Swift and swiftcode

Swift and swiftcode

Lossless Swift-UIView

 

Effect

 

Source code

/// UIView + ScreensShot. swift // Swift-Animations // Created by YouXianMing on 16/9/5. // Copyright©2016 YouXianMing. all rights reserved. // import UIKitextension UIView {/** Get the view's screen shot, this function may be called from any thread of your app. -returns: The screen shot's image. */func screenShot ()-> UIImage? {Guard frame. size. height> 0 & frame. size. width> 0 else {return nil} uigraphicsbeginimagecontextwitexceptions (frame. size, false, 0) layer. renderInContext (UIGraphicsGetCurrentContext ()!) Let image = UIGraphicsGetImageFromCurrentImageContext () UIGraphicsEndImageContext () return image }}

 

Use

/// ViewController. swift // ScreenShot /// Created by YouXianMing on 16/9/5. // Copyright©2016 YouXianMing. all rights reserved. // import UIKitclass ViewController: UIViewController {override func viewDidLoad () {super. viewDidLoad () let redView = UIView (frame: CGRectMake (40, 40,200,200) redView. backgroundColor = UIColor. redColor (). colorWithAlphaComponent (0.5) view. addSubview (redView) let imageView = UIImageView (image: redView. screenShot () view. addSubview (imageView )}}