Get the MAC address of your Android device without Wi-Fi

Question

How to get the MAC address of the network interface of an Android device that does not have a Wifi interface (for example, an Android emulator)? WifiInfo received through WifiManager returns null.

EDIT

To be more clear: I need to contact an existing network protocol (not developed by me) on the local network, where I have to send the MAC address of the communication interface within the payload at the registration stage.

Answer 1

Reading / sys / class / net / [something] / address as a text file

But it is unlikely to be useful in the way you think.

Answer 2

I'm going to take a leap and assume that you want this MAC address to set a unique device identifier. Mac addresses are not a way to do this.

There is an Android Developer blog entry titled “ Identifying Application Installs,” which pretty well describes the topic of generating a unique identifier, including popular methods and pros / cons. It's definitely worth a read. Very relevant for this message is the following quote:

It may be possible to get the Mac address from WiFi or Bluetooth devices. We do not recommend using this as a unique identifier. For starters, not all devices have WiFi. Also, if Wi-Fi is not turned on, the hardware may not report the Mac address.

Options available to you include TelephonyManager.getDeviceId (), android.os.Build.SERIAL and Settings.Secure.ANDROID_ID, all of which are described in more detail in the related message.

Answer 3

See this post where I presented an example of Utils.java for implementing pure-java.

Utils.getMACAddress("wlan0"); Utils.getMACAddress("eth0"); Utils.getIPAddress(true); // IPv4 Utils.getIPAddress(false); // IPv6 

Answer 4

What is the network interface on which you want to get the MAC address? If there is no wifi, you, of course, cannot get the MAC address of the Wi-Fi device. It represents physical equipment, and if not, it simply does not exist.

Answer 5

To get the MAC address of a Wi-Fi Android device using adb: adb shell getprop ril.wifi_macaddr

Use the following Java code to programmatically program it:

 Process p = Runtime.getRuntime.exec("adb", "shell", "getprop", "ril.wifi_macaddr") BufferedReader br = new BufferedReader(new InputStreamReader(p.getInputStream()); String macAddress = br.readLine();