public void CloseChannel()
{
EnsureChannelExists();
_channel.Close();
_channel = null;
}
private void EnsureChannelExists()
{
if (_channel != null)
return;
// First, try to get the notification channel for this app
_channel = _channelFactory.GetNotificationChannel(_channelName);
// Ensure that we're listening to the correct event handlers
SetupChannelEventHandlers();
}