你可以重写UIButton的setHighlighted方法。

objective - c

- (void)setHighlighted:(BOOL)highlighted {
    [super setHighlighted:highlighted];

    if (highlighted) {
        self.backgroundColor = UIColorFromRGB(0x387038);
    } else {
        self.backgroundColor = UIColorFromRGB(0x5bb75b);
    }
}

Swift 3.0和Swift 4.1

override open var isHighlighted: Bool {
    didSet {
        backgroundColor = isHighlighted ? UIColor.black : UIColor.white
    }
}

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];

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。

你可以子类化UIButton并创建forState。

colourButton.h

#import <UIKit/UIKit.h>

@interface colourButton : UIButton

-(void)setBackgroundColor:(UIColor *)backgroundColor forState:(UIControlState)state;

@end

颜色按钮.m

#import "colourButton.h"

@implementation colourButton
{
    NSMutableDictionary *colours;
}

-(id)initWithCoder:(NSCoder *)aDecoder
{
    self = [super initWithCoder:aDecoder];

    // If colours does not exist
    if(!colours)
    {
        colours = [NSMutableDictionary new];  // The dictionary is used to store the colour, the key is a text version of the ENUM
        colours[[NSString stringWithFormat:@"%lu", UIControlStateNormal]] = (UIColor*)self.backgroundColor;  // Store the original background colour
    }

    return self;
}

-(void)setBackgroundColor:(UIColor *)backgroundColor forState:(UIControlState)state
{
    // If it is normal then set the standard background here
    if(state & UIControlStateNormal)
    {
        [super setBackgroundColor:backgroundColor];
    }

    // Store the background colour for that state
    colours[[NSString stringWithFormat:@"%lu", state]]= backgroundColor;
}

-(void)setHighlighted:(BOOL)highlighted
{
    // Do original Highlight
    [super setHighlighted:highlighted];

    // Highlight with new colour OR replace with orignial
    if (highlighted && colours[[NSString stringWithFormat:@"%lu", UIControlStateHighlighted]])
    {
        self.backgroundColor = colours[[NSString stringWithFormat:@"%lu", UIControlStateHighlighted]];
    }
    else
    {
        self.backgroundColor = colours[[NSString stringWithFormat:@"%lu", UIControlStateNormal]];
    }
}

-(void)setSelected:(BOOL)selected
{
    // Do original Selected
    [super setSelected:selected];

    // Select with new colour OR replace with orignial
    if (selected && colours[[NSString stringWithFormat:@"%lu", UIControlStateSelected]])
    {
        self.backgroundColor = colours[[NSString stringWithFormat:@"%lu", UIControlStateSelected]];
    }
    else
    {
        self.backgroundColor = colours[[NSString stringWithFormat:@"%lu", UIControlStateNormal]];
    }
}

@end

注释(这是一个例子，我知道有问题，这里有一些)

我已经使用了一个NSMutableDictionay来存储每个状态的UIColor，我必须为键做一个讨厌的文本转换，因为UIControlState不是一个很好的直Int。如果它在哪里，你可以init一个数组与许多对象，并使用状态作为一个索引。

因此，你有很多困难，例如一个选中&禁用按钮，一些更多的逻辑是需要的。

另一个问题是，如果你试图同时设置多种颜色，我没有尝试过一个按钮，但如果你能这样做，它可能不会工作

 [btn setBackgroundColor:colour forState:UIControlStateSelected & UIControlStateHighlighted];

我假设这是StoryBoard，没有init和initWithFrame如果你需要，可以添加它们。

class CustomButton: UIButton {

    override var isHighlighted: Bool {
        didSet {
            if (isHighlighted) {
                alpha = 0.5
            }
            else {
                alpha = 1
            }            
        }
    }

}

更新:

使用UIButtonBackgroundColor Swift库。

OLD:

使用下面的帮助工具创建一个1px x 1px的图像，灰度填充颜色:

UIImage *image = ACUTilingImageGray(248/255.0, 1);

或RGB填充颜色:

UIImage *image = ACUTilingImageRGB(253/255.0, 123/255.0, 43/255.0, 1);

然后，使用该图像设置按钮的背景图像:

[button setBackgroundImage:image forState:UIControlStateNormal];

助手

#pragma mark - Helpers

UIImage *ACUTilingImageGray(CGFloat gray, CGFloat alpha)
{
    return ACUTilingImage(alpha, ^(CGContextRef context) {
        CGContextSetGrayFillColor(context, gray, alpha);
    });
}

UIImage *ACUTilingImageRGB(CGFloat red, CGFloat green, CGFloat blue, CGFloat alpha)
{
    return ACUTilingImage(alpha, ^(CGContextRef context) {
        CGContextSetRGBFillColor(context, red, green, blue, alpha);
    });
}

UIImage *ACUTilingImage(CGFloat alpha, void (^setFillColor)(CGContextRef context))
{
    CGRect rect = CGRectMake(0, 0, 0.5, 0.5);
    UIGraphicsBeginImageContextWithOptions(rect.size, alpha == 1, 0);
    CGContextRef context = UIGraphicsGetCurrentContext();
    setFillColor(context);
    CGContextFillRect(context, rect);
    UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    return image;
}

注意:ACU是我的Cocoa Touch静态库称为Acani Utilities的类前缀，其中AC是Acani, U是Utilities。