private async void VideoPage_PropertyChanged(SystemMediaTransportControls ds, SystemMediaTransportControlsPropertyChangedEventArgs de)
{
if (ds.SoundLevel == SoundLevel.Muted)
{
await CameraHelper.StopPreview();
}
else
{
CameraHelper.InitCamera();
//await Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () => { BottomAppBar.IsEnabled = false; });
}
}
/// <summary>
/// Invoked when application execution is being suspended. Application state is saved
/// without knowing whether the application will be terminated or resumed with the contents
/// of memory still intact.
/// </summary>
/// <param name="sender">The source of the suspend request.</param>
/// <param name="e">Details about the suspend request.</param>
private void OnSuspending(object sender, SuspendingEventArgs e)
{
var deferral = e.SuspendingOperation.GetDeferral();
//TODO: Save application state and stop any background activity
if (SystemMediaTransportControls.GetForCurrentView().SoundLevel != SoundLevel.Muted)
{
CameraHelper.StopPreview();
}
deferral.Complete();
}