初始化方法以在片段中注册到wifip2p框架

Question

我试图在我的片段类中调用initialize方法，但是它说getMainLooper没有为这个类定义。

private void initializeWiFiDirect() {
        wifiP2pManager = 
          (WifiP2pManager)getActivity().getSystemService(Context.WIFI_P2P_SERVICE);

        wifiDirectChannel = wifiP2pManager.initialize(this, getMainLooper(), 
                  new ChannelListener() {
                    public void onChannelDisconnected() {
                     initializeWiFiDirect();
                    }
                  }
                );
      }

请帮帮忙。

Answer 1

你可以这样改变它-

this --> getActivity().getApplcationContext()  // basically context.
                                               // you could use BaseContext too. 

和getMainLooper --> getActivity().getMainLooper()

Channel wifiDirectChannel = wifiP2pManager.initialize(getActivity().getApplicationContext(), getActivity().getMainLooper(), 
              new ChannelListener() {
                public void onChannelDisconnected() {
                 initializeWiFiDirect();
                }
              }
            );