UIColor转化为UIImage

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

{

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

UIGraphicsBeginImageContext(rect.size);

CGContextRef context =
UIGraphicsGetCurrentContext();

CGContextSetFillColorWithColor(context, [color
CGColor]);

CGContextFillRect(context, rect);

UIImage *image =
UIGraphicsGetImageFromCurrentImageContext();

UIGraphicsEndImageContext();

return image;

}