Question

我正在使用viewForHeaderInSection实现标头单元。我创建了一个单独的视图，高度为1，我假设它应显示为分隔符。

   func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
        let cell = tableView.dequeueReusableCell(withIdentifier: "headerCell") as! CustomHeaderCell

        cell.opt.text = "Some"
        cell.len.text = "LEN"
        cell.wgt.text = "WGT"

        if !cell.constraintsInstalled {
            let constraints = [
                cell.stackView.leadingAnchor.constraint(equalTo: cell.contentView.leadingAnchor),
                cell.stackView.trailingAnchor.constraint(equalTo: cell.contentView.trailingAnchor),
                cell.stackView.topAnchor.constraint(equalTo: cell.contentView.topAnchor),
                cell.stackView.bottomAnchor.constraint(equalTo: cell.contentView.bottomAnchor)
            ]
            cell.contentView.addConstraints(constraints) //vw.addSubview(headerCell)




let separatorView = UIView(frame: CGRect(x: tableView.separatorInset.left, y: cell.frame.height, width: tableView.frame.width - tableView.separatorInset.right, height: 1))
            separatorView.backgroundColor = UIColor.red
            cell.addSubview(separatorView)
        }


        return cell

        }

Answer 1

首先，您应该将其添加到contentView

cell.contentView.addSubview(separatorView)

第二个不要使用框架，因为尚未放置单元格，还应该使用约束

separatorView.translatesAutoresizingMaskIntoConstraints = false
NSLayoutConstraint.activate([
    separatorView.leadingAnchor.constraint(equalTo:cell.contentView.leadingAnchor),
    separatorView.trailingAnchor.constraint(equalTo:cell.contentView.trailingAnchor),
    separatorView.heightAnchor.constraint(equalToConstant:1),
    separatorView.bottomAnchor.constraint(equalTo:cell.contentView.bottomAnchor)
])

红色分隔线未出现在UITableViewCell的自定义标题下

1 个答案: