An Objective-C method to create a random color.

gistfile1.m

- (UIColor *)randomColor
{

    CGFloat red = ((arc4random() % 100) / 100.0);
    CGFloat green = ((arc4random() % 100) / 100.0);
    CGFloat blue = ((arc4random() % 100) / 100.0);

    return [UIColor colorWithRed:red green:green blue:blue alpha:1.0];

}