blocks|key|1208562|text|如下所示修改代码，将first+image设置为button/可以使用for+loop创建和设置图像为use按钮|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1208563|NSArray+*buttonImage=[NSArray+arrayWithObjects:[UIImage+imageNamed:@"Cover_0.png"],
++++++++++++++++++[UIImage+imageNamed:@"Cover_1.png"],
++++++++++++++++++[UIImage+imageNamed:@"Cover_2.png"],
++++++++++++++++++[UIImage+imageNamed:@"Cover_3.png"],
++++++++++++++++++[UIImage+imageNamed:@"Cover_4.png"],
++++++++++++++++++[UIImage+imageNamed:@"Cover_5.png"],
++++++++++++++++++[UIImage+imageNamed:@"Cover_6.png"],
++++++++++++++++++[UIImage+imageNamed:@"Cover_7.png"],nil];

UIButton+*button+=+[UIButton+buttonWithType:UIButtonTypeCustom];
button.frame+=+CGRectMake(0,+0,+200.0f,+200.0f);
[button+setTitle:[NSString+stringWithFormat:@"%25i",+index]+forState:UIControlStateNormal];
[button+setTitleColor:[UIColor+blackColor]+forState:UIControlStateNormal];
button.titleLabel.font+=+[button.titleLabel.font+fontWithSize:50];

[button+setImage:(UIImage*)[buttonImage+objectAtIndex:1]+forState:UIControlStateNormal];
[button+addTarget:self+action:@selector(buttonTapped:)+forControlEvents:UIControlEventTouchUpInside];
return+button;|code-block|syntax|javascript|1208564|变更线|1208565|[button+setImage:(UIImage*)[buttonImage+objectAtIndex:1]+forState:UIControlStateNormal];|1208566|这将把image设置为button。您已发送一个数组来设置图像，因此应用程序将崩溃|1208567|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

Modify the code as below to set first image to button/ you can use for loop to create and set images to uibuttons

<pre><code>NSArray *buttonImage=[NSArray arrayWithObjects:[UIImage imageNamed:@"Cover_0.png"],
 [UIImage imageNamed:@"Cover_1.png"],
 [UIImage imageNamed:@"Cover_2.png"],
 [UIImage imageNamed:@"Cover_3.png"],
 [UIImage imageNamed:@"Cover_4.png"],
 [UIImage imageNamed:@"Cover_5.png"],
 [UIImage imageNamed:@"Cover_6.png"],
 [UIImage imageNamed:@"Cover_7.png"],nil];

UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
button.frame = CGRectMake(0, 0, 200.0f, 200.0f);
[button setTitle:[NSString stringWithFormat:@"%i", index] forState:UIControlStateNormal];
[button setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
button.titleLabel.font = [button.titleLabel.font fontWithSize:50];

[button setImage:(UIImage*)[buttonImage objectAtIndex:1] forState:UIControlStateNormal];
[button addTarget:self action:@selector(buttonTapped:) forControlEvents:UIControlEventTouchUpInside];
return button;
</code></pre>

change line

<pre><code>[button setImage:(UIImage*)[buttonImage objectAtIndex:1] forState:UIControlStateNormal];
</code></pre>

This will set image to button. You have sent an array to set image so application will crash

blocks|key|2845755|text|不能将图像数组设置为UIButton图像属性。如果您查看UIButton的文档，您会发现它需要一个UIImage。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2845756|entityMap|0|LINK|mutability|MUTABLE|url|http://developer.apple.com/library/ios/DOCUMENTATION/UIKit/Reference/UIButton_Class/UIButton/UIButton.html#//apple_ref/occ/instm/UIButton/setImage%253aforState%253a^0|A|8|1D|7|S|8|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@$9|O|A|P|B|C]|$9|Q|A|R|B|C]]|D|@$9|S|A|T|1|U]]|E|$]]|$1|F|3|-4|5|6|7|V|8|@]|D|@]|E|$]]]|G|$H|$5|I|J|K|E|$L|M]]]]

You can't set an array of images to the <code>UIButton</code> image property. If you look at the documentation of <a href="http://developer.apple.com/library/ios/DOCUMENTATION/UIKit/Reference/UIButton_Class/UIButton/UIButton.html#//apple_ref/occ/instm/UIButton/setImage%3aforState%3a" rel="nofollow">UIButton</a> you see that it expects a <code>UIImage</code>.

blocks|key|1208607|text|尝试：[button+setImage:buttonImage+objectAtIndex:index+forState:UIControlStateNormal]；|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1208608|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|$]]

Try : [button setImage:[buttonImage objectAtIndex:index] forState:UIControlStateNormal];

blocks|key|2933281|text|你代码中的索引是什么？？设置以下内容：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2933282|[button+setBackgroundImage:[buttonImage+objectAtIndex:index]+forState:UIControlStateNormal];|code-block|syntax|javascript|2933283|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|$]]

What is the index in your code?? Set This:

<pre><code>[button setBackgroundImage:[buttonImage objectAtIndex:index] forState:UIControlStateNormal];
</code></pre>

blocks|key|1208645|text|要使用选择器数组以编程方式创建按钮，您可以使用以下代码片段：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1208646|//定义策略|1208647|@interface+DataItemStrategy+:+NSObject
@property(nonatomic,+assign)+SEL+someSelector;
@end

@implementation+DataItemStrategy

@synthesize+someSelector+=+_someSelector;

-(id)initWithSelector:(SEL)someSelector
{
++++self+=+[super+init];
++++if+(self)
++++{
++++++++self.someSelector+=+someSelector;
++++}
++++return+self;
}

@end


-(void)createButtons
{
++++NSArray+*buttonImages+=[NSArray+arrayWithObjects:[UIImage+imageNamed:@"Cover_0.png"],
++++++++++++++++++++++++++[UIImage+imageNamed:@"Cover_1.png"],
++++++++++++++++++++++++++[UIImage+imageNamed:@"Cover_2.png"],nil];

++++NSArray+*dataStrategies+=+[NSArray+arrayWithObjects:
+++++++++++++++++++++++++++++++++++[[[DataItemStrategy+alloc]+initWithSelector:@selector(buttonAction0:)]+autorelease],
+++++++++++++++++++++++++++++++++++[[[DataItemStrategy+alloc]+initWithSelector:@selector(buttonAction1:)]+autorelease],
+++++++++++++++++++++++++++++++++++[[[DataItemStrategy+alloc]+initWithSelector:@selector(buttonAction2:)]+autorelease],+nil];

++++CGRect+buttonFrame+=+CGRectMake(0,+0,+50,+50);
++++for+(NSInteger+i+=+0;+i+<+[buttonImages+count];+i%2B%2B)
++++{
++++++++buttonFrame.origin.y+%2B=+50;
++++++++UIImage+*buttonImage+=+[buttonImages+objectAtIndex:i];
++++++++DataItemStrategy+*dataStrategie+=+[dataStrategies+objectAtIndex:i];
++++++++NSString+*title+=+[NSString+stringWithFormat:@"%25d",+i];
++++++++UIButton+*button+=+[self+buttonWithFrame:buttonFrame+image:buttonImage+action:dataStrategie.someSelector+title:title];
++++++++[self.view+addSubview:button];
++++}++++
}

-(UIButton+*)buttonWithFrame:(CGRect)buttonFrame+image:(UIImage+*)buttonImage+action:(SEL)buttonAction+title:(NSString+*)title
{
++++UIButton+*button+=+[UIButton+buttonWithType:UIButtonTypeCustom];
++++button.frame+=+buttonFrame;
++++[button+setTitle:title+forState:UIControlStateNormal];
++++[button+setTitleColor:[UIColor+blackColor]+forState:UIControlStateNormal];
++++button.titleLabel.font+=+[button.titleLabel.font+fontWithSize:50];

++++[button+setImage:buttonImage+forState:UIControlStateNormal];
++++[button+addTarget:self+action:buttonAction+forControlEvents:UIControlEventTouchUpInside];
++++return+button;
}|code-block|syntax|javascript|1208648|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|$]]

To create buttons programmatically using array of selectors you can use this snippet of code:

//define Strategy

<pre><code>@interface DataItemStrategy : NSObject
@property(nonatomic, assign) SEL someSelector;
@end

@implementation DataItemStrategy

@synthesize someSelector = _someSelector;

-(id)initWithSelector:(SEL)someSelector
{
 self = [super init];
 if (self)
 {
 self.someSelector = someSelector;
 }
 return self;
}

@end


-(void)createButtons
{
 NSArray *buttonImages =[NSArray arrayWithObjects:[UIImage imageNamed:@"Cover_0.png"],
 [UIImage imageNamed:@"Cover_1.png"],
 [UIImage imageNamed:@"Cover_2.png"],nil];

 NSArray *dataStrategies = [NSArray arrayWithObjects:
 [[[DataItemStrategy alloc] initWithSelector:@selector(buttonAction0:)] autorelease],
 [[[DataItemStrategy alloc] initWithSelector:@selector(buttonAction1:)] autorelease],
 [[[DataItemStrategy alloc] initWithSelector:@selector(buttonAction2:)] autorelease], nil];

 CGRect buttonFrame = CGRectMake(0, 0, 50, 50);
 for (NSInteger i = 0; i &lt; [buttonImages count]; i++)
 {
 buttonFrame.origin.y += 50;
 UIImage *buttonImage = [buttonImages objectAtIndex:i];
 DataItemStrategy *dataStrategie = [dataStrategies objectAtIndex:i];
 NSString *title = [NSString stringWithFormat:@"%d", i];
 UIButton *button = [self buttonWithFrame:buttonFrame image:buttonImage action:dataStrategie.someSelector title:title];
 [self.view addSubview:button];
 } 
}

-(UIButton *)buttonWithFrame:(CGRect)buttonFrame image:(UIImage *)buttonImage action:(SEL)buttonAction title:(NSString *)title
{
 UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
 button.frame = buttonFrame;
 [button setTitle:title forState:UIControlStateNormal];
 [button setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
 button.titleLabel.font = [button.titleLabel.font fontWithSize:50];

 [button setImage:buttonImage forState:UIControlStateNormal];
 [button addTarget:self action:buttonAction forControlEvents:UIControlEventTouchUpInside];
 return button;
}
</code></pre>

Here is my piece of code that creates buttons programmatically:

<pre><code>NSArray *buttonImage=[NSArray arrayWithObjects:[UIImage imageNamed:@"Cover_0.png"],
 [UIImage imageNamed:@"Cover_1.png"],
 [UIImage imageNamed:@"Cover_2.png"],
 [UIImage imageNamed:@"Cover_3.png"],
 [UIImage imageNamed:@"Cover_4.png"],
 [UIImage imageNamed:@"Cover_5.png"],
 [UIImage imageNamed:@"Cover_6.png"],
 [UIImage imageNamed:@"Cover_7.png"],nil];

UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
button.frame = CGRectMake(0, 0, 200.0f, 200.0f);
[button setTitle:[NSString stringWithFormat:@"%i", index] forState:UIControlStateNormal];
[button setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
button.titleLabel.font = [button.titleLabel.font fontWithSize:50];

[button setImage:buttonImage forState:UIControlStateNormal];
[button addTarget:self action:@selector(buttonTapped:) forControlEvents:UIControlEventTouchUpInside];
return button;
</code></pre>

But while running it I can't get in simulator and its throwing a Signal Sigabart error.
Can anyone help?

How to Set individual background image for group of UIButtons by programmatically

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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下面是我以编程方式创建按钮的一段代码：NSArray *buttonImage=[NSArray arrayWithObjects:[UIImage imageNamed:@"Cover_0.png"],                      [UIImage imageNamed:@"Cover_1.png"],...

问如何通过编程为一组UIButtons设置单独背景图像
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问如何通过编程为一组UIButtons设置单独背景图像EN