Java tutorial
//package com.java2s; /* * Copyright (C) 2016 android@19code.com * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import android.content.Context; import android.net.wifi.WifiManager; public class Main { @SuppressWarnings("MissingPermission") public static String getWifiMacAddr(Context ctx) { String macAddr = ""; try { WifiManager wifi = (WifiManager) ctx.getSystemService(Context.WIFI_SERVICE); macAddr = wifi.getConnectionInfo().getMacAddress(); if (macAddr == null) { macAddr = ""; } } catch (Exception e) { e.printStackTrace(); } return macAddr; } }