ios - passing argument 1 of 'setBackgroundColor:' from incompatible pointer type -

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- (void)drawrect:(cgrect)rect {     // drawing code.      // backgroundcolor     calayer *mylayer = [self layer];         [mylayer setbackgroundcolor:[uicolor colorwithred:0 green:0 blue:0 alpha:0.5].cgcolor];     ... }

when want setbackgroundcolor layer, warning occurred. code runs ok.

===========================================================

the best answer : #import <quartzcore/quartzcore.h>

if don't include quartz in module compiler not know cgcolor type , issues warning.

put #import <quartzcore/quartzcore.h> in header , should remove warning.

hope helps,

dave


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