[cell setSelectionStyle:UITableViewCellSelectionStyleGray];

确保你已经使用了上面的行来使用选择效果

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

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
}

试试下面的代码。

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:[cellIdArray objectAtIndex:indexPath.row] forIndexPath:indexPath];

    // Configure the cell...
    cell.backgroundView =
    [[UIImageView alloc] init] ;
    cell.selectedBackgroundView =[[UIImageView alloc] init];

    UIImage *rowBackground;
    UIImage *selectionBackground;


    rowBackground = [UIImage imageNamed:@"cellBackgroundDarkGrey.png"];
    selectionBackground = [UIImage imageNamed:@"selectedMenu.png"];

    ((UIImageView *)cell.backgroundView).image = rowBackground;
    ((UIImageView *)cell.selectedBackgroundView).image = selectionBackground;



    return cell;
}

/ /快速版:

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {


        let cell = tableView.dequeueReusableCell(withIdentifier: "cell")! as UITableViewCell


        cell.selectedBackgroundView = UIImageView()
        cell.backgroundView=UIImageView()

        let selectedBackground : UIImageView = cell.selectedBackgroundView as! UIImageView
        selectedBackground.image = UIImage.init(named:"selected.png");

        let backGround : UIImageView = cell.backgroundView as! UIImageView
        backGround.image = UIImage.init(named:"defaultimage.png");

        return cell


    } 

Swift 3.0扩展

extension UITableViewCell {
    var selectionColor: UIColor {
        set {
            let view = UIView()
            view.backgroundColor = newValue
            self.selectedBackgroundView = view
        }
        get {
            return self.selectedBackgroundView?.backgroundColor ?? UIColor.clear
        }
    }
}

细胞。selectionColor = uiccolor . formacar .blue

Swift 5 - Xcode版本12.1 (12A7403)

| |第一步 将以下内容添加到AppDelegate.swift文件中

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {

    let colorView = UIView()
    colorView.backgroundColor = UIColor.lightGray

    UITableViewCell.appearance().selectedBackgroundView = colorView
        
    return true
}

|第二步| 确保在属性检查器中，单元格的内容视图背景设置为“清除颜色”(而不是“默认”)。这样做是为了不与App Delegate设置冲突。