はてなブックマーク

func viewHamon(size: CGFloat) -> UIImage{ UIGraphicsBeginImageContext(CGRectMake(100, 100, size, size).size); let context: CGContextRef = UIGraphicsGetCurrentContext()! CGContextSaveGState(context) CGContextSetFillColorWithColor(context, UIColor.clearColor().CGColor) CGContextFillRect(context, self.view.frame) let x = CGFloat(size/2) let y = CGFloat(size/2) let r = CGFloat((size/2)-10) let path :