How to Get the Mac Address (Physical Hardware Address) of your phone’s (Wifi) network from your Android App

Below, I’m going to teach you “How to Get the Mac Address (Physical Hardware Address) of your phone’s (Wifi) network from your Android App?” Let’s start the article to learn about it.

Get the Mac Address (Physical Hardware Address) of your phone’s (Wifi) network from your Android App

package com.programmerworld.myapplication;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.view.View;
import android.widget.TextView;

import java.net.NetworkInterface;
import java.net.SocketException;
import java.util.Collections;
import java.util.List;

public class MainActivity extends AppCompatActivity {

    private TextView textView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        textView = findViewById(R.id.textView);
    }

    public void buttonClick(View view){

        try {
            List<NetworkInterface> networkInterfaceList = Collections.list(NetworkInterface.getNetworkInterfaces());

            String stringMac = "";

            for (NetworkInterface networkInterface:networkInterfaceList){
                if (networkInterface.getName().equalsIgnoreCase("wlan0")){
                    for (int i=0; i<networkInterface.getHardwareAddress().length;i++){
                        String stringMacByte = Integer.toHexString(networkInterface.getHardwareAddress()[i] & 0xFF);

                        if (stringMacByte.length() == 1){
                            stringMacByte = "0" + stringMacByte;
                        }

                        stringMac = stringMac + stringMacByte.toUpperCase() + ":";
                    }
                    break;
                }
            }

            textView.setText(stringMac.substring(0,stringMac.length()-1));


        } catch (SocketException e) {
            e.printStackTrace();
        }
    }
}

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.programmerworld.myapplication">

    <uses-permission android:name="android.permission.INTERNET"/>
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <TextView
        android:id="@+id/textView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Hello World!"
        android:textSize="30sp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <Button
        android:id="@+id/button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="107dp"
        android:layout_marginTop="101dp"
        android:onClick="buttonClick"
        android:text="@string/get_mac_address"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

</androidx.constraintlayout.widget.ConstraintLayout>

Final Words

I hope this article helps you to know about “How to Get the Mac Address (Physical Hardware Address) of your phone’s (Wifi) network from your Android App”. If you face any issues please let me know via the comment section. Share this article with other Android program developers via social networks.