Android之获取IP

public String getLocalIpAddress() {  
        try {  
            for (Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces(); en.hasMoreElements();) {  
                NetworkInterface intf = en.nextElement();  
                for (Enumeration<InetAddress> enumIpAddr = intf.getInetAddresses(); enumIpAddr.hasMoreElements();) {  
                    InetAddress inetAddress = enumIpAddr.nextElement();  
                    if (!inetAddress.isLoopbackAddress()) {  
                        return inetAddress.getHostAddress().toString();  
                    }  
                }  
            }  
        } catch (SocketException ex) {  
            Log.e(LOG_TAG, ex.toString());  
        }  
        return null;  
    }

wifi获取公网IP测试通过