Swift detect touch anywhere on the screen

Question

I know you can detect touches using touchesBegan, touchesEnded, etc. These all work. The only thing is that they only detect the touches on the view itself, not on anything on t

Answer 1

You can add this to your AppDelegate:

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
        let tapGesture = UITapGestureRecognizer(target: self, action: nil)
        tapGesture.delegate = self
        window?.addGestureRecognizer(tapGesture)

        return true
}

func gestureRecognizer(gestureRecognizer: UIGestureRecognizer, shouldReceiveTouch touch: UITouch) -> Bool {
        // User tapped on screen, do whatever you want to do here.

        return false
}

And also make your AppDelegate conform to UIGestureRecognizerDelegate protocol.