How to use the Zposition of UIBezierPath() and SKNode? - swift

Question

I have a UIView where i draw lines with UIBezierPath() and where i have SKSHapeNode child. Sometimes, the drawing is superimposed with the nodes. When it is the case, i want the node to be upside of the drawing. But even wehn the nodes have a bigger Zpos, the drawing is upside nodes.
I use this script when i want to draw a line :
private func addLine(fromPoint start: CGPoint, toPoint end:CGPoint) {
let line = CAShapeLayer()
let linePath = UIBezierPath()
linePath.move(to: start)
linePath.addLine(to: end)
line.zPosition = 80
line.path = linePath.cgPath
line.strokeColor = UIColor.black.cgColor
line.lineWidth = 5.0
line.lineJoin = CAShapeLayerLineJoin.round
self.view!.layer.addSublayer(line)
}
And i use this script for the SKSHapeNodes :
private func drawBase(map : Int) {
for i in 0...maps.xMaps[map].count - 1 {
let team = maps.mapTeam[map][i]
let weight = CGFloat(game!.baseWeight[i])
let base = SKShapeNode(rectOf: CGSize(width: weight, height: weight))
base.zPosition = 90
base.position = CGPoint(x: maps.xMaps[map][i], y: maps.yMaps[map][i])
if team == 0 {
base.fillColor = .blue
} else if team == 1 {
base.fillColor = .red
} else if team == 2 {
base.fillColor = .green
} else if team == 3 {
base.fillColor = .purple
}
mapEntity.append(base)
self.addChild(base)
}
}
I call the function here :
func drawMap(map : Int){
drawRoad(map: map)
drawBase(map: map)
}
DrawRoad is the function that draw lines :
private func drawRoad(map : Int) {
for i in 0...maps.xRoad[map].count - 1 {
let start = CGPoint(x: maps.xRoad[map][i][0], y: self.frame.height - maps.yRoad[map][i][0])
let end = CGPoint(x: maps.xRoad[map][i][1], y: self.frame.height - maps.yRoad[map][i][1])
addLine(fromPoint: start, toPoint: end)
}
}
As you can see i draw the line before adding the SKShapeNode but it do not work...