Waiwai is a legend

#define SliderWidth 116
#define SliderHeight 28

-------------------ScreenCapture.h-------------------

#import
@interface ScreenCapture : NSObject {

}
+(ScreenCapture*)capture;
- (UIImage *)captureView:(UIView *)view;
@end


-------------------ScreenCapture.m-------------------
#import "ScreenCapture.h"
@implementation ScreenCapture

+(ScreenCapture*)capture{
    return [[[ScreenCapture alloc] init] autorelease];
}

- (UIImage *)captureView:(UIView *)view {  
    CGRect screenRect = view.frame;
    UIGraphicsBeginImageContext(screenRect.size);
    CGContextRef ctx = UIGraphicsGetCurrentContext();
    [[UIColor whiteColor] set];
    CGContextFillRect(ctx, screenRect);
    [view.layer renderInContext:ctx];  
    UIImage *newImage = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    return newImage;
}


-------------------GlobalStyleSheet.h-------------------
#import
#import "extThree20CSSStyle/extThree20CSSStyle.h"

@interface GlobalStyleSheet : TTDefaultCSSStyleSheet {

}
@end


-------------------GlobalStyleSheet.m-------------------
#import "GlobalStyleSheet.h"
#import "Three20Style/UIColorAdditions.h"

 

-(UIImage*)slideSwitchLeftImage{
    TTView *segmentView = [[[TTView alloc] initWithFrame:CGRectMake(0, 0, SliderWidth , SliderHeight)] autorelease];
    UILabel *label = [[[UILabel alloc] initWithFrame:CGRectMake(10, 0, 80, 20)] autorelease];
    label.text = LocalizedString(@"B", @"B");
    label.textColor = [UIColor redColor];
    [segmentView addSubview:label];
    segmentView.backgroundColor = [UIColor blackColor];
    return [[[ScreenCapture capture] captureView:segmentView] stretchableImageWithLeftCapWidth:1 topCapHeight:0];
}

-(UIImage*)slideSwitchRightImage{
    TTView *segmentView = [[[TTView alloc] initWithFrame:CGRectMake(0, 0, SliderWidth  ,SliderHeight)] autorelease];
    UILabel *label = [[[UILabel alloc] initWithFrame:CGRectMake(30, 0, 80, 20)] autorelease];
    label.text = LocalizedString(@"A", @"A");
    label.textColor = [UIColor redColor];
    [segmentView addSubview:label];
    segmentView.backgroundColor = [UIColor blueColor];
    return [[[ScreenCapture capture] captureView:segmentView] stretchableImageWithLeftCapWidth:1 topCapHeight:0];
}

-(UIImage*)slideSwitchThumbImage{
    TTView *thumbView = [[[TTView alloc] initWithFrame:CGRectMake(0, 0, SliderHeight, SliderHeight)] autorelease];
    thumbView.backgroundColor = [UIColor redColor];
    return  [[ScreenCapture capture] captureView:thumbView] ;
}

@end

---------------------------------testController.m----------------------

-(void)viewDidLoad{
    [super viewDidLoad];
   
    CGRect frame = CGRectMake(10.0, 50.0, 116, 28);
    CGRect thumb = CGRectMake(0.0, 0.0, 28, 28);
    UISlider *slideSwitch = [[UISlider alloc] initWithFrame:frame];
    [slideSwitch addTarget:self action:@selector(sliderAction:) forControlEvents:UIControlEventTouchUpInside];
    slideSwitch.backgroundColor = [UIColor clearColor];
    [slideSwitch setThumbImage:TTSTYLEVAR(slideSwitchThumbImage) forState:UIControlStateNormal];
    [slideSwitch setMinimumTrackImage:TTSTYLEVAR(slideSwitchLeftImage) forState:UIControlStateNormal];
    [slideSwitch setMaximumTrackImage:TTSTYLEVAR(slideSwitchRightImage) forState:UIControlStateNormal];
    [slideSwitch thumbRectForBounds: thumb trackRect: frame value: slideSwitch.value];
    slideSwitch.minimumValue = 0.0;
    slideSwitch.maximumValue = 1.0;
    slideSwitch.continuous = YES;
    slideSwitch.value = 0.0;
    [self.view addSubview:slideSwitch];
}