CGColor - CGColorGetComponents 似乎无法正常工作？

Question

I am trying to get the rgb values from a CGColor I use the followig code. The problem is that all returned values for red, green, and blue always return as a float and they are always between 0 and 1 for example: rgb(0.000000, 0.847059, 0.945098)

How do i convert these val;ues to real rgb values?

int numComponents = CGColorGetNumberOfComponents(color);

if (numComponents == 4)
{
        const CGFloat *components = CGColorGetComponents(color);
    CGFloat red = components[0];
    CGFloat green = components[1];
    CGFloat blue = components[2];
    CGFloat alpha = components[3];
}

Answer 1

It returns the correct rgb values represented as a percentage. So if your Red =.8 it's 80% of 255 which is 204

so your code could look like this:

int numComponents = CGColorGetNumberOfComponents(color);

if (numComponents == 4)
{
    const CGFloat *components = CGColorGetComponents(color);
    NSInteger red = (NSInteger) components[0] * 255;
    NSInteger green = (NSInteger) components[1] * 255;
    NSInteger blue = (NSInteger) components[2] * 255;
    CGFloat alpha = components[3];
}