private async void NextTrackButton_Tapped(object sender, TappedRoutedEventArgs e)
{
try
{
HideToLeftAnimation();
if (!(await PlaybackActionHelper.NextTrack()))
{
showFromLeftStoryboard.Begin();
animationState = AnimationState.None;
ViewModel.ProgressRingActive = false;
return;
}
ViewModel.NextButtonEnabled = false;
await Task.Delay(1000);
await PlayStatusTracker.RefreshPlayStatus();
ViewModel.NextButtonEnabled = true;
}
catch (UnauthorizedAccessException)
{
UnauthorizedHelper.OnUnauthorizedError();
}
}
private async void PlayButton_Tapped(object sender, TappedRoutedEventArgs e)
{
try
{
ViewModel.IsPlaying = true;
ViewModel.PlayPauseButtonEnabled = false;
timer.Stop();
// This delay is a workaround for PlayPauseButtonEnabled to
// update the newly appeared UI. Otherwize it appears after
// running PlaybackActionHelper.Play().
await Task.Delay(100);
if (await PlaybackActionHelper.Play())
{
await Task.Delay(1000);
await PlayStatusTracker.RefreshPlayStatus();
ViewModel.PlayPauseButtonEnabled = true;
}
else
{
ViewModel.IsPlaying = false;
ViewModel.PlayPauseButtonEnabled = true;
await PlayStatusTracker.RefreshPlayStatus();
}
}
catch (UnauthorizedAccessException)
{
UnauthorizedHelper.OnUnauthorizedError();
}
finally
{
ViewModel.PlayPauseButtonEnabled = true;
if (!timer.IsEnabled)
{
timer.Start();
}
}
}
private async void SystemControls_ButtonPressed(SystemMediaTransportControls sender, SystemMediaTransportControlsButtonPressedEventArgs e)
{
await Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, async() =>
{
var mediaControls = SystemMediaTransportControls.GetForCurrentView();
try
{
switch (e.Button)
{
case SystemMediaTransportControlsButton.Play:
if (await PlaybackActionHelper.Play())
{
mediaControls.PlaybackStatus = MediaPlaybackStatus.Playing;
}
break;
case SystemMediaTransportControlsButton.Pause:
if (await PlaybackActionHelper.Pause())
{
mediaControls.PlaybackStatus = MediaPlaybackStatus.Paused;
}
break;
case SystemMediaTransportControlsButton.Stop:
if (await PlaybackActionHelper.Pause())
{
mediaControls.PlaybackStatus = MediaPlaybackStatus.Paused;
}
break;
case SystemMediaTransportControlsButton.Next:
if (await PlaybackActionHelper.NextTrack())
{
compactOverlayView?.PlayChangeTrackAnimation(reverse: false);
}
break;
case SystemMediaTransportControlsButton.Previous:
if (await PlaybackActionHelper.PreviousTrack())
{
compactOverlayView?.PlayChangeTrackAnimation(reverse: true);
}
// Necessary for progress bar update, in case 'previous' command goes to
// the beginning of the same track.
await Task.Delay(500);
await PlayStatusTracker.RefreshPlayStatus();
break;
}
}
catch (UnauthorizedAccessException)
{
UnauthorizedHelper.OnUnauthorizedError();
}
});
}