public Scenario1()
{
this.InitializeComponent();
// Never reuse the cached page because the model is designed to be unloaded and disposed
this.NavigationCacheMode = NavigationCacheMode.Disabled;
// Setup MediaPlayer view model
PlayerViewModel = new PlayerViewModel(Player, Dispatcher);
// Handle page load events
Loaded += Scenario1_Loaded;
Unloaded += Scenario1_Unloaded;
// Respond to playback rate changes.
Player.MediaPlayerRateChanged += Player_MediaPlayerRateChanged;
UpdatePlaybackSpeed();
}
public Scenario1()
{
this.InitializeComponent();
// Always use the cached page
this.NavigationCacheMode = NavigationCacheMode.Required;
// Setup MediaPlayer view model
PlayerViewModel = new PlayerViewModel(Player, Dispatcher);
// Handle page load events
Loaded += Scenario1_Loaded;
Unloaded += Scenario1_Unloaded;
// Respond to playback rate changes.
Player.MediaPlayerRateChanged += Player_MediaPlayerRateChanged;
UpdatePlaybackSpeed();
}
private void Scenario1_Unloaded(object sender, RoutedEventArgs e)
{
Debug.WriteLine("Scenario1_Unloaded");
// Ensure the page is no longer holding references and force a GC
// to ensure these are unloaded immediately since the app has
// only a short timeframe to reduce working set to avoid suspending
// on background transition.
SettingsService.Instance.UseCustomControlsChanged -= SettingsService_UseCustomControlsChanged;
PlaybackList.ItemFailed -= PlaybackList_ItemFailed;
PlayerViewModel.Dispose();
PlayerViewModel = null;
GC.Collect();
}