Fast UISegmentedControl appearance customization.

UISegmentedControl+Background.h

//
//  UISegmentedControl+Background.h
//
//  Created by Maksym Huk on 4/3/13.
//  Copyright (c) 2013 Maksym Huk. All rights reserved.
//

#import <UIKit/UIKit.h>

@interface UISegmentedControl (Background)

- (void)setBackgroundImage:(UIImage *)backgroundImage highlightedBackgroundImage:(UIImage *)highlightedBackgroundImage dividerImage:(UIImage *)dividerImage;

@end

UISegmentedControl+Background.m

//
//  UISegmentedControl+Background.m
//
//  Created by Maksym Huk on 4/3/13.
//  Copyright (c) 2013 Maksym Huk. All rights reserved.
//

#import "UISegmentedControl+Background.h"

@implementation UISegmentedControl (Background)

- (void)setBackgroundImage:(UIImage *)backgroundImage highlightedBackgroundImage:(UIImage *)highlightedBackgroundImage dividerImage:(UIImage *)dividerImage
{    
    CGRect frame = self.frame;
    self.frame = CGRectMake(frame.origin.x, frame.origin.y, frame.size.width, backgroundImage.size.height);
    
    [self setBackgroundImage:backgroundImage forState:UIControlStateDisabled barMetrics:UIBarMetricsDefault];
    [self setBackgroundImage:backgroundImage forState:UIControlStateNormal barMetrics:UIBarMetricsDefault];
    [self setBackgroundImage:highlightedBackgroundImage forState:UIControlStateSelected barMetrics:UIBarMetricsDefault];
    [self setBackgroundImage:highlightedBackgroundImage forState:UIControlStateHighlighted barMetrics:UIBarMetricsDefault];
    
    [self setDividerImage:dividerImage forLeftSegmentState:UIControlStateNormal rightSegmentState:UIControlStateSelected barMetrics:UIBarMetricsDefault];
    [self setDividerImage:dividerImage forLeftSegmentState:UIControlStateSelected rightSegmentState:UIControlStateNormal barMetrics:UIBarMetricsDefault];
    [self setDividerImage:dividerImage forLeftSegmentState:UIControlStateNormal rightSegmentState:UIControlStateNormal barMetrics:UIBarMetricsDefault];
}

@end