/// <summary>
/// Releases all resources used by the current instance.
/// </summary>
/// <param name="disposing">Indicates whether the method call comes from a Dispose method or from a finalizer.</param>
protected virtual void Dispose(bool disposing)
{
if (_disposed)
{
return;
}
if (disposing)
{
_player.PlaybackCompleted -= OnCompleted;
_player.PlaybackInterrupted -= OnInterrupted;
_player.ErrorOccurred -= OnErrorOccurred;
_player.Dispose();
_streamPolicy.FocusStateChanged -= OnFocusStateChanged;
_streamPolicy.Dispose();
}
_disposed = true;
}
/// <summary>
/// Asynchronously stops ringing
/// </summary>
public void StopSound()
{
if (player != null)
{
player.Stop();
player.Unprepare();
audioStreamPolicy.ReleaseFocus(AudioStreamFocusOptions.Playback, AudioStreamBehaviors.NoResume, null);
player.Dispose();
player = null;
}
if (audioStreamPolicy != null)
{
audioStreamPolicy.Dispose();
}
}
/// <summary>
/// Initializes a new instance of the <see cref="MainViewModel"/> class
/// </summary>
/// <param name="navigation">
/// Navigation instance
/// </param>
public MainViewModel(INavigation navigation)
{
Navigation = navigation;
PlayCommand = new Command(async() =>
{
_isPlaying = true;
_cts = new CancellationTokenSource();
_audioStreamPolicy = new AudioStreamPolicy(AudioStreamType.Media);
PlayCommand.ChangeCanExecute();
CancelCommand.ChangeCanExecute();
try
{
await TonePlayer.StartAsync(ToneType.Default, _audioStreamPolicy, Duration * _secUnit, _cts.Token);
}
catch (TaskCanceledException)
{
Tizen.Log.Info("TonePlayer", "A task for playing media was canceled.");
}
finally
{
_isPlaying = false;
_cts?.Dispose();
_audioStreamPolicy?.Dispose();
}
PlayCommand.ChangeCanExecute();
CancelCommand.ChangeCanExecute();
}, CanPlay);
CancelCommand = new Command(() =>
{
if (_isPlaying)
{
_cts?.Cancel();
_isPlaying = false;
}
PlayCommand.ChangeCanExecute();
CancelCommand.ChangeCanExecute();
}, CanCancel);
}