Check user settings for push notification in Swift

Question

I have push notifications in my app. Whenever the app is launched, I would like to check whether the user has enabled push notification for my application.

I do it this

Answer 1

Swift 4 version of salabaha's answer

extension UIApplication {
    class func openAppSettings() {
        UIApplication.shared.open(URL(string: UIApplicationOpenSettingsURLString)!, options: [:], completionHandler: {enabled in
            // ... handle if enabled
        })
}