在ios 7中更改UIBarButtonItem的背景色

使用故事板或XIB,您可以将UIButton直接添加到导航栏并更改UIButton背景色。

使用 appearance 代理此,

使用您喜欢的颜色创建1x1像素图像。在本例中,此图像的名称为“icons_gb.png” AppDelegate.m 。图像颜色将在按钮的背景中重复。

UIImage *btnBg = [[UIImage imageNamed:@"icons_bg"] resizableImageWithCapInsets:UIEdgeInsetsMake(0, 0, 0, 0)];

[[UIBarButtonItem appearance] setBackgroundImage:btnBg 
                                        forState:UIControlStateNormal
                                      barMetrics:UIBarMetricsDefault];

您可以通过以下方式进行更改:

yourNavigationBar.barTintColor = [UIColor yellowColor];

导航栏的颜色也可以更改。

如果您只想更改UIBarButtonItem,请使用我的自定义类:

UIBarButtonItem+自定义.h

#import <UIKit/UIKit.h>

@interface UIBarButtonItem (Custom)
+ (UIBarButtonItem *) barItemWithImage:(UIImage *)img size:(CGSize)size target:(id)target action:(SEL)selector;
@end

UIBarButtonItem+自定义.m

#import "UIBarButtonItem+Custom.h"

@implementation UIBarButtonItem (Custom)
+ (UIBarButtonItem *) barItemWithImage:(UIImage *)img size:(CGSize)size target:(id)target action:(SEL)selector
{
    UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];

    [button setImage:img forState:UIControlStateNormal];

    button.frame= CGRectMake(0.0, 0.0, size.width, size.height);

    [button addTarget:target action:selector forControlEvents:UIControlEventTouchUpInside];

    UIBarButtonItem *forward = [[[UIBarButtonItem alloc] initWithCustomView:button] autorelease];

    return forward;
}
@end