以编程方式获取Android设备的MAC

Question

我需要使用Java获取我的Android设备的MAC地址.我在网上搜索过,但是我找不到任何有用的东西.

Answer 1

正如评论中已经指出的那样,MAC地址可以通过WifiManager接收.

WifiManager manager = (WifiManager) getSystemService(Context.WIFI_SERVICE);
WifiInfo info = manager.getConnectionInfo();
String address = info.getMacAddress();

另外,不要忘记将适当的权限添加到您的 AndroidManifest.xml

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

请参阅Android 6.0更改.

为了向用户提供更好的数据保护,从此版本开始,Android会删除使用Wi-Fi和蓝牙API对应用程序的设备本地硬件标识符的编程访问.WifiInfo.getMacAddress()和BluetoothAdapter.getAddress()方法现在返回一个常量值02:00:00:00:00:00.

要通过蓝牙和Wi-Fi扫描访问附近外部设备的硬件标识符,您的应用现在必须具有ACCESS_FINE_LOCATION或ACCESS_COARSE_LOCATION权限.

Answer 2

获取MAC地址WifiInfo.getMacAddress()将无法在Marshmallow及更高版本上运行,它已被禁用并将返回常量值02:00:00:00:00:00.

Answer 3

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(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";
}

Answer 4

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

public String getMacAddress(Context context) {
    WifiManager wimanager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
    String macAddress = wimanager.getConnectionInfo().getMacAddress();
    if (macAddress == null) {
        macAddress = "Device don't have mac address or wi-fi is disabled";
    }
    return macAddress;
}

在这里有其他方式

Answer 5

我从http://robinhenniges.com/en/android6-get-mac-address-programmatically创建了这个解决方案,它对我有用!希望有帮助!

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) {
                String hex = Integer.toHexString(b & 0xFF);
                if (hex.length() == 1)
                    hex = "0".concat(hex);
                res1.append(hex.concat(":"));
            }

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

Answer 6

它与棉花糖一起工作

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) + ":");
                }

                if (res1.length() > 0) {
                    res1.deleteCharAt(res1.length() - 1);
                }
                return res1.toString();
            }
        } catch (Exception ex) {
            //handle exception
        }
        return "";
    }
}

Answer 7

您无法再获取 android 设备的硬件 MAC 地址。WifiInfo.getMacAddress() 和 BluetoothAdapter.getAddress() 方法将返回 02:00:00:00:00:00。此限制是在 Android 6.0 中引入的。

但是 Rob Anderson 找到了一个适用于 < Marshmallow 的解决方案：https : //stackoverflow.com/a/35830358