Java tutorial
//package com.java2s; import android.content.Context; import android.net.wifi.WifiInfo; import android.net.wifi.WifiManager; public class Main { public static final String DEFAULT_WIFI_ADDRESS = "00-00-00-00-00-00"; public static String getWifiAddress(Context pContext) { String address = DEFAULT_WIFI_ADDRESS; if (pContext != null) { WifiInfo localWifiInfo = ((WifiManager) pContext.getSystemService("wifi")).getConnectionInfo(); if (localWifiInfo != null) { address = localWifiInfo.getMacAddress(); if (address == null || address.trim().equals("")) address = DEFAULT_WIFI_ADDRESS; return address; } } return DEFAULT_WIFI_ADDRESS; } }