只是把对我有用的答案添加到答案池中。

我已经在TableViewCell中添加了一个视图(紫色视图)，我使用它作为单元格的内容视图。并限制紫色视图在顶部和底部都有填充，或者其他你想要的，但我认为这种方式创造了更多的灵活性。

使用UITableViewDelegate, highightforrowatindexpath并返回行高。

 (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
 return 100.0f ;
}

这篇文章很有帮助，它和其他答案差不多，但是总结和简洁

https://medium.com/@andersongusmao/left-and-right-margins-on-uitableviewcell-595f0ba5f5e6

其中，他只将它们应用于左侧和右侧，但UIEdgeInsetsMake初始化允许为所有四个点添加填充。

func UIEdgeInsetsMake(_ top: CGFloat, _ left: CGFloat, _ bottom: CGFloat, _ right: CGFloat) -> UIEdgeInsets Description Creates an edge inset for a button or view. An inset is a margin around a rectangle. Positive values represent margins closer to the center of the rectangle, while negative values represent margins further from the center. Parameters top: The inset at the top of an object. left: The inset on the left of an object bottom: The inset on the bottom of an object. right: The inset on the right of an object. Returns An inset for a button or view

注意，UIEdgeInsets也可以用来实现同样的效果。

Xcode 9.3/Swift 4

我可以想到三种方法:

Create a custom table cell that lays out the view of the entire cell in the manner that you desire Instead of adding the image to the image view, clear the subviews of the image view, create a custom view that adds an UIImageView for the image and another view, perhaps a simple UIView that provides the desired spacing, and add it as a subview of the image view. I want to suggest that you manipulate the UIImageView directly to set a fixed size/padding, but I'm nowhere near Xcode so I can't confirm whether/how this would work.

明白吗?

查看我在GitHub上的解决方案，其中包含UITableView的子类，并使用Objective-C的运行时特性。 它基本上使用了苹果的私有数据结构uitableviewwrodata，我得到了搜索UITableView的私有运行时头:

https://github.com/JaviSoto/iOS10-Runtime-Headers/blob/master/Frameworks/UIKit.framework/UITableView.h,

这里是你想要的私有类，它包含了你需要的所有东西来布局你的单元格的空间，而不需要在单元格的类中设置它:

https://github.com/JaviSoto/iOS10-Runtime-Headers/blob/master/Frameworks/UIKit.framework/UITableViewRowData.h

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!