discoveryService method

void discoveryService()

发现设备服务

Implementation

void discoveryService() {
  if (_state != DeviceState.destroyed && _state == DeviceState.connected) {
    //已连接才能去发现服务
    FlutterBlueElves.instance._channel
        .invokeMethod('discoverService', {"id": _id}); //去发现服务
  }
}