CODEWITHSUNDEEP
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Islam Nurdin Uulu
Islam Nurdin Uulu

Reputation: 23

How to detect if user STOPPED shaking the phone in Swift

I want to know when the user stopped shaking and when he does, I would like to dismiss the alertViewController. Any help will be appreciated. Thanks.

I've tried both using methods motionEnded and motionBegan.

Here is my code. I want to dismiss the alertViewController when the user stops shaking the phone.

       let alertController = UIAlertController(title: nil, message:
        "Shaking", preferredStyle: UIAlertController.Style.alert)

    override func motionBegan(_ motion: UIEvent.EventSubtype, with event: UIEvent?) {
        if motion == .motionShake {
            self.present(alertController, animated: true, completion: nil)

        }
    }

    override func motionEnded(_ motion: UIEvent.EventSubtype, with event: UIEvent?) {
        if alertController.isBeingPresented {
            alertController.dismiss(animated: true, completion: nil)
        }
    }

Upvotes: 1

Views: 249

Answers (1)

AtulParmar
AtulParmar

Reputation: 4570

Use the following method for ended motion, See this post for more info https://developer.apple.com/documentation/uikit/uiresponder/1621090-motionended

declare alertController outside of delegate method.

let alertController = UIAlertController(title: nil, message:
    "Shaking", preferredStyle: UIAlertController.Style.alert)

override func motionBegan(_ motion: UIEvent.EventSubtype, with event: UIEvent?) {
    if motion == .motionShake && !alertController.isBeingPresented {
        self.present(alertController, animated: true, completion: nil)

    }
}

override func motionEnded(_ motion: UIEvent.EventSubtype, with event: UIEvent?) {
    if motion == .motionShake {
         alertController.dismiss(animated: true, completion: nil)
    }
}

Upvotes: 1

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