UIView Gradient using CAGradientLayer always blue

Question

I am trying to create a UIView with a dark gray gradient:

UIView *sectionSpacer = [[UIView alloc] init];
sectionSpacer.backgroundColor = [UIColor clearColor];
CAGradientLayer *gradient = [CAGradientLayer layer];
gradient.frame = sectionSpacer.bounds;
gradient.colors = [NSArray arrayWithObjects:(id)[RGB(80, 83, 88) CGColor], (id)[RGB(69, 71, 73) CGColor], nil];
[sectionSpacer.layer addSublayer:gradient];

For some reason the gradient view is always blue even thought the RGB values are dark grays. Why is this?

Answer 1

If you just init the view without a frame, it'll default to CGRectZero, so your layer will also have 0 width and height, which is why you don't see it (the gradient you do see looks like a standard UITableView header that may come from elsewhere, I doubt that it is even the same view you're initializing in the code you've shown).