How to launch a parent iOS App from its App Extension

Question

Does any one know how to launch the parent app from the app extension\'s view controller?

I just want to launch the main app from its app extension.

Answer 1

Here is working solution (tested on iOS 9.2) at least for Keyboard Extension. This category adds special method for access to hidden sharedApplication object and then call openURL: on it. (Of course then you have to use openURL: method with your app scheme.)

extension UIInputViewController {

    func openURL(url: NSURL) -> Bool {
        do {
            let application = try self.sharedApplication()
            return application.performSelector("openURL:", withObject: url) != nil
        }
        catch {
            return false
        }
    }

    func sharedApplication() throws -> UIApplication {
        var responder: UIResponder? = self
        while responder != nil {
            if let application = responder as? UIApplication {
                return application
            }

            responder = responder?.nextResponder()
        }

        throw NSError(domain: "UIInputViewController+sharedApplication.swift", code: 1, userInfo: nil)
    }

}