Handle Shake Gesture (Motion) in Xamarin.Forms

Hi,

I need to handle shake motion in xamarin.forms app. To send event notification I will use MessagingCenter, but I need a way to hook up my forms appdelegate (Xamarin.Forms.Platform.iOS.FormsApplicationDelegate) to motion events. I read: https://forums.xamarin.com/discussion/2135/handle-shake-gesture but this is not Xamarin.Forms example.

Thanks in advance.