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iphoneobjective-cuicolorgraphic

How do I get the value (float) for RG & B of a UIColor object?

I have created a UIColor object and want to set the colors before drawing using CGContextSetRGBStrokeColor. In order to do that I need to extract the values of red, green and blue from the UIColor object. How do I do that?

Or is there perhaps a better way defining the color using some other kind of methods (couldn't find when I looked for it though) in which I can use the UIColor object to set the color?

Thanks in advance!

/Niklas

Solution

  • You don't need the RGB components in your case. Just use CGContextSetStrokeColorWithColor instead of CGContextSetRGBStrokeColor.

    CGContextSetStrokeColorWithColor(context, thatUIColor.CGColor);

    (To get the RGB components, see How to get RGB values from UIColor?.)