Adds a customizable CALayer halo effect to any arbitrary UIView.
Completely written in Swift.
haloLayer = PulsingLayer(pulseColor: UIColor(white: 1.0, alpha: 1.0))
haloLayer.radius = 90.0
haloLayer.animationDuration = 1
haloLayer.pulseInterval = 0
haloView = UIView(frame: CGRectMake(65, 65, 50, 50));
haloLayer.position = CGPointMake(CGRectGetWidth(haloView.frame)/2, CGRectGetHeight(haloView.frame)/2)
haloView.layer.addSublayer(haloLayer)
Written from Scratch in Swift.
Inspired by PulsingHalo.
See LICENSE.md.