stop method
Stop playback
停止播放 return 是否停止成功 if stop successful
Implementation
@override
Future<bool> stop({bool isNeedClear = false}) async {
if (_isNeedDisposed) return false;
await _initPlayer.future;
final result = await _vodPlayerApi.stop(BoolPlayerMsg()
..value = isNeedClear
..playerId = _playerId);
_changeState(TXPlayerState.stopped);
return result.value ?? false;
}