[xamarin form] MessagingCenter > APP Dev

MessagingCenter.Subscribe<string>(this, "DisableGesture", (sender) =>
            {
                if(sender == "0")
                {
                    IsGestureEnabled = false;
                }
                else
                {
                    IsGestureEnabled = true;
                }
            });

MessagingCenter.Send<string>("0", "DisableGesture");

MessagingCenter.Send<string>("1", "DisableGesture");