Code to get WiFi MAC Address of Device in Android

 In Android we can get the MAC Address of a Device

Code to get WiFi MAC Address of Device in Android

if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
    // only for gingerbread and newer versions
    macAddressOfDevice = getMacAddr();
    Log.i("KAMLESH", "MAC Address : " + macAddressOfDevice);
}
else {
    WifiManager wifiMan = (WifiManager) getApplicationContext().getSystemService(Context.WIFI_SERVICE);
    WifiInfo wifiInf = wifiMan.getConnectionInfo();
    macAddressOfDevice = wifiInf.getMacAddress();
    Log.i("KAMLESH", "MAC Address : " + macAddressOfDevice);
}

public  String getMacAddr() {
    try {
        List<NetworkInterface> all = Collections.list(NetworkInterface.getNetworkInterfaces());
        for (NetworkInterface nif : all) {
            if (!nif.getName().equalsIgnoreCase("wlan0")) continue;

            byte[] macBytes = nif.getHardwareAddress();
            if (macBytes == null) {
                return "";
            }

            StringBuilder res1 = new StringBuilder();
            for (byte b : macBytes) {
                res1.append(String.format("%02X:",b));
            }

            if (res1.length() > 0) {
                res1.deleteCharAt(res1.length() - 1);
            }
            return res1.toString();
        }
    } catch (Exception ex) {
    }
    return "02:00:00:00:00:00";
}