android 获取本地IP地址

Android  获取本机Mac 地址方法：       需要在AndroidManifest.xml文件中添加权限：<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" /> public String getLocalMacAddress() {   
        WifiManager wifi = (WifiManager) getSystemService(Context.WIFI_SERVICE);   
        WifiInfo info = wifi.getConnectionInfo();   
        return info.getMacAddress();   
    }  Android 获取本机IP地址方法： 
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("WifiPreference IpAddress", ex.toString());   
        }   
        return null;   
    }