下面是Swift中选择按钮状态的代码:

func imageWithColor(color:UIColor) -> UIImage {
    let rect:CGRect = CGRectMake(0.0, 0.0, 1.0, 1.0)
     UIGraphicsBeginImageContext(rect.size)
    let context:CGContextRef = UIGraphicsGetCurrentContext()!
    CGContextSetFillColorWithColor(context, color.CGColor)
    CGContextFillRect(context, rect)
    let image:UIImage = UIGraphicsGetImageFromCurrentImageContext();
    return image;
}

例子:

    self.button.setImage(self.imageWithColor(UIColor.blackColor()), forState: .Highlighted)

把它放进去，你就可以开始了: *属性可以在IB中设置，如果没有设置高亮背景，按下时背景不会改变

private var highlightedBackgroundColors = [UIButton:UIColor]()
private var unhighlightedBackgroundColors = [UIButton:UIColor]()
extension UIButton {

    @IBInspectable var highlightedBackgroundColor: UIColor? {
        get {
            return highlightedBackgroundColors[self]
        }

        set {
            highlightedBackgroundColors[self] = newValue
        }
    }

    override open var backgroundColor: UIColor? {
        get {
            return super.backgroundColor
        }

        set {
            unhighlightedBackgroundColors[self] = newValue
            super.backgroundColor = newValue
        }
    }

    override open var isHighlighted: Bool {
        get {
            return super.isHighlighted
        }

        set {
            if highlightedBackgroundColor != nil {
                super.backgroundColor = newValue ? highlightedBackgroundColor : unhighlightedBackgroundColors[self]
            }
            super.isHighlighted = newValue
        }
    }
}

不确定这是否解决了你所追求的问题，或者是否符合你的总体开发环境，但我想尝试的第一件事是改变触地事件按钮的背景颜色。

选项1:

你需要捕捉两个事件，当用户按下按钮时UIControlEventTouchDown。UIControlEventTouchUpInside和UIControlEventTouchUpOutside将用于当它们释放按钮以返回正常状态时

UIButton *myButton =  [UIButton buttonWithType:UIButtonTypeCustom];
[myButton setFrame:CGRectMake(10.0f, 10.0f, 100.0f, 20.f)];
[myButton setBackgroundColor:[UIColor blueColor]];
[myButton setTitle:@"click me:" forState:UIControlStateNormal];
[myButton setTitle:@"changed" forState:UIControlStateHighlighted];
[myButton addTarget:self action:@selector(buttonHighlight:) forControlEvents:UIControlEventTouchDown];
[myButton addTarget:self action:@selector(buttonNormal:) forControlEvents:UIControlEventTouchUpInside];

选项2:

返回你想要的高亮颜色的图像。这也可以是一个类别。

+ (UIImage *)imageWithColor:(UIColor *)color {
   CGRect rect = CGRectMake(0.0f, 0.0f, 1.0f, 1.0f);
   UIGraphicsBeginImageContext(rect.size);
   CGContextRef context = UIGraphicsGetCurrentContext();

   CGContextSetFillColorWithColor(context, [color CGColor]);
   CGContextFillRect(context, rect);

   UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
   UIGraphicsEndImageContext();

   return image;
}

然后更改按钮的高亮显示状态:

[myButton setBackgroundImage:[self imageWithColor:[UIColor greenColor]] forState:UIControlStateHighlighted];

下面是Swift中选择按钮状态的代码:

func imageWithColor(color:UIColor) -> UIImage {
    let rect:CGRect = CGRectMake(0.0, 0.0, 1.0, 1.0)
     UIGraphicsBeginImageContext(rect.size)
    let context:CGContextRef = UIGraphicsGetCurrentContext()!
    CGContextSetFillColorWithColor(context, color.CGColor)
    CGContextFillRect(context, rect)
    let image:UIImage = UIGraphicsGetImageFromCurrentImageContext();
    return image;
}

例子:

    self.button.setImage(self.imageWithColor(UIColor.blackColor()), forState: .Highlighted)

UIButton扩展与Swift 3+语法:

extension UIButton {
    func setBackgroundColor(color: UIColor, forState: UIControlState) {
        UIGraphicsBeginImageContext(CGSize(width: 1, height: 1))
        UIGraphicsGetCurrentContext()!.setFillColor(color.cgColor)
        UIGraphicsGetCurrentContext()!.fill(CGRect(x: 0, y: 0, width: 1, height: 1))
        let colorImage = UIGraphicsGetImageFromCurrentImageContext()
        UIGraphicsEndImageContext()
        self.setBackgroundImage(colorImage, for: forState)
    }}

像这样使用它:

YourButton.setBackgroundColor(color: UIColor.white, forState: .highlighted)

最初的回答: https://stackoverflow.com/a/30604658/3659227

如果你有一张图片，试试这个:

-(void)setBackgroundImage:(UIImage *)image forState:(UIControlState)state;

或者看看showsTouchWhenHighlighted是否足够。