Custom UIBarButtonItem for UINavigationBar or UIToolbar

UIBarButtonItem+CustomBarButton.h

@implementation UIBarButtonItem (CustomBarButton)
+ (UIBarButtonItem*)barItemWithTitle:(NSString *)title backgroundImage:(UIImage *)image target:(id)target action:(SEL)action
{       
    UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
    [button setBackgroundImage:[image stretchableImageWithLeftCapWidth:8 topCapHeight:0] forState:UIControlStateNormal];
    [button setTitle:title forState:UIControlStateNormal];
    UIFont *font = [UIFont fontWithName:@"Helvetica-Bold" size:12];
    [button.titleLabel setFont:font];  
    [button.titleLabel setShadowColor:[UIColor whiteColor]];
    [button.titleLabel setShadowOffset:CGSizeMake(0, 1)];
    CGSize size = [button.titleLabel.text sizeWithFont:font];
    float titleWidth = size.width;
    //Add 15 to the width for a left-right buffer
    [button setFrame:CGRectMake(0.0, 0.0, titleWidth+15, image.size.height)];
    [button addTarget:target action:action forControlEvents:UIControlEventTouchUpInside];
        
    return [[[UIBarButtonItem alloc] initWithCustomView:button] autorelease];
}

+ (UIBarButtonItem*)barItemWithTitle:(NSString *)title target:(id)target action:(SEL)action
{       
    return [UIBarButtonItem barItemWithTitle:title backgroundImage:[UIImage imageNamed:@"button_CustomBarButton"] target:target action:action];
}

@end