A CALayer implementation of angle gradient for ios
AngleGradientLayer
This library is deprecated in favor of iOS 12 CAGradientLayer layer type .conic
See ConicSample project for CAGradientLayer examples ported from AngleGradientLayer.
AngleGradientLayer is a CALayer implementation of angle gradient.
Installing
pod 'AngleGradientLayer', '~> 1.0'
[Swift] Using in your code
import AngleGradientLayer
class MyView: UIView {
override class func layerClass() -> AnyClass {
return AngleGradientLayer.self
}
override init(frame: CGRect) {
super.init(frame: frame)
let l: AngleGradientLayer = self.layer as! AngleGradientLayer
l.colors = [
UIColor(red: 0, green: 0, blue: 0.5, alpha: 1).CGColor,
UIColor(red: 1, green: 1, blue: 0.4, alpha: 1).CGColor]
}
}
[Objective-C] Using in your code
(See demo project for more.)
#import "AngleGradientLayer.h"
@interface MyView : UIView
@end
@implementation MyView
+ (Class)layerClass
{
return [AngleGradientLayer class];
}
- (id)initWithFrame:(CGRect)frame
{
if (!(self = [super initWithFrame:frame]))
return nil;
AngleGradientLayer *l = (AngleGradientLayer *)self.layer;
l.colors = [NSArray arrayWithObjects:
(id)[UIColor colorWithRed:0 green:0 blue:0.5 alpha:1].CGColor,
(id)[UIColor colorWithRed:1 green:1 blue:0.4 alpha:1].CGColor,
nil];
return self;
}
@end
Notes
When working with semi-transparent views, be sure to set backgroundColor property on the layer's view
myview.backgroundColor = UIColor.clearColor()
backgroundColor by default is nil, blending to black color.