getCount method

@override int getCount()

设备数量

Implementation

@override
int getCount() {
  Map<String, dynamic> convertJson = {
    "method": InvokeMethod.kNERtcGetDeviceCount,
    "type": type.index,
    "usage": this.usage.index
  };
  int reply = InvokeMethod_(jsonEncode(convertJson));
  return reply;
}