Android Things中的WiFi P2P网络

我想使用Android Things(5.1)和几个Raspberry Pi 3或使用蓝牙来创建P2P WiFi网络.我遵循了Android开发者部分 https://developer.android.com中的指南/guide/topics/connectivity/wifip2p.html ，所以我的MainActivity如下:

I would like to create a P2P WiFi network using Android Things (5.1) and a couple of Raspberry Pi 3 or alternatively using Bluetooth. I followed the guide in the Android Developer section https://developer.android.com/guide/topics/connectivity/wifip2p.html, so my MainActivity looks like:

private class MainActtivity { private WifiP2pManager mManager; .... @Override public void onCreate(Bundle savedInstances) { mManager = (WifiP2pManager) getSystemService(Context.WIFI_P2P_SERVICE); .... } }

private class MainActtivity { private WifiP2pManager mManager; .... @Override public void onCreate(Bundle savedInstances) { mManager = (WifiP2pManager) getSystemService(Context.WIFI_P2P_SERVICE); .... } }

但是，当我尝试在启用WiFI的情况下运行该应用程序时，SystemServiceRegistry会显示一条消息，指出

However when I try to run the app, with WiFI enabled, the SystemServiceRegistry shows a message stating

没有发布针对wifip2p

No service published for: wifip2p

的服务，并且未检索到WifiP2pManager.

and the WifiP2pManager is not retrieved.

如何解决此问题?有人知道是否可以使用WiFi Direct和Android Things创建WiFi P2P网络吗?

How can I solve this issue? Does anybody know if it is possible to create a WiFi P2P network using WiFi Direct and Android Things?