setLoop method
设置循环播放
Enable or disable loop playback.
loop Whether to enable loop playback.
Implementation
Future<void> setLoop(bool loop) async {
  await _aliPlayer.setLoop(loop);
  bool newValue = await _aliPlayer.isLoop();
  logi("setLoop: $loop, real: $newValue");
  isLoopNotifier.value = newValue;
}