+ (UIImage *)createImageWithColor:(UIColor *)color

{

   CGRect rect = CGRectMake(0.0f,0.0f, 1.0f,1.0f);

    UIGraphicsBeginImageContext(rect.size);

    CGContextRef context =UIGraphicsGetCurrentContext();

    CGContextSetFillColorWithColor(context, [colorCGColor]);

   CGContextFillRect(context, rect);

    UIImage *image =UIGraphicsGetImageFromCurrentImageContext();

    UIGraphicsEndImageContext();

   return image;

}

UIColor转化为UIImage