subscribeAllRemoteAudio method
订阅/取消订阅所有用户音频(后续加入的用户也同样生效)
subscribe
true: 订阅 false: 取消订阅
Implementation
Future<int> subscribeAllRemoteAudio(bool subscribe) async {
IntValue reply =
await _api.subscribeAllRemoteAudio(BoolValue()..value = subscribe);
return reply.value ?? -1;
}