blocks|key|1253807|text|我有99%25的把握，你不能改变UIButton的背景颜色。相反，你必须自己去改变背景图像，我认为这是一件痛苦的事情。我很惊讶我不得不这么做。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1253808|如果我错了，或者如果有更好的方法而不需要设置背景图片，请让我知道|1253809|[random+setBackgroundImage:[UIImage+imageNamed:@"toggleoff.png"]+forState:UIControlStateNormal];
++++[random+setTitleColor:[UIColor+darkTextColor]+forState:UIControlStateNormal];


[random+setBackgroundImage:[UIImage+imageNamed:@"toggleon.png"]+forState:UIControlStateNormal];
++++[random+setTitleColor:[UIColor+whiteColor]+forState:UIControlStateNormal];|code-block|syntax|javascript|1253810|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Well I'm 99% percent positive that you cannot just go and change the background color of a UIButton. Instead you have to go and change the background images yourself which I think is a pain. I'm amazed that I had to do this.

If I'm wrong or if theres a better way without having to set background images please let me know

<pre><code>[random setBackgroundImage:[UIImage imageNamed:@"toggleoff.png"] forState:UIControlStateNormal];
 [random setTitleColor:[UIColor darkTextColor] forState:UIControlStateNormal];


[random setBackgroundImage:[UIImage imageNamed:@"toggleon.png"] forState:UIControlStateNormal];
 [random setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
</code></pre>

blocks|key|1038910|text|我猜你说的是和UIButtonTypeRoundedRect的UIButton吧？你不能改变它的背景颜色。当你尝试改变它的背景颜色时，你相当于改变了绘制按钮的矩形的颜色(通常是清晰的)。所以有两条路要走。要么子类化UIButton并重写它的-drawRect:方法，要么为不同的按钮状态创建图像(这样做非常好)。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1038911|如果你在Interface+Builder中设置背景图像，你应该注意到IB并不支持为按钮可能具有的所有状态设置图像，所以我建议在代码中这样设置图像：|1038912|UIButton+*myButton+=+[UIButton+buttonWithType:UIButtonTypeCustom];
[myButton+setBackgroundImage:[UIImage+imageNamed:@"normal.png"]+forState:UIControlStateNormal];
[myButton+setBackgroundImage:[UIImage+imageNamed:@"disabled.png"]+forState:UIControlStateDisabled];
[myButton+setBackgroundImage:[UIImage+imageNamed:@"selected.png"]+forState:UIControlStateSelected];
[myButton+setBackgroundImage:[UIImage+imageNamed:@"higligted.png"]+forState:UIControlStateHighlighted];
[myButton+setBackgroundImage:[UIImage+imageNamed:@"highlighted%2Bselected.png"]+forState:(UIControlStateHighlighted+%7C+UIControlStateSelected)];|code-block|syntax|javascript|1038913|最后一行显示了如何为选中和突出显示状态(这是IB不能设置的状态)设置图像。如果您的按钮不需要选定状态，则不需要选定的图像(第4&6行)。|1038914|entityMap^0|7|N|3C|A|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@$9|R|A|S|B|C]|$9|T|A|U|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|V|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|W|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|X|8|@]|D|@]|E|$]]|$1|O|3|-4|5|6|7|Y|8|@]|D|@]|E|$]]]|P|$]]

I assume you're talking about a UIButton with <code>UIButtonTypeRoundedRect</code>?
You can't change the background color of that. When you try changing it's background color you're rather changing the color of the rect the button is drawn on (which is usually clear).
So there are two ways to go. Either you subclass UIButton and overwrite its <code>-drawRect:</code> method or you create images for the different button states (which is perfectly fine to do).

If you set the background images in Interface Builder you should notice that IB doesn't support setting images for all the states the button can have, so I recommend setting the images in code like this:

<pre><code>UIButton *myButton = [UIButton buttonWithType:UIButtonTypeCustom];
[myButton setBackgroundImage:[UIImage imageNamed:@"normal.png"] forState:UIControlStateNormal];
[myButton setBackgroundImage:[UIImage imageNamed:@"disabled.png"] forState:UIControlStateDisabled];
[myButton setBackgroundImage:[UIImage imageNamed:@"selected.png"] forState:UIControlStateSelected];
[myButton setBackgroundImage:[UIImage imageNamed:@"higligted.png"] forState:UIControlStateHighlighted];
[myButton setBackgroundImage:[UIImage imageNamed:@"highlighted+selected.png"] forState:(UIControlStateHighlighted | UIControlStateSelected)];
</code></pre>

The last line shows how to set an image for the selected &amp; highlighted state (that's the one IB can't set).
You don't need the selected images (line 4 &amp; 6) if you're button dosn't need a selected state.

blocks|key|1253954|text|为UIControlEventTouched的UIButton添加第二个目标，并更改UIButton背景颜色。然后在UIControlEventTouchUpInside目标中将其改回；|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1253955|entityMap^0|1|L|N|8|16|8|1M|R|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]|$9|M|A|N|B|C]|$9|O|A|P|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|G|$]]

add a second target for the <code>UIButton</code> for <code>UIControlEventTouched</code> and change the <code>UIButton</code> background color. Then change it back in the <code>UIControlEventTouchUpInside</code> target;

blocks|key|1254025|text|​|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1254026|📷|atomic|offset|length|1254027|1254028|如果您不想使用图像，并且希望它看起来与四舍五入的矩形样式完全相同，请尝试此方法。只需在UIButton上放置一个具有相同边框和自动调整大小的蒙版的UIView，将alpha设置为0.3，并将背景设置为一种颜色。然后使用下面的代码片段来裁剪彩色覆盖视图上的圆角边缘。此外，取消选中UIView上IB中的“User+Interaction+Enabled”复选框，以允许触摸事件级联到下面的UIButton。|1254029|一个副作用是你的文本也会被着色。|1254030|#import+<QuartzCore/QuartzCore.h>

colorizeOverlayView.layer.cornerRadius+=+10.0f;
colorizeOverlayView.layer.masksToBounds+=+YES;|code-block|syntax|javascript|1254031|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/682a4bec7afa54167ff26d875ff8a153.png|imageAlt^0|0|0|1|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Z|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|10|8|@]|9|@$E|11|F|12|1|13]]|A|$]]|$1|G|3|4|5|6|7|14|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|15|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|16|8|@]|9|@]|A|$]]|$1|L|3|M|5|N|7|17|8|@]|9|@]|A|$O|P]]|$1|Q|3|-4|5|6|7|18|8|@]|9|@]|A|$]]]|R|$S|$5|T|U|V|A|$W|X|Y|-4]]]]

<img src="https://i.stack.imgur.com/DPk3e.png" alt="colored UIButton">

If you are not wanting to use images, and want it to look exactly like the Rounded Rect style, try this. Just place a UIView over the UIButton, with an identical frame and auto resize mask, set the alpha to 0.3, and set the background to a color. Then use the snippet below to clip the rounded edges off the colored overlay view. Also, uncheck the 'User Interaction Enabled' checkbox in IB on the UIView to allow touch events to cascade down to the UIButton underneath. 

One side effect is that your text will also be colorized.

<pre><code>#import &lt;QuartzCore/QuartzCore.h&gt;

colorizeOverlayView.layer.cornerRadius = 10.0f;
colorizeOverlayView.layer.masksToBounds = YES;
</code></pre>

blocks|key|1254083|text|我有一个不同的方法，|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1254084|[btFind+setTitle:NSLocalizedString(@"Find",+@"")+forState:UIControlStateNormal];++++
[btFind+setBackgroundImage:[CommonUIUtility+imageFromColor:[UIColor+cyanColor]]+
++++++++forState:UIControlStateNormal];
btFind.layer.cornerRadius+=+8.0;
btFind.layer.masksToBounds+=+YES;
btFind.layer.borderColor+=+[UIColor+lightGrayColor].CGColor;
btFind.layer.borderWidth+=+1;|code-block|syntax|javascript|1254085|来自CommonUIUtility，|1254086|%2B+(UIImage+*)+imageFromColor:(UIColor+*)color+{
++++CGRect+rect+=+CGRectMake(0,+0,+1,+1);
++++UIGraphicsBeginImageContext(rect.size);
++++CGContextRef+context+=+UIGraphicsGetCurrentContext();
++++CGContextSetFillColorWithColor(context,+[color+CGColor]);
++++//++[[UIColor+colorWithRed:222./255+green:227./255+blue:+229./255+alpha:1]+CGColor])+;
++++CGContextFillRect(context,+rect);
++++UIImage+*img+=+UIGraphicsGetImageFromCurrentImageContext();
++++UIGraphicsEndImageContext();
++++return+img;
}|1254087|别忘了#import+<QuartzCore/QuartzCore.h>|offset|length|style|CODE|1254088|entityMap^0|0|0|0|0|3|X|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|W|8|@$M|X|N|Y|O|P]]|9|@]|A|$]]|$1|Q|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|R|$]]

I have a different approach,

<pre><code>[btFind setTitle:NSLocalizedString(@"Find", @"") forState:UIControlStateNormal]; 
[btFind setBackgroundImage:[CommonUIUtility imageFromColor:[UIColor cyanColor]] 
 forState:UIControlStateNormal];
btFind.layer.cornerRadius = 8.0;
btFind.layer.masksToBounds = YES;
btFind.layer.borderColor = [UIColor lightGrayColor].CGColor;
btFind.layer.borderWidth = 1;
</code></pre>

From CommonUIUtility,

<pre><code>+ (UIImage *) imageFromColor:(UIColor *)color {
 CGRect rect = CGRectMake(0, 0, 1, 1);
 UIGraphicsBeginImageContext(rect.size);
 CGContextRef context = UIGraphicsGetCurrentContext();
 CGContextSetFillColorWithColor(context, [color CGColor]);
 // [[UIColor colorWithRed:222./255 green:227./255 blue: 229./255 alpha:1] CGColor]) ;
 CGContextFillRect(context, rect);
 UIImage *img = UIGraphicsGetImageFromCurrentImageContext();
 UIGraphicsEndImageContext();
 return img;
}
</code></pre>

Don't forget to <code>#import &lt;QuartzCore/QuartzCore.h&gt;</code>

blocks|key|1254163|text|另一种可能性(最好最漂亮的imho)：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1254164|在界面生成器中创建具有所需背景颜色的2个段的UISegmentedControl。将类型设置为“bar”。然后，将其更改为只有一条线段。接口构建器不接受一个段，因此您必须以编程方式完成。|1254165|因此，为该按钮创建一个IBOutlet，并将其添加到视图的viewDidLoad中：|1254166|[segmentedButton+removeSegmentAtIndex:1+animated:NO];|code-block|syntax|javascript|1254167|现在你有了一个漂亮的、有光泽的、有颜色的按钮，它具有指定的背景颜色。对于操作，使用“value+changed”事件。|1254168|(我在http://chris-software.com/index.php/2009/05/13/creating-a-nice-glass-buttons/上找到了这个)。谢谢Chris！|offset|length|1254169|entityMap|0|LINK|mutability|MUTABLE|url|http://chris-software.com/index.php/2009/05/13/creating-a-nice-glass-buttons/^0|0|0|0|0|0|3|25|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Z|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|10|8|@]|9|@]|A|$]]|$1|F|3|G|5|H|7|11|8|@]|9|@]|A|$I|J]]|$1|K|3|L|5|6|7|12|8|@]|9|@]|A|$]]|$1|M|3|N|5|6|7|13|8|@]|9|@$O|14|P|15|1|16]]|A|$]]|$1|Q|3|-4|5|6|7|17|8|@]|9|@]|A|$]]]|R|$S|$5|T|U|V|A|$W|X]]]]

Another possibility (the best and most beautiful imho):

Create a UISegmentedControl with 2 segments in the required background color in Interface Builder. Set the type to 'bar'. Then, change it to having only one segment. Interface builder does not accept one segment so you have to do that programmatically.

Therefore, create an IBOutlet for this button and add this to the viewDidLoad of your view:

<pre><code>[segmentedButton removeSegmentAtIndex:1 animated:NO];
</code></pre>

Now you have a beautiful glossy, colored button with the specified background color.
For actions, use the 'value changed' event.

(I have found this on <a href="http://chris-software.com/index.php/2009/05/13/creating-a-nice-glass-buttons/">http://chris-software.com/index.php/2009/05/13/creating-a-nice-glass-buttons/</a>). Thanks Chris!

blocks|key|1254228|text|子类化UIButton并重写setHighlighted和setSelected方法|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1254229|-(void)+setHighlighted:(BOOL)highlighted+{

++if(highlighted)+{
++++self.backgroundColor+=+[self.mainColor+darkerShade];
++}+else+{
++++self.backgroundColor+=+self.mainColor;
++}
++[super+setHighlighted:highlighted];
}

-(void)+setSelected:(BOOL)selected+{

++if(selected)+{
++++self.backgroundColor+=+[self.mainColor+darkerShade];
++}+else+{
++++self.backgroundColor+=+self.mainColor;
++}
++[super+setSelected:selected];
}|code-block|syntax|javascript|1254230|我的darkerShade方法在UIColor类别中，如下所示|1254231|-(UIColor*)+darkerShade+{

++float+red,+green,+blue,+alpha;
++[self+getRed:&red+green:&green+blue:&blue+alpha:&alpha];

++double+multiplier+=+0.8f;
++return+[UIColor+colorWithRed:red+*+multiplier+green:green+*+multiplier+blue:blue*multiplier+alpha:alpha];
}|1254232|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

Subclass UIButton and override setHighlighted and setSelected methods

<pre><code>-(void) setHighlighted:(BOOL)highlighted {

 if(highlighted) {
 self.backgroundColor = [self.mainColor darkerShade];
 } else {
 self.backgroundColor = self.mainColor;
 }
 [super setHighlighted:highlighted];
}

-(void) setSelected:(BOOL)selected {

 if(selected) {
 self.backgroundColor = [self.mainColor darkerShade];
 } else {
 self.backgroundColor = self.mainColor;
 }
 [super setSelected:selected];
}
</code></pre>

My darkerShade method is in a UIColor category like this

<pre><code>-(UIColor*) darkerShade {

 float red, green, blue, alpha;
 [self getRed:&amp;red green:&amp;green blue:&amp;blue alpha:&amp;alpha];

 double multiplier = 0.8f;
 return [UIColor colorWithRed:red * multiplier green:green * multiplier blue:blue*multiplier alpha:alpha];
}
</code></pre>

blocks|key|1254269|text|对于专业和漂亮的按钮，你可以检查这个custom+button+component。您可以直接在视图和表视图中使用它，也可以修改源代码以满足您的需求。希望这能有所帮助。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1254270|entityMap|0|LINK|mutability|MUTABLE|url|http://www.binpress.com/app/glossy-button-for-ios/968^0|I|N|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

For professional and nice looking buttons, you may check this <a href="http://www.binpress.com/app/glossy-button-for-ios/968" rel="nofollow">custom button component</a>. You can use it directly in your views and tableviews or modify the source code to make it meet your needs. Hope this helps.

blocks|key|1039406|text|你也可以添加一个CALayer到按钮--你可以用它来做很多事情，包括一个颜色覆盖，这个例子使用了一个普通的颜色层，你也可以很容易地对颜色进行渐变。请注意，虽然添加的层会遮挡下面的层|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1039407|%2B(void)makeButtonColored:(UIButton*)button+color1:(UIColor*)+color
{

++++CALayer+*layer+=+button.layer;
++++layer.cornerRadius+=+8.0f;
++++layer.masksToBounds+=+YES;
++++layer.borderWidth+=+4.0f;
++++layer.opacity+=+.3;//
++++layer.borderColor+=+[UIColor+colorWithWhite:0.4f+alpha:0.2f].CGColor;

++++CAGradientLayer+*colorLayer+=+[CAGradientLayer+layer];
++++colorLayer.cornerRadius+=+8.0f;
++++colorLayer.frame+=+button.layer.bounds;
++++//set+gradient+colors
++++colorLayer.colors+=+[NSArray+arrayWithObjects:
+++++++++++++++++++++++++(id)+color.CGColor,
+++++++++++++++++++++++++(id)+color.CGColor,
+++++++++++++++++++++++++nil];

++++//set+gradient+locations
++++colorLayer.locations+=+[NSArray+arrayWithObjects:
++++++++++++++++++++++++++++[NSNumber+numberWithFloat:0.0f],
++++++++++++++++++++++++++++[NSNumber+numberWithFloat:1.0f],
++++++++++++++++++++++++++++nil];


++++[button.layer+addSublayer:colorLayer];

}|code-block|syntax|javascript|1039408|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

You can also add a CALayer to the button - you can do lots of things with these including a color overlay, this example uses a plain color layer you can also easily graduate the colour. Be aware though added layers obscure those underneath

<pre><code>+(void)makeButtonColored:(UIButton*)button color1:(UIColor*) color
{

 CALayer *layer = button.layer;
 layer.cornerRadius = 8.0f;
 layer.masksToBounds = YES;
 layer.borderWidth = 4.0f;
 layer.opacity = .3;//
 layer.borderColor = [UIColor colorWithWhite:0.4f alpha:0.2f].CGColor;

 CAGradientLayer *colorLayer = [CAGradientLayer layer];
 colorLayer.cornerRadius = 8.0f;
 colorLayer.frame = button.layer.bounds;
 //set gradient colors
 colorLayer.colors = [NSArray arrayWithObjects:
 (id) color.CGColor,
 (id) color.CGColor,
 nil];

 //set gradient locations
 colorLayer.locations = [NSArray arrayWithObjects:
 [NSNumber numberWithFloat:0.0f],
 [NSNumber numberWithFloat:1.0f],
 nil];


 [button.layer addSublayer:colorLayer];

}
</code></pre>

blocks|key|1039516|text|这没有子类化UIButton那么优雅，但是如果你只是想要一些快速的东西-我所做的是创建一个自定义按钮，然后是一个1px+x+1px的图像，我希望按钮的颜色是这样的，并将按钮的背景设置为突出显示的状态的图像-可以满足我的需要。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1039517|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

This isn't as elegant as sub-classing UIButton, however if you just want something quick - what I did was create custom button, then a 1px by 1px image with the colour I'd want the button to be, and set the background of the button to that image for the highlighted state - works for my needs.

blocks|key|1039549|text|根据@EthanB的建议和@karim做一个背面填充的矩形，我刚刚为UIButton创建了一个类别来实现这一点。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1039550|只需插入类别代码：https://github.com/zmonteca/UIButton-PLColor|offset|length|1039551|用法：|1039552|[button+setBackgroundColor:uiTextColor+forState:UIControlStateDisabled];|code-block|syntax|javascript|1039553|要使用的可选forStates：|1039554|UIControlStateNormal
UIControlStateHighlighted
UIControlStateDisabled
UIControlStateSelected|1039555|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/zmonteca/UIButton-PLColor^0|0|9|18|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Z|8|@]|9|@$D|10|E|11|1|12]]|A|$]]|$1|F|3|G|5|6|7|13|8|@]|9|@]|A|$]]|$1|H|3|I|5|J|7|14|8|@]|9|@]|A|$K|L]]|$1|M|3|N|5|6|7|15|8|@]|9|@]|A|$]]|$1|O|3|P|5|J|7|16|8|@]|9|@]|A|$K|L]]|$1|Q|3|-4|5|6|7|17|8|@]|9|@]|A|$]]]|R|$S|$5|T|U|V|A|$W|X]]]]

Per @EthanB suggestion and @karim making a back filled rectangle, I just created a category for the UIButton to achieve this. 

Just drop in the Category code: <a href="https://github.com/zmonteca/UIButton-PLColor" rel="nofollow">https://github.com/zmonteca/UIButton-PLColor</a>

Usage:

<pre><code>[button setBackgroundColor:uiTextColor forState:UIControlStateDisabled];
</code></pre>

Optional forStates to use:

<pre><code>UIControlStateNormal
UIControlStateHighlighted
UIControlStateDisabled
UIControlStateSelected
</code></pre>

blocks|key|1039620|text|我知道这在很久以前就被问到了，现在有了一个新的UIButtonTypeSystem。但较新的问题被标记为此问题的副本，因此这是我在iOS+7系统按钮上下文中的较新答案，使用.tintColor属性。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1039621|let+button+=+UIButton(type:+.System)
button.setTitle("My+Button",+forState:+.Normal)
button.tintColor+=+.redColor()|code-block|syntax|javascript|1039622|entityMap^0|2E|A|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

I know this was asked a long time ago and now there's a new UIButtonTypeSystem. But newer questions are being marked as duplicates of this question so here's my newer answer in the context of an iOS 7 system button, use the <code>.tintColor</code> property. 

<pre><code>let button = UIButton(type: .System)
button.setTitle("My Button", forState: .Normal)
button.tintColor = .redColor()
</code></pre>

blocks|key|1039685|text|[myButton+setBackgroundColor:[UIColor+blueColor]];+[myButton+setTitleColor:[UIColor+whiteColor]+forState:UIControlStateNormal];|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1039686|可以通过这种方式进行更改，也可以在故事板上更改右侧选项上的背景。|1039687|entityMap^0|0|3J|0|0^^$0|@$1|2|3|4|5|6|7|J|8|@$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|M|8|@]|D|@]|E|$]]|$1|H|3|-4|5|6|7|N|8|@]|D|@]|E|$]]]|I|$]]

<code>[myButton setBackgroundColor:[UIColor blueColor]];
[myButton setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];</code>

It's possible change this way or going on Storyboard and change background on options in right side.

blocks|key|1254631|text|Swift+3：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1254632|++++++++static+func+imageFromColor(color:+UIColor,+width:+CGFloat,+height:+CGFloat)+->+UIImage+{
++++++++++++let+rect+=+CGRect(x:+0,+y:+0,+width:+width,+height:+height)
++++++++++++UIGraphicsBeginImageContext(rect.size)
++++++++++++let+context+=+UIGraphicsGetCurrentContext()!
++++++++++++context.setFillColor(color.cgColor)
++++++++++++context.fill(rect)
++++++++++++let+img+=+UIGraphicsGetImageFromCurrentImageContext()!
++++++++++++UIGraphicsEndImageContext()
++++++++++++return+img
++++++++}

++++++++let+button+=+UIButton(type:+.system)
++++++++let+image+=+imageFromColor(color:+.red,+width:+
++++++++button.frame.size.width,+height:+button.frame.size.height)
++++++++button.setBackgroundImage(image,+for:+.normal)|code-block|syntax|javascript|1254633|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Swift 3:

<pre><code> static func imageFromColor(color: UIColor, width: CGFloat, height: CGFloat) -&gt; UIImage {
 let rect = CGRect(x: 0, y: 0, width: width, height: height)
 UIGraphicsBeginImageContext(rect.size)
 let context = UIGraphicsGetCurrentContext()!
 context.setFillColor(color.cgColor)
 context.fill(rect)
 let img = UIGraphicsGetImageFromCurrentImageContext()!
 UIGraphicsEndImageContext()
 return img
 }

 let button = UIButton(type: .system)
 let image = imageFromColor(color: .red, width: 
 button.frame.size.width, height: button.frame.size.height)
 button.setBackgroundImage(image, for: .normal)
</code></pre>

blocks|key|1254682|text|对于iOS+15%2B，苹果提供了一个简单的按钮配置来实现这一点。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1254683|Objective-C：|1254684|randomButton.configuration+=+[UIButtonConfiguration+filledButtonConfiguration];|offset|length|style|CODE|1254685|Swift：|1254686|randomButton.configuration+=+.filled()|1254687|entityMap^0|0|0|0|27|0|0|0|12|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Q|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|R|8|@$F|S|G|T|H|I]]|9|@]|A|$]]|$1|J|3|K|5|6|7|U|8|@]|9|@]|A|$]]|$1|L|3|M|5|6|7|V|8|@$F|W|G|X|H|I]]|9|@]|A|$]]|$1|N|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|O|$]]

For iOS 15+ Apple provides a simple button configuration to accomplish this.
Objective-C:
<code>randomButton.configuration = [UIButtonConfiguration filledButtonConfiguration];</code>
Swift:
<code>randomButton.configuration = .filled()</code>

This one has me stumped.

Is it possible at all to change the background color of a UIButton in Cocoa for iPhone. 
I've tried setting the background color but it only changes the corners. <code>setBackgroundColor:</code> seems to be the only method available for such things.

<pre><code>[random setBackgroundColor:[UIColor blueColor]];
[random.titleLabel setBackgroundColor:[UIColor blueColor]];
</code></pre>

Is it possible to change a UIButtons background color?

Objective-C

Swift

这把我难倒了。有没有可能在iPhone的Cocoa中更改UIButton的背景颜色？我试过设置背景颜色，但它只改变了边角。对于这样的事情，setBackgroundColor:似乎是唯一可用的方法。[random setBackgroundColor:[UIColor blueColor]];[random.title...

问可以更改UIButtons的背景颜色吗？
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问可以更改UIButtons的背景颜色吗？
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