Swift draws shadows into a UIBezier path

let borderLine = UIBezierPath()
 borderLine.moveToPoint(CGPoint(x:0, y: y!-1)) 
 borderLine.addLineToPoint(CGPoint(x: x!, y: y!-1))
 borderLine.lineWidth = 2
 UIColor.blackColor().setStroke()
 borderLine .stroke()

 let shadowLayer = CAShapeLayer()
 shadowLayer.shadowOpacity = 1
 shadowLayer.shadowOffset = CGSize(width: 0,height: 1)
 shadowLayer .shadowColor = UIColor.redColor().CGColor
 shadowLayer.shadowRadius = 1
 shadowLayer.masksToBounds = false
 shadowLayer.shadowPath = borderLine.CGPath

 self.layer .addSublayer(shadowLayer)

//// General Declarations
let context = UIGraphicsGetCurrentContext()


//// Shadow Declarations< br />let shadow = UIColor.blackColor()
let shadowOffset = CGSizeMake(3.1, 3.1)
let shadowBlurRadius: CGFloat = 5

//// Bezier 2 Drawing< br />var bezier2Path = UIBezierPath()
bezier2Path.moveToPoint(CGPointMake(30.5, 90.5))
bezier2Path.addLineToPoint(CGPointMake(115.5, 90.5))
CGContextSaveGState(context)
CGContextSetShadowWithColor(context, shadowOffset, shadowBlurRadius, (shadow as UIColor).CGColor)
UIColor.blackColor().setStroke()
bezier2Path.lineWidth = 1
bezier2Path.stroke()
CGContextRestoreGState(context)

I have a weird question. Although I did read a lot of tutorials on how to do this, the final result only showed Bei Celerian lines, not any shadows. My code is very simple:

let borderLine = UIBezierPath()
 borderLine.moveToPoint(CGPoint (x:0, y: y!-1))
 borderLine.addLineToPoint(CGPoint(x: x!, y: y!-1))
 borderLine.lineWidth = 2
 UIColor .blackColor().setStroke()
 borderLine.stroke()

 let shadowLayer = CAShapeLayer()
 shadowLayer.shadowOpacity = 1
 shadowLayer.shadowOffset = CGSize( width: 0,height: 1)
 shadowLayer.shadowColor = UIColor.redColor().CGColor
 shadowLayer.shadowRadius = 1
 shadowLayer.masksToBounds = false
 shadowLayer.shadowPath = borderLine .CGPath

 self.layer.addSublayer(shadowLayer)

I did something wrong because I didn’t seem to see any errors but of course I was wrong because no shadow appeared. The function is drawRect, the basic UIVIew has nothing extra, x and y are the width and height of the frame. Thank you in advance!

I got this example directly from my PaintCode application. Hope this helps.

//// General Declarations
let context = UIGraphicsGetCurrentContext()


//// Shadow Declarations
let shadow = UIColor.blackColor()< br />let shadowOffset = CGSizeMake(3.1, 3.1)
let shadowBlurRadius: CGFloat = 5

//// Bezier 2 Drawing
var bezier2Path = UIBezierPath()
bezier2Path.moveToPoint(CGPointMake(30.5, 90.5))
bezier2Path.addLineToPoint(CGPointMake(115.5, 90.5))
CGContextSaveGState(context)
CGContextSetShadowWithColor(context, shadowOffset, shadowBlurRadius, (shadow as UIColor).CGColor)
UIColor.blackColor().setStroke()
bezier2Path.lineWidth = 1
bezier2Path.stroke()
CGContextRestoreGState(context)