BuildIt.MvvmCross.UI.Views.BaseStateEnabledPage.OnNavigatedFrom C# (CSharp) Method

        protected override void OnNavigatedFrom(NavigationEventArgs e)
        {
            try
            {
#if WINDOWS_PHONE_APP
                HardwareButtons.BackPressed -= HardwareButtons_BackPressed;

#elif WINDOWS_UWP
                if (Windows.Foundation.Metadata.ApiInformation.IsTypePresent("Windows.Phone.UI.Input.HardwareButtons"))
                {
                    Windows.Phone.UI.Input.HardwareButtons.BackPressed -= HardwareButtons_BackPressed;
                }
                if (CanSubscribeToBackRequest)
                {
                    UnsubscribeFromBackRequestedEvent();
                }
#endif
                if (GoBackViewModel != null)
                {
                    GoBackViewModel.ClearPreviousViews -= ClearViews;
                }

                var satvm = StatesAndTransitionsViewModel;
                if (satvm != null)
                {
                    satvm.StateChanged -= ViewModelStateChanged;
                    satvm.RunStoryboard -= RunStoryboard;
                    satvm.StopStoryboard -= StopStoryboard;
                    //EventsWired = false;
                }

                base.OnNavigatedFrom(e);
#if WINDOWS_UWP
                if (EnablePageCaching)
                {
                    if (e.NavigationMode == NavigationMode.Back)
                    {
                        NavigationCacheMode = NavigationCacheMode.Disabled;
                    }
                }

#endif
            }
            catch (Exception exception)
            {
                Debug.WriteLine(exception.Message);
            }

        }