如果你正在使用一个自定义的TableViewCell，你也可以覆盖awakeFromNib:

override func awakeFromNib() {
    super.awakeFromNib()

    // Set background color
    let view = UIView()
    view.backgroundColor = UIColor.redColor()
    selectedBackgroundView = view
}

如果您想向单元格添加自定义高亮显示的颜色(且单元格包含按钮、标签、图像等)。我按照下面的步骤:

例如，如果你想要一个选定的黄色:

1)创建一个适合所有不透明度为20%的单元格(黄色)的视图，例如backgroundselectedView

2)在单元控制器中这样写:

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
     self.backgroundselectedView.alpha=1;
    [super touchesBegan:touches withEvent:event];
}

- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event
{
    self.backgroundselectedView.alpha=0;
    [super touchesEnded:touches withEvent:event];
}

- (void)touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event
{
    self.backgroundSelectedImage.alpha=0;
    [super touchesCancelled:touches withEvent:event];
}

使用[cell setClipsToBounds:YES];对于分组样式单元格

在Swift 4中，你还可以全局设置你表格单元格的背景色(从这里取):

let backgroundColorView = UIView()
backgroundColorView.backgroundColor = UIColor.red
UITableViewCell.appearance().selectedBackgroundView = backgroundColorView

Swift 3:对我来说，当你把它放在cellForRowAtIndexPath:方法中时，它就工作了

let view = UIView()
view.backgroundColor = UIColor.red
cell.selectedBackgroundView = view

在自定义单元格类中为表单元格创建一个自定义单元格。M把下面的代码，它会工作的很好。你需要把想要的颜色图像放在选择背景UIImage中。

- (void)setSelected:(BOOL)selected animated:(BOOL)animated
{
    UIImage *selectionBackground = [UIImage imageNamed:@"yellow_bar.png"];
    UIImageView *iview=[[UIImageView alloc] initWithImage:selectionBackground];
    self.selectedBackgroundView=iview;
}