onChannelLoaded method

Implementation

@override
void onChannelLoaded(String channelID) {
  _viewController.isAutoplay().then((value) {
    channelState = ChannelState.loaded;
    isAutoplay = value;
    _stateChangeListener?.call();
    _eventListeners.forEach((listener) {
      listener.onChannelLoaded(channelID);
    });
  });
}