增加权限：

<uses-permission android:name=”android.permission.ACCESS_WIFI_STATE” />
<uses-permission android:name=”android.permission.CHANGE_WIFI_STATE” />

WifiManager wifiManager = (WifiManager) getSystemService(WIFI_SERVICE);
			   WifiInfo wifiInfo = wifiManager.getConnectionInfo();
			  showMsg(wifiInfo.toString());//自己的显示方法

			  wifiManager.startScan();
			  List mWifiList = wifiManager.getScanResults();
			  for(int i=0;i<mWifiList.size();i++)
				  logger.d(mWifiList.get(i).toString());//自己重构的日志方法