我遇到了麻烦，让它与背景颜色和附属视图一起在单元格中工作。最后不得不:

1)使用带有背景颜色的UIView设置单元格的背景视图属性。

let view = UIView()
view.backgroundColor = UIColor.white
self.backgroundView = view

2)在layoutSubviews中重新定位这个视图，添加间距的想法

override func layoutSubviews() {
    super.layoutSubviews()
    backgroundView?.frame = backgroundView?.frame.inset(by: UIEdgeInsets(top: 2, left: 0, bottom: 0, right: 0)) ?? CGRect.zero
}

我认为最直接的解决方案，如果你只是寻找一点空间，可能最便宜的将是简单地设置单元格边框颜色为您的表格背景颜色，然后设置边框宽度，以获得所需的结果!

    cell.layer.borderColor = blueColor.CGColor
    cell.layer.borderWidth = 3

你必须为你的图像设置框架。未测试的代码是

cell.imageView.frame = CGRectOffset(cell.frame, 10, 10);

我认为这是最干净的解决方案:

class MyTableViewCell: UITableViewCell {
    override func awakeFromNib() {
        super.awakeFromNib()
        layoutMargins = UIEdgeInsetsMake(8, 0, 8, 0)
    }
}

我遇到了麻烦，让它与背景颜色和附属视图一起在单元格中工作。最后不得不:

1)使用带有背景颜色的UIView设置单元格的背景视图属性。

let view = UIView()
view.backgroundColor = UIColor.white
self.backgroundView = view

2)在layoutSubviews中重新定位这个视图，添加间距的想法

override func layoutSubviews() {
    super.layoutSubviews()
    backgroundView?.frame = backgroundView?.frame.inset(by: UIEdgeInsets(top: 2, left: 0, bottom: 0, right: 0)) ?? CGRect.zero
}

我也有同感。起初，我试着换到分组课，但对我来说，最后比我最初想象的更头疼，所以我一直在寻找替代方案。为了继续使用行(并且不干扰你访问模型数据的方式)，下面是我使用蒙版的方法:

func tableView(_ tableView: UITableView, willDisplay cell: UITableViewCell, forRowAt indexPath: IndexPath)
{
    let verticalPadding: CGFloat = 8

    let maskLayer = CALayer()
    maskLayer.cornerRadius = 10    //if you want round edges
    maskLayer.backgroundColor = UIColor.black.cgColor
    maskLayer.frame = CGRect(x: cell.bounds.origin.x, y: cell.bounds.origin.y, width: cell.bounds.width, height: cell.bounds.height).insetBy(dx: 0, dy: verticalPadding/2)
    cell.layer.mask = maskLayer
}

All you have left to do is make the cell's height bigger by the same value as your desired verticalPadding, and then modify your inner layout so that any views that had spacing to the edges of the cell have that same spacing increased by verticalPadding/2. Minor downside: you get verticalPadding/2 padding on both the top and bottom of the tableView, but you can quickly fix this by setting tableView.contentInset.bottom = -verticalPadding/2 and tableView.contentInset.top = -verticalPadding/2. Hope this helps somebody!