Drawing Multiple Smooth Lines for iOS

- Write codes for drawing multiple smooth lines with fine curve for iOS with the help of UIBezierPath and CAShapeLayer in Swift. - We need all codes in one page with readable functions. - We can ask you to simplify your code if we needed. - Example is Evernote on Appstore. We are impressed with their drawing feature we want like that or more improved version. We need auto detection of basic shapes like circle, square, rectangle and triangle.