-
-
Save igrechuhin/3dbb627e9a2c35e9a9e4 to your computer and use it in GitHub Desktop.
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Swift: | |
| extension UIWindow { | |
| func visibleViewController() -> UIViewController? { | |
| if let rootViewController: UIViewController = self.rootViewController { | |
| return UIWindow.getVisibleViewControllerFrom(rootViewController) | |
| } | |
| return nil | |
| } | |
| class func getVisibleViewControllerFrom(vc:UIViewController) -> UIViewController { | |
| if vc.isKindOfClass(UINavigationController.self) { | |
| let navigationController = vc as UINavigationController | |
| return UIWindow.getVisibleViewControllerFrom( navigationController.visibleViewController) | |
| } else if vc.isKindOfClass(UITabBarController.self) { | |
| let tabBarController = vc as UITabBarController | |
| return UIWindow.getVisibleViewControllerFrom(tabBarController.selectedViewController!) | |
| } else { | |
| if let presentedViewController = vc.presentedViewController { | |
| return UIWindow.getVisibleViewControllerFrom(presentedViewController.presentedViewController!) | |
| } else { | |
| return vc; | |
| } | |
| } | |
| } | |
| Usage: | |
| if let topController = window.visibleViewController() { | |
| println(topController) | |
| } |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment