Wifi Direct - 此设备地址不适用于 android 10

Question

我使用此方法获取我设备的 MAC 地址。这在 Android 9 及以下版本中运行良好。但是在Android10中，MAC地址没有正确给出，每次都给出这个值：02: 00: 00: 00: 00: 00

public class WifiDirectBroadcastReceiver extends BroadcastReceiver {

@Override
public void onReceive(Context context, Intent intent) {
    String action = intent.getAction();

    switch (action) {
     
        case WifiP2pManager.WIFI_P2P_THIS_DEVICE_CHANGED_ACTION:

            WifiP2pDevice device = intent.getParcelableExtra(WifiP2pManager.EXTRA_WIFI_P2P_DEVICE);

            Log.i("My device wifi direct Mac address", device.deviceAddress);

            break;
     }
}
}

Answer 1

  public String getWFDMacAddress() {
        try {
            List<NetworkInterface> interfaces = Collections.list(NetworkInterface.getNetworkInterfaces());
            for (NetworkInterface ntwInterface : interfaces) {

                if (ntwInterface.getName().equalsIgnoreCase("p2p0")) {
                    byte[] byteMac = ntwInterface.getHardwareAddress();
                    if (byteMac == null) {
                        return null;
                    }
                    StringBuilder strBuilder = new StringBuilder();
                    for (byte b : byteMac) {
                        strBuilder.append(String.format("%02X:", b));
                    }

                    if (strBuilder.length() > 0) {
                        strBuilder.deleteCharAt(strBuilder.length() - 1);
                    }

                    return strBuilder.toString();
                }

            }
        } catch (Exception ignored) {
        }
        return null;
    }