Java tutorial
//package com.java2s; /* * Remoteroid - A remote control solution for Android platform, including handy file transfer and notify-to-PC. * Copyright (C) 2012 Taeho Kim(jyte82@gmail.com), Hyomin Oh(ohmnia1112@gmail.com), Hongkyun Kim(godgjdgjd@nate.com), Yongwan Hwang(singerhwang@gmail.com) * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ import android.content.Context; import android.net.wifi.WifiManager; import android.telephony.TelephonyManager; public class Main { public static String getDeviceId(Context context) { TelephonyManager tm = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE); String uuid = tm.getDeviceId(); if (uuid == null) { WifiManager wifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE); String mac = wifiManager.getConnectionInfo().getMacAddress(); if (mac == null) throw new IllegalStateException(); return mac; } return uuid; } }