I have two UIColor instances and want to use them creating a gradient. The code works, but it gives me a warning when I call the arrayWithObject:
constructor:
warning: Semantic Issue: Incompatible pointer types sending 'CGColorRef' (aka 'struct CGColor *') to parameter of type 'id'
I suspect there lurks other issues related to the warning (leaks for instance). Here is the snippet:
UIColor *startColor, *endColor;
// ...
NSArray *colors = [NSArray arrayWithObjects:
startColor.CGColor, endColor.CGColor, nil];
CGGradientRef gradient = CGGradientCreateWithColors(colorSpace,
(CFArrayRef) colors, NULL);
How can I rewrite the code to get rid of this warning in a safe way ?
CGFloat components[]
Try this
UIColor *startColor, *endColor;
// ...
NSArray *colors = [NSArray arrayWithObjects:
(id)startColor.CGColor, (id)endColor.CGColor, nil];
CGGradientRef gradient = CGGradientCreateWithColors(colorSpace,
(CFArrayRef) colors, NULL);
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.