public MainPage()
{
InitializeComponent();
_mediaPlayerHandle = new MediaPlayerHandle(Dispatcher);
_mediaPlayerHandle.MessageReceivedFromBackground += OnMessageReceivedFromBackground;
_mediaPlayerHandle.CurrentStateChanged += OnCurrentStateChanged;
NavigationCacheMode = NavigationCacheMode.Required;
_timer = new DispatcherTimer
{
Interval = TimeSpan.FromSeconds(0.6)
};
var count = 0;
_timer.Tick += (sender, o) =>
{
var mediaPlayer = MediaPlayer;
if (null == mediaPlayer)
{
return;
}
var positionText = string.Empty;
try
{
var position = mediaPlayer.Position;
positionText = position.ToString("G");
}
catch (Exception ex)
{
Debug.WriteLine("MainPage position update failed: " + ex.Message);
// The COM object is probably dead...
CleanupFailedPlayer();
}
txtPosition.Text = positionText;
if (++count < 5)
{
return;
}
count = 0;
_mediaPlayerHandle.NotifyBackground(BackgroundNotificationType.Memory);
};
}
public static void NotifyBackground(this MediaPlayerHandle handle, SystemMediaTransportControlsButton button)
{
handle.NotifyBackground(BackgroundNotificationType.Smtc, button.ToString());
}
public MainPage()
{
InitializeComponent();
_mediaPlayerHandle = new MediaPlayerHandle(Dispatcher);
_mediaPlayerHandle.MessageReceivedFromBackground += OnMessageReceivedFromBackground;
_mediaPlayerHandle.CurrentStateChanged += OnCurrentStateChanged;
NavigationCacheMode = NavigationCacheMode.Required;
_timer = new DispatcherTimer
{
Interval = TimeSpan.FromSeconds(0.6)
};
var count = 0;
_timer.Tick += (sender, o) =>
{
var mediaPlayer = MediaPlayer;
if (null == mediaPlayer)
return;
var positionText = string.Empty;
try
{
var position = mediaPlayer.Position;
positionText = position.ToString("G");
}
catch (Exception ex)
{
Debug.WriteLine("MainPage position update failed: " + ex.Message);
// The COM object is probably dead...
CleanupFailedPlayer();
}
txtPosition.Text = positionText;
if (++count < 5)
return;
count = 0;
_mediaPlayerHandle.NotifyBackground(BackgroundNotificationType.Memory);
};
}
void gcButton_Click(object sender, RoutedEventArgs e)
{
Debug.WriteLine("MainPage gc");
_mediaPlayerHandle.NotifyBackground(BackgroundNotificationType.Gc);
}