An easy way to draw a circle is to create a CAShapeLayer and add a UIBezierPath. objective-c CAShapeLayer *circleLayer = [CAShapeLayer layer]; [circleLayer setPath:[[UIBezierPath bezierPathWithOvalInRect:CGRectMake(50, 50, 100, 100)] CGPath]]; swift let circleLayer = CAShapeLayer(); circleLayer.path = UIBezierPath(ovalIn: CGRect(x: 50, y: 50, width: 100, height: 100)).cgPath; After creating the CAShapeLayer we set its path to be … Read more
You could use the path of your shape to create a masking layer and apply that on the gradient layer, like this: UIView *v = [[UIView alloc] initWithFrame:self.window.frame]; CAShapeLayer *gradientMask = [CAShapeLayer layer]; gradientMask.fillColor = [[UIColor clearColor] CGColor]; gradientMask.strokeColor = [[UIColor blackColor] CGColor]; gradientMask.lineWidth = 4; gradientMask.frame = CGRectMake(0, 0, v.bounds.size.width, v.bounds.size.height); CGMutablePathRef t = … Read more
I know this is an old question but I can provide you a solution which appears similar to Mr Lockwoods approach. Sadly the source code here is swift so you will need to convert it to ObjC. As mentioned before if the layer is a backing layer for a view you can intercept the CAAction’s … Read more
Who knew there are so many ways to draw a circle? TL;DR: If you want to use CAShapeLayer and still get smooth circles, you’ll need to use shouldRasterize and rasterizationScale carefully. Original Here’s your original CAShapeLayer and a diff from the drawRect version. I made a screenshot off my iPad Mini with Retina Display, then … Read more