
    cell.addSubview(cellTextLabel)
    cellTextLabel.translatesAutoresizingMaskIntoConstraints = false
    cellTextLabel.leftAnchor.constraint(equalTo: imageView.rightAnchor, constant: 10).isActive = true
    cellTextLabel.rightAnchor.constraint(equalTo: cell.contentView.rightAnchor, constant: -10).isActive = true
    cellTextLabel.topAnchor.constraint(equalTo: cell.contentView.topAnchor, constant: 10).isActive = true
    cellTextLabel.textColor = .white
    cell.addSubview(cellDetailLabel)
    cellDetailLabel.translatesAutoresizingMaskIntoConstraints = false
    cellDetailLabel.leftAnchor.constraint(equalTo: imageView.rightAnchor, constant: 10).isActive = true
    cellDetailLabel.rightAnchor.constraint(equalTo: cell.contentView.rightAnchor, constant: -10).isActive = true
    cellDetailLabel.topAnchor.constraint(equalTo: cellTextLabel.bottomAnchor, constant: 10).isActive = true
    cellDetailLabel.textColor = .white
    cellDetailLabel.font = cellDetailLabel.font.withSize(12)
    cellDetailLabel.numberOfLines = 3

    cell.backgroundColor = .clear
    cell.textLabel?.textColor = .white
    cell.detailTextLabel?.textColor = .white

    imageView.image = phImage
}

 override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {

     var index = indexPath.row
    if contentData.count > 0 {
    cellTextLabel.text = contentData[index].title
    cellDetailLabel.text = contentData[index].text
        return cell
    } else {
        return cell
    }
}

我在ViewDidLoad()中configureCustomCell()，感觉跟cellforRowAt方法有关系，但我不确定。

override func viewDidLoad() {
    super.viewDidLoad()

     view.backgroundColor = .clear

    configureCustomCell()

    NewsAPI.shared.getData(arr: true) { (success) in
        DispatchQueue.main.async {

            self.contentData = NewsAPI.shared.contentData[0].posts
            self.tableView.reloadData()
        }
    }
    }

谢谢。

Answer 1

如下所示创建自定义 UITableViewCell

class CustomCell: UITableViewCell {
}

然后在 Controller viewDidLoad 中，您将按如下方式注册上面的单元格

tableView.registerClass(CustomCell.self, forCellReuseIdentifier: "CustomCell")