How to initialize UIBezierPath to draw a circle in swift?

Question

I'm trying to draw a circle in Swift, but when I write my code I get a error "could not find an overload for 'init' that accepts the supplied arguments.

In the class UIBezierPath there is a init function:

 init(arcCenter center: CGPoint, radius: CGFloat, startAngle: CGFloat, endAngle: CGFloat, clockwise: Bool) -> UIBezierPath

But when I declared this with this code I get the error.. Need I cast any variable to other type? but if I compiled this in iphone 4 I don't get the error, only in iphone 5/5s. How can declare this correctly?

  let arcCenter   = CGPoint(x: CGRectGetMidX(self.bounds), y: CGRectGetMidY(self.bounds))
    let radius      = Float(min(CGRectGetMidX(self.bounds) - 1, CGRectGetMidY(self.bounds)-1))

    let circlePath : UIBezierPath = UIBezierPath(arcCenter: arcCenter, radius: radius, startAngle: -rad(90), endAngle: rad(360-90), clockwise: true)

Thanks!

Answer 1

You need to convert values that are passed as arguments in UIBezierPath 's init method to CGFloat, because Swift sees them as Double or Float (let radius).

 let circlePath : UIBezierPath = UIBezierPath(arcCenter: arcCenter, radius: 
CGFloat(radius), startAngle: CGFloat(-rad(90)), endAngle: CGFloat(rad(360-90)), clockwise: true)