Detect shake gesture IOS Swift

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Swift3 ios10:

override func viewDidLoad() {
    super.viewDidLoad()
    self.becomeFirstResponder() // To get shake gesture
}

// We are willing to become first responder to get shake motion
override var canBecomeFirstResponder: Bool {
    get {
        return true
    }
}

// Enable detection of shake motion
override func motionEnded(_ motion: UIEvent.EventSubtype, with event: UIEvent?) {
    if motion == .motionShake {
        print("Why are you shaking me?")
    }
}

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