ios - UITableViewCONtroller 中的快速多个单元格子类

Question

我正在尝试将多个子类添加到 UITableView 中。问题是它一直给我以下错误:

Type UITableVieCell does not conform to protocol NilLiteralConvertible

CellForRowAtIndexPath

override  func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
    if indexPath.section == 0 {

        let cell = tableView.dequeueReusableCellWithIdentifier("Cell", forIndexPath: indexPath) as UITableViewCell

        cell.textLabel?.text = self.section1[indexPath.row]
        cell.accessoryType = .DisclosureIndicator

        return cell

    } else if indexPath.section == 1 {

        let cell = tableView.dequeueReusableCellWithIdentifier("SwitchViewCell", forIndexPath: indexPath) as SwitchViewCell

        cell.cellLabel?.text = self.section2[indexPath.row]

        return cell
    }

    return nil
}

Answer 1

你不能返回零。而不是默认返回空单元格。

    var cell :UITableViewCell!

    switch (indexPath.row) {
    case 0:
        cell = tableView.dequeueReusableCellWithIdentifier("Cell", forIndexPath: indexPath) as UITableViewCell
        cell.textLabel?.text = self.section1[indexPath.row]
        cell.accessoryType = .DisclosureIndicator
        break;

    case 1:
        cell = tableView.dequeueReusableCellWithIdentifier("SwitchViewCell", forIndexPath: indexPath) as SwitchViewCell
        (cell as SwitchViewCell).cellLabel?.text = self.section2[indexPath.row]
        break;

    default:
        break;
    }

    return cell

确保你已经注册了nib

 self.tableView.registerNib(UINib(nibName: "SwitchViewCell", bundle: nil), forCellReuseIdentifier: "SwitchViewCell")