isPlaying method
Whether the video is currently playing.
视频是否处于正在播放中
Implementation
@override
Future<bool> isPlaying() async {
if (_isNeedDisposed) return false;
await _initPlayer.future;
BoolMsg boolMsg = await _livePlayerApi.isPlaying(PlayerMsg()..playerId = _playerId);
return boolMsg.value ?? false;
}