Detecting tap inside a bezier path

Question

I have a UIView which is added as a subview to my view controller. I have drawn a bezier path on that view. My drawRect implementation is below

- (void)drawR         


        

Answer 1

A solution in Swift 3.1 (porting over the Apple recommended solution from here)

func containsPoint(_ point: CGPoint, path: UIBezierPath, inFillArea: Bool) -> Bool {

        UIGraphicsBeginImageContext(self.size)

        let context: CGContext? = UIGraphicsGetCurrentContext()
        let pathToTest = path.cgPath
        var isHit = false

        var mode: CGPathDrawingMode = CGPathDrawingMode.stroke

        if inFillArea {

            // check if UIBezierPath uses EO fill
            if path.usesEvenOddFillRule {
                mode = CGPathDrawingMode.eoFill
            } else {
                mode = CGPathDrawingMode.fill
            }
        } // else mode == stroke

        context?.saveGState()
        context?.addPath(pathToTest)

        isHit = (context?.pathContains(point, mode: mode))!
        context?.restoreGState()

        return isHit
        }