获取wifi网络中，终端上的ip地址的方法

 public String getWifiIP(){       WifiManager wifiManager = (WifiManager) getSystemService(WIFI_SERVICE);       if(WifiManager.WIFI_STATE_ENABLED==wifiManager.getWifiState()){           WifiInfo wifiInfo = wifiManager.getConnectionInfo();           int i = wifiInfo.getIpAddress();           wifiInfo=null;           wifiManager=null;           String res=(i&0xFF)+"."+((i>>8)&0xFF)+"."+((i>>16)&0xFF)+ ".230";           Log.i(TAG,"ip="+res);           return res;       }else{           return null;       }   }