Handy lines to set tint color of a UISlider (pre iOS5)

gistfile1.m

/* setting tint on slider */

    UIGraphicsBeginImageContextWithOptions(CGSizeMake(20, 7), NO, 1.0);
    [[UIBezierPath bezierPathWithRoundedRect:CGRectMake(1, 0, 18, 7) 
                                cornerRadius:3.0] addClip];
    [[UIColor grayColor] setFill];
    [[UIBezierPath bezierPathWithRect:CGRectMake(9, 0, 20, 7)] fill];
    [tintColor setFill];
    [[UIBezierPath bezierPathWithRect:CGRectMake(0, 0, 5+5, 7)] fill];
    UIBezierPath *path = [UIBezierPath bezierPathWithRoundedRect:CGRectMake(1, 1, 18, 7) 
                                                    cornerRadius:3.0];
    path.lineWidth = 3;
    [[UIColor blackColor] set];
    [path strokeWithBlendMode:kCGBlendModeNormal alpha:0.3];
    UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    image = [image stretchableImageWithLeftCapWidth:8 topCapHeight:4];
    [slider setMinimumTrackImage:image forState:UIControlStateNormal];
    [slider setMaximumTrackImage:image forState:UIControlStateNormal];