How to find MAC address of an Android device programmatically
AndroidAndroid Problem Overview
How do i get Mac Id of android device programmatically. I have done with IMIE Code and I know how to check Mac id on device manually but have no idea how to find out programmatically.
Android Solutions
Solution 1 - Android
WifiManager wifiManager = (WifiManager) getApplicationContext().getSystemService(Context.WIFI_SERVICE);
WifiInfo wInfo = wifiManager.getConnectionInfo();
String macAddress = wInfo.getMacAddress();
Also, add below permission in your manifest file
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>
Please refer to https://developer.android.com/about/versions/marshmallow/android-6.0-changes.html#behavior-hardware-id">Android 6.0 Changes.
> To provide users with greater data protection, starting in this release, Android removes programmatic access to the device’s local hardware identifier for apps using the Wi-Fi and Bluetooth APIs. The WifiInfo.getMacAddress() and the BluetoothAdapter.getAddress() methods now return a constant value of 02:00:00:00:00:00. > > To access the hardware identifiers of nearby external devices via Bluetooth and Wi-Fi scans, your app must now have the ACCESS_FINE_LOCATION or ACCESS_COARSE_LOCATION permissions.
Solution 2 - Android
See this post where I have submitted Utils.java example to provide pure-java implementations and works without WifiManager. Some android devices may not have wifi available or are using ethernet wiring.
Utils.getMACAddress("wlan0");
Utils.getMACAddress("eth0");
Utils.getIPAddress(true); // IPv4
Utils.getIPAddress(false); // IPv6
Solution 3 - Android
With this code you will be also able to get MacAddress in Android 6.0 also
public static 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(Integer.toHexString(b & 0xFF) + ":");
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";
}
EDIT 1. This answer got a bug where a byte that in hex form got a single digit, will not appear with a "0" before it. The append to res1 has been changed to take care of it.
Solution 4 - Android
It's Working
package com.keshav.fetchmacaddress;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.net.UnknownHostException;
import java.util.Collections;
import java.util.List;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Log.e("keshav","getMacAddr -> " +getMacAddr());
}
public static 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(Integer.toHexString(b & 0xFF) + ":");
res1.append(String.format("%02X:",b));
}
if (res1.length() > 0) {
res1.deleteCharAt(res1.length() - 1);
}
return res1.toString();
}
} catch (Exception ex) {
//handle exception
}
return "";
}
}
UPDATE 1
This answer got a bug where a byte that in hex form got a single digit, will not appear with a "0" before it. The append to res1
has been changed to take care of it.
StringBuilder res1 = new StringBuilder();
for (byte b : macBytes) {
// res1.append(Integer.toHexString(b & 0xFF) + ":");
res1.append(String.format("%02X:",b));
}
Solution 5 - Android
Here the Kotlin version of Arth Tilvas answer:
fun getMacAddr(): String {
try {
val all = Collections.list(NetworkInterface.getNetworkInterfaces())
for (nif in all) {
if (!nif.getName().equals("wlan0", ignoreCase=true)) continue
val macBytes = nif.getHardwareAddress() ?: return ""
val res1 = StringBuilder()
for (b in macBytes) {
//res1.append(Integer.toHexString(b & 0xFF) + ":");
res1.append(String.format("%02X:", b))
}
if (res1.length > 0) {
res1.deleteCharAt(res1.length - 1)
}
return res1.toString()
}
} catch (ex: Exception) {
}
return "02:00:00:00:00:00"
}
Solution 6 - Android
Recent update from Developer.Android.com
> Don't work with MAC addresses MAC addresses are globally unique, not > user-resettable, and survive factory resets. For these reasons, it's > generally not recommended to use MAC address for any form of user > identification. Devices running Android 10 (API level 29) and higher > report randomized MAC addresses to all apps that aren't device owner > apps. > > Between Android 6.0 (API level 23) and Android 9 (API level 28), local > device MAC addresses, such as Wi-Fi and Bluetooth, aren't available > via third-party APIs. The WifiInfo.getMacAddress() method and the > BluetoothAdapter.getDefaultAdapter().getAddress() method both return > 02:00:00:00:00:00. > > Additionally, between Android 6.0 and Android 9, you must hold the > following permissions to access MAC addresses of nearby external > devices available via Bluetooth and Wi-Fi scans: > > Method/Property Permissions Required > > ACCESS_FINE_LOCATION or > ACCESS_COARSE_LOCATION
Solution 7 - Android
private fun getMac(): String? =
try {
NetworkInterface.getNetworkInterfaces()
.toList()
.find { networkInterface -> networkInterface.name.equals("wlan0", ignoreCase = true) }
?.hardwareAddress
?.joinToString(separator = ":") { byte -> "%02X".format(byte) }
} catch (ex: Exception) {
ex.printStackTrace()
null
}
Solution 8 - Android
There is a simple way:
Android:
String macAddress =
android.provider.Settings.Secure.getString(this.getApplicationContext().getContentResolver(), "android_id");
Xamarin:
Settings.Secure.GetString(this.ContentResolver, "android_id");