How to reference BezierPath in a UIView - ios

Question

I am trying to detect Taps inside BezierPaths in a UIView and have found many references to the containsPoint method. However I cannot seem to find how to actually reference the BezierPaths from my ViewController.
I have set up:
class func drawSA(frame targetFrame: CGRect = CGRect(x: 0, y: 0, width: 69, height: 107), resizing: ResizingBehavior = .aspectFit, SACountries: [String: ViewController.CountryStruct])
{
let myPath = UIBezierPath()
myPath.move(to: CGPoint(x: 32.24, y: 8.61))
myPath.addLine(to: CGPoint(x: 31.99, y: 8.29))
myPath.addLine(to: CGPoint(x: 31.78, y: 8.19))
myPath.close()
}
The Beziers are drawn in this function, called by:
override func draw(_ rect: CGRect)
In the main ViewController, I have the following function for detecting a Tap on the UIView:
#objc func SATap(sender: UITapGestureRecognizer)
{
let location = sender.location(in: self.SAView)
// how do I call containsPoint from here?
}
How do I call containsPoint from here?
The bezierPaths are drawn correctly at runtime.

Answer 1

As the Paths are created in a Class Function within a separate Class, I cannot save them to the View directly.
I solved this by putting the UIBezierPaths into a Dictionary and then return the Dictionary. An Array would work too, but this way I can access specific Paths easily.
class func drawSA(frame targetFrame: CGRect = CGRect(x: 0, y: 0, width: 71, height: 120), resizing: ResizingBehavior = .aspectFit, SACountries: [String: ViewController.CountryStruct]) -> ([String: UIBezierPath])
{
var Paths = [String: UIBezierPath]()
let myPath = UIBezierPath()
myPath.move(to: CGPoint(x: 32.24, y: 8.61))
myPath.addLine(to: CGPoint(x: 31.99, y: 8.29))
myPath.addLine(to: CGPoint(x: 31.78, y: 8.19))
myPath.close()
Paths["mP"] = myPath
let myPath2 = UIBezierPath()
myPath2.move(to: CGPoint(x: 32.24, y: 8.61))
myPath2.addLine(to: CGPoint(x: 31.99, y: 8.29))
myPath2.addLine(to: CGPoint(x: 31.78, y: 8.19))
myPath2.close()
Paths["mP2"] = myPath2
return Paths
}
I then used View.addLayer to create Layers in the View and added the Layer.name property to each Layer when creating them with a For In Loop on the Dictionary:
for path in Paths.keys.sorted()
{
self.layer.addSublayer(CreateLayer(path)) // The Function simply creates a CAShapeLayer
}
I then used the Dictionary in the Gesture Function:
#objc func ATap(sender: UITapGestureRecognizer)
{
let location = sender.location(in: self.SAView)
// You need to Scale Location if your CAShapeLayers are Scaled
for path in SAView.Paths
{
let value = path.value
value.contains(location)
if value.contains(location)
{
for (index, layer) in SAView.layer.sublayers!.enumerated()
{
if layer.name == path.key
{
// Do something when specific layer is Tapped
}
}
}
}
}
There may well be better ways of doing this, but it's all working and performs well.