private static void OnIsVideoStartedChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
        {
            MediaElementExt mediaElementExt = (MediaElementExt)d;

            if (mediaElementExt != null)
            {
                bool?newValue = (bool?)(e.NewValue as bool?);
                if ((!newValue.GetValueOrDefault() ? false : newValue.HasValue))
                {
                    MediaElementExt.SwitchStateToNonloading(mediaElementExt);
                    return;
                }
                if (mediaElementExt.NotificationContent == null)
                {
                    MediaElementExt.SwitchStateToLoading(mediaElementExt);
                }
            }
        }
        private static void OnNotificationTypeChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
        {
            MediaElementExt mediaElementExt = (MediaElementExt)d;

            mediaElementExt.OnContentChanged(e.OldValue, e.NewValue);
            if (e.NewValue == null)
            {
                MediaElementExt.SwitchStateToLoading(mediaElementExt);
                VisualStateManager.GoToState(mediaElementExt, "STATE_NotificationNonVisible", true);
                mediaElementExt.NotificationContent = null;
                return;
            }
            try
            {
                MessageType messageType = (MessageType)Enum.Parse(typeof(MessageType), e.NewValue.ToString());
                if (messageType != MessageType.AudioVideo && messageType != MessageType.HdmiConflict && messageType != MessageType.NeedRestart)
                {
                    VisualStateManager.GoToState(mediaElementExt, "STATE_NotificationVisible", true);
                    StackPanel stackPanel = new StackPanel();
                    TextBlock  textBlock  = new TextBlock();
                    Image      image      = new Image();
                    if (messageType != MessageType.AudioOnly && messageType != MessageType.HdmiConflict && messageType != MessageType.NeedRestart)
                    {
                        textBlock.FontSize      = 26;
                        textBlock.Foreground    = new SolidColorBrush(Colors.White);
                        textBlock.FontWeight    = FontWeights.Bold;
                        textBlock.TextWrapping  = TextWrapping.WrapWithOverflow;
                        textBlock.TextAlignment = TextAlignment.Center;
                        stackPanel.Children.Add(textBlock);
                        if (messageType == MessageType.HdmiConflict)
                        {
                            textBlock.Text = ResourcesModel.Instanse.MAPP_SID_TV_CURRENT_STATUS_PREVENTS_SCREEN_SHARING_WINDOW;
                        }
                        else if (messageType == MessageType.AndroidPriority)
                        {
                            textBlock.Text = ResourcesModel.Instanse.MAPP_SID_TV_NO_LONGER_AVAILABLE_ANDROID_DEVICE;
                        }
                        else if (messageType == MessageType.LowPriority)
                        {
                            textBlock.Text = ResourcesModel.Instanse.MAPP_SID_YOU_CAN_NOT_WATCH_2ND_TV_ANYMORE;
                        }
                        else if (messageType == MessageType.SourceConflict || messageType == MessageType.OtherMode)
                        {
                            textBlock.Text = ResourcesModel.Instanse.MAPP_SID_CANNOT_WATCH_TV_MOBILE_DEVICE_CURRENT_TV_MODE;
                        }
                        else if (messageType == MessageType.NoSignal)
                        {
                            textBlock.Text = ResourcesModel.Instanse.COM_SID_NO_SIGNAL;
                        }
                        else if (messageType == MessageType.CheckCable)
                        {
                            textBlock.Text = ResourcesModel.Instanse.MAPP_SID_CHECK_CABLE;
                        }
                        else if (messageType == MessageType.DataService)
                        {
                            textBlock.Text = ResourcesModel.Instanse.COM_TV_SID_DATA_SERVICE_CHANNEL;
                        }
                        else if (messageType == MessageType.Locked)
                        {
                            textBlock.Text = ResourcesModel.Instanse.COM_SID_THIS_CHANNEL_LOCKED_MSG;
                        }
                        else if (messageType == MessageType.NotAvailable)
                        {
                            textBlock.Text = ResourcesModel.Instanse.COM_SID_NOT_AVAILABLE;
                        }
                        else if (messageType == MessageType.NotAvailable3D)
                        {
                            textBlock.Text = ResourcesModel.Instanse.COM_TV_SID_3D_IS_NOT_SUPPORTED;
                        }
                        else if (messageType == MessageType.NotConnected)
                        {
                            textBlock.Text = ResourcesModel.Instanse.MAPP_SID_NOT_CONNECTED;
                        }
                        else if (messageType == MessageType.ParentalLock)
                        {
                            textBlock.Text = ResourcesModel.Instanse.MAPP_SID_PARENTAL_LOCK;
                        }
                        else if (messageType == MessageType.ScrambledChannel)
                        {
                            textBlock.Text = ResourcesModel.Instanse.MAPP_SID_SCRAMLED_CHANNEL;
                        }
                        else if (messageType == MessageType.ServiceNotAvailable)
                        {
                            textBlock.Text = ResourcesModel.Instanse.COM_TV_SID_THIS_SERVICE_IS_NOT_AVAILABLE;
                        }
                        else if (messageType == MessageType.Recording)
                        {
                            textBlock.Text = ResourcesModel.Instanse.MAPP_SID_NOT_AVAILABLE_TV_RECORIDNG;
                        }
                        else if (messageType != MessageType.NeedRestart)
                        {
                            textBlock.Text = "Some error.:'(";
                        }
                        else
                        {
                            textBlock.Text = ResourcesModel.Instanse.COM_TV_SID_CLOSING_MULTI_DISPLAY_TV_MSG_KR_NETWORK;
                            Button button = new Button()
                            {
                                Content             = ResourcesModel.Instanse.COM_TV_SID_TRY_AGAIN,
                                Margin              = new Thickness(10),
                                HorizontalAlignment = System.Windows.HorizontalAlignment.Center,
                                Style    = (System.Windows.Style)Application.Current.Resources["TheMostCommonButtonStyle"],
                                FontSize = 26,
                                Padding  = new Thickness(2)
                            };
                            stackPanel.Children.Add(button);
                            Binding binding = new Binding("RestartCommand")
                            {
                                Mode   = BindingMode.OneWay,
                                Source = mediaElementExt.DataContext
                            };
                            button.SetBinding(ButtonBase.CommandProperty, binding);
                        }
                    }
                    else
                    {
                        BitmapImage bitmapImage = new BitmapImage();
                        stackPanel.Children.Add(image);
                        bitmapImage.BeginInit();
                        bitmapImage.UriSource = new Uri("pack://application:,,,/Resources/Images/2nd_exception_icon.png");
                        bitmapImage.EndInit();
                        image.Stretch = Stretch.None;
                        image.Source  = bitmapImage;
                    }
                    mediaElementExt.NotificationContent = stackPanel;
                    MediaElementExt.SwitchStateToNonloading(mediaElementExt);
                }
                else
                {
                    VisualStateManager.GoToState(mediaElementExt, "STATE_NotificationNonVisible", true);
                }
            }
            catch
            {
                MediaElementExt.SwitchStateToLoading(mediaElementExt);
            }
        }