UIView 颜色渐变背景

UIView+ColorGradient.mm

// UIView 颜色渐变背景

CAGradientLayer *gradient = [CAGradientLayer layer];
gradient.frame            = view.frame;
gradient.colors           = [NSArray arrayWithObjects:
                             (id)kUIColorFromRGB(0x000000, 0.8).CGColor,
                             (id)kUIColorFromRGB(0x000000, 0.5).CGColor,
                             (id)kUIColorFromRGB(0x000000, 0.3).CGColor,
                             (id)kUIColorFromRGB(0x000000, 0.2).CGColor,
                             (id)kUIColorFromRGB(0x000000, 0.005).CGColor, nil];
[view.layer insertSublayer:gradient atIndex:0];