Not that I am going forward with this, but this seems to determine if the
color is b/w/gray or color:
-(void) buttonClicked:(id)sender {
UIButton *resultButton = (UIButton *)sender;
UIColor *color = [resultButton titleColorForState:UIControlStateNormal];
CGColorRef color2 = [color CGColor];
int numComponents = CGColorGetNumberOfComponents(color2);
if( numComponents == 2 ){
//gray (value of black and alpha)
} else {
//color
}
}
On Thu, Aug 5, 2010 at 1:56 PM, Nick Zitzmann <n...@chronosnet.com> wrote:
>
> On Aug 5, 2010, at 11:45 AM, Eric E. Dolecki wrote:
>
> > How can I check what the color is in order to manipulate the button after
> > it's pressed? If it's gray, do one thing, if it's another color, do
> > something else. I'm not sure how to run an if on it yet.
>
> On iOS you'd have to use the functions CGColorGetColorSpace(),
> CGColorGetNumberOfComponents(), and CGColorGetComponents() to access the
> color space and the components, but I really can't recommend branching on
> color information, because color components are floating point numbers
> rather than integers.
>
> Nick Zitzmann
> <http://www.chronosnet.com/>
>
>
--
Interactive Designer and Developer
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