Detect shake gesture IOS Swift

Question

I\'m developing a app with a gesture system, basically if I turn the iPhone to left my app will do a function, if I turn the iPhone to Right, other function, with others ges

Answer 1

Swift 4, 5
iOS 10+

UIApplication, UIViewController, UIView, and UIWindow are all UIResponder objects by default which means they can all handle motion events, like shake, without any special configuration. Therefore, simply override the appropriate motion method:

class YourViewController: UIViewController {
    override func motionEnded(_ motion: UIEvent.EventSubtype, with event: UIEvent?) {
        if motion == .motionShake {
            print("device did shake")
        }
    }
}

Additionally, you can override motionBegan(_:with:) and motionCancelled(_:with:). And unlike overriding certain touch events, there is no need to call super.

Answer 2

Swift 5

Just add following methods to ViewController and execute the code

override func becomeFirstResponder() -> Bool {
    return true
}

override func motionEnded(_ motion: UIEvent.EventSubtype, with event: UIEvent?){
    if motion == .motionShake {
        print("Shake Gesture Detected")
        //show some alert here
    }
}